1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
24 #include "safe-ctype.h"
26 #include "dw2gencfi.h"
27 #include "opcode/ppc.h"
31 #include "dwarf2dbg.h"
38 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40 /* Tell the main code what the endianness is. */
41 extern int target_big_endian;
43 /* Whether or not, we've set target_big_endian. */
44 static int set_target_endian = 0;
46 /* Whether to use user friendly register names. */
47 #ifndef TARGET_REG_NAMES_P
49 #define TARGET_REG_NAMES_P TRUE
51 #define TARGET_REG_NAMES_P FALSE
55 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
58 /* #lo(value) denotes the least significant 16 bits of the indicated. */
59 #define PPC_LO(v) ((v) & 0xffff)
61 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
62 #define PPC_HI(v) (((v) >> 16) & 0xffff)
64 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
65 the indicated value, compensating for #lo() being treated as a
67 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
69 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
70 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
72 /* #highera(value) denotes bits 32 through 47 of the indicated value,
73 compensating for #lo() being treated as a signed number. */
74 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
76 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
77 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
79 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
80 compensating for #lo being treated as a signed number. */
81 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
83 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
87 static void ppc_macro (char *, const struct powerpc_macro *);
88 static void ppc_byte (int);
90 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
91 static void ppc_tc (int);
92 static void ppc_machine (int);
96 static void ppc_comm (int);
97 static void ppc_bb (int);
98 static void ppc_bc (int);
99 static void ppc_bf (int);
100 static void ppc_biei (int);
101 static void ppc_bs (int);
102 static void ppc_eb (int);
103 static void ppc_ec (int);
104 static void ppc_ef (int);
105 static void ppc_es (int);
106 static void ppc_csect (int);
107 static void ppc_change_csect (symbolS *, offsetT);
108 static void ppc_function (int);
109 static void ppc_extern (int);
110 static void ppc_lglobl (int);
111 static void ppc_section (int);
112 static void ppc_named_section (int);
113 static void ppc_stabx (int);
114 static void ppc_rename (int);
115 static void ppc_toc (int);
116 static void ppc_xcoff_cons (int);
117 static void ppc_vbyte (int);
121 static void ppc_elf_cons (int);
122 static void ppc_elf_rdata (int);
123 static void ppc_elf_lcomm (int);
127 static void ppc_previous (int);
128 static void ppc_pdata (int);
129 static void ppc_ydata (int);
130 static void ppc_reldata (int);
131 static void ppc_rdata (int);
132 static void ppc_ualong (int);
133 static void ppc_znop (int);
134 static void ppc_pe_comm (int);
135 static void ppc_pe_section (int);
136 static void ppc_pe_function (int);
137 static void ppc_pe_tocd (int);
140 /* Generic assembler global variables which must be defined by all
144 /* This string holds the chars that always start a comment. If the
145 pre-processor is disabled, these aren't very useful. The macro
146 tc_comment_chars points to this. We use this, rather than the
147 usual comment_chars, so that we can switch for Solaris conventions. */
148 static const char ppc_solaris_comment_chars[] = "#!";
149 static const char ppc_eabi_comment_chars[] = "#";
151 #ifdef TARGET_SOLARIS_COMMENT
152 const char *ppc_comment_chars = ppc_solaris_comment_chars;
154 const char *ppc_comment_chars = ppc_eabi_comment_chars;
157 const char comment_chars[] = "#";
160 /* Characters which start a comment at the beginning of a line. */
161 const char line_comment_chars[] = "#";
163 /* Characters which may be used to separate multiple commands on a
165 const char line_separator_chars[] = ";";
167 /* Characters which are used to indicate an exponent in a floating
169 const char EXP_CHARS[] = "eE";
171 /* Characters which mean that a number is a floating point constant,
173 const char FLT_CHARS[] = "dD";
175 /* Anything that can start an operand needs to be mentioned here,
176 to stop the input scrubber eating whitespace. */
177 const char ppc_symbol_chars[] = "%[";
179 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
180 int ppc_cie_data_alignment;
182 /* The type of processor we are assembling for. This is one or more
183 of the PPC_OPCODE flags defined in opcode/ppc.h. */
184 ppc_cpu_t ppc_cpu = 0;
186 /* The target specific pseudo-ops which we support. */
188 const pseudo_typeS md_pseudo_table[] =
190 /* Pseudo-ops which must be overridden. */
191 { "byte", ppc_byte, 0 },
194 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
195 legitimately belong in the obj-*.c file. However, XCOFF is based
196 on COFF, and is only implemented for the RS/6000. We just use
197 obj-coff.c, and add what we need here. */
198 { "comm", ppc_comm, 0 },
199 { "lcomm", ppc_comm, 1 },
203 { "bi", ppc_biei, 0 },
205 { "csect", ppc_csect, 0 },
206 { "data", ppc_section, 'd' },
210 { "ei", ppc_biei, 1 },
212 { "extern", ppc_extern, 0 },
213 { "function", ppc_function, 0 },
214 { "lglobl", ppc_lglobl, 0 },
215 { "rename", ppc_rename, 0 },
216 { "section", ppc_named_section, 0 },
217 { "stabx", ppc_stabx, 0 },
218 { "text", ppc_section, 't' },
219 { "toc", ppc_toc, 0 },
220 { "long", ppc_xcoff_cons, 2 },
221 { "llong", ppc_xcoff_cons, 3 },
222 { "word", ppc_xcoff_cons, 1 },
223 { "short", ppc_xcoff_cons, 1 },
224 { "vbyte", ppc_vbyte, 0 },
228 { "llong", ppc_elf_cons, 8 },
229 { "quad", ppc_elf_cons, 8 },
230 { "long", ppc_elf_cons, 4 },
231 { "word", ppc_elf_cons, 2 },
232 { "short", ppc_elf_cons, 2 },
233 { "rdata", ppc_elf_rdata, 0 },
234 { "rodata", ppc_elf_rdata, 0 },
235 { "lcomm", ppc_elf_lcomm, 0 },
239 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
240 { "previous", ppc_previous, 0 },
241 { "pdata", ppc_pdata, 0 },
242 { "ydata", ppc_ydata, 0 },
243 { "reldata", ppc_reldata, 0 },
244 { "rdata", ppc_rdata, 0 },
245 { "ualong", ppc_ualong, 0 },
246 { "znop", ppc_znop, 0 },
247 { "comm", ppc_pe_comm, 0 },
248 { "lcomm", ppc_pe_comm, 1 },
249 { "section", ppc_pe_section, 0 },
250 { "function", ppc_pe_function,0 },
251 { "tocd", ppc_pe_tocd, 0 },
254 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
256 { "machine", ppc_machine, 0 },
263 /* Predefined register names if -mregnames (or default for Windows NT).
264 In general, there are lots of them, in an attempt to be compatible
265 with a number of other Windows NT assemblers. */
267 /* Structure to hold information about predefined registers. */
274 /* List of registers that are pre-defined:
276 Each general register has predefined names of the form:
277 1. r<reg_num> which has the value <reg_num>.
278 2. r.<reg_num> which has the value <reg_num>.
280 Each floating point register has predefined names of the form:
281 1. f<reg_num> which has the value <reg_num>.
282 2. f.<reg_num> which has the value <reg_num>.
284 Each vector unit register has predefined names of the form:
285 1. v<reg_num> which has the value <reg_num>.
286 2. v.<reg_num> which has the value <reg_num>.
288 Each condition register has predefined names of the form:
289 1. cr<reg_num> which has the value <reg_num>.
290 2. cr.<reg_num> which has the value <reg_num>.
292 There are individual registers as well:
293 sp or r.sp has the value 1
294 rtoc or r.toc has the value 2
295 fpscr has the value 0
301 dsisr has the value 18
303 sdr1 has the value 25
304 srr0 has the value 26
305 srr1 has the value 27
307 The table is sorted. Suitable for searching by a binary search. */
309 static const struct pd_reg pre_defined_registers[] =
311 { "cr.0", 0 }, /* Condition Registers */
331 { "dar", 19 }, /* Data Access Register */
332 { "dec", 22 }, /* Decrementer */
333 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
335 { "f.0", 0 }, /* Floating point registers */
403 /* Quantization registers used with pair single instructions. */
421 { "lr", 8 }, /* Link Register */
425 { "r.0", 0 }, /* General Purpose Registers */
458 { "r.sp", 1 }, /* Stack Pointer */
460 { "r.toc", 2 }, /* Pointer to the table of contents */
462 { "r0", 0 }, /* More general purpose registers */
495 { "rtoc", 2 }, /* Table of contents */
497 { "sdr1", 25 }, /* Storage Description Register 1 */
501 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
502 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
504 { "v.0", 0 }, /* Vector registers */
574 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
576 /* Given NAME, find the register number associated with that name, return
577 the integer value associated with the given name or -1 on failure. */
580 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
582 int middle, low, high;
590 middle = (low + high) / 2;
591 cmp = strcasecmp (name, regs[middle].name);
597 return regs[middle].value;
605 * Summary of register_name.
607 * in: Input_line_pointer points to 1st char of operand.
609 * out: A expressionS.
610 * The operand may have been a register: in this case, X_op == O_register,
611 * X_add_number is set to the register number, and truth is returned.
612 * Input_line_pointer->(next non-blank) char after operand, or is in its
617 register_name (expressionS *expressionP)
624 /* Find the spelling of the operand. */
625 start = name = input_line_pointer;
626 if (name[0] == '%' && ISALPHA (name[1]))
627 name = ++input_line_pointer;
629 else if (!reg_names_p || !ISALPHA (name[0]))
632 c = get_symbol_end ();
633 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
635 /* Put back the delimiting char. */
636 *input_line_pointer = c;
638 /* Look to see if it's in the register table. */
641 expressionP->X_op = O_register;
642 expressionP->X_add_number = reg_number;
644 /* Make the rest nice. */
645 expressionP->X_add_symbol = NULL;
646 expressionP->X_op_symbol = NULL;
650 /* Reset the line as if we had not done anything. */
651 input_line_pointer = start;
655 /* This function is called for each symbol seen in an expression. It
656 handles the special parsing which PowerPC assemblers are supposed
657 to use for condition codes. */
659 /* Whether to do the special parsing. */
660 static bfd_boolean cr_operand;
662 /* Names to recognize in a condition code. This table is sorted. */
663 static const struct pd_reg cr_names[] =
680 /* Parsing function. This returns non-zero if it recognized an
684 ppc_parse_name (const char *name, expressionS *expr)
693 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
698 expr->X_op = O_constant;
699 expr->X_add_number = val;
704 /* Local variables. */
706 /* Whether to target xcoff64/elf64. */
707 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
709 /* Opcode hash table. */
710 static struct hash_control *ppc_hash;
712 /* Macro hash table. */
713 static struct hash_control *ppc_macro_hash;
716 /* What type of shared library support to use. */
717 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
719 /* Flags to set in the elf header. */
720 static flagword ppc_flags = 0;
722 /* Whether this is Solaris or not. */
723 #ifdef TARGET_SOLARIS_COMMENT
724 #define SOLARIS_P TRUE
726 #define SOLARIS_P FALSE
729 static bfd_boolean msolaris = SOLARIS_P;
734 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
735 using a bunch of different sections. These assembler sections,
736 however, are all encompassed within the .text or .data sections of
737 the final output file. We handle this by using different
738 subsegments within these main segments. */
740 /* Next subsegment to allocate within the .text segment. */
741 static subsegT ppc_text_subsegment = 2;
743 /* Linked list of csects in the text section. */
744 static symbolS *ppc_text_csects;
746 /* Next subsegment to allocate within the .data segment. */
747 static subsegT ppc_data_subsegment = 2;
749 /* Linked list of csects in the data section. */
750 static symbolS *ppc_data_csects;
752 /* The current csect. */
753 static symbolS *ppc_current_csect;
755 /* The RS/6000 assembler uses a TOC which holds addresses of functions
756 and variables. Symbols are put in the TOC with the .tc pseudo-op.
757 A special relocation is used when accessing TOC entries. We handle
758 the TOC as a subsegment within the .data segment. We set it up if
759 we see a .toc pseudo-op, and save the csect symbol here. */
760 static symbolS *ppc_toc_csect;
762 /* The first frag in the TOC subsegment. */
763 static fragS *ppc_toc_frag;
765 /* The first frag in the first subsegment after the TOC in the .data
766 segment. NULL if there are no subsegments after the TOC. */
767 static fragS *ppc_after_toc_frag;
769 /* The current static block. */
770 static symbolS *ppc_current_block;
772 /* The COFF debugging section; set by md_begin. This is not the
773 .debug section, but is instead the secret BFD section which will
774 cause BFD to set the section number of a symbol to N_DEBUG. */
775 static asection *ppc_coff_debug_section;
777 #endif /* OBJ_XCOFF */
781 /* Various sections that we need for PE coff support. */
782 static segT ydata_section;
783 static segT pdata_section;
784 static segT reldata_section;
785 static segT rdata_section;
786 static segT tocdata_section;
788 /* The current section and the previous section. See ppc_previous. */
789 static segT ppc_previous_section;
790 static segT ppc_current_section;
795 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
796 #define PPC_APUINFO_ISEL 0x40
797 #define PPC_APUINFO_PMR 0x41
798 #define PPC_APUINFO_RFMCI 0x42
799 #define PPC_APUINFO_CACHELCK 0x43
800 #define PPC_APUINFO_SPE 0x100
801 #define PPC_APUINFO_EFS 0x101
802 #define PPC_APUINFO_BRLOCK 0x102
805 * We keep a list of APUinfo
807 unsigned long *ppc_apuinfo_list;
808 unsigned int ppc_apuinfo_num;
809 unsigned int ppc_apuinfo_num_alloc;
813 const char *const md_shortopts = "b:l:usm:K:VQ:";
815 const char *const md_shortopts = "um:";
817 const struct option md_longopts[] = {
818 {NULL, no_argument, NULL, 0}
820 const size_t md_longopts_size = sizeof (md_longopts);
823 /* Handle -m options that set cpu type, and .machine arg. */
826 parse_cpu (const char *arg)
828 ppc_cpu_t retain_flags =
829 ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX | PPC_OPCODE_SPE);
831 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
833 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
834 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
835 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
836 else if (strcmp (arg, "pwr") == 0)
837 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
838 /* -m601 means to assemble for the PowerPC 601, which includes
839 instructions that are holdovers from the Power. */
840 else if (strcmp (arg, "601") == 0)
841 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
842 | PPC_OPCODE_601 | PPC_OPCODE_32);
843 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
845 else if (strcmp (arg, "ppc") == 0
846 || strcmp (arg, "ppc32") == 0
847 || strcmp (arg, "603") == 0
848 || strcmp (arg, "604") == 0)
849 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
850 /* Do all PPC750s have paired single ops? */
851 else if (strcmp (arg, "750cl") == 0)
852 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_PPCPS;
853 else if (strcmp (arg, "403") == 0)
854 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
855 | PPC_OPCODE_403 | PPC_OPCODE_32);
856 else if (strcmp (arg, "405") == 0)
857 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
858 | PPC_OPCODE_403 | PPC_OPCODE_405 | PPC_OPCODE_32);
859 else if (strcmp (arg, "440") == 0
860 || strcmp (arg, "464") == 0)
861 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
862 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
863 else if (strcmp (arg, "7400") == 0
864 || strcmp (arg, "7410") == 0
865 || strcmp (arg, "7450") == 0
866 || strcmp (arg, "7455") == 0)
867 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
868 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
869 else if (strcmp (arg, "e300") == 0)
870 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
872 else if (strcmp (arg, "altivec") == 0)
875 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC;
877 retain_flags |= PPC_OPCODE_ALTIVEC;
879 else if (strcmp (arg, "vsx") == 0)
882 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC;
884 retain_flags |= PPC_OPCODE_VSX;
886 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
888 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
889 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
890 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
891 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
893 else if (strcmp (arg, "e500mc") == 0)
895 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
896 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
897 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
899 else if (strcmp (arg, "spe") == 0)
902 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_EFS;
904 retain_flags |= PPC_OPCODE_SPE;
906 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
908 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
910 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
912 else if (strcmp (arg, "ppc64bridge") == 0)
914 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
915 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
917 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
918 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
920 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
922 /* -mbooke64 means enable 64-bit BookE support. */
923 else if (strcmp (arg, "booke64") == 0)
925 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
926 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
928 else if (strcmp (arg, "power4") == 0)
930 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
931 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
933 else if (strcmp (arg, "power5") == 0)
935 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
936 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
937 | PPC_OPCODE_POWER5);
939 else if (strcmp (arg, "power6") == 0)
941 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
942 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
943 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
944 | PPC_OPCODE_ALTIVEC);
946 else if (strcmp (arg, "power7") == 0)
948 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
949 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
950 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
951 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX);
953 else if (strcmp (arg, "cell") == 0)
955 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
956 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
957 | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC);
959 /* -mcom means assemble for the common intersection between Power
960 and PowerPC. At present, we just allow the union, rather
961 than the intersection. */
962 else if (strcmp (arg, "com") == 0)
963 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
964 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
965 else if (strcmp (arg, "any") == 0)
966 ppc_cpu |= PPC_OPCODE_ANY;
970 /* Make sure the the Altivec, VSX and SPE bits are not lost. */
971 ppc_cpu |= retain_flags;
976 md_parse_option (int c, char *arg)
981 /* -u means that any undefined symbols should be treated as
982 external, which is the default for gas anyhow. */
987 /* Solaris as takes -le (presumably for little endian). For completeness
988 sake, recognize -be also. */
989 if (strcmp (arg, "e") == 0)
991 target_big_endian = 0;
992 set_target_endian = 1;
1000 if (strcmp (arg, "e") == 0)
1002 target_big_endian = 1;
1003 set_target_endian = 1;
1011 /* Recognize -K PIC. */
1012 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1015 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1023 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1025 if (strcmp (arg, "64") == 0)
1030 as_fatal (_("%s unsupported"), "-a64");
1033 else if (strcmp (arg, "32") == 0)
1040 if (parse_cpu (arg))
1043 else if (strcmp (arg, "regnames") == 0)
1046 else if (strcmp (arg, "no-regnames") == 0)
1047 reg_names_p = FALSE;
1050 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1051 that require relocation. */
1052 else if (strcmp (arg, "relocatable") == 0)
1054 shlib = SHLIB_MRELOCATABLE;
1055 ppc_flags |= EF_PPC_RELOCATABLE;
1058 else if (strcmp (arg, "relocatable-lib") == 0)
1060 shlib = SHLIB_MRELOCATABLE;
1061 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1064 /* -memb, set embedded bit. */
1065 else if (strcmp (arg, "emb") == 0)
1066 ppc_flags |= EF_PPC_EMB;
1068 /* -mlittle/-mbig set the endianess. */
1069 else if (strcmp (arg, "little") == 0
1070 || strcmp (arg, "little-endian") == 0)
1072 target_big_endian = 0;
1073 set_target_endian = 1;
1076 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1078 target_big_endian = 1;
1079 set_target_endian = 1;
1082 else if (strcmp (arg, "solaris") == 0)
1085 ppc_comment_chars = ppc_solaris_comment_chars;
1088 else if (strcmp (arg, "no-solaris") == 0)
1091 ppc_comment_chars = ppc_eabi_comment_chars;
1096 as_bad (_("invalid switch -m%s"), arg);
1102 /* -V: SVR4 argument to print version ID. */
1104 print_version_id ();
1107 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1108 should be emitted or not. FIXME: Not implemented. */
1112 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1113 rather than .stabs.excl, which is ignored by the linker.
1114 FIXME: Not implemented. */
1130 md_show_usage (FILE *stream)
1132 fprintf (stream, _("\
1134 -a32 generate ELF32/XCOFF32\n\
1135 -a64 generate ELF64/XCOFF64\n\
1137 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1138 -mpwr generate code for POWER (RIOS1)\n\
1139 -m601 generate code for PowerPC 601\n\
1140 -mppc, -mppc32, -m603, -m604\n\
1141 generate code for PowerPC 603/604\n\
1142 -m403 generate code for PowerPC 403\n\
1143 -m405 generate code for PowerPC 405\n\
1144 -m440 generate code for PowerPC 440\n\
1145 -m464 generate code for PowerPC 464\n\
1146 -m7400, -m7410, -m7450, -m7455\n\
1147 generate code for PowerPC 7400/7410/7450/7455\n\
1148 -m750cl generate code for PowerPC 750cl\n"));
1149 fprintf (stream, _("\
1150 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1151 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1152 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1153 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1154 -mpower4 generate code for Power4 architecture\n\
1155 -mpower5 generate code for Power5 architecture\n\
1156 -mpower6 generate code for Power6 architecture\n\
1157 -mpower7 generate code for Power7 architecture\n\
1158 -mcell generate code for Cell Broadband Engine architecture\n\
1159 -mcom generate code Power/PowerPC common instructions\n\
1160 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1161 fprintf (stream, _("\
1162 -maltivec generate code for AltiVec\n\
1163 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1164 -me300 generate code for PowerPC e300 family\n\
1165 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1166 -me500mc, generate code for Freescale e500mc core complex\n\
1167 -mspe generate code for Motorola SPE instructions\n\
1168 -mregnames Allow symbolic names for registers\n\
1169 -mno-regnames Do not allow symbolic names for registers\n"));
1171 fprintf (stream, _("\
1172 -mrelocatable support for GCC's -mrelocatble option\n\
1173 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1174 -memb set PPC_EMB bit in ELF flags\n\
1175 -mlittle, -mlittle-endian, -l, -le\n\
1176 generate code for a little endian machine\n\
1177 -mbig, -mbig-endian, -b, -be\n\
1178 generate code for a big endian machine\n\
1179 -msolaris generate code for Solaris\n\
1180 -mno-solaris do not generate code for Solaris\n\
1181 -V print assembler version number\n\
1182 -Qy, -Qn ignored\n"));
1186 /* Set ppc_cpu if it is not already set. */
1191 const char *default_os = TARGET_OS;
1192 const char *default_cpu = TARGET_CPU;
1194 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1197 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1198 else if (strncmp (default_os, "aix", 3) == 0
1199 && default_os[3] >= '4' && default_os[3] <= '9')
1200 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1201 else if (strncmp (default_os, "aix3", 4) == 0)
1202 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1203 else if (strcmp (default_cpu, "rs6000") == 0)
1204 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1205 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1206 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1208 as_fatal (_("Unknown default cpu = %s, os = %s"),
1209 default_cpu, default_os);
1213 /* Figure out the BFD architecture to use. This function and ppc_mach
1214 are called well before md_begin, when the output file is opened. */
1216 enum bfd_architecture
1219 const char *default_cpu = TARGET_CPU;
1222 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1223 return bfd_arch_powerpc;
1224 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1225 return bfd_arch_rs6000;
1226 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1228 if (strcmp (default_cpu, "rs6000") == 0)
1229 return bfd_arch_rs6000;
1230 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1231 return bfd_arch_powerpc;
1234 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1235 return bfd_arch_unknown;
1242 return bfd_mach_ppc64;
1243 else if (ppc_arch () == bfd_arch_rs6000)
1244 return bfd_mach_rs6k;
1246 return bfd_mach_ppc;
1250 ppc_target_format (void)
1254 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1256 return "xcoff-powermac";
1259 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1261 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1267 return "elf32-powerpc-vxworks";
1269 return (target_big_endian
1270 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1271 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1276 /* Insert opcodes and macros into hash tables. Called at startup and
1280 ppc_setup_opcodes (void)
1282 const struct powerpc_opcode *op;
1283 const struct powerpc_opcode *op_end;
1284 const struct powerpc_macro *macro;
1285 const struct powerpc_macro *macro_end;
1286 bfd_boolean bad_insn = FALSE;
1288 if (ppc_hash != NULL)
1289 hash_die (ppc_hash);
1290 if (ppc_macro_hash != NULL)
1291 hash_die (ppc_macro_hash);
1293 /* Insert the opcodes into a hash table. */
1294 ppc_hash = hash_new ();
1296 if (ENABLE_CHECKING)
1300 /* Check operand masks. Code here and in the disassembler assumes
1301 all the 1's in the mask are contiguous. */
1302 for (i = 0; i < num_powerpc_operands; ++i)
1304 unsigned long mask = powerpc_operands[i].bitm;
1305 unsigned long right_bit;
1308 right_bit = mask & -mask;
1310 right_bit = mask & -mask;
1311 if (mask != right_bit)
1313 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1316 for (j = i + 1; j < num_powerpc_operands; ++j)
1317 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1318 sizeof (powerpc_operands[0])) == 0)
1320 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1327 op_end = powerpc_opcodes + powerpc_num_opcodes;
1328 for (op = powerpc_opcodes; op < op_end; op++)
1330 if (ENABLE_CHECKING)
1332 const unsigned char *o;
1333 unsigned long omask = op->mask;
1335 if (op != powerpc_opcodes)
1337 /* The major opcodes had better be sorted. Code in the
1338 disassembler assumes the insns are sorted according to
1340 if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode))
1342 as_bad (_("major opcode is not sorted for %s"),
1347 /* Warn if the table isn't more strictly ordered.
1348 Unfortunately it doesn't seem possible to order the
1349 table on much more than the major opcode, which makes
1350 it difficult to implement a binary search in the
1351 disassembler. The problem is that we have multiple
1352 ways to disassemble instructions, and we usually want
1353 to choose a more specific form (with more bits set in
1354 the opcode) than a more general form. eg. all of the
1355 following are equivalent:
1356 bne label # opcode = 0x40820000, mask = 0xff830003
1357 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1358 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1360 There are also cases where the table needs to be out
1361 of order to disassemble the correct instruction for
1362 processor variants. eg. "lhae" booke64 insn must be
1363 found before "ld" ppc64 insn. */
1366 unsigned long t1 = op[0].opcode;
1367 unsigned long t2 = op[-1].opcode;
1369 if (((t1 ^ t2) & 0xfc0007ff) == 0
1370 && (t1 & 0xfc0006df) == 0x7c000286)
1372 /* spr field is split. */
1373 t1 = ((t1 & ~0x1ff800)
1374 | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5));
1375 t2 = ((t2 & ~0x1ff800)
1376 | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5));
1379 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1380 op[0].name, op[0].opcode, op[0].mask,
1381 op[-1].name, op[-1].opcode, op[-1].mask);
1385 /* The mask had better not trim off opcode bits. */
1386 if ((op->opcode & omask) != op->opcode)
1388 as_bad (_("mask trims opcode bits for %s"),
1393 /* The operands must not overlap the opcode or each other. */
1394 for (o = op->operands; *o; ++o)
1395 if (*o >= num_powerpc_operands)
1397 as_bad (_("operand index error for %s"),
1403 const struct powerpc_operand *operand = &powerpc_operands[*o];
1404 if (operand->shift >= 0)
1406 unsigned long mask = operand->bitm << operand->shift;
1409 as_bad (_("operand %d overlap in %s"),
1410 (int) (o - op->operands), op->name);
1418 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1419 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1420 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1421 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1422 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1423 /* Certain instructions (eg: extsw) do not exist in the
1424 32-bit BookE instruction set, but they do exist in the
1425 64-bit BookE instruction set, and other PPC instruction
1426 sets. Check to see if the opcode has the BOOKE64 flag set.
1427 If it does make sure that the target CPU is not the BookE32. */
1428 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1429 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1430 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1431 && ((ppc_cpu & PPC_OPCODE_POWER4) == 0
1432 || (op->flags & PPC_OPCODE_NOPOWER4) == 0))
1436 retval = hash_insert (ppc_hash, op->name, (void *) op);
1439 /* Ignore Power duplicates for -m601. */
1440 if ((ppc_cpu & PPC_OPCODE_601) != 0
1441 && (op->flags & PPC_OPCODE_POWER) != 0)
1444 as_bad (_("duplicate instruction %s"),
1451 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1452 for (op = powerpc_opcodes; op < op_end; op++)
1453 hash_insert (ppc_hash, op->name, (void *) op);
1455 /* Insert the macros into a hash table. */
1456 ppc_macro_hash = hash_new ();
1458 macro_end = powerpc_macros + powerpc_num_macros;
1459 for (macro = powerpc_macros; macro < macro_end; macro++)
1461 if ((macro->flags & ppc_cpu) != 0)
1465 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1466 if (retval != (const char *) NULL)
1468 as_bad (_("duplicate macro %s"), macro->name);
1478 /* This function is called when the assembler starts up. It is called
1479 after the options have been parsed and the output file has been
1487 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1490 /* Set the ELF flags if desired. */
1491 if (ppc_flags && !msolaris)
1492 bfd_set_private_flags (stdoutput, ppc_flags);
1495 ppc_setup_opcodes ();
1497 /* Tell the main code what the endianness is if it is not overridden
1499 if (!set_target_endian)
1501 set_target_endian = 1;
1502 target_big_endian = PPC_BIG_ENDIAN;
1506 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1508 /* Create dummy symbols to serve as initial csects. This forces the
1509 text csects to precede the data csects. These symbols will not
1511 ppc_text_csects = symbol_make ("dummy\001");
1512 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1513 ppc_data_csects = symbol_make ("dummy\001");
1514 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1519 ppc_current_section = text_section;
1520 ppc_previous_section = 0;
1529 if (ppc_apuinfo_list == NULL)
1532 /* Ok, so write the section info out. We have this layout:
1536 0 8 length of "APUinfo\0"
1537 4 (n*4) number of APU's (4 bytes each)
1540 20 APU#1 first APU's info
1541 24 APU#2 second APU's info
1546 asection *seg = now_seg;
1547 subsegT subseg = now_subseg;
1548 asection *apuinfo_secp = (asection *) NULL;
1551 /* Create the .PPC.EMB.apuinfo section. */
1552 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1553 bfd_set_section_flags (stdoutput,
1555 SEC_HAS_CONTENTS | SEC_READONLY);
1558 md_number_to_chars (p, (valueT) 8, 4);
1561 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1564 md_number_to_chars (p, (valueT) 2, 4);
1567 strcpy (p, "APUinfo");
1569 for (i = 0; i < ppc_apuinfo_num; i++)
1572 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1575 frag_align (2, 0, 0);
1577 /* We probably can't restore the current segment, for there likely
1580 subseg_set (seg, subseg);
1585 /* Insert an operand value into an instruction. */
1587 static unsigned long
1588 ppc_insert_operand (unsigned long insn,
1589 const struct powerpc_operand *operand,
1595 long min, max, right;
1597 max = operand->bitm;
1601 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1603 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1604 max = (max >> 1) & -right;
1605 min = ~max & -right;
1608 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1611 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1620 /* Some people write constants with the sign extension done by
1621 hand but only up to 32 bits. This shouldn't really be valid,
1622 but, to permit this code to assemble on a 64-bit host, we
1623 sign extend the 32-bit value to 64 bits if so doing makes the
1626 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1627 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1628 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1629 val = val - 0x80000000 - 0x80000000;
1631 /* Similarly, people write expressions like ~(1<<15), and expect
1632 this to be OK for a 32-bit unsigned value. */
1634 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1635 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1636 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1637 val = val + 0x80000000 + 0x80000000;
1641 || (val & (right - 1)) != 0)
1642 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1645 if (operand->insert)
1650 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1651 if (errmsg != (const char *) NULL)
1652 as_bad_where (file, line, errmsg);
1655 insn |= ((long) val & operand->bitm) << operand->shift;
1662 /* Parse @got, etc. and return the desired relocation. */
1663 static bfd_reloc_code_real_type
1664 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1668 unsigned int length : 8;
1669 unsigned int valid32 : 1;
1670 unsigned int valid64 : 1;
1679 const struct map_bfd *ptr;
1681 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1682 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1683 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1685 static const struct map_bfd mapping[] = {
1686 MAP ("l", BFD_RELOC_LO16),
1687 MAP ("h", BFD_RELOC_HI16),
1688 MAP ("ha", BFD_RELOC_HI16_S),
1689 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1690 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1691 MAP ("got", BFD_RELOC_16_GOTOFF),
1692 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1693 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1694 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1695 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1696 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1697 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1698 MAP ("copy", BFD_RELOC_PPC_COPY),
1699 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1700 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1701 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1702 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1703 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1704 MAP ("tls", BFD_RELOC_PPC_TLS),
1705 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1706 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1707 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1708 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1709 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1710 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1711 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1712 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1713 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1714 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1715 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1716 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1717 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1718 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1719 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1720 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1721 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1722 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1723 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1724 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1725 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1726 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1727 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1728 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1729 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1730 MAP32 ("fixup", BFD_RELOC_CTOR),
1731 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1732 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1733 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1734 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1735 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1736 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1737 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1738 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1739 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1740 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1741 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1742 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1743 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1744 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1745 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1746 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1747 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1748 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1749 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1750 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1751 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1752 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1753 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1754 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1755 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1756 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1757 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1758 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1759 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1760 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1761 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1762 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1763 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1764 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1765 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1766 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1767 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1768 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1769 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1770 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1771 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1775 return BFD_RELOC_UNUSED;
1777 for (ch = *str, str2 = ident;
1778 (str2 < ident + sizeof (ident) - 1
1779 && (ISALNUM (ch) || ch == '@'));
1782 *str2++ = TOLOWER (ch);
1789 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1790 if (ch == ptr->string[0]
1791 && len == ptr->length
1792 && memcmp (ident, ptr->string, ptr->length) == 0
1793 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1795 int reloc = ptr->reloc;
1798 if (exp_p->X_add_number != 0
1799 && (reloc == (int) BFD_RELOC_16_GOTOFF
1800 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1801 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1802 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1803 as_warn (_("identifier+constant@got means identifier@got+constant"));
1805 /* Now check for identifier@suffix+constant. */
1806 if (*str == '-' || *str == '+')
1808 char *orig_line = input_line_pointer;
1809 expressionS new_exp;
1811 input_line_pointer = str;
1812 expression (&new_exp);
1813 if (new_exp.X_op == O_constant)
1815 exp_p->X_add_number += new_exp.X_add_number;
1816 str = input_line_pointer;
1819 if (&input_line_pointer != str_p)
1820 input_line_pointer = orig_line;
1824 if (reloc == (int) BFD_RELOC_PPC64_TOC
1825 && exp_p->X_op == O_symbol
1826 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1828 /* Change the symbol so that the dummy .TOC. symbol can be
1829 omitted from the object file. */
1830 exp_p->X_add_symbol = &abs_symbol;
1833 return (bfd_reloc_code_real_type) reloc;
1836 return BFD_RELOC_UNUSED;
1839 /* Like normal .long/.short/.word, except support @got, etc.
1840 Clobbers input_line_pointer, checks end-of-line. */
1842 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1845 bfd_reloc_code_real_type reloc;
1847 if (is_it_end_of_statement ())
1849 demand_empty_rest_of_line ();
1856 if (exp.X_op == O_symbol
1857 && *input_line_pointer == '@'
1858 && (reloc = ppc_elf_suffix (&input_line_pointer,
1859 &exp)) != BFD_RELOC_UNUSED)
1861 reloc_howto_type *reloc_howto;
1864 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1865 size = bfd_get_reloc_size (reloc_howto);
1869 as_bad (_("%s relocations do not fit in %d bytes\n"),
1870 reloc_howto->name, nbytes);
1877 p = frag_more (nbytes);
1879 if (target_big_endian)
1880 offset = nbytes - size;
1881 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1886 emit_expr (&exp, (unsigned int) nbytes);
1888 while (*input_line_pointer++ == ',');
1890 /* Put terminator back into stream. */
1891 input_line_pointer--;
1892 demand_empty_rest_of_line ();
1895 /* Solaris pseduo op to change to the .rodata section. */
1897 ppc_elf_rdata (int xxx)
1899 char *save_line = input_line_pointer;
1900 static char section[] = ".rodata\n";
1902 /* Just pretend this is .section .rodata */
1903 input_line_pointer = section;
1904 obj_elf_section (xxx);
1906 input_line_pointer = save_line;
1909 /* Pseudo op to make file scope bss items. */
1911 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
1924 name = input_line_pointer;
1925 c = get_symbol_end ();
1927 /* just after name is now '\0'. */
1928 p = input_line_pointer;
1931 if (*input_line_pointer != ',')
1933 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1934 ignore_rest_of_line ();
1938 input_line_pointer++; /* skip ',' */
1939 if ((size = get_absolute_expression ()) < 0)
1941 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1942 ignore_rest_of_line ();
1946 /* The third argument to .lcomm is the alignment. */
1947 if (*input_line_pointer != ',')
1951 ++input_line_pointer;
1952 align = get_absolute_expression ();
1955 as_warn (_("ignoring bad alignment"));
1961 symbolP = symbol_find_or_make (name);
1964 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1966 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1967 S_GET_NAME (symbolP));
1968 ignore_rest_of_line ();
1972 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1974 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1975 S_GET_NAME (symbolP),
1976 (long) S_GET_VALUE (symbolP),
1979 ignore_rest_of_line ();
1985 old_subsec = now_subseg;
1988 /* Convert to a power of 2 alignment. */
1989 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1992 as_bad (_("Common alignment not a power of 2"));
1993 ignore_rest_of_line ();
2000 record_alignment (bss_section, align2);
2001 subseg_set (bss_section, 0);
2003 frag_align (align2, 0, 0);
2004 if (S_GET_SEGMENT (symbolP) == bss_section)
2005 symbol_get_frag (symbolP)->fr_symbol = 0;
2006 symbol_set_frag (symbolP, frag_now);
2007 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2010 S_SET_SIZE (symbolP, size);
2011 S_SET_SEGMENT (symbolP, bss_section);
2012 subseg_set (old_sec, old_subsec);
2013 demand_empty_rest_of_line ();
2016 /* Validate any relocations emitted for -mrelocatable, possibly adding
2017 fixups for word relocations in writable segments, so we can adjust
2020 ppc_elf_validate_fix (fixS *fixp, segT seg)
2022 if (fixp->fx_done || fixp->fx_pcrel)
2031 case SHLIB_MRELOCATABLE:
2032 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2033 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2034 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2035 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2036 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2037 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2038 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2039 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2040 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2041 && (seg->flags & SEC_LOAD) != 0
2042 && strcmp (segment_name (seg), ".got2") != 0
2043 && strcmp (segment_name (seg), ".dtors") != 0
2044 && strcmp (segment_name (seg), ".ctors") != 0
2045 && strcmp (segment_name (seg), ".fixup") != 0
2046 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2047 && strcmp (segment_name (seg), ".eh_frame") != 0
2048 && strcmp (segment_name (seg), ".ex_shared") != 0)
2050 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2051 || fixp->fx_r_type != BFD_RELOC_CTOR)
2053 as_bad_where (fixp->fx_file, fixp->fx_line,
2054 _("Relocation cannot be done when using -mrelocatable"));
2061 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2062 function descriptor sym if the corresponding code sym is used. */
2065 ppc_frob_file_before_adjust (void)
2073 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2080 name = S_GET_NAME (symp);
2084 if (! S_IS_WEAK (symp)
2085 || S_IS_DEFINED (symp))
2088 len = strlen (name) + 1;
2089 dotname = xmalloc (len + 1);
2091 memcpy (dotname + 1, name, len);
2092 dotsym = symbol_find_noref (dotname, 1);
2094 if (dotsym != NULL && (symbol_used_p (dotsym)
2095 || symbol_used_in_reloc_p (dotsym)))
2096 symbol_mark_used (symp);
2100 toc = bfd_get_section_by_name (stdoutput, ".toc");
2102 && bfd_section_size (stdoutput, toc) > 0x10000)
2103 as_warn (_("TOC section size exceeds 64k"));
2105 /* Don't emit .TOC. symbol. */
2106 symp = symbol_find (".TOC.");
2108 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2110 #endif /* OBJ_ELF */
2115 * Summary of parse_toc_entry.
2117 * in: Input_line_pointer points to the '[' in one of:
2119 * [toc] [tocv] [toc32] [toc64]
2121 * Anything else is an error of one kind or another.
2124 * return value: success or failure
2125 * toc_kind: kind of toc reference
2126 * input_line_pointer:
2127 * success: first char after the ']'
2128 * failure: unchanged
2132 * [toc] - rv == success, toc_kind = default_toc
2133 * [tocv] - rv == success, toc_kind = data_in_toc
2134 * [toc32] - rv == success, toc_kind = must_be_32
2135 * [toc64] - rv == success, toc_kind = must_be_64
2139 enum toc_size_qualifier
2141 default_toc, /* The toc cell constructed should be the system default size */
2142 data_in_toc, /* This is a direct reference to a toc cell */
2143 must_be_32, /* The toc cell constructed must be 32 bits wide */
2144 must_be_64 /* The toc cell constructed must be 64 bits wide */
2148 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2153 enum toc_size_qualifier t;
2155 /* Save the input_line_pointer. */
2156 start = input_line_pointer;
2158 /* Skip over the '[' , and whitespace. */
2159 ++input_line_pointer;
2162 /* Find the spelling of the operand. */
2163 toc_spec = input_line_pointer;
2164 c = get_symbol_end ();
2166 if (strcmp (toc_spec, "toc") == 0)
2170 else if (strcmp (toc_spec, "tocv") == 0)
2174 else if (strcmp (toc_spec, "toc32") == 0)
2178 else if (strcmp (toc_spec, "toc64") == 0)
2184 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2185 *input_line_pointer = c;
2186 input_line_pointer = start;
2190 /* Now find the ']'. */
2191 *input_line_pointer = c;
2193 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2194 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2198 as_bad (_("syntax error: expected `]', found `%c'"), c);
2199 input_line_pointer = start;
2210 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2212 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2216 /* Check we don't already exist. */
2217 for (i = 0; i < ppc_apuinfo_num; i++)
2218 if (ppc_apuinfo_list[i] == APUID (apu, version))
2221 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2223 if (ppc_apuinfo_num_alloc == 0)
2225 ppc_apuinfo_num_alloc = 4;
2226 ppc_apuinfo_list = (unsigned long *)
2227 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2231 ppc_apuinfo_num_alloc += 4;
2232 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2233 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2236 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2242 /* We need to keep a list of fixups. We can't simply generate them as
2243 we go, because that would require us to first create the frag, and
2244 that would screw up references to ``.''. */
2250 bfd_reloc_code_real_type reloc;
2253 #define MAX_INSN_FIXUPS (5)
2255 /* This routine is called for each instruction to be assembled. */
2258 md_assemble (char *str)
2261 const struct powerpc_opcode *opcode;
2263 const unsigned char *opindex_ptr;
2267 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2273 bfd_reloc_code_real_type reloc;
2276 /* Get the opcode. */
2277 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2282 /* Look up the opcode in the hash table. */
2283 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2284 if (opcode == (const struct powerpc_opcode *) NULL)
2286 const struct powerpc_macro *macro;
2288 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2289 if (macro == (const struct powerpc_macro *) NULL)
2290 as_bad (_("Unrecognized opcode: `%s'"), str);
2292 ppc_macro (s, macro);
2297 insn = opcode->opcode;
2300 while (ISSPACE (*str))
2303 /* PowerPC operands are just expressions. The only real issue is
2304 that a few operand types are optional. All cases which might use
2305 an optional operand separate the operands only with commas (in some
2306 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2307 have optional operands). Most instructions with optional operands
2308 have only one. Those that have more than one optional operand can
2309 take either all their operands or none. So, before we start seriously
2310 parsing the operands, we check to see if we have optional operands,
2311 and if we do, we count the number of commas to see which operands
2312 have been omitted. */
2314 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2316 const struct powerpc_operand *operand;
2318 operand = &powerpc_operands[*opindex_ptr];
2319 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2321 unsigned int opcount;
2322 unsigned int num_operands_expected;
2325 /* There is an optional operand. Count the number of
2326 commas in the input line. */
2333 while ((s = strchr (s, ',')) != (char *) NULL)
2340 /* Compute the number of expected operands.
2341 Do not count fake operands. */
2342 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2343 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2344 ++ num_operands_expected;
2346 /* If there are fewer operands in the line then are called
2347 for by the instruction, we want to skip the optional
2349 if (opcount < num_operands_expected)
2356 /* Gather the operands. */
2360 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2362 const struct powerpc_operand *operand;
2368 if (next_opindex == 0)
2369 operand = &powerpc_operands[*opindex_ptr];
2372 operand = &powerpc_operands[next_opindex];
2377 /* If this is a fake operand, then we do not expect anything
2379 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2381 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2382 if (errmsg != (const char *) NULL)
2387 /* If this is an optional operand, and we are skipping it, just
2389 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2392 if (operand->insert)
2394 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2395 if (errmsg != (const char *) NULL)
2398 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2399 next_opindex = *opindex_ptr + 1;
2403 /* Gather the operand. */
2404 hold = input_line_pointer;
2405 input_line_pointer = str;
2408 if (*input_line_pointer == '[')
2410 /* We are expecting something like the second argument here:
2412 * lwz r4,[toc].GS.0.static_int(rtoc)
2413 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2414 * The argument following the `]' must be a symbol name, and the
2415 * register must be the toc register: 'rtoc' or '2'
2417 * The effect is to 0 as the displacement field
2418 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2419 * the appropriate variation) reloc against it based on the symbol.
2420 * The linker will build the toc, and insert the resolved toc offset.
2423 * o The size of the toc entry is currently assumed to be
2424 * 32 bits. This should not be assumed to be a hard coded
2426 * o In an effort to cope with a change from 32 to 64 bits,
2427 * there are also toc entries that are specified to be
2428 * either 32 or 64 bits:
2429 * lwz r4,[toc32].GS.0.static_int(rtoc)
2430 * lwz r4,[toc64].GS.0.static_int(rtoc)
2431 * These demand toc entries of the specified size, and the
2432 * instruction probably requires it.
2436 enum toc_size_qualifier toc_kind;
2437 bfd_reloc_code_real_type toc_reloc;
2439 /* Go parse off the [tocXX] part. */
2440 valid_toc = parse_toc_entry (&toc_kind);
2444 /* Note: message has already been issued.
2445 FIXME: what sort of recovery should we do?
2446 demand_rest_of_line (); return; ? */
2449 /* Now get the symbol following the ']'. */
2455 /* In this case, we may not have seen the symbol yet,
2456 since it is allowed to appear on a .extern or .globl
2457 or just be a label in the .data section. */
2458 toc_reloc = BFD_RELOC_PPC_TOC16;
2461 /* 1. The symbol must be defined and either in the toc
2462 section, or a global.
2463 2. The reloc generated must have the TOCDEFN flag set
2464 in upper bit mess of the reloc type.
2465 FIXME: It's a little confusing what the tocv
2466 qualifier can be used for. At the very least, I've
2467 seen three uses, only one of which I'm sure I can
2469 if (ex.X_op == O_symbol)
2471 assert (ex.X_add_symbol != NULL);
2472 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2475 as_bad (_("[tocv] symbol is not a toc symbol"));
2479 toc_reloc = BFD_RELOC_PPC_TOC16;
2482 /* FIXME: these next two specifically specify 32/64 bit
2483 toc entries. We don't support them today. Is this
2484 the right way to say that? */
2485 toc_reloc = BFD_RELOC_UNUSED;
2486 as_bad (_("Unimplemented toc32 expression modifier"));
2489 /* FIXME: see above. */
2490 toc_reloc = BFD_RELOC_UNUSED;
2491 as_bad (_("Unimplemented toc64 expression modifier"));
2495 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2501 /* We need to generate a fixup for this expression. */
2502 if (fc >= MAX_INSN_FIXUPS)
2503 as_fatal (_("too many fixups"));
2505 fixups[fc].reloc = toc_reloc;
2506 fixups[fc].exp = ex;
2507 fixups[fc].opindex = *opindex_ptr;
2510 /* Ok. We've set up the fixup for the instruction. Now make it
2511 look like the constant 0 was found here. */
2513 ex.X_op = O_constant;
2514 ex.X_add_number = 0;
2515 ex.X_add_symbol = NULL;
2516 ex.X_op_symbol = NULL;
2522 if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0)
2523 || !register_name (&ex))
2525 char save_lex = lex_type['%'];
2527 if ((operand->flags & PPC_OPERAND_CR) != 0)
2530 lex_type['%'] |= LEX_BEGIN_NAME;
2534 lex_type['%'] = save_lex;
2538 str = input_line_pointer;
2539 input_line_pointer = hold;
2541 if (ex.X_op == O_illegal)
2542 as_bad (_("illegal operand"));
2543 else if (ex.X_op == O_absent)
2544 as_bad (_("missing operand"));
2545 else if (ex.X_op == O_register)
2547 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2548 ppc_cpu, (char *) NULL, 0);
2550 else if (ex.X_op == O_constant)
2553 /* Allow @HA, @L, @H on constants. */
2554 char *orig_str = str;
2556 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2563 case BFD_RELOC_LO16:
2564 /* X_unsigned is the default, so if the user has done
2565 something which cleared it, we always produce a
2567 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2568 ex.X_add_number &= 0xffff;
2570 ex.X_add_number = SEX16 (ex.X_add_number);
2573 case BFD_RELOC_HI16:
2574 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2575 ex.X_add_number = PPC_HI (ex.X_add_number);
2577 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2580 case BFD_RELOC_HI16_S:
2581 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2582 ex.X_add_number = PPC_HA (ex.X_add_number);
2584 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2587 case BFD_RELOC_PPC64_HIGHER:
2588 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2589 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2591 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2594 case BFD_RELOC_PPC64_HIGHER_S:
2595 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2596 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2598 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2601 case BFD_RELOC_PPC64_HIGHEST:
2602 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2603 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2605 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2608 case BFD_RELOC_PPC64_HIGHEST_S:
2609 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2610 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2612 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2615 #endif /* OBJ_ELF */
2616 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2617 ppc_cpu, (char *) NULL, 0);
2620 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2622 /* Some TLS tweaks. */
2627 case BFD_RELOC_PPC_TLS:
2628 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2629 ppc_cpu, (char *) NULL, 0);
2631 /* We'll only use the 32 (or 64) bit form of these relocations
2632 in constants. Instructions get the 16 bit form. */
2633 case BFD_RELOC_PPC_DTPREL:
2634 reloc = BFD_RELOC_PPC_DTPREL16;
2636 case BFD_RELOC_PPC_TPREL:
2637 reloc = BFD_RELOC_PPC_TPREL16;
2641 /* For the absolute forms of branches, convert the PC
2642 relative form back into the absolute. */
2643 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2647 case BFD_RELOC_PPC_B26:
2648 reloc = BFD_RELOC_PPC_BA26;
2650 case BFD_RELOC_PPC_B16:
2651 reloc = BFD_RELOC_PPC_BA16;
2653 case BFD_RELOC_PPC_B16_BRTAKEN:
2654 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2656 case BFD_RELOC_PPC_B16_BRNTAKEN:
2657 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2665 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2670 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2672 case BFD_RELOC_LO16:
2673 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2675 case BFD_RELOC_16_GOTOFF:
2676 reloc = BFD_RELOC_PPC64_GOT16_DS;
2678 case BFD_RELOC_LO16_GOTOFF:
2679 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2681 case BFD_RELOC_LO16_PLTOFF:
2682 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2684 case BFD_RELOC_16_BASEREL:
2685 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2687 case BFD_RELOC_LO16_BASEREL:
2688 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2690 case BFD_RELOC_PPC_TOC16:
2691 reloc = BFD_RELOC_PPC64_TOC16_DS;
2693 case BFD_RELOC_PPC64_TOC16_LO:
2694 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2696 case BFD_RELOC_PPC64_PLTGOT16:
2697 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2699 case BFD_RELOC_PPC64_PLTGOT16_LO:
2700 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2702 case BFD_RELOC_PPC_DTPREL16:
2703 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2705 case BFD_RELOC_PPC_DTPREL16_LO:
2706 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2708 case BFD_RELOC_PPC_TPREL16:
2709 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2711 case BFD_RELOC_PPC_TPREL16_LO:
2712 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2714 case BFD_RELOC_PPC_GOT_DTPREL16:
2715 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2716 case BFD_RELOC_PPC_GOT_TPREL16:
2717 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2720 as_bad (_("unsupported relocation for DS offset field"));
2725 /* We need to generate a fixup for this expression. */
2726 if (fc >= MAX_INSN_FIXUPS)
2727 as_fatal (_("too many fixups"));
2728 fixups[fc].exp = ex;
2729 fixups[fc].opindex = 0;
2730 fixups[fc].reloc = reloc;
2733 #endif /* OBJ_ELF */
2737 /* We need to generate a fixup for this expression. */
2738 if (fc >= MAX_INSN_FIXUPS)
2739 as_fatal (_("too many fixups"));
2740 fixups[fc].exp = ex;
2741 fixups[fc].opindex = *opindex_ptr;
2742 fixups[fc].reloc = BFD_RELOC_UNUSED;
2750 /* If expecting more operands, then we want to see "),". */
2751 if (*str == endc && opindex_ptr[1] != 0)
2755 while (ISSPACE (*str));
2759 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2767 /* The call to expression should have advanced str past any
2770 && (endc != ',' || *str != '\0'))
2772 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2780 while (ISSPACE (*str))
2784 as_bad (_("junk at end of line: `%s'"), str);
2787 /* Do we need/want a APUinfo section? */
2788 if (ppc_cpu & (PPC_OPCODE_SPE
2789 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2790 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2791 | PPC_OPCODE_RFMCI))
2793 /* These are all version "1". */
2794 if (opcode->flags & PPC_OPCODE_SPE)
2795 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2796 if (opcode->flags & PPC_OPCODE_ISEL)
2797 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2798 if (opcode->flags & PPC_OPCODE_EFS)
2799 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2800 if (opcode->flags & PPC_OPCODE_BRLOCK)
2801 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2802 if (opcode->flags & PPC_OPCODE_PMR)
2803 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2804 if (opcode->flags & PPC_OPCODE_CACHELCK)
2805 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2806 if (opcode->flags & PPC_OPCODE_RFMCI)
2807 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2811 /* Write out the instruction. */
2813 addr_mod = frag_now_fix () & 3;
2814 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2815 as_bad (_("instruction address is not a multiple of 4"));
2816 frag_now->insn_addr = addr_mod;
2817 frag_now->has_code = 1;
2818 md_number_to_chars (f, insn, 4);
2821 dwarf2_emit_insn (4);
2824 /* Create any fixups. At this point we do not use a
2825 bfd_reloc_code_real_type, but instead just use the
2826 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2827 handle fixups for any operand type, although that is admittedly
2828 not a very exciting feature. We pick a BFD reloc type in
2830 for (i = 0; i < fc; i++)
2832 const struct powerpc_operand *operand;
2834 operand = &powerpc_operands[fixups[i].opindex];
2835 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2837 reloc_howto_type *reloc_howto;
2842 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2846 size = bfd_get_reloc_size (reloc_howto);
2847 offset = target_big_endian ? (4 - size) : 0;
2849 if (size < 1 || size > 4)
2852 fixP = fix_new_exp (frag_now,
2853 f - frag_now->fr_literal + offset,
2856 reloc_howto->pc_relative,
2859 /* Turn off complaints that the addend is too large for things like
2861 switch (fixups[i].reloc)
2863 case BFD_RELOC_16_GOTOFF:
2864 case BFD_RELOC_PPC_TOC16:
2865 case BFD_RELOC_LO16:
2866 case BFD_RELOC_HI16:
2867 case BFD_RELOC_HI16_S:
2869 case BFD_RELOC_PPC64_HIGHER:
2870 case BFD_RELOC_PPC64_HIGHER_S:
2871 case BFD_RELOC_PPC64_HIGHEST:
2872 case BFD_RELOC_PPC64_HIGHEST_S:
2874 fixP->fx_no_overflow = 1;
2881 fix_new_exp (frag_now,
2882 f - frag_now->fr_literal,
2885 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2886 ((bfd_reloc_code_real_type)
2887 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2891 /* Handle a macro. Gather all the operands, transform them as
2892 described by the macro, and call md_assemble recursively. All the
2893 operands are separated by commas; we don't accept parentheses
2894 around operands here. */
2897 ppc_macro (char *str, const struct powerpc_macro *macro)
2908 /* Gather the users operands into the operands array. */
2913 if (count >= sizeof operands / sizeof operands[0])
2915 operands[count++] = s;
2916 s = strchr (s, ',');
2917 if (s == (char *) NULL)
2922 if (count != macro->operands)
2924 as_bad (_("wrong number of operands"));
2928 /* Work out how large the string must be (the size is unbounded
2929 because it includes user input). */
2931 format = macro->format;
2932 while (*format != '\0')
2941 arg = strtol (format + 1, &send, 10);
2942 know (send != format && arg < count);
2943 len += strlen (operands[arg]);
2948 /* Put the string together. */
2949 complete = s = (char *) alloca (len + 1);
2950 format = macro->format;
2951 while (*format != '\0')
2957 arg = strtol (format + 1, &send, 10);
2958 strcpy (s, operands[arg]);
2965 /* Assemble the constructed instruction. */
2966 md_assemble (complete);
2970 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2973 ppc_section_letter (int letter, char **ptr_msg)
2978 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2983 ppc_section_word (char *str, size_t len)
2985 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2992 ppc_section_type (char *str, size_t len)
2994 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3001 ppc_section_flags (int flags, int attr, int type)
3003 if (type == SHT_ORDERED)
3004 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3006 if (attr & SHF_EXCLUDE)
3007 flags |= SEC_EXCLUDE;
3011 #endif /* OBJ_ELF */
3014 /* Pseudo-op handling. */
3016 /* The .byte pseudo-op. This is similar to the normal .byte
3017 pseudo-op, but it can also take a single ASCII string. */
3020 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3022 if (*input_line_pointer != '\"')
3028 /* Gather characters. A real double quote is doubled. Unusual
3029 characters are not permitted. */
3030 ++input_line_pointer;
3035 c = *input_line_pointer++;
3039 if (*input_line_pointer != '\"')
3041 ++input_line_pointer;
3044 FRAG_APPEND_1_CHAR (c);
3047 demand_empty_rest_of_line ();
3052 /* XCOFF specific pseudo-op handling. */
3054 /* This is set if we are creating a .stabx symbol, since we don't want
3055 to handle symbol suffixes for such symbols. */
3056 static bfd_boolean ppc_stab_symbol;
3058 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3059 symbols in the .bss segment as though they were local common
3060 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3061 aligns .comm and .lcomm to 4 bytes. */
3064 ppc_comm (int lcomm)
3066 asection *current_seg = now_seg;
3067 subsegT current_subseg = now_subseg;
3073 symbolS *lcomm_sym = NULL;
3077 name = input_line_pointer;
3078 endc = get_symbol_end ();
3079 end_name = input_line_pointer;
3082 if (*input_line_pointer != ',')
3084 as_bad (_("missing size"));
3085 ignore_rest_of_line ();
3088 ++input_line_pointer;
3090 size = get_absolute_expression ();
3093 as_bad (_("negative size"));
3094 ignore_rest_of_line ();
3100 /* The third argument to .comm is the alignment. */
3101 if (*input_line_pointer != ',')
3105 ++input_line_pointer;
3106 align = get_absolute_expression ();
3109 as_warn (_("ignoring bad alignment"));
3124 /* The third argument to .lcomm appears to be the real local
3125 common symbol to create. References to the symbol named in
3126 the first argument are turned into references to the third
3128 if (*input_line_pointer != ',')
3130 as_bad (_("missing real symbol name"));
3131 ignore_rest_of_line ();
3134 ++input_line_pointer;
3136 lcomm_name = input_line_pointer;
3137 lcomm_endc = get_symbol_end ();
3139 lcomm_sym = symbol_find_or_make (lcomm_name);
3141 *input_line_pointer = lcomm_endc;
3145 sym = symbol_find_or_make (name);
3148 if (S_IS_DEFINED (sym)
3149 || S_GET_VALUE (sym) != 0)
3151 as_bad (_("attempt to redefine symbol"));
3152 ignore_rest_of_line ();
3156 record_alignment (bss_section, align);
3159 || ! S_IS_DEFINED (lcomm_sym))
3168 S_SET_EXTERNAL (sym);
3172 symbol_get_tc (lcomm_sym)->output = 1;
3173 def_sym = lcomm_sym;
3177 subseg_set (bss_section, 1);
3178 frag_align (align, 0, 0);
3180 symbol_set_frag (def_sym, frag_now);
3181 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3182 def_size, (char *) NULL);
3184 S_SET_SEGMENT (def_sym, bss_section);
3185 symbol_get_tc (def_sym)->align = align;
3189 /* Align the size of lcomm_sym. */
3190 symbol_get_frag (lcomm_sym)->fr_offset =
3191 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3192 &~ ((1 << align) - 1));
3193 if (align > symbol_get_tc (lcomm_sym)->align)
3194 symbol_get_tc (lcomm_sym)->align = align;
3199 /* Make sym an offset from lcomm_sym. */
3200 S_SET_SEGMENT (sym, bss_section);
3201 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3202 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3203 symbol_get_frag (lcomm_sym)->fr_offset += size;
3206 subseg_set (current_seg, current_subseg);
3208 demand_empty_rest_of_line ();
3211 /* The .csect pseudo-op. This switches us into a different
3212 subsegment. The first argument is a symbol whose value is the
3213 start of the .csect. In COFF, csect symbols get special aux
3214 entries defined by the x_csect field of union internal_auxent. The
3215 optional second argument is the alignment (the default is 2). */
3218 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3225 name = input_line_pointer;
3226 endc = get_symbol_end ();
3228 sym = symbol_find_or_make (name);
3230 *input_line_pointer = endc;
3232 if (S_GET_NAME (sym)[0] == '\0')
3234 /* An unnamed csect is assumed to be [PR]. */
3235 symbol_get_tc (sym)->class = XMC_PR;
3239 if (*input_line_pointer == ',')
3241 ++input_line_pointer;
3242 align = get_absolute_expression ();
3245 ppc_change_csect (sym, align);
3247 demand_empty_rest_of_line ();
3250 /* Change to a different csect. */
3253 ppc_change_csect (symbolS *sym, offsetT align)
3255 if (S_IS_DEFINED (sym))
3256 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3266 /* This is a new csect. We need to look at the symbol class to
3267 figure out whether it should go in the text section or the
3271 switch (symbol_get_tc (sym)->class)
3281 S_SET_SEGMENT (sym, text_section);
3282 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3283 ++ppc_text_subsegment;
3284 list_ptr = &ppc_text_csects;
3294 if (ppc_toc_csect != NULL
3295 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3296 == ppc_data_subsegment))
3298 S_SET_SEGMENT (sym, data_section);
3299 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3300 ++ppc_data_subsegment;
3301 list_ptr = &ppc_data_csects;
3307 /* We set the obstack chunk size to a small value before
3308 changing subsegments, so that we don't use a lot of memory
3309 space for what may be a small section. */
3310 hold_chunksize = chunksize;
3313 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3314 symbol_get_tc (sym)->subseg);
3316 chunksize = hold_chunksize;
3319 ppc_after_toc_frag = frag_now;
3321 record_alignment (sec, align);
3323 frag_align_code (align, 0);
3325 frag_align (align, 0, 0);
3327 symbol_set_frag (sym, frag_now);
3328 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3330 symbol_get_tc (sym)->align = align;
3331 symbol_get_tc (sym)->output = 1;
3332 symbol_get_tc (sym)->within = sym;
3334 for (list = *list_ptr;
3335 symbol_get_tc (list)->next != (symbolS *) NULL;
3336 list = symbol_get_tc (list)->next)
3338 symbol_get_tc (list)->next = sym;
3340 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3341 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3345 ppc_current_csect = sym;
3348 /* This function handles the .text and .data pseudo-ops. These
3349 pseudo-ops aren't really used by XCOFF; we implement them for the
3350 convenience of people who aren't used to XCOFF. */
3353 ppc_section (int type)
3360 else if (type == 'd')
3365 sym = symbol_find_or_make (name);
3367 ppc_change_csect (sym, 2);
3369 demand_empty_rest_of_line ();
3372 /* This function handles the .section pseudo-op. This is mostly to
3373 give an error, since XCOFF only supports .text, .data and .bss, but
3374 we do permit the user to name the text or data section. */
3377 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3380 const char *real_name;
3384 user_name = input_line_pointer;
3385 c = get_symbol_end ();
3387 if (strcmp (user_name, ".text") == 0)
3388 real_name = ".text[PR]";
3389 else if (strcmp (user_name, ".data") == 0)
3390 real_name = ".data[RW]";
3393 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3394 *input_line_pointer = c;
3395 ignore_rest_of_line ();
3399 *input_line_pointer = c;
3401 sym = symbol_find_or_make (real_name);
3403 ppc_change_csect (sym, 2);
3405 demand_empty_rest_of_line ();
3408 /* The .extern pseudo-op. We create an undefined symbol. */
3411 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3416 name = input_line_pointer;
3417 endc = get_symbol_end ();
3419 (void) symbol_find_or_make (name);
3421 *input_line_pointer = endc;
3423 demand_empty_rest_of_line ();
3426 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3429 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3435 name = input_line_pointer;
3436 endc = get_symbol_end ();
3438 sym = symbol_find_or_make (name);
3440 *input_line_pointer = endc;
3442 symbol_get_tc (sym)->output = 1;
3444 demand_empty_rest_of_line ();
3447 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3448 although I don't know why it bothers. */
3451 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3458 name = input_line_pointer;
3459 endc = get_symbol_end ();
3461 sym = symbol_find_or_make (name);
3463 *input_line_pointer = endc;
3465 if (*input_line_pointer != ',')
3467 as_bad (_("missing rename string"));
3468 ignore_rest_of_line ();
3471 ++input_line_pointer;
3473 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3475 demand_empty_rest_of_line ();
3478 /* The .stabx pseudo-op. This is similar to a normal .stabs
3479 pseudo-op, but slightly different. A sample is
3480 .stabx "main:F-1",.main,142,0
3481 The first argument is the symbol name to create. The second is the
3482 value, and the third is the storage class. The fourth seems to be
3483 always zero, and I am assuming it is the type. */
3486 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3493 name = demand_copy_C_string (&len);
3495 if (*input_line_pointer != ',')
3497 as_bad (_("missing value"));
3500 ++input_line_pointer;
3502 ppc_stab_symbol = TRUE;
3503 sym = symbol_make (name);
3504 ppc_stab_symbol = FALSE;
3506 symbol_get_tc (sym)->real_name = name;
3508 (void) expression (&exp);
3515 as_bad (_("illegal .stabx expression; zero assumed"));
3516 exp.X_add_number = 0;
3519 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3520 symbol_set_frag (sym, &zero_address_frag);
3524 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3525 symbol_set_value_expression (sym, &exp);
3529 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3530 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3535 /* The value is some complex expression. This will probably
3536 fail at some later point, but this is probably the right
3537 thing to do here. */
3538 symbol_set_value_expression (sym, &exp);
3542 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3543 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3545 if (*input_line_pointer != ',')
3547 as_bad (_("missing class"));
3550 ++input_line_pointer;
3552 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3554 if (*input_line_pointer != ',')
3556 as_bad (_("missing type"));
3559 ++input_line_pointer;
3561 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3563 symbol_get_tc (sym)->output = 1;
3565 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3567 symbol_get_tc (sym)->within = ppc_current_block;
3572 .stabx "z",arrays_,133,0
3575 .comm arrays_,13768,3
3577 resolve_symbol_value will copy the exp's "within" into sym's when the
3578 offset is 0. Since this seems to be corner case problem,
3579 only do the correction for storage class C_STSYM. A better solution
3580 would be to have the tc field updated in ppc_symbol_new_hook. */
3582 if (exp.X_op == O_symbol)
3584 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3588 if (exp.X_op != O_symbol
3589 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3590 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3591 ppc_frob_label (sym);
3594 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3595 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3596 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3597 symbol_get_tc (ppc_current_csect)->within = sym;
3600 demand_empty_rest_of_line ();
3603 /* The .function pseudo-op. This takes several arguments. The first
3604 argument seems to be the external name of the symbol. The second
3605 argument seems to be the label for the start of the function. gcc
3606 uses the same name for both. I have no idea what the third and
3607 fourth arguments are meant to be. The optional fifth argument is
3608 an expression for the size of the function. In COFF this symbol
3609 gets an aux entry like that used for a csect. */
3612 ppc_function (int ignore ATTRIBUTE_UNUSED)
3620 name = input_line_pointer;
3621 endc = get_symbol_end ();
3623 /* Ignore any [PR] suffix. */
3624 name = ppc_canonicalize_symbol_name (name);
3625 s = strchr (name, '[');
3626 if (s != (char *) NULL
3627 && strcmp (s + 1, "PR]") == 0)
3630 ext_sym = symbol_find_or_make (name);
3632 *input_line_pointer = endc;
3634 if (*input_line_pointer != ',')
3636 as_bad (_("missing symbol name"));
3637 ignore_rest_of_line ();
3640 ++input_line_pointer;
3642 name = input_line_pointer;
3643 endc = get_symbol_end ();
3645 lab_sym = symbol_find_or_make (name);
3647 *input_line_pointer = endc;
3649 if (ext_sym != lab_sym)
3653 exp.X_op = O_symbol;
3654 exp.X_add_symbol = lab_sym;
3655 exp.X_op_symbol = NULL;
3656 exp.X_add_number = 0;
3658 symbol_set_value_expression (ext_sym, &exp);
3661 if (symbol_get_tc (ext_sym)->class == -1)
3662 symbol_get_tc (ext_sym)->class = XMC_PR;
3663 symbol_get_tc (ext_sym)->output = 1;
3665 if (*input_line_pointer == ',')
3669 /* Ignore the third argument. */
3670 ++input_line_pointer;
3671 expression (&ignore);
3672 if (*input_line_pointer == ',')
3674 /* Ignore the fourth argument. */
3675 ++input_line_pointer;
3676 expression (&ignore);
3677 if (*input_line_pointer == ',')
3679 /* The fifth argument is the function size. */
3680 ++input_line_pointer;
3681 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3684 &zero_address_frag);
3685 pseudo_set (symbol_get_tc (ext_sym)->size);
3690 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3691 SF_SET_FUNCTION (ext_sym);
3692 SF_SET_PROCESS (ext_sym);
3693 coff_add_linesym (ext_sym);
3695 demand_empty_rest_of_line ();
3698 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3699 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3700 with the correct line number */
3702 static symbolS *saved_bi_sym = 0;
3705 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3709 sym = symbol_make (".bf");
3710 S_SET_SEGMENT (sym, text_section);
3711 symbol_set_frag (sym, frag_now);
3712 S_SET_VALUE (sym, frag_now_fix ());
3713 S_SET_STORAGE_CLASS (sym, C_FCN);
3715 coff_line_base = get_absolute_expression ();
3717 S_SET_NUMBER_AUXILIARY (sym, 1);
3718 SA_SET_SYM_LNNO (sym, coff_line_base);
3720 /* Line number for bi. */
3723 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3728 symbol_get_tc (sym)->output = 1;
3730 ppc_frob_label (sym);
3732 demand_empty_rest_of_line ();
3735 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3736 ".ef", except that the line number is absolute, not relative to the
3737 most recent ".bf" symbol. */
3740 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3744 sym = symbol_make (".ef");
3745 S_SET_SEGMENT (sym, text_section);
3746 symbol_set_frag (sym, frag_now);
3747 S_SET_VALUE (sym, frag_now_fix ());
3748 S_SET_STORAGE_CLASS (sym, C_FCN);
3749 S_SET_NUMBER_AUXILIARY (sym, 1);
3750 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3751 symbol_get_tc (sym)->output = 1;
3753 ppc_frob_label (sym);
3755 demand_empty_rest_of_line ();
3758 /* The .bi and .ei pseudo-ops. These take a string argument and
3759 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3760 the symbol list. The value of .bi will be know when the next .bf
3766 static symbolS *last_biei;
3773 name = demand_copy_C_string (&len);
3775 /* The value of these symbols is actually file offset. Here we set
3776 the value to the index into the line number entries. In
3777 ppc_frob_symbols we set the fix_line field, which will cause BFD
3778 to do the right thing. */
3780 sym = symbol_make (name);
3781 /* obj-coff.c currently only handles line numbers correctly in the
3783 S_SET_SEGMENT (sym, text_section);
3784 S_SET_VALUE (sym, coff_n_line_nos);
3785 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3787 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3788 symbol_get_tc (sym)->output = 1;
3796 for (look = last_biei ? last_biei : symbol_rootP;
3797 (look != (symbolS *) NULL
3798 && (S_GET_STORAGE_CLASS (look) == C_FILE
3799 || S_GET_STORAGE_CLASS (look) == C_BINCL
3800 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3801 look = symbol_next (look))
3803 if (look != (symbolS *) NULL)
3805 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3806 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3810 demand_empty_rest_of_line ();
3813 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3814 There is one argument, which is a csect symbol. The value of the
3815 .bs symbol is the index of this csect symbol. */
3818 ppc_bs (int ignore ATTRIBUTE_UNUSED)
3825 if (ppc_current_block != NULL)
3826 as_bad (_("nested .bs blocks"));
3828 name = input_line_pointer;
3829 endc = get_symbol_end ();
3831 csect = symbol_find_or_make (name);
3833 *input_line_pointer = endc;
3835 sym = symbol_make (".bs");
3836 S_SET_SEGMENT (sym, now_seg);
3837 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3838 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3839 symbol_get_tc (sym)->output = 1;
3841 symbol_get_tc (sym)->within = csect;
3843 ppc_frob_label (sym);
3845 ppc_current_block = sym;
3847 demand_empty_rest_of_line ();
3850 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3853 ppc_es (int ignore ATTRIBUTE_UNUSED)
3857 if (ppc_current_block == NULL)
3858 as_bad (_(".es without preceding .bs"));
3860 sym = symbol_make (".es");
3861 S_SET_SEGMENT (sym, now_seg);
3862 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3863 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3864 symbol_get_tc (sym)->output = 1;
3866 ppc_frob_label (sym);
3868 ppc_current_block = NULL;
3870 demand_empty_rest_of_line ();
3873 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3877 ppc_bb (int ignore ATTRIBUTE_UNUSED)
3881 sym = symbol_make (".bb");
3882 S_SET_SEGMENT (sym, text_section);
3883 symbol_set_frag (sym, frag_now);
3884 S_SET_VALUE (sym, frag_now_fix ());
3885 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3887 S_SET_NUMBER_AUXILIARY (sym, 1);
3888 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3890 symbol_get_tc (sym)->output = 1;
3892 SF_SET_PROCESS (sym);
3894 ppc_frob_label (sym);
3896 demand_empty_rest_of_line ();
3899 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3903 ppc_eb (int ignore ATTRIBUTE_UNUSED)
3907 sym = symbol_make (".eb");
3908 S_SET_SEGMENT (sym, text_section);
3909 symbol_set_frag (sym, frag_now);
3910 S_SET_VALUE (sym, frag_now_fix ());
3911 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3912 S_SET_NUMBER_AUXILIARY (sym, 1);
3913 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3914 symbol_get_tc (sym)->output = 1;
3916 SF_SET_PROCESS (sym);
3918 ppc_frob_label (sym);
3920 demand_empty_rest_of_line ();
3923 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3927 ppc_bc (int ignore ATTRIBUTE_UNUSED)
3933 name = demand_copy_C_string (&len);
3934 sym = symbol_make (name);
3935 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3936 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3937 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3938 S_SET_VALUE (sym, 0);
3939 symbol_get_tc (sym)->output = 1;
3941 ppc_frob_label (sym);
3943 demand_empty_rest_of_line ();
3946 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3949 ppc_ec (int ignore ATTRIBUTE_UNUSED)
3953 sym = symbol_make (".ec");
3954 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3955 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3956 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3957 S_SET_VALUE (sym, 0);
3958 symbol_get_tc (sym)->output = 1;
3960 ppc_frob_label (sym);
3962 demand_empty_rest_of_line ();
3965 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3968 ppc_toc (int ignore ATTRIBUTE_UNUSED)
3970 if (ppc_toc_csect != (symbolS *) NULL)
3971 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3978 subseg = ppc_data_subsegment;
3979 ++ppc_data_subsegment;
3981 subseg_new (segment_name (data_section), subseg);
3982 ppc_toc_frag = frag_now;
3984 sym = symbol_find_or_make ("TOC[TC0]");
3985 symbol_set_frag (sym, frag_now);
3986 S_SET_SEGMENT (sym, data_section);
3987 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3988 symbol_get_tc (sym)->subseg = subseg;
3989 symbol_get_tc (sym)->output = 1;
3990 symbol_get_tc (sym)->within = sym;
3992 ppc_toc_csect = sym;
3994 for (list = ppc_data_csects;
3995 symbol_get_tc (list)->next != (symbolS *) NULL;
3996 list = symbol_get_tc (list)->next)
3998 symbol_get_tc (list)->next = sym;
4000 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4001 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4005 ppc_current_csect = ppc_toc_csect;
4007 demand_empty_rest_of_line ();
4010 /* The AIX assembler automatically aligns the operands of a .long or
4011 .short pseudo-op, and we want to be compatible. */
4014 ppc_xcoff_cons (int log_size)
4016 frag_align (log_size, 0, 0);
4017 record_alignment (now_seg, log_size);
4018 cons (1 << log_size);
4022 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4027 (void) expression (&exp);
4029 if (exp.X_op != O_constant)
4031 as_bad (_("non-constant byte count"));
4035 byte_count = exp.X_add_number;
4037 if (*input_line_pointer != ',')
4039 as_bad (_("missing value"));
4043 ++input_line_pointer;
4047 #endif /* OBJ_XCOFF */
4048 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4050 /* The .tc pseudo-op. This is used when generating either XCOFF or
4051 ELF. This takes two or more arguments.
4053 When generating XCOFF output, the first argument is the name to
4054 give to this location in the toc; this will be a symbol with class
4055 TC. The rest of the arguments are N-byte values to actually put at
4056 this location in the TOC; often there is just one more argument, a
4057 relocatable symbol reference. The size of the value to store
4058 depends on target word size. A 32-bit target uses 4-byte values, a
4059 64-bit target uses 8-byte values.
4061 When not generating XCOFF output, the arguments are the same, but
4062 the first argument is simply ignored. */
4065 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4069 /* Define the TOC symbol name. */
4075 if (ppc_toc_csect == (symbolS *) NULL
4076 || ppc_toc_csect != ppc_current_csect)
4078 as_bad (_(".tc not in .toc section"));
4079 ignore_rest_of_line ();
4083 name = input_line_pointer;
4084 endc = get_symbol_end ();
4086 sym = symbol_find_or_make (name);
4088 *input_line_pointer = endc;
4090 if (S_IS_DEFINED (sym))
4094 label = symbol_get_tc (ppc_current_csect)->within;
4095 if (symbol_get_tc (label)->class != XMC_TC0)
4097 as_bad (_(".tc with no label"));
4098 ignore_rest_of_line ();
4102 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4103 symbol_set_frag (label, symbol_get_frag (sym));
4104 S_SET_VALUE (label, S_GET_VALUE (sym));
4106 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4107 ++input_line_pointer;
4112 S_SET_SEGMENT (sym, now_seg);
4113 symbol_set_frag (sym, frag_now);
4114 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4115 symbol_get_tc (sym)->class = XMC_TC;
4116 symbol_get_tc (sym)->output = 1;
4118 ppc_frob_label (sym);
4121 #endif /* OBJ_XCOFF */
4125 /* Skip the TOC symbol name. */
4126 while (is_part_of_name (*input_line_pointer)
4127 || *input_line_pointer == ' '
4128 || *input_line_pointer == '['
4129 || *input_line_pointer == ']'
4130 || *input_line_pointer == '{'
4131 || *input_line_pointer == '}')
4132 ++input_line_pointer;
4134 /* Align to a four/eight byte boundary. */
4135 align = ppc_obj64 ? 3 : 2;
4136 frag_align (align, 0, 0);
4137 record_alignment (now_seg, align);
4138 #endif /* OBJ_ELF */
4140 if (*input_line_pointer != ',')
4141 demand_empty_rest_of_line ();
4144 ++input_line_pointer;
4145 cons (ppc_obj64 ? 8 : 4);
4149 /* Pseudo-op .machine. */
4152 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4155 #define MAX_HISTORY 100
4156 static ppc_cpu_t *cpu_history;
4157 static int curr_hist;
4161 if (*input_line_pointer == '"')
4164 cpu_string = demand_copy_C_string (&len);
4169 cpu_string = input_line_pointer;
4170 c = get_symbol_end ();
4171 cpu_string = xstrdup (cpu_string);
4172 *input_line_pointer = c;
4175 if (cpu_string != NULL)
4177 ppc_cpu_t old_cpu = ppc_cpu;
4180 for (p = cpu_string; *p != 0; p++)
4183 if (strcmp (cpu_string, "push") == 0)
4185 if (cpu_history == NULL)
4186 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4188 if (curr_hist >= MAX_HISTORY)
4189 as_bad (_(".machine stack overflow"));
4191 cpu_history[curr_hist++] = ppc_cpu;
4193 else if (strcmp (cpu_string, "pop") == 0)
4196 as_bad (_(".machine stack underflow"));
4198 ppc_cpu = cpu_history[--curr_hist];
4200 else if (parse_cpu (cpu_string))
4203 as_bad (_("invalid machine `%s'"), cpu_string);
4205 if (ppc_cpu != old_cpu)
4206 ppc_setup_opcodes ();
4209 demand_empty_rest_of_line ();
4212 /* See whether a symbol is in the TOC section. */
4215 ppc_is_toc_sym (symbolS *sym)
4218 return symbol_get_tc (sym)->class == XMC_TC;
4221 const char *sname = segment_name (S_GET_SEGMENT (sym));
4223 return strcmp (sname, ".toc") == 0;
4225 return strcmp (sname, ".got") == 0;
4228 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4232 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4234 /* Set the current section. */
4236 ppc_set_current_section (segT new)
4238 ppc_previous_section = ppc_current_section;
4239 ppc_current_section = new;
4242 /* pseudo-op: .previous
4243 behaviour: toggles the current section with the previous section.
4245 warnings: "No previous section" */
4248 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4252 if (ppc_previous_section == NULL)
4254 as_warn (_("No previous section to return to. Directive ignored."));
4258 subseg_set (ppc_previous_section, 0);
4260 ppc_set_current_section (ppc_previous_section);
4263 /* pseudo-op: .pdata
4264 behaviour: predefined read only data section
4268 initial: .section .pdata "adr3"
4269 a - don't know -- maybe a misprint
4270 d - initialized data
4272 3 - double word aligned (that would be 4 byte boundary)
4275 Tag index tables (also known as the function table) for exception
4276 handling, debugging, etc. */
4279 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4281 if (pdata_section == 0)
4283 pdata_section = subseg_new (".pdata", 0);
4285 bfd_set_section_flags (stdoutput, pdata_section,
4286 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4287 | SEC_READONLY | SEC_DATA ));
4289 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4293 pdata_section = subseg_new (".pdata", 0);
4295 ppc_set_current_section (pdata_section);
4298 /* pseudo-op: .ydata
4299 behaviour: predefined read only data section
4303 initial: .section .ydata "drw3"
4304 a - don't know -- maybe a misprint
4305 d - initialized data
4307 3 - double word aligned (that would be 4 byte boundary)
4309 Tag tables (also known as the scope table) for exception handling,
4313 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4315 if (ydata_section == 0)
4317 ydata_section = subseg_new (".ydata", 0);
4318 bfd_set_section_flags (stdoutput, ydata_section,
4319 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4320 | SEC_READONLY | SEC_DATA ));
4322 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4326 ydata_section = subseg_new (".ydata", 0);
4328 ppc_set_current_section (ydata_section);
4331 /* pseudo-op: .reldata
4332 behaviour: predefined read write data section
4333 double word aligned (4-byte)
4334 FIXME: relocation is applied to it
4335 FIXME: what's the difference between this and .data?
4338 initial: .section .reldata "drw3"
4339 d - initialized data
4342 3 - double word aligned (that would be 8 byte boundary)
4345 Like .data, but intended to hold data subject to relocation, such as
4346 function descriptors, etc. */
4349 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4351 if (reldata_section == 0)
4353 reldata_section = subseg_new (".reldata", 0);
4355 bfd_set_section_flags (stdoutput, reldata_section,
4356 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4359 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4363 reldata_section = subseg_new (".reldata", 0);
4365 ppc_set_current_section (reldata_section);
4368 /* pseudo-op: .rdata
4369 behaviour: predefined read only data section
4373 initial: .section .rdata "dr3"
4374 d - initialized data
4376 3 - double word aligned (that would be 4 byte boundary) */
4379 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4381 if (rdata_section == 0)
4383 rdata_section = subseg_new (".rdata", 0);
4384 bfd_set_section_flags (stdoutput, rdata_section,
4385 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4386 | SEC_READONLY | SEC_DATA ));
4388 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4392 rdata_section = subseg_new (".rdata", 0);
4394 ppc_set_current_section (rdata_section);
4397 /* pseudo-op: .ualong
4398 behaviour: much like .int, with the exception that no alignment is
4400 FIXME: test the alignment statement
4405 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4411 /* pseudo-op: .znop <symbol name>
4412 behaviour: Issue a nop instruction
4413 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4414 the supplied symbol name.
4416 warnings: Missing symbol name */
4419 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4422 const struct powerpc_opcode *opcode;
4433 /* Strip out the symbol name. */
4434 symbol_name = input_line_pointer;
4435 c = get_symbol_end ();
4437 name = xmalloc (input_line_pointer - symbol_name + 1);
4438 strcpy (name, symbol_name);
4440 sym = symbol_find_or_make (name);
4442 *input_line_pointer = c;
4446 /* Look up the opcode in the hash table. */
4447 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4449 /* Stick in the nop. */
4450 insn = opcode->opcode;
4452 /* Write out the instruction. */
4454 md_number_to_chars (f, insn, 4);
4456 f - frag_now->fr_literal,
4461 BFD_RELOC_16_GOT_PCREL);
4471 ppc_pe_comm (int lcomm)
4480 name = input_line_pointer;
4481 c = get_symbol_end ();
4483 /* just after name is now '\0'. */
4484 p = input_line_pointer;
4487 if (*input_line_pointer != ',')
4489 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4490 ignore_rest_of_line ();
4494 input_line_pointer++; /* skip ',' */
4495 if ((temp = get_absolute_expression ()) < 0)
4497 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4498 ignore_rest_of_line ();
4504 /* The third argument to .comm is the alignment. */
4505 if (*input_line_pointer != ',')
4509 ++input_line_pointer;
4510 align = get_absolute_expression ();
4513 as_warn (_("ignoring bad alignment"));
4520 symbolP = symbol_find_or_make (name);
4523 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4525 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4526 S_GET_NAME (symbolP));
4527 ignore_rest_of_line ();
4531 if (S_GET_VALUE (symbolP))
4533 if (S_GET_VALUE (symbolP) != (valueT) temp)
4534 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4535 S_GET_NAME (symbolP),
4536 (long) S_GET_VALUE (symbolP),
4541 S_SET_VALUE (symbolP, (valueT) temp);
4542 S_SET_EXTERNAL (symbolP);
4543 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4546 demand_empty_rest_of_line ();
4550 * implement the .section pseudo op:
4551 * .section name {, "flags"}
4553 * | +--- optional flags: 'b' for bss
4555 * +-- section name 'l' for lib
4559 * 'd' (apparently m88k for data)
4561 * But if the argument is not a quoted string, treat it as a
4562 * subsegment number.
4564 * FIXME: this is a copy of the section processing from obj-coff.c, with
4565 * additions/changes for the moto-pas assembler support. There are three
4568 * FIXME: I just noticed this. This doesn't work at all really. It it
4569 * setting bits that bfd probably neither understands or uses. The
4570 * correct approach (?) will have to incorporate extra fields attached
4571 * to the section to hold the system specific stuff. (krk)
4574 * 'a' - unknown - referred to in documentation, but no definition supplied
4575 * 'c' - section has code
4576 * 'd' - section has initialized data
4577 * 'u' - section has uninitialized data
4578 * 'i' - section contains directives (info)
4579 * 'n' - section can be discarded
4580 * 'R' - remove section at link time
4582 * Section Protection:
4583 * 'r' - section is readable
4584 * 'w' - section is writeable
4585 * 'x' - section is executable
4586 * 's' - section is sharable
4588 * Section Alignment:
4589 * '0' - align to byte boundary
4590 * '1' - align to halfword undary
4591 * '2' - align to word boundary
4592 * '3' - align to doubleword boundary
4593 * '4' - align to quadword boundary
4594 * '5' - align to 32 byte boundary
4595 * '6' - align to 64 byte boundary
4600 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4602 /* Strip out the section name. */
4611 section_name = input_line_pointer;
4612 c = get_symbol_end ();
4614 name = xmalloc (input_line_pointer - section_name + 1);
4615 strcpy (name, section_name);
4617 *input_line_pointer = c;
4622 flags = SEC_NO_FLAGS;
4624 if (strcmp (name, ".idata$2") == 0)
4628 else if (strcmp (name, ".idata$3") == 0)
4632 else if (strcmp (name, ".idata$4") == 0)
4636 else if (strcmp (name, ".idata$5") == 0)
4640 else if (strcmp (name, ".idata$6") == 0)
4645 /* Default alignment to 16 byte boundary. */
4648 if (*input_line_pointer == ',')
4650 ++input_line_pointer;
4652 if (*input_line_pointer != '"')
4653 exp = get_absolute_expression ();
4656 ++input_line_pointer;
4657 while (*input_line_pointer != '"'
4658 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4660 switch (*input_line_pointer)
4662 /* Section Contents */
4663 case 'a': /* unknown */
4664 as_bad (_("Unsupported section attribute -- 'a'"));
4666 case 'c': /* code section */
4669 case 'd': /* section has initialized data */
4672 case 'u': /* section has uninitialized data */
4673 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4677 case 'i': /* section contains directives (info) */
4678 /* FIXME: This is IMAGE_SCN_LNK_INFO
4680 flags |= SEC_HAS_CONTENTS;
4682 case 'n': /* section can be discarded */
4685 case 'R': /* Remove section at link time */
4686 flags |= SEC_NEVER_LOAD;
4688 #if IFLICT_BRAIN_DAMAGE
4689 /* Section Protection */
4690 case 'r': /* section is readable */
4691 flags |= IMAGE_SCN_MEM_READ;
4693 case 'w': /* section is writeable */
4694 flags |= IMAGE_SCN_MEM_WRITE;
4696 case 'x': /* section is executable */
4697 flags |= IMAGE_SCN_MEM_EXECUTE;
4699 case 's': /* section is sharable */
4700 flags |= IMAGE_SCN_MEM_SHARED;
4703 /* Section Alignment */
4704 case '0': /* align to byte boundary */
4705 flags |= IMAGE_SCN_ALIGN_1BYTES;
4708 case '1': /* align to halfword boundary */
4709 flags |= IMAGE_SCN_ALIGN_2BYTES;
4712 case '2': /* align to word boundary */
4713 flags |= IMAGE_SCN_ALIGN_4BYTES;
4716 case '3': /* align to doubleword boundary */
4717 flags |= IMAGE_SCN_ALIGN_8BYTES;
4720 case '4': /* align to quadword boundary */
4721 flags |= IMAGE_SCN_ALIGN_16BYTES;
4724 case '5': /* align to 32 byte boundary */
4725 flags |= IMAGE_SCN_ALIGN_32BYTES;
4728 case '6': /* align to 64 byte boundary */
4729 flags |= IMAGE_SCN_ALIGN_64BYTES;
4734 as_bad (_("unknown section attribute '%c'"),
4735 *input_line_pointer);
4738 ++input_line_pointer;
4740 if (*input_line_pointer == '"')
4741 ++input_line_pointer;
4745 sec = subseg_new (name, (subsegT) exp);
4747 ppc_set_current_section (sec);
4749 if (flags != SEC_NO_FLAGS)
4751 if (! bfd_set_section_flags (stdoutput, sec, flags))
4752 as_bad (_("error setting flags for \"%s\": %s"),
4753 bfd_section_name (stdoutput, sec),
4754 bfd_errmsg (bfd_get_error ()));
4757 bfd_set_section_alignment (stdoutput, sec, align);
4761 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
4767 name = input_line_pointer;
4768 endc = get_symbol_end ();
4770 ext_sym = symbol_find_or_make (name);
4772 *input_line_pointer = endc;
4774 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4775 SF_SET_FUNCTION (ext_sym);
4776 SF_SET_PROCESS (ext_sym);
4777 coff_add_linesym (ext_sym);
4779 demand_empty_rest_of_line ();
4783 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
4785 if (tocdata_section == 0)
4787 tocdata_section = subseg_new (".tocd", 0);
4788 /* FIXME: section flags won't work. */
4789 bfd_set_section_flags (stdoutput, tocdata_section,
4790 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4791 | SEC_READONLY | SEC_DATA));
4793 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4797 rdata_section = subseg_new (".tocd", 0);
4800 ppc_set_current_section (tocdata_section);
4802 demand_empty_rest_of_line ();
4805 /* Don't adjust TOC relocs to use the section symbol. */
4808 ppc_pe_fix_adjustable (fixS *fix)
4810 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4817 /* XCOFF specific symbol and file handling. */
4819 /* Canonicalize the symbol name. We use the to force the suffix, if
4820 any, to use square brackets, and to be in upper case. */
4823 ppc_canonicalize_symbol_name (char *name)
4827 if (ppc_stab_symbol)
4830 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4844 for (s++; *s != '\0' && *s != brac; s++)
4847 if (*s == '\0' || s[1] != '\0')
4848 as_bad (_("bad symbol suffix"));
4856 /* Set the class of a symbol based on the suffix, if any. This is
4857 called whenever a new symbol is created. */
4860 ppc_symbol_new_hook (symbolS *sym)
4862 struct ppc_tc_sy *tc;
4865 tc = symbol_get_tc (sym);
4869 tc->real_name = NULL;
4875 if (ppc_stab_symbol)
4878 s = strchr (S_GET_NAME (sym), '[');
4879 if (s == (const char *) NULL)
4881 /* There is no suffix. */
4890 if (strcmp (s, "BS]") == 0)
4894 if (strcmp (s, "DB]") == 0)
4896 else if (strcmp (s, "DS]") == 0)
4900 if (strcmp (s, "GL]") == 0)
4904 if (strcmp (s, "PR]") == 0)
4908 if (strcmp (s, "RO]") == 0)
4910 else if (strcmp (s, "RW]") == 0)
4914 if (strcmp (s, "SV]") == 0)
4918 if (strcmp (s, "TC]") == 0)
4920 else if (strcmp (s, "TI]") == 0)
4922 else if (strcmp (s, "TB]") == 0)
4924 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4925 tc->class = XMC_TC0;
4928 if (strcmp (s, "UA]") == 0)
4930 else if (strcmp (s, "UC]") == 0)
4934 if (strcmp (s, "XO]") == 0)
4939 if (tc->class == -1)
4940 as_bad (_("Unrecognized symbol suffix"));
4943 /* Set the class of a label based on where it is defined. This
4944 handles symbols without suffixes. Also, move the symbol so that it
4945 follows the csect symbol. */
4948 ppc_frob_label (symbolS *sym)
4950 if (ppc_current_csect != (symbolS *) NULL)
4952 if (symbol_get_tc (sym)->class == -1)
4953 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4955 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4956 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4957 &symbol_rootP, &symbol_lastP);
4958 symbol_get_tc (ppc_current_csect)->within = sym;
4962 dwarf2_emit_label (sym);
4966 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4967 seen. It tells ppc_adjust_symtab whether it needs to look through
4970 static bfd_boolean ppc_saw_abs;
4972 /* Change the name of a symbol just before writing it out. Set the
4973 real name if the .rename pseudo-op was used. Otherwise, remove any
4974 class suffix. Return 1 if the symbol should not be included in the
4978 ppc_frob_symbol (symbolS *sym)
4980 static symbolS *ppc_last_function;
4981 static symbolS *set_end;
4983 /* Discard symbols that should not be included in the output symbol
4985 if (! symbol_used_in_reloc_p (sym)
4986 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4987 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4988 && ! symbol_get_tc (sym)->output
4989 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4992 /* This one will disappear anyway. Don't make a csect sym for it. */
4993 if (sym == abs_section_sym)
4996 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4997 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5003 name = S_GET_NAME (sym);
5004 s = strchr (name, '[');
5005 if (s != (char *) NULL)
5011 snew = xmalloc (len + 1);
5012 memcpy (snew, name, len);
5015 S_SET_NAME (sym, snew);
5019 if (set_end != (symbolS *) NULL)
5021 SA_SET_SYM_ENDNDX (set_end, sym);
5025 if (SF_GET_FUNCTION (sym))
5027 if (ppc_last_function != (symbolS *) NULL)
5028 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5029 ppc_last_function = sym;
5030 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
5032 resolve_symbol_value (symbol_get_tc (sym)->size);
5033 SA_SET_SYM_FSIZE (sym,
5034 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5037 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5038 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5040 if (ppc_last_function == (symbolS *) NULL)
5041 as_bad (_(".ef with no preceding .function"));
5044 set_end = ppc_last_function;
5045 ppc_last_function = NULL;
5047 /* We don't have a C_EFCN symbol, but we need to force the
5048 COFF backend to believe that it has seen one. */
5049 coff_last_function = NULL;
5053 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5054 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5055 && S_GET_STORAGE_CLASS (sym) != C_FILE
5056 && S_GET_STORAGE_CLASS (sym) != C_FCN
5057 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5058 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5059 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5060 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5061 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5062 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5063 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5065 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5066 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5069 union internal_auxent *a;
5071 /* Create a csect aux. */
5072 i = S_GET_NUMBER_AUXILIARY (sym);
5073 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5074 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5075 if (symbol_get_tc (sym)->class == XMC_TC0)
5077 /* This is the TOC table. */
5078 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5079 a->x_csect.x_scnlen.l = 0;
5080 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5082 else if (symbol_get_tc (sym)->subseg != 0)
5084 /* This is a csect symbol. x_scnlen is the size of the
5086 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5087 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5088 S_GET_SEGMENT (sym))
5089 - S_GET_VALUE (sym));
5092 resolve_symbol_value (symbol_get_tc (sym)->next);
5093 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5094 - S_GET_VALUE (sym));
5096 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5098 else if (S_GET_SEGMENT (sym) == bss_section)
5100 /* This is a common symbol. */
5101 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5102 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5103 if (S_IS_EXTERNAL (sym))
5104 symbol_get_tc (sym)->class = XMC_RW;
5106 symbol_get_tc (sym)->class = XMC_BS;
5108 else if (S_GET_SEGMENT (sym) == absolute_section)
5110 /* This is an absolute symbol. The csect will be created by
5111 ppc_adjust_symtab. */
5113 a->x_csect.x_smtyp = XTY_LD;
5114 if (symbol_get_tc (sym)->class == -1)
5115 symbol_get_tc (sym)->class = XMC_XO;
5117 else if (! S_IS_DEFINED (sym))
5119 /* This is an external symbol. */
5120 a->x_csect.x_scnlen.l = 0;
5121 a->x_csect.x_smtyp = XTY_ER;
5123 else if (symbol_get_tc (sym)->class == XMC_TC)
5127 /* This is a TOC definition. x_scnlen is the size of the
5129 next = symbol_next (sym);
5130 while (symbol_get_tc (next)->class == XMC_TC0)
5131 next = symbol_next (next);
5132 if (next == (symbolS *) NULL
5133 || symbol_get_tc (next)->class != XMC_TC)
5135 if (ppc_after_toc_frag == (fragS *) NULL)
5136 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5138 - S_GET_VALUE (sym));
5140 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5141 - S_GET_VALUE (sym));
5145 resolve_symbol_value (next);
5146 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5147 - S_GET_VALUE (sym));
5149 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5155 /* This is a normal symbol definition. x_scnlen is the
5156 symbol index of the containing csect. */
5157 if (S_GET_SEGMENT (sym) == text_section)
5158 csect = ppc_text_csects;
5159 else if (S_GET_SEGMENT (sym) == data_section)
5160 csect = ppc_data_csects;
5164 /* Skip the initial dummy symbol. */
5165 csect = symbol_get_tc (csect)->next;
5167 if (csect == (symbolS *) NULL)
5169 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5170 a->x_csect.x_scnlen.l = 0;
5174 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5176 resolve_symbol_value (symbol_get_tc (csect)->next);
5177 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5178 > S_GET_VALUE (sym))
5180 csect = symbol_get_tc (csect)->next;
5183 a->x_csect.x_scnlen.p =
5184 coffsymbol (symbol_get_bfdsym (csect))->native;
5185 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5188 a->x_csect.x_smtyp = XTY_LD;
5191 a->x_csect.x_parmhash = 0;
5192 a->x_csect.x_snhash = 0;
5193 if (symbol_get_tc (sym)->class == -1)
5194 a->x_csect.x_smclas = XMC_PR;
5196 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5197 a->x_csect.x_stab = 0;
5198 a->x_csect.x_snstab = 0;
5200 /* Don't let the COFF backend resort these symbols. */
5201 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5203 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5205 /* We want the value to be the symbol index of the referenced
5206 csect symbol. BFD will do that for us if we set the right
5208 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5209 combined_entry_type *c = coffsymbol (bsym)->native;
5211 S_SET_VALUE (sym, (valueT) (size_t) c);
5212 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5214 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5219 /* The value is the offset from the enclosing csect. */
5220 block = symbol_get_tc (sym)->within;
5221 csect = symbol_get_tc (block)->within;
5222 resolve_symbol_value (csect);
5223 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5225 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5226 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5228 /* We want the value to be a file offset into the line numbers.
5229 BFD will do that for us if we set the right flags. We have
5230 already set the value correctly. */
5231 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5237 /* Adjust the symbol table. This creates csect symbols for all
5238 absolute symbols. */
5241 ppc_adjust_symtab (void)
5248 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5252 union internal_auxent *a;
5254 if (S_GET_SEGMENT (sym) != absolute_section)
5257 csect = symbol_create (".abs[XO]", absolute_section,
5258 S_GET_VALUE (sym), &zero_address_frag);
5259 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5260 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5261 i = S_GET_NUMBER_AUXILIARY (csect);
5262 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5263 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5264 a->x_csect.x_scnlen.l = 0;
5265 a->x_csect.x_smtyp = XTY_SD;
5266 a->x_csect.x_parmhash = 0;
5267 a->x_csect.x_snhash = 0;
5268 a->x_csect.x_smclas = XMC_XO;
5269 a->x_csect.x_stab = 0;
5270 a->x_csect.x_snstab = 0;
5272 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5274 i = S_GET_NUMBER_AUXILIARY (sym);
5275 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5276 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5277 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5280 ppc_saw_abs = FALSE;
5283 /* Set the VMA for a section. This is called on all the sections in
5287 ppc_frob_section (asection *sec)
5289 static bfd_vma vma = 0;
5291 vma = md_section_align (sec, vma);
5292 bfd_set_section_vma (stdoutput, sec, vma);
5293 vma += bfd_section_size (stdoutput, sec);
5296 #endif /* OBJ_XCOFF */
5299 md_atof (int type, char *litp, int *sizep)
5301 return ieee_md_atof (type, litp, sizep, target_big_endian);
5304 /* Write a value out to the object file, using the appropriate
5308 md_number_to_chars (char *buf, valueT val, int n)
5310 if (target_big_endian)
5311 number_to_chars_bigendian (buf, val, n);
5313 number_to_chars_littleendian (buf, val, n);
5316 /* Align a section (I don't know why this is machine dependent). */
5319 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5324 int align = bfd_get_section_alignment (stdoutput, seg);
5326 return ((addr + (1 << align) - 1) & (-1 << align));
5330 /* We don't have any form of relaxing. */
5333 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5334 asection *seg ATTRIBUTE_UNUSED)
5340 /* Convert a machine dependent frag. We never generate these. */
5343 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5344 asection *sec ATTRIBUTE_UNUSED,
5345 fragS *fragp ATTRIBUTE_UNUSED)
5350 /* We have no need to default values of symbols. */
5353 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5358 /* Functions concerning relocs. */
5360 /* The location from which a PC relative jump should be calculated,
5361 given a PC relative reloc. */
5364 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5366 return fixp->fx_frag->fr_address + fixp->fx_where;
5371 /* This is called to see whether a fixup should be adjusted to use a
5372 section symbol. We take the opportunity to change a fixup against
5373 a symbol in the TOC subsegment into a reloc against the
5374 corresponding .tc symbol. */
5377 ppc_fix_adjustable (fixS *fix)
5379 valueT val = resolve_symbol_value (fix->fx_addsy);
5380 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5381 TC_SYMFIELD_TYPE *tc;
5383 if (symseg == absolute_section)
5386 if (ppc_toc_csect != (symbolS *) NULL
5387 && fix->fx_addsy != ppc_toc_csect
5388 && symseg == data_section
5389 && val >= ppc_toc_frag->fr_address
5390 && (ppc_after_toc_frag == (fragS *) NULL
5391 || val < ppc_after_toc_frag->fr_address))
5395 for (sy = symbol_next (ppc_toc_csect);
5396 sy != (symbolS *) NULL;
5397 sy = symbol_next (sy))
5399 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5401 if (sy_tc->class == XMC_TC0)
5403 if (sy_tc->class != XMC_TC)
5405 if (val == resolve_symbol_value (sy))
5408 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5413 as_bad_where (fix->fx_file, fix->fx_line,
5414 _("symbol in .toc does not match any .tc"));
5417 /* Possibly adjust the reloc to be against the csect. */
5418 tc = symbol_get_tc (fix->fx_addsy);
5420 && tc->class != XMC_TC0
5421 && tc->class != XMC_TC
5422 && symseg != bss_section
5423 /* Don't adjust if this is a reloc in the toc section. */
5424 && (symseg != data_section
5425 || ppc_toc_csect == NULL
5426 || val < ppc_toc_frag->fr_address
5427 || (ppc_after_toc_frag != NULL
5428 && val >= ppc_after_toc_frag->fr_address)))
5431 symbolS *next_csect;
5433 if (symseg == text_section)
5434 csect = ppc_text_csects;
5435 else if (symseg == data_section)
5436 csect = ppc_data_csects;
5440 /* Skip the initial dummy symbol. */
5441 csect = symbol_get_tc (csect)->next;
5443 if (csect != (symbolS *) NULL)
5445 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5446 && (symbol_get_frag (next_csect)->fr_address <= val))
5448 /* If the csect address equals the symbol value, then we
5449 have to look through the full symbol table to see
5450 whether this is the csect we want. Note that we will
5451 only get here if the csect has zero length. */
5452 if (symbol_get_frag (csect)->fr_address == val
5453 && S_GET_VALUE (csect) == val)
5457 for (scan = symbol_next (csect);
5459 scan = symbol_next (scan))
5461 if (symbol_get_tc (scan)->subseg != 0)
5463 if (scan == fix->fx_addsy)
5467 /* If we found the symbol before the next csect
5468 symbol, then this is the csect we want. */
5469 if (scan == fix->fx_addsy)
5476 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5477 fix->fx_addsy = csect;
5482 /* Adjust a reloc against a .lcomm symbol to be against the base
5484 if (symseg == bss_section
5485 && ! S_IS_EXTERNAL (fix->fx_addsy))
5487 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5489 fix->fx_offset += val - resolve_symbol_value (sy);
5496 /* A reloc from one csect to another must be kept. The assembler
5497 will, of course, keep relocs between sections, and it will keep
5498 absolute relocs, but we need to force it to keep PC relative relocs
5499 between two csects in the same section. */
5502 ppc_force_relocation (fixS *fix)
5504 /* At this point fix->fx_addsy should already have been converted to
5505 a csect symbol. If the csect does not include the fragment, then
5506 we need to force the relocation. */
5508 && fix->fx_addsy != NULL
5509 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5510 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5511 > fix->fx_frag->fr_address)
5512 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5513 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5514 <= fix->fx_frag->fr_address))))
5517 return generic_force_reloc (fix);
5520 #endif /* OBJ_XCOFF */
5523 /* If this function returns non-zero, it guarantees that a relocation
5524 will be emitted for a fixup. */
5527 ppc_force_relocation (fixS *fix)
5529 /* Branch prediction relocations must force a relocation, as must
5530 the vtable description relocs. */
5531 switch (fix->fx_r_type)
5533 case BFD_RELOC_PPC_B16_BRTAKEN:
5534 case BFD_RELOC_PPC_B16_BRNTAKEN:
5535 case BFD_RELOC_PPC_BA16_BRTAKEN:
5536 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5537 case BFD_RELOC_24_PLT_PCREL:
5538 case BFD_RELOC_PPC64_TOC:
5544 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5545 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5548 return generic_force_reloc (fix);
5552 ppc_fix_adjustable (fixS *fix)
5554 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5555 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5556 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5557 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5558 && fix->fx_r_type != BFD_RELOC_GPREL16
5559 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5560 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5561 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5562 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5566 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5567 rs_align_code frag. */
5570 ppc_handle_align (struct frag *fragP)
5572 valueT count = (fragP->fr_next->fr_address
5573 - (fragP->fr_address + fragP->fr_fix));
5575 if (count != 0 && (count & 3) == 0)
5577 char *dest = fragP->fr_literal + fragP->fr_fix;
5580 md_number_to_chars (dest, 0x60000000, 4);
5582 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
5584 /* For power6, we want the last nop to be a group terminating
5585 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5586 immediately after this one, with its address set to the last
5587 nop location. This will automatically reduce the number of
5588 nops in the current frag by one. */
5591 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5593 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5594 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5595 group_nop->fr_fix = 0;
5596 group_nop->fr_offset = 1;
5597 group_nop->fr_type = rs_fill;
5598 fragP->fr_next = group_nop;
5599 dest = group_nop->fr_literal;
5602 md_number_to_chars (dest, 0x60210000, 4);
5607 /* Apply a fixup to the object code. This is called for all the
5608 fixups we generated by the call to fix_new_exp, above. In the call
5609 above we used a reloc code which was the largest legal reloc code
5610 plus the operand index. Here we undo that to recover the operand
5611 index. At this point all symbol values should be fully resolved,
5612 and we attempt to completely resolve the reloc. If we can not do
5613 that, we determine the correct reloc code and put it back in the
5617 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5619 valueT value = * valP;
5622 if (fixP->fx_addsy != NULL)
5624 /* Hack around bfd_install_relocation brain damage. */
5626 value += fixP->fx_frag->fr_address + fixP->fx_where;
5631 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5632 the symbol values. If we are doing this relocation the code in
5633 write.c is going to call bfd_install_relocation, which is also
5634 going to use the symbol value. That means that if the reloc is
5635 fully resolved we want to use *valP since bfd_install_relocation is
5637 However, if the reloc is not fully resolved we do not want to use
5638 *valP, and must use fx_offset instead. However, if the reloc
5639 is PC relative, we do want to use *valP since it includes the
5640 result of md_pcrel_from. This is confusing. */
5641 if (fixP->fx_addsy == (symbolS *) NULL)
5644 else if (fixP->fx_pcrel)
5648 value = fixP->fx_offset;
5651 if (fixP->fx_subsy != (symbolS *) NULL)
5653 /* We can't actually support subtracting a symbol. */
5654 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5657 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5660 const struct powerpc_operand *operand;
5664 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5666 operand = &powerpc_operands[opindex];
5669 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5670 does not generate a reloc. It uses the offset of `sym' within its
5671 csect. Other usages, such as `.long sym', generate relocs. This
5672 is the documented behaviour of non-TOC symbols. */
5673 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5674 && (operand->bitm & 0xfff0) == 0xfff0
5675 && operand->shift == 0
5676 && (operand->insert == NULL || ppc_obj64)
5677 && fixP->fx_addsy != NULL
5678 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5679 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5680 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5681 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5683 value = fixP->fx_offset;
5688 /* Fetch the instruction, insert the fully resolved operand
5689 value, and stuff the instruction back again. */
5690 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5691 if (target_big_endian)
5692 insn = bfd_getb32 ((unsigned char *) where);
5694 insn = bfd_getl32 ((unsigned char *) where);
5695 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5696 fixP->tc_fix_data.ppc_cpu,
5697 fixP->fx_file, fixP->fx_line);
5698 if (target_big_endian)
5699 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5701 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5704 /* Nothing else to do here. */
5707 assert (fixP->fx_addsy != NULL);
5709 /* Determine a BFD reloc value based on the operand information.
5710 We are only prepared to turn a few of the operands into
5712 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5713 && operand->bitm == 0x3fffffc
5714 && operand->shift == 0)
5715 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5716 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5717 && operand->bitm == 0xfffc
5718 && operand->shift == 0)
5720 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5723 if (target_big_endian)
5724 fixP->fx_where += 2;
5727 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5728 && operand->bitm == 0x3fffffc
5729 && operand->shift == 0)
5730 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5731 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5732 && operand->bitm == 0xfffc
5733 && operand->shift == 0)
5735 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5738 if (target_big_endian)
5739 fixP->fx_where += 2;
5742 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5743 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5744 && (operand->bitm & 0xfff0) == 0xfff0
5745 && operand->shift == 0)
5747 if (ppc_is_toc_sym (fixP->fx_addsy))
5749 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5752 && (operand->flags & PPC_OPERAND_DS) != 0)
5753 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5758 fixP->fx_r_type = BFD_RELOC_16;
5761 && (operand->flags & PPC_OPERAND_DS) != 0)
5762 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5766 if (target_big_endian)
5767 fixP->fx_where += 2;
5769 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5775 /* Use expr_symbol_where to see if this is an expression
5777 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5778 as_bad_where (fixP->fx_file, fixP->fx_line,
5779 _("unresolved expression that must be resolved"));
5781 as_bad_where (fixP->fx_file, fixP->fx_line,
5782 _("unsupported relocation against %s"),
5783 S_GET_NAME (fixP->fx_addsy));
5791 ppc_elf_validate_fix (fixP, seg);
5793 switch (fixP->fx_r_type)
5795 case BFD_RELOC_CTOR:
5802 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5806 case BFD_RELOC_32_PCREL:
5807 case BFD_RELOC_PPC_EMB_NADDR32:
5808 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5815 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5818 case BFD_RELOC_64_PCREL:
5819 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5823 case BFD_RELOC_GPREL16:
5824 case BFD_RELOC_16_GOT_PCREL:
5825 case BFD_RELOC_16_GOTOFF:
5826 case BFD_RELOC_LO16_GOTOFF:
5827 case BFD_RELOC_HI16_GOTOFF:
5828 case BFD_RELOC_HI16_S_GOTOFF:
5829 case BFD_RELOC_16_BASEREL:
5830 case BFD_RELOC_LO16_BASEREL:
5831 case BFD_RELOC_HI16_BASEREL:
5832 case BFD_RELOC_HI16_S_BASEREL:
5833 case BFD_RELOC_PPC_EMB_NADDR16:
5834 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5835 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5836 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5837 case BFD_RELOC_PPC_EMB_SDAI16:
5838 case BFD_RELOC_PPC_EMB_SDA2REL:
5839 case BFD_RELOC_PPC_EMB_SDA2I16:
5840 case BFD_RELOC_PPC_EMB_RELSEC16:
5841 case BFD_RELOC_PPC_EMB_RELST_LO:
5842 case BFD_RELOC_PPC_EMB_RELST_HI:
5843 case BFD_RELOC_PPC_EMB_RELST_HA:
5844 case BFD_RELOC_PPC_EMB_RELSDA:
5845 case BFD_RELOC_PPC_TOC16:
5847 case BFD_RELOC_PPC64_TOC16_LO:
5848 case BFD_RELOC_PPC64_TOC16_HI:
5849 case BFD_RELOC_PPC64_TOC16_HA:
5853 if (fixP->fx_addsy != NULL)
5854 as_bad_where (fixP->fx_file, fixP->fx_line,
5855 _("cannot emit PC relative %s relocation against %s"),
5856 bfd_get_reloc_code_name (fixP->fx_r_type),
5857 S_GET_NAME (fixP->fx_addsy));
5859 as_bad_where (fixP->fx_file, fixP->fx_line,
5860 _("cannot emit PC relative %s relocation"),
5861 bfd_get_reloc_code_name (fixP->fx_r_type));
5864 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5870 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5873 case BFD_RELOC_16_PCREL:
5874 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5878 case BFD_RELOC_LO16:
5880 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
5883 case BFD_RELOC_LO16_PCREL:
5884 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5888 /* This case happens when you write, for example,
5890 where L1 and L2 are defined later. */
5891 case BFD_RELOC_HI16:
5893 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
5896 case BFD_RELOC_HI16_PCREL:
5897 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5901 case BFD_RELOC_HI16_S:
5903 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
5906 case BFD_RELOC_HI16_S_PCREL:
5907 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5912 case BFD_RELOC_PPC64_HIGHER:
5915 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5916 PPC_HIGHER (value), 2);
5919 case BFD_RELOC_PPC64_HIGHER_S:
5922 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5923 PPC_HIGHERA (value), 2);
5926 case BFD_RELOC_PPC64_HIGHEST:
5929 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5930 PPC_HIGHEST (value), 2);
5933 case BFD_RELOC_PPC64_HIGHEST_S:
5936 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5937 PPC_HIGHESTA (value), 2);
5940 case BFD_RELOC_PPC64_ADDR16_DS:
5941 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5942 case BFD_RELOC_PPC64_GOT16_DS:
5943 case BFD_RELOC_PPC64_GOT16_LO_DS:
5944 case BFD_RELOC_PPC64_PLT16_LO_DS:
5945 case BFD_RELOC_PPC64_SECTOFF_DS:
5946 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5947 case BFD_RELOC_PPC64_TOC16_DS:
5948 case BFD_RELOC_PPC64_TOC16_LO_DS:
5949 case BFD_RELOC_PPC64_PLTGOT16_DS:
5950 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5954 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5955 unsigned long val, mask;
5957 if (target_big_endian)
5958 val = bfd_getb32 (where - 2);
5960 val = bfd_getl32 (where);
5962 /* lq insns reserve the four lsbs. */
5963 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5964 && (val & (0x3f << 26)) == (56u << 26))
5966 val |= value & mask;
5967 if (target_big_endian)
5968 bfd_putb16 ((bfd_vma) val, where);
5970 bfd_putl16 ((bfd_vma) val, where);
5974 case BFD_RELOC_PPC_B16_BRTAKEN:
5975 case BFD_RELOC_PPC_B16_BRNTAKEN:
5976 case BFD_RELOC_PPC_BA16_BRTAKEN:
5977 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5980 case BFD_RELOC_PPC_TLS:
5983 case BFD_RELOC_PPC_DTPMOD:
5984 case BFD_RELOC_PPC_TPREL16:
5985 case BFD_RELOC_PPC_TPREL16_LO:
5986 case BFD_RELOC_PPC_TPREL16_HI:
5987 case BFD_RELOC_PPC_TPREL16_HA:
5988 case BFD_RELOC_PPC_TPREL:
5989 case BFD_RELOC_PPC_DTPREL16:
5990 case BFD_RELOC_PPC_DTPREL16_LO:
5991 case BFD_RELOC_PPC_DTPREL16_HI:
5992 case BFD_RELOC_PPC_DTPREL16_HA:
5993 case BFD_RELOC_PPC_DTPREL:
5994 case BFD_RELOC_PPC_GOT_TLSGD16:
5995 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
5996 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
5997 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
5998 case BFD_RELOC_PPC_GOT_TLSLD16:
5999 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6000 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6001 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6002 case BFD_RELOC_PPC_GOT_TPREL16:
6003 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6004 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6005 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6006 case BFD_RELOC_PPC_GOT_DTPREL16:
6007 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6008 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6009 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6010 case BFD_RELOC_PPC64_TPREL16_DS:
6011 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6012 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6013 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6014 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6015 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6016 case BFD_RELOC_PPC64_DTPREL16_DS:
6017 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6018 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6019 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6020 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6021 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6022 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6025 /* Because SDA21 modifies the register field, the size is set to 4
6026 bytes, rather than 2, so offset it here appropriately. */
6027 case BFD_RELOC_PPC_EMB_SDA21:
6031 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6032 + ((target_big_endian) ? 2 : 0),
6039 /* This can occur if there is a bug in the input assembler, eg:
6040 ".byte <undefined_symbol> - ." */
6042 as_bad (_("Unable to handle reference to symbol %s"),
6043 S_GET_NAME (fixP->fx_addsy));
6045 as_bad (_("Unable to resolve expression"));
6049 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6053 case BFD_RELOC_24_PLT_PCREL:
6054 case BFD_RELOC_PPC_LOCAL24PC:
6055 if (!fixP->fx_pcrel && !fixP->fx_done)
6063 /* Fetch the instruction, insert the fully resolved operand
6064 value, and stuff the instruction back again. */
6065 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6066 if (target_big_endian)
6067 insn = bfd_getb32 ((unsigned char *) where);
6069 insn = bfd_getl32 ((unsigned char *) where);
6070 if ((value & 3) != 0)
6071 as_bad_where (fixP->fx_file, fixP->fx_line,
6072 _("must branch to an address a multiple of 4"));
6073 if ((offsetT) value < -0x40000000
6074 || (offsetT) value >= 0x40000000)
6075 as_bad_where (fixP->fx_file, fixP->fx_line,
6076 _("@local or @plt branch destination is too far away, %ld bytes"),
6078 insn = insn | (value & 0x03fffffc);
6079 if (target_big_endian)
6080 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6082 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6086 case BFD_RELOC_VTABLE_INHERIT:
6089 && !S_IS_DEFINED (fixP->fx_addsy)
6090 && !S_IS_WEAK (fixP->fx_addsy))
6091 S_SET_WEAK (fixP->fx_addsy);
6094 case BFD_RELOC_VTABLE_ENTRY:
6099 /* Generated by reference to `sym@tocbase'. The sym is
6100 ignored by the linker. */
6101 case BFD_RELOC_PPC64_TOC:
6107 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6114 fixP->fx_addnumber = value;
6116 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6117 from the section contents. If we are going to be emitting a reloc
6118 then the section contents are immaterial, so don't warn if they
6119 happen to overflow. Leave such warnings to ld. */
6121 fixP->fx_no_overflow = 1;
6123 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6124 fixP->fx_addnumber = 0;
6128 fixP->fx_addnumber = 0;
6130 /* We want to use the offset within the toc, not the actual VMA
6132 fixP->fx_addnumber =
6133 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6134 - S_GET_VALUE (ppc_toc_csect);
6140 /* Generate a reloc for a fixup. */
6143 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6147 reloc = (arelent *) xmalloc (sizeof (arelent));
6149 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6150 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6151 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6152 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6153 if (reloc->howto == (reloc_howto_type *) NULL)
6155 as_bad_where (fixp->fx_file, fixp->fx_line,
6156 _("reloc %d not supported by object file format"),
6157 (int) fixp->fx_r_type);
6160 reloc->addend = fixp->fx_addnumber;
6166 ppc_cfi_frame_initial_instructions (void)
6168 cfi_add_CFA_def_cfa (1, 0);
6172 tc_ppc_regname_to_dw2regnum (char *regname)
6174 unsigned int regnum = -1;
6178 static struct { char *name; int dw2regnum; } regnames[] =
6180 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6181 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6182 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6183 { "spe_acc", 111 }, { "spefscr", 112 }
6186 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6187 if (strcmp (regnames[i].name, regname) == 0)
6188 return regnames[i].dw2regnum;
6190 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6192 p = regname + 1 + (regname[1] == '.');
6193 regnum = strtoul (p, &q, 10);
6194 if (p == q || *q || regnum >= 32)
6196 if (regname[0] == 'f')
6198 else if (regname[0] == 'v')
6201 else if (regname[0] == 'c' && regname[1] == 'r')
6203 p = regname + 2 + (regname[2] == '.');
6204 if (p[0] < '0' || p[0] > '7' || p[1])
6206 regnum = p[0] - '0' + 68;