#ifdef OBJ_ELF
#include "elf/ppc.h"
+#include "elf/ppc64.h"
#include "dwarf2dbg.h"
#endif
static void ppc_elf_cons (int);
static void ppc_elf_rdata (int);
static void ppc_elf_lcomm (int);
+static void ppc_elf_localentry (int);
+static void ppc_elf_abiversion (int);
#endif
#ifdef TE_PE
ppc_cpu_t ppc_cpu = 0;
ppc_cpu_t sticky = 0;
+/* Value for ELF e_flags EF_PPC64_ABI. */
+unsigned int ppc_abiversion = 0;
+
/* Flags set on encountering toc relocs. */
enum {
has_large_toc_reloc = 1,
{ "rdata", ppc_elf_rdata, 0 },
{ "rodata", ppc_elf_rdata, 0 },
{ "lcomm", ppc_elf_lcomm, 0 },
+ { "localentry", ppc_elf_localentry, 0 },
+ { "abiversion", ppc_elf_abiversion, 0 },
#endif
#ifdef TE_PE
MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
+ MAP64 ("localentry", BFD_RELOC_PPC64_ADDR64_LOCAL),
MAP64 ("tprel@high", BFD_RELOC_PPC64_TPREL16_HIGH),
MAP64 ("tprel@higha", BFD_RELOC_PPC64_TPREL16_HIGHA),
MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
demand_empty_rest_of_line ();
}
+/* Pseudo op to set symbol local entry point. */
+static void
+ppc_elf_localentry (int ignore ATTRIBUTE_UNUSED)
+{
+ char *name = input_line_pointer;
+ char c = get_symbol_end ();
+ char *p;
+ expressionS exp;
+ symbolS *sym;
+ asymbol *bfdsym;
+ elf_symbol_type *elfsym;
+
+ p = input_line_pointer;
+ *p = c;
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer != ',')
+ {
+ *p = 0;
+ as_bad (_("expected comma after name `%s' in .localentry directive"),
+ name);
+ *p = c;
+ ignore_rest_of_line ();
+ return;
+ }
+ input_line_pointer++;
+ expression (&exp);
+ if (exp.X_op == O_absent)
+ {
+ as_bad (_("missing expression in .localentry directive"));
+ exp.X_op = O_constant;
+ exp.X_add_number = 0;
+ }
+ *p = 0;
+ sym = symbol_find_or_make (name);
+ *p = c;
+
+ if (resolve_expression (&exp)
+ && exp.X_op == O_constant)
+ {
+ unsigned char encoded = PPC64_SET_LOCAL_ENTRY_OFFSET (exp.X_add_number);
+
+ if (exp.X_add_number != (offsetT) PPC64_LOCAL_ENTRY_OFFSET (encoded))
+ as_bad (_(".localentry expression for `%s' "
+ "is not a valid power of 2"), S_GET_NAME (sym));
+ else
+ {
+ bfdsym = symbol_get_bfdsym (sym);
+ elfsym = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym);
+ gas_assert (elfsym);
+ elfsym->internal_elf_sym.st_other &= ~STO_PPC64_LOCAL_MASK;
+ elfsym->internal_elf_sym.st_other |= encoded;
+ if (ppc_abiversion == 0)
+ ppc_abiversion = 2;
+ }
+ }
+ else
+ as_bad (_(".localentry expression for `%s' "
+ "does not evaluate to a constant"), S_GET_NAME (sym));
+
+ demand_empty_rest_of_line ();
+}
+
+/* Pseudo op to set ABI version. */
+static void
+ppc_elf_abiversion (int ignore ATTRIBUTE_UNUSED)
+{
+ expressionS exp;
+
+ expression (&exp);
+ if (exp.X_op == O_absent)
+ {
+ as_bad (_("missing expression in .abiversion directive"));
+ exp.X_op = O_constant;
+ exp.X_add_number = 0;
+ }
+
+ if (resolve_expression (&exp)
+ && exp.X_op == O_constant)
+ ppc_abiversion = exp.X_add_number;
+ else
+ as_bad (_(".abiversion expression does not evaluate to a constant"));
+ demand_empty_rest_of_line ();
+}
+
+/* Set ABI version in output file. */
+void
+ppc_elf_end (void)
+{
+ if (ppc_obj64 && ppc_abiversion != 0)
+ {
+ elf_elfheader (stdoutput)->e_flags &= ~EF_PPC64_ABI;
+ elf_elfheader (stdoutput)->e_flags |= ppc_abiversion & EF_PPC64_ABI;
+ }
+}
+
/* Validate any relocations emitted for -mrelocatable, possibly adding
fixups for word relocations in writable segments, so we can adjust
them at runtime. */
}
#endif
-#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
+#ifdef OBJ_XCOFF
/* See whether a symbol is in the TOC section. */
static int
ppc_is_toc_sym (symbolS *sym)
{
-#ifdef OBJ_XCOFF
return (symbol_get_tc (sym)->symbol_class == XMC_TC
|| symbol_get_tc (sym)->symbol_class == XMC_TC0);
-#endif
-#ifdef OBJ_ELF
- const char *sname = segment_name (S_GET_SEGMENT (sym));
- if (ppc_obj64)
- return strcmp (sname, ".toc") == 0;
- else
- return strcmp (sname, ".got") == 0;
-#endif
}
-#endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
+#endif
\f
#ifdef OBJ_ELF
break;
}
}
-
- /* For the absolute forms of branches, convert the PC
- relative form back into the absolute. */
- if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
- {
- switch (reloc)
- {
- case BFD_RELOC_PPC_B26:
- reloc = BFD_RELOC_PPC_BA26;
- break;
- case BFD_RELOC_PPC_B16:
- reloc = BFD_RELOC_PPC_BA16;
- break;
- case BFD_RELOC_PPC_B16_BRTAKEN:
- reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
- break;
- case BFD_RELOC_PPC_B16_BRNTAKEN:
- reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
- break;
- default:
- break;
- }
- }
-
- switch (reloc)
- {
- case BFD_RELOC_PPC_TOC16:
- toc_reloc_types |= has_small_toc_reloc;
- break;
- case BFD_RELOC_PPC64_TOC16_LO:
- case BFD_RELOC_PPC64_TOC16_HI:
- case BFD_RELOC_PPC64_TOC16_HA:
- toc_reloc_types |= has_large_toc_reloc;
- break;
- default:
- break;
- }
-
- if ((operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
- {
- switch (reloc)
- {
- case BFD_RELOC_16:
- reloc = BFD_RELOC_PPC64_ADDR16_DS;
- break;
- case BFD_RELOC_LO16:
- reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
- break;
- case BFD_RELOC_16_GOTOFF:
- reloc = BFD_RELOC_PPC64_GOT16_DS;
- break;
- case BFD_RELOC_LO16_GOTOFF:
- reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
- break;
- case BFD_RELOC_LO16_PLTOFF:
- reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
- break;
- case BFD_RELOC_16_BASEREL:
- reloc = BFD_RELOC_PPC64_SECTOFF_DS;
- break;
- case BFD_RELOC_LO16_BASEREL:
- reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
- break;
- case BFD_RELOC_PPC_TOC16:
- reloc = BFD_RELOC_PPC64_TOC16_DS;
- break;
- case BFD_RELOC_PPC64_TOC16_LO:
- reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
- break;
- case BFD_RELOC_PPC64_PLTGOT16:
- reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
- break;
- case BFD_RELOC_PPC64_PLTGOT16_LO:
- reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
- break;
- case BFD_RELOC_PPC_DTPREL16:
- reloc = BFD_RELOC_PPC64_DTPREL16_DS;
- break;
- case BFD_RELOC_PPC_DTPREL16_LO:
- reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
- break;
- case BFD_RELOC_PPC_TPREL16:
- reloc = BFD_RELOC_PPC64_TPREL16_DS;
- break;
- case BFD_RELOC_PPC_TPREL16_LO:
- reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
- break;
- case BFD_RELOC_PPC_GOT_DTPREL16:
- case BFD_RELOC_PPC_GOT_DTPREL16_LO:
- case BFD_RELOC_PPC_GOT_TPREL16:
- case BFD_RELOC_PPC_GOT_TPREL16_LO:
- break;
- default:
- as_bad (_("unsupported relocation for DS offset field"));
- break;
- }
- }
}
#endif /* OBJ_ELF */
/* Determine a BFD reloc value based on the operand information.
We are only prepared to turn a few of the operands into
relocs. */
- else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
+ else if ((operand->flags & (PPC_OPERAND_RELATIVE
+ | PPC_OPERAND_ABSOLUTE)) != 0
&& operand->bitm == 0x3fffffc
&& operand->shift == 0)
reloc = BFD_RELOC_PPC_B26;
- else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
+ else if ((operand->flags & (PPC_OPERAND_RELATIVE
+ | PPC_OPERAND_ABSOLUTE)) != 0
&& operand->bitm == 0xfffc
&& operand->shift == 0)
reloc = BFD_RELOC_PPC_B16;
&& operand->bitm == 0x1fffffe
&& operand->shift == 0)
reloc = BFD_RELOC_PPC_VLE_REL24;
- else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
- && operand->bitm == 0x3fffffc
- && operand->shift == 0)
- reloc = BFD_RELOC_PPC_BA26;
- else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
- && operand->bitm == 0xfffc
- && operand->shift == 0)
- reloc = BFD_RELOC_PPC_BA16;
-#if defined (OBJ_XCOFF) || defined (OBJ_ELF)
- else if ((operand->flags & PPC_OPERAND_PARENS) != 0
+ else if ((operand->flags & PPC_OPERAND_NEGATIVE) == 0
&& (operand->bitm & 0xfff0) == 0xfff0
&& operand->shift == 0)
{
+ reloc = BFD_RELOC_16;
+#ifdef OBJ_XCOFF
/* Note: the symbol may be not yet defined. */
- if (ppc_is_toc_sym (ex.X_add_symbol))
+ if ((operand->flags & PPC_OPERAND_PARENS) != 0
+ && ppc_is_toc_sym (ex.X_add_symbol))
+ reloc = BFD_RELOC_PPC_TOC16;
+#endif
+ }
+
+ /* For the absolute forms of branches, convert the PC
+ relative form back into the absolute. */
+ if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
+ {
+ switch (reloc)
{
- reloc = BFD_RELOC_PPC_TOC16;
+ case BFD_RELOC_PPC_B26:
+ reloc = BFD_RELOC_PPC_BA26;
+ break;
+ case BFD_RELOC_PPC_B16:
+ reloc = BFD_RELOC_PPC_BA16;
+ break;
#ifdef OBJ_ELF
- if (ppc_obj64
- && (operand->flags & PPC_OPERAND_DS) != 0)
- reloc = BFD_RELOC_PPC64_TOC16_DS;
+ case BFD_RELOC_PPC_B16_BRTAKEN:
+ reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
+ break;
+ case BFD_RELOC_PPC_B16_BRNTAKEN:
+ reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
+ break;
#endif
+ default:
+ break;
}
- else
- {
- reloc = BFD_RELOC_16;
+ }
+
#ifdef OBJ_ELF
- if (ppc_obj64
- && (operand->flags & PPC_OPERAND_DS) != 0)
- reloc = BFD_RELOC_PPC64_ADDR16_DS;
-#endif
+ switch (reloc)
+ {
+ case BFD_RELOC_PPC_TOC16:
+ toc_reloc_types |= has_small_toc_reloc;
+ break;
+ case BFD_RELOC_PPC64_TOC16_LO:
+ case BFD_RELOC_PPC64_TOC16_HI:
+ case BFD_RELOC_PPC64_TOC16_HA:
+ toc_reloc_types |= has_large_toc_reloc;
+ break;
+ default:
+ break;
+ }
+
+ if (ppc_obj64
+ && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
+ {
+ switch (reloc)
+ {
+ case BFD_RELOC_16:
+ reloc = BFD_RELOC_PPC64_ADDR16_DS;
+ break;
+ case BFD_RELOC_LO16:
+ reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
+ break;
+ case BFD_RELOC_16_GOTOFF:
+ reloc = BFD_RELOC_PPC64_GOT16_DS;
+ break;
+ case BFD_RELOC_LO16_GOTOFF:
+ reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
+ break;
+ case BFD_RELOC_LO16_PLTOFF:
+ reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
+ break;
+ case BFD_RELOC_16_BASEREL:
+ reloc = BFD_RELOC_PPC64_SECTOFF_DS;
+ break;
+ case BFD_RELOC_LO16_BASEREL:
+ reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
+ break;
+ case BFD_RELOC_PPC_TOC16:
+ reloc = BFD_RELOC_PPC64_TOC16_DS;
+ break;
+ case BFD_RELOC_PPC64_TOC16_LO:
+ reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
+ break;
+ case BFD_RELOC_PPC64_PLTGOT16:
+ reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
+ break;
+ case BFD_RELOC_PPC64_PLTGOT16_LO:
+ reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
+ break;
+ case BFD_RELOC_PPC_DTPREL16:
+ reloc = BFD_RELOC_PPC64_DTPREL16_DS;
+ break;
+ case BFD_RELOC_PPC_DTPREL16_LO:
+ reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
+ break;
+ case BFD_RELOC_PPC_TPREL16:
+ reloc = BFD_RELOC_PPC64_TPREL16_DS;
+ break;
+ case BFD_RELOC_PPC_TPREL16_LO:
+ reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
+ break;
+ case BFD_RELOC_PPC_GOT_DTPREL16:
+ case BFD_RELOC_PPC_GOT_DTPREL16_LO:
+ case BFD_RELOC_PPC_GOT_TPREL16:
+ case BFD_RELOC_PPC_GOT_TPREL16_LO:
+ break;
+ default:
+ as_bad (_("unsupported relocation for DS offset field"));
+ break;
}
}
-#endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
+#endif
/* We need to generate a fixup for this expression. */
if (fc >= MAX_INSN_FIXUPS)
case BFD_RELOC_24_PLT_PCREL:
case BFD_RELOC_PPC64_TOC:
return 1;
+ case BFD_RELOC_PPC_B26:
+ case BFD_RELOC_PPC_BA26:
+ case BFD_RELOC_PPC_B16:
+ case BFD_RELOC_PPC_BA16:
+ /* All branch fixups targeting a localentry symbol must
+ force a relocation. */
+ if (fix->fx_addsy)
+ {
+ asymbol *bfdsym = symbol_get_bfdsym (fix->fx_addsy);
+ elf_symbol_type *elfsym
+ = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym);
+ gas_assert (elfsym);
+ if ((STO_PPC64_LOCAL_MASK & elfsym->internal_elf_sym.st_other) != 0)
+ return 1;
+ }
+ break;
default:
break;
}
int
ppc_fix_adjustable (fixS *fix)
{
+ switch (fix->fx_r_type)
+ {
+ /* All branch fixups targeting a localentry symbol must
+ continue using the symbol. */
+ case BFD_RELOC_PPC_B26:
+ case BFD_RELOC_PPC_BA26:
+ case BFD_RELOC_PPC_B16:
+ case BFD_RELOC_PPC_BA16:
+ case BFD_RELOC_PPC_B16_BRTAKEN:
+ case BFD_RELOC_PPC_B16_BRNTAKEN:
+ case BFD_RELOC_PPC_BA16_BRTAKEN:
+ case BFD_RELOC_PPC_BA16_BRNTAKEN:
+ if (fix->fx_addsy)
+ {
+ asymbol *bfdsym = symbol_get_bfdsym (fix->fx_addsy);
+ elf_symbol_type *elfsym
+ = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym);
+ gas_assert (elfsym);
+ if ((STO_PPC64_LOCAL_MASK & elfsym->internal_elf_sym.st_other) != 0)
+ return 0;
+ }
+ break;
+ default:
+ break;
+ }
+
return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
&& fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
&& fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
case BFD_RELOC_PPC64_HIGHEST_S:
case BFD_RELOC_PPC64_ADDR16_HIGH:
case BFD_RELOC_PPC64_ADDR16_HIGHA:
+ case BFD_RELOC_PPC64_ADDR64_LOCAL:
break;
case BFD_RELOC_PPC_DTPMOD:
projects / external / binutils.git / blobdiff