* elf32-avr.c: Add DIFF relocations for AVR.
(avr_final_link_relocate): Handle the DIFF relocs.
(bfd_elf_avr_diff_reloc): New.
(elf32_avr_is_diff_reloc): New.
(elf32_avr_adjust_diff_reloc_value): Reduce difference value.
(elf32_avr_relax_delete_bytes): Recompute difference after deleting
bytes.
* reloc.c: Add BFD_RELOC_AVR_DIFF8/16/32 relocations
gas/ChangeLog
* config/tc-avr.c: Add new flag mlink-relax.
(md_show_usage): Add flag and help text.
(md_parse_option): Record whether link relax is turned on.
(relaxable_section): New.
(avr_validate_fix_sub): New.
(avr_force_relocation): New.
(md_apply_fix): Generate DIFF reloc.
(avr_allow_local_subtract): New.
* config/tc-avr.h (TC_LINKRELAX_FIXUP): Define to 0.
(TC_FORCE_RELOCATION): Define.
(TC_FORCE_RELOCATION_SUB_SAME): Define.
(TC_VALIDATE_FIX_SUB): Define.
(avr_force_relocation): Declare.
(avr_validate_fix_sub): Declare.
(md_allow_local_subtract): Define.
(avr_allow_local_subtract): Declare.
gas/testsuite/ChangeLog
* gas/avr/diffreloc_withrelax.d: New testcase.
* gas/avr/noreloc_withoutrelax.d: Likewise.
* gas/avr/relax.s: Likewise.
include/ChangeLog
* elf/avr.h: Add new DIFF relocs.
ld/testsuite/ChangeLog
* ld-avr/norelax_diff.d: New testcase.
* ld-avr/relax_diff.d: Likewise.
* ld-avr/relax.s: Likewise.
+2014-04-10 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
+
+ * elf32-avr.c: Add DIFF relocations for AVR.
+ (avr_final_link_relocate): Handle the DIFF relocs.
+ (bfd_elf_avr_diff_reloc): New.
+ (elf32_avr_is_diff_reloc): New.
+ (elf32_avr_adjust_diff_reloc_value): Reduce difference value.
+ (elf32_avr_relax_delete_bytes): Recompute difference after deleting
+ bytes.
+
+ * reloc.c: Add BFD_RELOC_AVR_DIFF8/16/32 relocations
+
2014-04-09 Alan Modra <amodra@gmail.com>
* libcoff.h: Regenerate.
/* Enable debugging printout at stdout with this variable. */
static bfd_boolean debug_stubs = FALSE;
+static bfd_reloc_status_type
+bfd_elf_avr_diff_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message);
+
/* Hash table initialization and handling. Code is taken from the hppa port
and adapted to the needs of AVR. */
0xffffff, /* src_mask */
0xffffff, /* dst_mask */
FALSE), /* pcrel_offset */
+ HOWTO (R_AVR_DIFF8, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_avr_diff_reloc, /* special_function */
+ "R_AVR_DIFF8", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+ HOWTO (R_AVR_DIFF16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_avr_diff_reloc, /* special_function */
+ "R_AVR_DIFF16", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffff, /* dst_mask */
+ FALSE), /* pcrel_offset */
+ HOWTO (R_AVR_DIFF32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ FALSE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ bfd_elf_avr_diff_reloc, /* special_function */
+ "R_AVR_DIFF32", /* name */
+ FALSE, /* partial_inplace */
+ 0, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ FALSE) /* pcrel_offset */
};
/* Map BFD reloc types to AVR ELF reloc types. */
{ BFD_RELOC_8, R_AVR_8 },
{ BFD_RELOC_AVR_8_LO, R_AVR_8_LO8 },
{ BFD_RELOC_AVR_8_HI, R_AVR_8_HI8 },
- { BFD_RELOC_AVR_8_HLO, R_AVR_8_HLO8 }
+ { BFD_RELOC_AVR_8_HLO, R_AVR_8_HLO8 },
+ { BFD_RELOC_AVR_DIFF8, R_AVR_DIFF8 },
+ { BFD_RELOC_AVR_DIFF16, R_AVR_DIFF16 },
+ { BFD_RELOC_AVR_DIFF32, R_AVR_DIFF32 }
};
/* Meant to be filled one day with the wrap around address for the
return 0x020000;
}
+/* Perform a diff relocation. Nothing to do, as the difference value is already
+ written into the section's contents. */
+
+static bfd_reloc_status_type
+bfd_elf_avr_diff_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry ATTRIBUTE_UNUSED,
+ asymbol *symbol ATTRIBUTE_UNUSED,
+ void *data ATTRIBUTE_UNUSED,
+ asection *input_section ATTRIBUTE_UNUSED,
+ bfd *output_bfd ATTRIBUTE_UNUSED,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ return bfd_reloc_ok;
+}
+
+
/* Perform a single relocation. By default we use the standard BFD
routines, but a few relocs, we have to do them ourselves. */
bfd_put_16 (input_bfd, (bfd_vma) srel &0x00ffff, contents);
break;
+ case R_AVR_DIFF8:
+ case R_AVR_DIFF16:
+ case R_AVR_DIFF32:
+ /* Nothing to do here, as contents already contains the diff value. */
+ r = bfd_reloc_ok;
+ break;
+
default:
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
e_set);
}
+/* Returns whether the relocation type passed is a diff reloc. */
+
+static bfd_boolean
+elf32_avr_is_diff_reloc (Elf_Internal_Rela *irel)
+{
+ return (ELF32_R_TYPE (irel->r_info) == R_AVR_DIFF8
+ ||ELF32_R_TYPE (irel->r_info) == R_AVR_DIFF16
+ || ELF32_R_TYPE (irel->r_info) == R_AVR_DIFF32);
+}
+
+/* Reduce the diff value written in the section by count if the shrinked
+ insn address happens to fall between the two symbols for which this
+ diff reloc was emitted. */
+
+static void
+elf32_avr_adjust_diff_reloc_value (bfd *abfd,
+ struct bfd_section *isec,
+ Elf_Internal_Rela *irel,
+ bfd_vma symval,
+ bfd_vma shrinked_insn_address,
+ int count)
+{
+ unsigned char *reloc_contents = NULL;
+ unsigned char *isec_contents = elf_section_data (isec)->this_hdr.contents;
+ if (isec_contents == NULL)
+ {
+ if (! bfd_malloc_and_get_section (abfd, isec, &isec_contents))
+ return;
+
+ elf_section_data (isec)->this_hdr.contents = isec_contents;
+ }
+
+ reloc_contents = isec_contents + irel->r_offset;
+
+ /* Read value written in object file. */
+ bfd_vma x = 0;
+ switch (ELF32_R_TYPE (irel->r_info))
+ {
+ case R_AVR_DIFF8:
+ {
+ x = *reloc_contents;
+ break;
+ }
+ case R_AVR_DIFF16:
+ {
+ x = bfd_get_16 (abfd, reloc_contents);
+ break;
+ }
+ case R_AVR_DIFF32:
+ {
+ x = bfd_get_32 (abfd, reloc_contents);
+ break;
+ }
+ default:
+ {
+ BFD_FAIL();
+ }
+ }
+
+ /* For a diff reloc sym1 - sym2 the diff at assembly time (x) is written
+ into the object file at the reloc offset. sym2's logical value is
+ symval (<start_of_section>) + reloc addend. Compute the start and end
+ addresses and check if the shrinked insn falls between sym1 and sym2. */
+
+ bfd_vma end_address = symval + irel->r_addend;
+ bfd_vma start_address = end_address - x;
+
+ /* Reduce the diff value by count bytes and write it back into section
+ contents. */
+
+ if (shrinked_insn_address >= start_address &&
+ shrinked_insn_address <= end_address)
+ {
+ switch (ELF32_R_TYPE (irel->r_info))
+ {
+ case R_AVR_DIFF8:
+ {
+ *reloc_contents = (x - count);
+ break;
+ }
+ case R_AVR_DIFF16:
+ {
+ bfd_put_16 (abfd, (x - count) & 0xFFFF, reloc_contents);
+ break;
+ }
+ case R_AVR_DIFF32:
+ {
+ bfd_put_32 (abfd, (x - count) & 0xFFFFFFFF, reloc_contents);
+ break;
+ }
+ default:
+ {
+ BFD_FAIL();
+ }
+ }
+
+ }
+}
/* Delete some bytes from a section while changing the size of an instruction.
The parameter "addr" denotes the section-relative offset pointing just
if (symval <= shrinked_insn_address
&& (symval + irel->r_addend) > shrinked_insn_address)
{
+ if (elf32_avr_is_diff_reloc (irel))
+ {
+ elf32_avr_adjust_diff_reloc_value (abfd, isec, irel,
+ symval,
+ shrinked_insn_address,
+ count);
+ }
+
irel->r_addend -= count;
if (debug_relax)
ENUMDOC
This is a 8 bit reloc for the AVR that stores bits 16..23 of a symbol
in .byte hlo8(symbol)
-
+ENUM
+ BFD_RELOC_AVR_DIFF8
+ENUMX
+ BFD_RELOC_AVR_DIFF16
+ENUMX
+ BFD_RELOC_AVR_DIFF32
+ENUMDOC
+ AVR relocations to mark the difference of two local symbols.
+ These are only needed to support linker relaxation and can be ignored
+ when not relaxing. The field is set to the value of the difference
+ assuming no relaxation. The relocation encodes the position of the
+ second symbol so the linker can determine whether to adjust the field
+ value.
ENUM
BFD_RELOC_RL78_NEG8
ENUMX
+2014-04-10 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
+
+ * config/tc-avr.c: Add new flag mlink-relax.
+ (md_show_usage): Add flag and help text.
+ (md_parse_option): Record whether link relax is turned on.
+ (relaxable_section): New.
+ (avr_validate_fix_sub): New.
+ (avr_force_relocation): New.
+ (md_apply_fix): Generate DIFF reloc.
+ (avr_allow_local_subtract): New.
+
+ * config/tc-avr.h (TC_LINKRELAX_FIXUP): Define to 0.
+ (TC_FORCE_RELOCATION): Define.
+ (TC_FORCE_RELOCATION_SUB_SAME): Define.
+ (TC_VALIDATE_FIX_SUB): Define.
+ (avr_force_relocation): Declare.
+ (avr_validate_fix_sub): Declare.
+ (md_allow_local_subtract): Define.
+ (avr_allow_local_subtract): Declare.
+
2014-04-10 Andrew Bennett <andrew.bennett@imgtec.com>
* config/tc-mips.c (mips_cpu_info_table): Add P5600
int all_opcodes; /* -mall-opcodes: accept all known AVR opcodes. */
int no_skip_bug; /* -mno-skip-bug: no warnings for skipping 2-word insns. */
int no_wrap; /* -mno-wrap: reject rjmp/rcall with 8K wrap-around. */
+ int link_relax; /* -mlink-relax: generate relocations for linker
+ relaxation. */
};
-static struct avr_opt_s avr_opt = { 0, 0, 0 };
+static struct avr_opt_s avr_opt = { 0, 0, 0, 0 };
const char EXP_CHARS[] = "eE";
const char FLT_CHARS[] = "dD";
OPTION_ALL_OPCODES = OPTION_MD_BASE + 1,
OPTION_NO_SKIP_BUG,
OPTION_NO_WRAP,
- OPTION_ISA_RMW
+ OPTION_ISA_RMW,
+ OPTION_LINK_RELAX
};
struct option md_longopts[] =
{ "mno-skip-bug", no_argument, NULL, OPTION_NO_SKIP_BUG },
{ "mno-wrap", no_argument, NULL, OPTION_NO_WRAP },
{ "mrmw", no_argument, NULL, OPTION_ISA_RMW },
+ { "mlink-relax", no_argument, NULL, OPTION_LINK_RELAX },
{ NULL, no_argument, NULL, 0 }
};
" -mno-wrap reject rjmp/rcall instructions with 8K wrap-around\n"
" (default for avr3, avr5)\n"
" -mrmw accept Read-Modify-Write instructions\n"
+ " -mlink-relax generate relocations for linker relaxation\n"
));
show_mcu_list (stream);
}
case OPTION_ISA_RMW:
specified_mcu.isa |= AVR_ISA_RMW;
return 1;
+ case OPTION_LINK_RELAX:
+ avr_opt.link_relax = 1;
+ return 1;
}
return 0;
}
bfd_set_arch_mach (stdoutput, TARGET_ARCH, avr_mcu->mach);
+ linkrelax = avr_opt.link_relax;
}
/* Resolve STR as a constant expression and return the result.
return fixp->fx_frag->fr_address + fixp->fx_where;
}
+static bfd_boolean
+relaxable_section (asection *sec)
+{
+ return (sec->flags & SEC_DEBUGGING) == 0;
+}
+
+/* Does whatever the xtensa port does. */
+int
+avr_validate_fix_sub (fixS *fix)
+{
+ segT add_symbol_segment, sub_symbol_segment;
+
+ /* The difference of two symbols should be resolved by the assembler when
+ linkrelax is not set. If the linker may relax the section containing
+ the symbols, then an Xtensa DIFF relocation must be generated so that
+ the linker knows to adjust the difference value. */
+ if (!linkrelax || fix->fx_addsy == NULL)
+ return 0;
+
+ /* Make sure both symbols are in the same segment, and that segment is
+ "normal" and relaxable. If the segment is not "normal", then the
+ fix is not valid. If the segment is not "relaxable", then the fix
+ should have been handled earlier. */
+ add_symbol_segment = S_GET_SEGMENT (fix->fx_addsy);
+ if (! SEG_NORMAL (add_symbol_segment) ||
+ ! relaxable_section (add_symbol_segment))
+ return 0;
+
+ sub_symbol_segment = S_GET_SEGMENT (fix->fx_subsy);
+ return (sub_symbol_segment == add_symbol_segment);
+}
+
+/* TC_FORCE_RELOCATION hook */
+
+/* If linkrelax is turned on, and the symbol to relocate
+ against is in a relaxable segment, don't compute the value -
+ generate a relocation instead. */
+int
+avr_force_relocation (fixS *fix)
+{
+ if (linkrelax && fix->fx_addsy
+ && relaxable_section (S_GET_SEGMENT (fix->fx_addsy)))
+ return 1;
+
+ return generic_force_reloc (fix);
+}
+
/* GAS will call this for each fixup. It should store the correct
value in the object file. */
fixP->fx_done = 1;
}
}
-
+ else if (linkrelax && fixP->fx_subsy)
+ {
+ /* For a subtraction relocation expression, generate one
+ of the DIFF relocs, with the value being the difference.
+ Note that a sym1 - sym2 expression is adjusted into a
+ section_start_sym + sym4_offset_from_section_start - sym1
+ expression. fixP->fx_addsy holds the section start symbol,
+ fixP->fx_offset holds sym2's offset, and fixP->fx_subsy
+ holds sym1. Calculate the current difference and write value,
+ but leave fx_offset as is - during relaxation,
+ fx_offset - value gives sym1's value */
+
+ switch (fixP->fx_r_type)
+ {
+ case BFD_RELOC_8:
+ fixP->fx_r_type = BFD_RELOC_AVR_DIFF8;
+ break;
+ case BFD_RELOC_16:
+ fixP->fx_r_type = BFD_RELOC_AVR_DIFF16;
+ break;
+ case BFD_RELOC_32:
+ fixP->fx_r_type = BFD_RELOC_AVR_DIFF32;
+ break;
+ default:
+ as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
+ break;
+ }
+
+ value = S_GET_VALUE (fixP->fx_addsy) +
+ fixP->fx_offset - S_GET_VALUE (fixP->fx_subsy);
+
+ fixP->fx_subsy = NULL;
+ }
/* We don't actually support subtracting a symbol. */
if (fixP->fx_subsy != (symbolS *) NULL)
as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
+ /* For the DIFF relocs, write the value into the object file while still
+ keeping fx_done FALSE, as both the difference (recorded in the object file)
+ and the sym offset (part of fixP) are needed at link relax time */
+ where = (unsigned char *) fixP->fx_frag->fr_literal + fixP->fx_where;
switch (fixP->fx_r_type)
{
default:
case BFD_RELOC_AVR_13_PCREL:
case BFD_RELOC_32:
case BFD_RELOC_16:
+ break;
+ case BFD_RELOC_AVR_DIFF8:
+ *where = value;
+ break;
+ case BFD_RELOC_AVR_DIFF16:
+ bfd_putl16 ((bfd_vma) value, where);
+ break;
+ case BFD_RELOC_AVR_DIFF32:
+ bfd_putl32 ((bfd_vma) value, where);
+ break;
case BFD_RELOC_AVR_CALL:
break;
}
do not line up the same way as for targers that use pre-decrement. */
cfi_add_CFA_offset (DWARF2_DEFAULT_RETURN_COLUMN, 1-return_size);
}
+
+bfd_boolean
+avr_allow_local_subtract (expressionS * left,
+ expressionS * right,
+ segT section)
+{
+ /* If we are not in relaxation mode, subtraction is OK. */
+ if (!linkrelax)
+ return TRUE;
+
+ /* If the symbols are not in a code section then they are OK. */
+ if ((section->flags & SEC_CODE) == 0)
+ return TRUE;
+
+ if (left->X_add_symbol == right->X_add_symbol)
+ return TRUE;
+
+ /* We have to assume that there may be instructions between the
+ two symbols and that relaxation may increase the distance between
+ them. */
+ return FALSE;
+}
visible symbols can be overridden. */
#define EXTERN_FORCE_RELOC 0
+/* If defined, this macro allows control over whether fixups for a
+ given section will be processed when the linkrelax variable is
+ set. Define it to zero and handle things in md_apply_fix instead.*/
+#define TC_LINKRELAX_FIXUP(SEG) 0
+
+/* If this macro returns non-zero, it guarantees that a relocation will be emitted
+ even when the value can be resolved locally. Do that if linkrelax is turned on */
+#define TC_FORCE_RELOCATION(fix) avr_force_relocation (fix)
+#define TC_FORCE_RELOCATION_SUB_SAME(fix, seg) \
+ (! SEG_NORMAL (seg) || avr_force_relocation (fix))
+extern int avr_force_relocation (struct fix *);
+
/* Values passed to md_apply_fix don't include the symbol value. */
#define MD_APPLY_SYM_VALUE(FIX) 0
goto SKIP; \
}
+/* This macro is evaluated for any fixup with a fx_subsy that
+ fixup_segment cannot reduce to a number. If the macro returns
+ false an error will be reported. */
+#define TC_VALIDATE_FIX_SUB(fix, seg) avr_validate_fix_sub (fix)
+extern int avr_validate_fix_sub (struct fix *);
+
/* This target is buggy, and sets fix size too large. */
#define TC_FX_SIZE_SLACK(FIX) 2
/* Define a hook to setup initial CFI state. */
extern void tc_cfi_frame_initial_instructions (void);
#define tc_cfi_frame_initial_instructions tc_cfi_frame_initial_instructions
+
+/* The difference between same-section symbols may be affected by linker
+ relaxation, so do not resolve such expressions in the assembler. */
+#define md_allow_local_subtract(l,r,s) avr_allow_local_subtract (l, r, s)
+extern bfd_boolean avr_allow_local_subtract (expressionS *, expressionS *, segT);
+2014-04-10 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
+
+ * gas/avr/diffreloc_withrelax.d: New testcase.
+ * gas/avr/noreloc_withoutrelax.d: Likewise.
+ * gas/avr/relax.s: Likewise.
+
2014-04-04 Ilya Tocar <ilya.tocar@intel.com>
* gas/i386/i386.exp: Run SE1 tests.
--- /dev/null
+#name: AVR DIFF relocs with link relax
+#as: -mmcu=avrxmega2 -mlink-relax
+#source: relax.s
+#objdump: -r
+#target: avr-*-*
+
+.*: file format elf32-avr
+
+RELOCATION RECORDS FOR \[.text\]:
+OFFSET TYPE VALUE
+00000000 R_AVR_CALL .text
+
+
+RELOCATION RECORDS FOR \[.data\]:
+OFFSET TYPE VALUE
+00000000 R_AVR_DIFF16 .text\+0x00000004
--- /dev/null
+#name: AVR no DIFF relocs without link relax
+#as: -mmcu=avrxmega2
+#objdump: -r
+#source: relax.s
+#target: avr-*-*
+
+.*: file format elf32-avr
+
+RELOCATION RECORDS FOR \[.text\]:
+OFFSET TYPE VALUE
+00000000 R_AVR_CALL .text
--- /dev/null
+ .file "diffreloc.s"
+.section .text,"ax",@progbits
+main:
+L1:
+ jmp L1
+L2:
+.global x
+ .section .data
+ .type x, @object
+ .size x, 2
+x:
+ .word L2 - L1
+2014-04-10 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
+
+ * elf/avr.h: Add new DIFF relocs.
+
2014-03-05 Alan Modra <amodra@gmail.com>
Update copyright years.
RELOC_NUMBER (R_AVR_8_LO8, 27)
RELOC_NUMBER (R_AVR_8_HI8, 28)
RELOC_NUMBER (R_AVR_8_HLO8, 29)
+ RELOC_NUMBER (R_AVR_DIFF8, 30)
+ RELOC_NUMBER (R_AVR_DIFF16, 31)
+ RELOC_NUMBER (R_AVR_DIFF32, 32)
END_RELOC_NUMBERS (R_AVR_max)
#endif /* _ELF_AVR_H */
+2014-04-10 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
+
+ * ld-avr/norelax_diff.d: New testcase.
+ * ld-avr/relax_diff.d: Likewise.
+ * ld-avr/relax.s: Likewise.
+
2014-04-05 Andreas Schwab <schwab@linux-m68k.org>
* ld-plugin/lto.exp: Make "-Wp," prefix optional when filtering
--- /dev/null
+# Copyright 2014
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+
+#
+# Some AVR tests
+#
+
+if {![istarget avr-*-*]} {
+ return
+}
+
+set avr_test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
+foreach avr_test $avr_test_list {
+ verbose [file rootname $avr_test]
+ run_dump_test [file rootname $avr_test]
+}
+
--- /dev/null
+#name: AVR No change in behavior without relaxation
+#as: -mmcu=avrxmega2
+#ld: -mavrxmega2
+#source: relax.s
+#objdump: -s
+#target: avr-*-*
+
+.*: file format elf32-avr
+
+Contents of section .text:
+ 0000 0c940000 .*
+Contents of section .data:
+ 802000 0400 .*
--- /dev/null
+ .file "relax.s"
+.section .text,"ax",@progbits
+main:
+L1:
+ jmp L1
+L2:
+.global x
+ .section .data
+ .type x, @object
+ .size x, 2
+x:
+ .word L2 - L1
--- /dev/null
+#name: AVR Account for relaxation in label differences
+#as: -mmcu=avrxmega2 -mlink-relax
+#ld: -mavrxmega2 --relax
+#source: relax.s
+#objdump: -s
+#target: avr-*-*
+
+.*: file format elf32-avr
+
+Contents of section .text:
+ 0000 ffcf .*
+Contents of section .data:
+ 802000 0200 .*
+
projects / platform / upstream / binutils.git / commitdiff