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bfd/
* elf32-mips.c (mips_elf_adjust_addend): New function, mostly split out from... (_bfd_mips_elf_relocate_section): ...here. Use it to adjust r_addend for final links too. ld/testsuite/ * ld-mips/emit-relocs-1a.s, ld-mips/emit-relocs-1b.s, * ld-mips/emit-relocs-1.ld, ld-mips/emit-relocs-1.d: New test. * ld-mips/mips-elf.exp: Run it.
This commit is contained in:
Richard Sandiford
parent
2f83030ff5
commit
81d43bffb5
@ -1,3 +1,10 @@
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2006-03-14 Richard Sandiford <richard@codesourcery.com>
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* elf32-mips.c (mips_elf_adjust_addend): New function, mostly split
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out from...
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(_bfd_mips_elf_relocate_section): ...here. Use it to adjust r_addend
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for final links too.
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2006-03-13 Richard Sandiford <richard@codesourcery.com>
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* elfxx-mips.c (mips_elf_create_got_section): Initialize hgot.
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@ -6934,6 +6934,48 @@ _bfd_mips_elf_size_dynamic_sections (bfd *output_bfd,
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return TRUE;
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}
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/* REL is a relocation in INPUT_BFD that is being copied to OUTPUT_BFD.
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Adjust its R_ADDEND field so that it is correct for the output file.
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LOCAL_SYMS and LOCAL_SECTIONS are arrays of INPUT_BFD's local symbols
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and sections respectively; both use symbol indexes. */
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static void
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mips_elf_adjust_addend (bfd *output_bfd, struct bfd_link_info *info,
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bfd *input_bfd, Elf_Internal_Sym *local_syms,
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asection **local_sections, Elf_Internal_Rela *rel)
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{
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unsigned int r_type, r_symndx;
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Elf_Internal_Sym *sym;
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asection *sec;
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if (mips_elf_local_relocation_p (input_bfd, rel, local_sections, FALSE))
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{
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r_type = ELF_R_TYPE (output_bfd, rel->r_info);
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if (r_type == R_MIPS16_GPREL
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|| r_type == R_MIPS_GPREL16
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|| r_type == R_MIPS_GPREL32
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|| r_type == R_MIPS_LITERAL)
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{
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rel->r_addend += _bfd_get_gp_value (input_bfd);
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rel->r_addend -= _bfd_get_gp_value (output_bfd);
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}
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r_symndx = ELF_R_SYM (output_bfd, rel->r_info);
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sym = local_syms + r_symndx;
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/* Adjust REL's addend to account for section merging. */
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if (!info->relocatable)
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{
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sec = local_sections[r_symndx];
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_bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
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}
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/* This would normally be done by the rela_normal code in elflink.c. */
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if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
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rel->r_addend += local_sections[r_symndx]->output_offset;
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}
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}
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/* Relocate a MIPS ELF section. */
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bfd_boolean
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@ -7084,47 +7126,19 @@ _bfd_mips_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
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}
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else
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addend = rel->r_addend;
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mips_elf_adjust_addend (output_bfd, info, input_bfd,
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local_syms, local_sections, rel);
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}
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if (info->relocatable)
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{
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Elf_Internal_Sym *sym;
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unsigned long r_symndx;
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if (r_type == R_MIPS_64 && ! NEWABI_P (output_bfd)
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&& bfd_big_endian (input_bfd))
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rel->r_offset -= 4;
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/* Since we're just relocating, all we need to do is copy
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the relocations back out to the object file, unless
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they're against a section symbol, in which case we need
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to adjust by the section offset, or unless they're GP
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relative in which case we need to adjust by the amount
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that we're adjusting GP in this relocatable object. */
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if (! mips_elf_local_relocation_p (input_bfd, rel, local_sections,
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FALSE))
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/* There's nothing to do for non-local relocations. */
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continue;
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if (r_type == R_MIPS16_GPREL
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|| r_type == R_MIPS_GPREL16
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|| r_type == R_MIPS_GPREL32
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|| r_type == R_MIPS_LITERAL)
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addend -= (_bfd_get_gp_value (output_bfd)
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- _bfd_get_gp_value (input_bfd));
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r_symndx = ELF_R_SYM (output_bfd, rel->r_info);
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sym = local_syms + r_symndx;
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if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
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/* Adjust the addend appropriately. */
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addend += local_sections[r_symndx]->output_offset;
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if (rela_relocation_p)
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/* If this is a RELA relocation, just update the addend. */
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rel->r_addend = addend;
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else
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if (!rela_relocation_p && rel->r_addend)
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{
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addend += rel->r_addend;
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if (r_type == R_MIPS_HI16
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|| r_type == R_MIPS_GOT16)
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addend = mips_elf_high (addend);
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@ -1,3 +1,9 @@
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2006-03-14 Richard Sandiford <richard@codesourcery.com>
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* ld-mips/emit-relocs-1a.s, ld-mips/emit-relocs-1b.s,
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* ld-mips/emit-relocs-1.ld, ld-mips/emit-relocs-1.d: New test.
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* ld-mips/mips-elf.exp: Run it.
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2006-03-07 Richard Sandiford <richard@codesourcery.com>
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* ld-arm/vxworks1.dd, ld-arm/vxworks1.ld, ld-arm/vxworks1-lib.dd,
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37
ld/testsuite/ld-mips-elf/emit-relocs-1.d
Normal file
37
ld/testsuite/ld-mips-elf/emit-relocs-1.d
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@ -0,0 +1,37 @@
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#name: Emit relocs 1
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#source: emit-relocs-1a.s -mabi=n32 -EB
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#source: emit-relocs-1b.s -mabi=n32 -EB
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#ld: -q -T emit-relocs-1.ld -melf32btsmipn32
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#objdump: -sr
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.*: file format .*
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RELOCATION RECORDS FOR \[\.data\]:
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OFFSET TYPE VALUE *
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00000000 R_MIPS_32 \.data
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00000004 R_MIPS_32 \.data\+0x00001000
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00000008 R_MIPS_32 \.merge1\+0x00000002
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0000000c R_MIPS_32 \.merge2
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00000010 R_MIPS_32 \.merge3
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00000014 R_MIPS_32 \.merge3\+0x00000004
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00000020 R_MIPS_32 \.data\+0x00000020
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00000024 R_MIPS_32 \.data\+0x00001020
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00000028 R_MIPS_32 \.merge1
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0000002c R_MIPS_32 \.merge2\+0x00000002
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00000030 R_MIPS_32 \.merge3\+0x00000008
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00000034 R_MIPS_32 \.merge3\+0x00000004
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Contents of section \.text:
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80000 03e00008 00000000 00000000 00000000 .*
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Contents of section \.merge1:
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80400 666c7574 74657200 flutter.*
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Contents of section \.merge2:
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80800 74617374 696e6700 tasting.*
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Contents of section \.merge3:
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80c00 00000100 00000200 00000300 .*
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Contents of section \.data:
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81000 00081000 00082000 00080402 00080800 .*
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81010 00080c00 00080c04 00000000 00000000 .*
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81020 00081020 00082020 00080400 00080802 .*
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81030 00080c08 00080c04 .*
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20
ld/testsuite/ld-mips-elf/emit-relocs-1.ld
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20
ld/testsuite/ld-mips-elf/emit-relocs-1.ld
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@ -0,0 +1,20 @@
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ENTRY(_start)
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SECTIONS
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{
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. = 0x80000;
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.text : { *(.text) }
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. = ALIGN (0x400);
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.merge1 : { *(.merge1) }
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. = ALIGN (0x400);
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.merge2 : { *(.merge2) }
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. = ALIGN (0x400);
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.merge3 : { *(.merge3) }
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. = ALIGN (0x400);
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.data : { *(.data) }
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/DISCARD/ : { *(*) }
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}
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22
ld/testsuite/ld-mips-elf/emit-relocs-1a.s
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22
ld/testsuite/ld-mips-elf/emit-relocs-1a.s
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@ -0,0 +1,22 @@
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.text
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.globl _start
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_start:
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jr $31
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.section .merge1,"aMS",@progbits,1
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A: .string "utter"
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.section .merge2,"aMS",@progbits,1
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B: .string "tasting"
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.section .merge3,"aM",@progbits,4
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C: .4byte 0x100
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D: .4byte 0x200
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.data
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E: .4byte E
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.4byte E + 0x1000
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.4byte A
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.4byte B
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.4byte C
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.4byte D
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17
ld/testsuite/ld-mips-elf/emit-relocs-1b.s
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17
ld/testsuite/ld-mips-elf/emit-relocs-1b.s
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.section .merge1,"aMS",@progbits,1
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A: .string "flutter"
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.section .merge2,"aMS",@progbits,1
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B: .string "sting"
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.section .merge3,"aM",@progbits,4
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C: .4byte 0x300
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D: .4byte 0x200
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.data
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E: .4byte E
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.4byte E + 0x1000
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.4byte A
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.4byte B
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.4byte C
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.4byte D
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@ -105,6 +105,10 @@ if { $linux_gnu } {
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run_dump_test "textrel-1"
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}
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if $has_newabi {
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run_dump_test "emit-relocs-1"
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}
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# For tests which may involve multiple files, use run_ld_link_tests.
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# List contains test-items with 3 items followed by 2 lists:
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