Browse Source
* elf32-mips.c (mips_elf_next_relocation): Rename from mips_elf_next_lo16_relocation, and generalize to look for any relocation type. (elf_mips_howto_table): Make R_MIPS_PC16 pcrel_offset. (elf_mips_gnu_rel_hi16): Howto for R_MIPS_GNU_REL_HI16. (elf_mips_gnu_rel_lo16): Howto for R_MIPS_GNU_REL_LO16. (elf_mips_gnu_rel16_s2): Howto for R_MIPS_GNU_REL16_S2. (elf_mips_gnu_pcrel64): Howto for R_MIPS_PC64. (elf_mips_gnu_pcrel32): Howto for R_MIPS_PC32. (bfd_elf32_bfd_reloc_type_lookup): Add new relocs. (mips_rtype_to_howto): Likewise. (mips_elf_calculate_relocation): Handle new relocs. (_bfd_mips_elf_relocate_section): REL_HI16/REL_LO16 relocs are paired. The addend for R_MIPS_GNU_REL16_S2 is shifted right two bits. In gas/: * config/tc-mips.c (mips_ip): Don't put stuff in .rodata when embedded-pic. * config/tc-mips.c (SWITCH_TABLE): The ELF embedded-pic implementation doesn't have special handling for switch statements. (macro_build): Allow for code in sections other than .text. (macro): Likewise. (mips_ip): Likewise. (md_apply_fix): Do pc-relative relocation madness for MIPS ELF. Don't perform relocs if we will be outputting them. (tc_gen_reloc): For ELF, just use fx_addnumber for pc-relative relocations. Allow BFD_RELOC_16_PCREL_S2 relocs when embedded-pic. In gas/testsuite/: * gas/mips/empic.d: New file. * gas/mips/empic.s: New file. * gas/mips/mips16-e.d: New file. * gas/mips/mips16-e.s: New file. * gas/mips/mips16-f.d: New file. * gas/mips/mips16-f.s: New file. * gas/mips/mips.exp: Add empic, mips16-e. Add mips16-f as an expected failure. In include/elf: * mips.h: Add R_MIPS_GNU_REL_HI16, R_MIPS_GNU_REL_LO16, R_MIPS_GNU_REL16_S2, R_MIPS_PC64 and R_MIPS_PC32 relocation numbers.gdb-premipsmulti-2000-06-06-branch
Geoffrey Keating
27 years ago
14 changed files with 636 additions and 41 deletions
@ -0,0 +1,155 @@ |
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#objdump: -rst -mmips:4000 |
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#name: MIPS empic |
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#as: -membedded-pic -mips3 |
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|
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# Check GNU-specific embedded relocs, for ELF. |
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|
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.*: +file format elf.*mips.* |
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|
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SYMBOL TABLE: |
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0+0000000 l d \.text 0+0000000 |
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0+0000000 l d \.data 0+0000000 |
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0+0000000 l d \.bss 0+0000000 |
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0+0000000 l d \.foo 0+0000000 |
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0+0000000 l d \.reginfo 0+0000000 |
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0+0000000 l d \.mdebug 0+0000000 |
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0+0000004 l \.text 0+0000000 l2 |
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0+0000000 \*UND\* 0+0000000 g1 |
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0+0000000 \*UND\* 0+0000000 g2 |
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0+0000100 l \.foo 0+0000000 l1 |
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0+0000034 l \.text 0+0000000 l3 |
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0+0000098 l \.text 0+0000000 l5 |
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0+0000004 l \.foo 0+0000000 l4 |
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|
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|
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RELOCATION RECORDS FOR \[\.text\]: |
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OFFSET TYPE VALUE |
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0+0000004 R_MIPS_GNU_REL16_S2 g1 |
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0+000000c R_MIPS_GNU_REL16_S2 g2 |
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0+0000014 R_MIPS_GNU_REL16_S2 g2 |
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0+000001c R_MIPS_GNU_REL16_S2 \.foo |
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0+0000024 R_MIPS_GNU_REL16_S2 \.text |
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0+000002c R_MIPS_GNU_REL16_S2 \.foo |
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0+0000034 R_MIPS_GNU_REL16_S2 \.text |
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0+000003c R_MIPS_GNU_REL_HI16 g1 |
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0+0000040 R_MIPS_GNU_REL_LO16 g1 |
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0+0000044 R_MIPS_GNU_REL_HI16 \.foo |
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0+0000048 R_MIPS_GNU_REL_LO16 \.foo |
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0+0000050 R_MIPS_32 g1 |
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0+0000054 R_MIPS_32 \.foo |
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0+0000058 R_MIPS_32 \.text |
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0+000005c R_MIPS_PC32 g1 |
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0+0000060 R_MIPS_PC32 \.foo |
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0+0000068 R_MIPS_64 g1 |
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0+0000070 R_MIPS_64 \.foo |
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0+0000078 R_MIPS_64 \.text |
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0+0000080 R_MIPS_PC64 g1 |
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0+0000088 R_MIPS_PC64 \.foo |
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0+0000098 R_MIPS_GNU_REL16_S2 \.text |
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0+000009c R_MIPS_GNU_REL16_S2 \.text |
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0+00000a0 R_MIPS_GNU_REL_HI16 \.text |
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0+00000a4 R_MIPS_GNU_REL_LO16 \.text |
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0+00000a8 R_MIPS_GNU_REL_HI16 \.text |
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0+00000ac R_MIPS_GNU_REL_LO16 \.text |
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0+00000b0 R_MIPS_32 \.text |
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0+00000b8 R_MIPS_64 \.text |
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0+00000cc R_MIPS_GNU_REL16_S2 \.text |
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0+00000d0 R_MIPS_GNU_REL16_S2 \.text |
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0+00000d4 R_MIPS_GNU_REL_HI16 \.text |
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0+00000d8 R_MIPS_GNU_REL_LO16 \.text |
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0+00000dc R_MIPS_GNU_REL_HI16 \.text |
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0+00000e0 R_MIPS_GNU_REL_LO16 \.text |
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0+00000e4 R_MIPS_32 \.text |
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0+00000f0 R_MIPS_64 \.text |
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|
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|
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RELOCATION RECORDS FOR \[\.foo\]: |
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OFFSET TYPE VALUE |
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0+0000004 R_MIPS_GNU_REL_HI16 g1 |
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0+0000008 R_MIPS_GNU_REL_LO16 g1 |
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0+000000c R_MIPS_GNU_REL_HI16 \.foo |
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0+0000010 R_MIPS_GNU_REL_LO16 \.foo |
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0+0000014 R_MIPS_GNU_REL_HI16 \.text |
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0+0000018 R_MIPS_GNU_REL_LO16 \.text |
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0+000001c R_MIPS_GNU_REL_HI16 g1 |
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0+0000020 R_MIPS_GNU_REL_LO16 g1 |
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0+0000024 R_MIPS_GNU_REL_HI16 g1 |
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0+0000028 R_MIPS_GNU_REL_LO16 g1 |
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0+000002c R_MIPS_GNU_REL_HI16 \.foo |
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0+0000030 R_MIPS_GNU_REL_LO16 \.foo |
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0+0000034 R_MIPS_GNU_REL_HI16 \.text |
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0+0000038 R_MIPS_GNU_REL_LO16 \.text |
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0+000003c R_MIPS_32 g1 |
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0+0000040 R_MIPS_32 \.foo |
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0+0000044 R_MIPS_32 \.text |
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0+0000048 R_MIPS_PC32 g1 |
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0+0000050 R_MIPS_PC32 \.text |
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0+0000058 R_MIPS_64 g1 |
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0+0000060 R_MIPS_64 \.foo |
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0+0000068 R_MIPS_64 \.text |
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0+0000070 R_MIPS_PC64 g1 |
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0+0000080 R_MIPS_PC64 \.text |
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0+0000088 R_MIPS_GNU_REL_HI16 g1 |
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0+000008c R_MIPS_GNU_REL_LO16 g1 |
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0+0000090 R_MIPS_GNU_REL_HI16 \.foo |
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0+0000094 R_MIPS_GNU_REL_LO16 \.foo |
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0+0000098 R_MIPS_GNU_REL_HI16 \.text |
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0+000009c R_MIPS_GNU_REL_LO16 \.text |
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0+00000a0 R_MIPS_GNU_REL_HI16 g1 |
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0+00000a4 R_MIPS_GNU_REL_LO16 g1 |
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0+00000a8 R_MIPS_GNU_REL_HI16 \.foo |
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0+00000ac R_MIPS_GNU_REL_LO16 \.foo |
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0+00000b0 R_MIPS_GNU_REL_HI16 \.text |
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0+00000b4 R_MIPS_GNU_REL_LO16 \.text |
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0+00000b8 R_MIPS_32 g1 |
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0+00000bc R_MIPS_32 \.foo |
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0+00000c0 R_MIPS_32 \.text |
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0+00000c4 R_MIPS_PC32 g1 |
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0+00000cc R_MIPS_PC32 \.text |
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0+00000d0 R_MIPS_64 g1 |
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0+00000d8 R_MIPS_64 \.foo |
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0+00000e0 R_MIPS_64 \.text |
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0+00000e8 R_MIPS_PC64 g1 |
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0+00000f8 R_MIPS_PC64 \.text |
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|
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Contents of section \.text: |
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0000 00000000 0411ffff 00000000 1000ffff .* |
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0010 00000000 1000ffff 00000000 0411003f .* |
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0020 00000000 04110000 00000000 10000041 .* |
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0030 00000000 10000000 00000000 3c030000 .* |
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0040 [26]463000c 3c030000 [26]4630114 2403ffd0 .* |
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0050 00000000 00000100 00000004 00000028 .* |
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0060 0000012c ffffffd0 00000000 00000000 .* |
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0070 00000000 00000100 00000000 00000004 .* |
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0080 00000000 0000004c 00000000 00000154 .* |
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0090 ffffffff ffffffd0 10000032 10000033 .* |
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00a0 3c030000 [26]46300d8 3c030000 [26]46300e8 .* |
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00b0 000000cc 00000034 00000000 000000cc .* |
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00c0 00000000 00000034 00000000 10000032 .* |
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00d0 10000033 3c030000 [26]463010c 3c030000 .* |
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00e0 [26]463011c 000000cc 00000034 00000000 .* |
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00f0 00000000 000000cc 00000000 00000034 .* |
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Contents of section \.data: |
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Contents of section \.reginfo: |
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0000 80000008 00000000 00000000 00000000 .* |
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0010 00000000 00000000 .* |
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Contents of section \.mdebug: |
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#... |
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Contents of section \.foo: |
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0000 00000000 3c030000 [26]4630004 3c030000 .* |
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0010 [26]463010c 3c030000 [26]4630018 3c030000 .* |
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0020 [26]463001c 3c030000 [26]4630024 3c030000 .* |
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0030 [26]463012c 3c030000 [26]4630038 00000000 .* |
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0040 00000100 00000004 00000044 000000fc .* |
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0050 00000050 00000000 00000000 00000000 .* |
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0060 00000000 00000100 00000000 00000004 .* |
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0070 00000000 0000006c 00000000 000000fc .* |
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0080 00000000 00000080 3c030000 [26]463008c .* |
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0090 3c030000 [26]4630194 3c030000 [26]46300a0 .* |
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00a0 3c030000 [26]46300a4 3c030000 [26]46301ac .* |
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00b0 3c030000 [26]46300b8 00000004 00000104 .* |
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00c0 00000008 000000c4 00000100 000000d0 .* |
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00d0 00000000 00000004 00000000 00000104 .* |
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00e0 00000000 00000008 00000000 000000e8 .* |
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00f0 00000000 00000100 00000000 000000fc .* |
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0100 00000000 .* |
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@ -0,0 +1,112 @@ |
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# Check GNU-specific embedded relocs, for ELF. |
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|
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.text |
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.set noreorder |
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nop |
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l2: jal g1 # R_MIPS_GNU_REL16_S2 g1 -1 |
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nop |
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b g2 # R_MIPS_GNU_REL16_S2 g2 -1 |
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nop |
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b g2 # R_MIPS_GNU_REL16_S2 g2 -1 |
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nop |
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jal l1 # R_MIPS_GNU_REL16_S2 .foo 3F |
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nop |
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jal l2 # R_MIPS_GNU_REL16_S2 .text 0 or -9 |
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nop |
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b l1+8 # R_MIPS_GNU_REL16_S2 .foo 41 |
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nop |
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l3: |
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b l2 # R_MIPS_GNU_REL16_S2 .text 0 or -D |
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nop |
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la $3,g1-l3 # R_MIPS_GNU_REL_HI16 g1 0 |
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# R_MIPS_GNU_REL_LO16 g1 C |
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la $3,l1-l3 # R_MIPS_GNU_REL_HI16 .foo 0 |
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# R_MIPS_GNU_REL_LO16 .foo 114 |
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la $3,l2-l3 # -30 |
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.word g1 # R_MIPS_32 g1 0 |
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.word l1 # R_MIPS_32 .foo 100 |
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.word l2 # R_MIPS_32 .text 4 |
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.word g1-l3 # R_MIPS_PC32 g1 28 |
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.word l1-l3 # R_MIPS_PC32 .foo 12C |
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.word l2-l3 # -30 |
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.align 3 |
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.dword g1 # R_MIPS_64 g1 0 |
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.dword l1 # R_MIPS_64 .foo 100 |
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.dword l2 # R_MIPS_64 .text 4 |
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.dword g1-l3 # R_MIPS_PC64 g1 4C |
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.dword l1-l3 # R_MIPS_PC64 .foo 154 |
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.dword l2-l3 # -30 |
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l5: |
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b 2f # R_MIPS_GNU_REL16_S2 .text 32 |
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b 2f+4 # R_MIPS_GNU_REL16_S2 .text 33 |
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la $3,2f-l5 # R_MIPS_GNU_REL_HI16 .text 0 |
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# R_MIPS_GNU_REL_HI16 .text D8 |
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la $3,2f+8-l5 # R_MIPS_GNU_REL_HI16 .text 0 |
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# R_MIPS_GNU_REL_HI16 .text E8 |
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|
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.word 2f # R_MIPS_32 .text CC |
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.word 2f-l5 # R_MIPS_PC32 .text EC or 34 |
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.dword 2f # R_MIPS_64 .text CC |
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.dword 2f-l5 # R_MIPS_PC64 .text F8 or 34 |
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nop |
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2: # at address 0xCC. |
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b 2b # R_MIPS_GNU_REL16_S2 .text 32 |
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b 2b+4 # R_MIPS_GNU_REL16_S2 .text 33 |
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la $3,2b-l5 # R_MIPS_GNU_REL_HI16 .text 0 |
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# R_MIPS_GNU_REL_HI16 .text 10C |
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la $3,2b+8-l5 # R_MIPS_GNU_REL_HI16 .text 0 |
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# R_MIPS_GNU_REL_HI16 .text 11C |
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.word 2b # R_MIPS_32 .text CC |
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.word 2b-l5 # R_MIPS_PC32 .text 11C or 34 |
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nop |
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.dword 2b # R_MIPS_64 .text CC |
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.dword 2b-l5 # R_MIPS_PC64 .text 98 or 34 |
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|
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.section ".foo","ax",@progbits |
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nop |
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l4: |
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la $3,g1-l4 |
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la $3,l1-l4 |
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la $3,l2-l4 |
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la $3,g1-l4 |
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|
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dla $3,g1-l4 |
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dla $3,l1-l4 |
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dla $3,l2-l4 |
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|
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.word g1 |
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.word l1 |
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.word l2 |
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.word g1-l4 |
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.word l1-l4 |
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.word l2-l4 |
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.dword g1 |
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.dword l1 |
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.dword l2 |
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.dword g1-l4 |
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.dword l1-l4 |
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.dword l2-l4 |
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|
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la $3,g1-l4+4 |
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la $3,l1-l4+4 |
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la $3,l2-l4+4 |
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dla $3,g1-l4+4 |
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dla $3,l1-l4+4 |
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dla $3,l2-l4+4 |
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|
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.word g1+4 |
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.word l1+4 |
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.word l2+4 |
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.word g1-l4+4 |
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.word l1-l4+4 |
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.word l2-l4+4 |
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.dword g1+4 |
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.dword l1+4 |
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.dword l2+4 |
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.dword g1-l4+4 |
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.dword l1-l4+4 |
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.dword l2-l4+4 |
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l1: |
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|
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nop |
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@ -0,0 +1,41 @@ |
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#objdump: -rst -mips16 |
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#name: MIPS16 reloc |
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#as: -mips16 |
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|
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# Check MIPS16 reloc processing |
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|
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.*: +file format elf.*mips.* |
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|
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SYMBOL TABLE: |
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0+0000000 l d \.text 0+0000000 |
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0+0000000 l d \.data 0+0000000 |
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0+0000000 l d \.bss 0+0000000 |
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0+0000000 l d foo 0+0000000 |
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0+0000000 l d \.reginfo 0+0000000 |
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0+0000000 l d \.mdebug 0+0000000 |
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0+0000002 l \.text 0+0000000 0xf0 l1 |
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0+0000004 l \.text 0+0000000 0xf0 L1.1 |
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0+0000000 \*UND\* 0+0000000 g1 |
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|
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|
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RELOCATION RECORDS FOR \[foo\]: |
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OFFSET TYPE VALUE |
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0+0000000 R_MIPS_32 l1 |
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0+0000004 R_MIPS_32 l1 |
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0+0000008 R_MIPS_32 L1.1 |
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0+000000c R_MIPS_32 L1.1 |
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0+0000010 R_MIPS_32 g1 |
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0+0000014 R_MIPS_32 g1 |
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|
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|
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Contents of section \.text: |
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0000 65006500 65006500 .* |
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Contents of section \.data: |
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Contents of section \.reginfo: |
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0000 00000001 00000000 00000000 00000000 .* |
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0010 00000000 00000000 .* |
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Contents of section \.mdebug: |
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#... |
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Contents of section foo: |
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0000 00000000 00000008 00000000 00000003 .* |
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0010 00000000 00000008 .* |
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@ -0,0 +1,13 @@ |
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.set noreorder |
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.text |
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nop |
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l1: nop |
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1: nop |
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nop |
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.section "foo" |
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.word l1 |
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.word l1+8 |
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.word 1b |
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.word 1b+3 |
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.word g1 |
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.word g1+8 |
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@ -0,0 +1,33 @@ |
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#objdump: -rst -mips16 |
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#name: MIPS16 reloc 2 |
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#as: -mips16 |
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# Check MIPS16 reloc processing |
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.*: +file format elf.*mips.* |
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|
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SYMBOL TABLE: |
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0+0000000 l d \.text 0+0000000 |
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0+0000000 l d \.data 0+0000000 |
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0+0000000 l d \.bss 0+0000000 |
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0+0000000 l d foo 0+0000000 |
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0+0000000 l d \.reginfo 0+0000000 |
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0+0000000 l d \.mdebug 0+0000000 |
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0+0000002 l \.text 0+0000000 0xf0 l1 |
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|
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|
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RELOCATION RECORDS FOR \[foo\]: |
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OFFSET TYPE VALUE |
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0+0000000 R_MIPS_32 l1 |
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|
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Contents of section \.text: |
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0000 65006500 .* |
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Contents of section \.data: |
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Contents of section \.reginfo: |
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0000 00000001 00000000 00000000 00000000 .* |
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0010 00000000 00000000 .* |
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Contents of section \.mdebug: |
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#... |
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Contents of section foo: |
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0000 00000003 .* |
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@ -0,0 +1,6 @@ |
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.set noreorder |
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.text |
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nop |
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l1: nop |
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.section "foo" |
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.word l1+3 |
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Loading…
Reference in new issue