cf61b7473a
Structions with R_X86_64_GOTTPOFF relocation must be encoded with REX prefix even if it isn't required by destination register. Otherwise linker can't safely perform IE -> LE optimization. bfd/ PR ld/17482 * elf64-x86-64.c (elf_x86_64_relocate_section): Update comments for IE->LE transition. gas/ PR ld/17482 * config/tc-i386.c (output_insn): Add a dummy REX_OPCODE prefix for structions with R_X86_64_GOTTPOFF relocation for x32 if needed. gas/testsuite/ PR ld/17482 * gas/i386/ilp32/x32-tls.d: New file. * gas/i386/ilp32/x32-tls.s: Likewise. ld/testsuite/ PR ld/17482 * ld-x86-64/tlsie4.dd: Updated.
18 lines
563 B
Text
18 lines
563 B
Text
#source: tlsie4.s
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#as: --x32
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#ld: -melf32_x86_64 tmpdir/tlsie4
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#objdump: -drw
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#target: x86_64-*-linux*
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.*: +file format .*
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Disassembly of section .text:
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[a-f0-9]+ <_start>:
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[ ]*[a-f0-9]+: 40 c7 c0 fc ff ff ff rex mov \$0xfffffffc,%eax
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[ ]*[a-f0-9]+: 40 8d 80 fc ff ff ff rex lea -0x4\(%rax\),%eax
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[ ]*[a-f0-9]+: 41 c7 c0 fc ff ff ff mov \$0xfffffffc,%r8d
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[ ]*[a-f0-9]+: 45 8d 80 fc ff ff ff lea -0x4\(%r8\),%r8d
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[ ]*[a-f0-9]+: 41 c7 c4 fc ff ff ff mov \$0xfffffffc,%r12d
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[ ]*[a-f0-9]+: 41 81 c4 fc ff ff ff add \$0xfffffffc,%r12d
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#pass
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