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* elf64-x86-64.c (elf64_x86_64_relocate_section): Change TLSGD sequence and its transitions. ld/testsuite/ * ld-x86-64/tlspic1.s: Change TLSGD sequences. * ld-x86-64/tlsbinpic.s: Likewise. * ld-x86-64/tlspic.dd: Adjust.
This commit is contained in:
Jakub Jelinek
parent
a45bb67df2
commit
abcf1d5247
@ -1,3 +1,8 @@
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2002-10-01 Jakub Jelinek <jakub@redhat.com>
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* elf64-x86-64.c (elf64_x86_64_relocate_section): Change TLSGD
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sequence and its transitions.
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2002-10-01 Jakub Jelinek <jakub@redhat.com>
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* elf32-i386.c (elf_i386_relocate_section): Resolve R_386_TLS_LDO_32
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@ -2224,31 +2224,32 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section,
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if (ELF64_R_TYPE (rel->r_info) == R_X86_64_TLSGD)
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{
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unsigned int i;
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static unsigned char tlsgd[7]
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= { 0x66, 0x66, 0x66, 0x66, 0x48, 0x8d, 0x3d };
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static unsigned char tlsgd[8]
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= { 0x66, 0x48, 0x8d, 0x3d, 0x66, 0x66, 0x48, 0xe8 };
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/* GD->LE transition.
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.long 0x66666666; leaq foo@tlsgd(%rip), %rdi
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callq __tls_get_addr@plt
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.byte 0x66; leaq foo@tlsgd(%rip), %rdi
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.word 0x6666; rex64; call __tls_get_addr@plt
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Change it into:
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movq %fs:0, %rax
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leaq foo@tpoff(%rax), %rax */
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BFD_ASSERT (rel->r_offset >= 7);
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for (i = 0; i < 7; i++)
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BFD_ASSERT (rel->r_offset >= 4);
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for (i = 0; i < 4; i++)
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BFD_ASSERT (bfd_get_8 (input_bfd,
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contents + rel->r_offset - 7 + i)
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contents + rel->r_offset - 4 + i)
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== tlsgd[i]);
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BFD_ASSERT (rel->r_offset + 9 <= input_section->_raw_size);
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BFD_ASSERT (bfd_get_8 (input_bfd,
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contents + rel->r_offset + 4)
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== 0xe8);
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BFD_ASSERT (rel->r_offset + 12 <= input_section->_raw_size);
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for (i = 0; i < 4; i++)
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BFD_ASSERT (bfd_get_8 (input_bfd,
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contents + rel->r_offset + 4 + i)
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== tlsgd[i+4]);
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BFD_ASSERT (rel + 1 < relend);
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BFD_ASSERT (ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PLT32);
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memcpy (contents + rel->r_offset - 7,
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memcpy (contents + rel->r_offset - 4,
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"\x64\x48\x8b\x04\x25\0\0\0\0\x48\x8d\x80\0\0\0",
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16);
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bfd_put_32 (output_bfd, tpoff (info, relocation),
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contents + rel->r_offset + 5);
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contents + rel->r_offset + 8);
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/* Skip R_X86_64_PLT32. */
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rel++;
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continue;
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@ -2397,27 +2398,28 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section,
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else
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{
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unsigned int i;
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static unsigned char tlsgd[7]
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= { 0x66, 0x66, 0x66, 0x66, 0x48, 0x8d, 0x3d };
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static unsigned char tlsgd[8]
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= { 0x66, 0x48, 0x8d, 0x3d, 0x66, 0x66, 0x48, 0xe8 };
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/* GD->IE transition.
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.long 0x66666666; leaq foo@tlsgd(%rip), %rdi
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callq __tls_get_addr@plt
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.byte 0x66; leaq foo@tlsgd(%rip), %rdi
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.word 0x6666; rex64; call __tls_get_addr@plt
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Change it into:
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movq %fs:0, %rax
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addq foo@gottpoff(%rip), %rax */
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BFD_ASSERT (rel->r_offset >= 7);
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for (i = 0; i < 7; i++)
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BFD_ASSERT (rel->r_offset >= 4);
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for (i = 0; i < 4; i++)
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BFD_ASSERT (bfd_get_8 (input_bfd,
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contents + rel->r_offset - 7 + i)
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contents + rel->r_offset - 4 + i)
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== tlsgd[i]);
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BFD_ASSERT (rel->r_offset + 9 <= input_section->_raw_size);
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BFD_ASSERT (bfd_get_8 (input_bfd,
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contents + rel->r_offset + 4)
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== 0xe8);
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BFD_ASSERT (rel->r_offset + 12 <= input_section->_raw_size);
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for (i = 0; i < 4; i++)
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BFD_ASSERT (bfd_get_8 (input_bfd,
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contents + rel->r_offset + 4 + i)
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== tlsgd[i+4]);
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BFD_ASSERT (rel + 1 < relend);
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BFD_ASSERT (ELF64_R_TYPE (rel[1].r_info) == R_X86_64_PLT32);
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memcpy (contents + rel->r_offset - 7,
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memcpy (contents + rel->r_offset - 4,
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"\x64\x48\x8b\x04\x25\0\0\0\0\x48\x03\x05\0\0\0",
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16);
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@ -2426,9 +2428,9 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section,
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- rel->r_offset
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- input_section->output_section->vma
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- input_section->output_offset
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- 9);
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- 12);
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bfd_put_32 (output_bfd, relocation,
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contents + rel->r_offset + 5);
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contents + rel->r_offset + 8);
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/* Skip R_X86_64_PLT32. */
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rel++;
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continue;
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@ -1,3 +1,9 @@
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2002-10-01 Jakub Jelinek <jakub@redhat.com>
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* ld-x86-64/tlspic1.s: Change TLSGD sequences.
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* ld-x86-64/tlsbinpic.s: Likewise.
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* ld-x86-64/tlspic.dd: Adjust.
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2002-10-01 Jakub Jelinek <jakub@redhat.com>
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* ld-i386/i386.exp: Add tlsg test.
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@ -40,33 +40,43 @@ fn2:
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movq %rsp, %rbp
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/* GD -> IE because variable is not defined in executable */
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.long 0x66666666
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.byte 0x66
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leaq sG1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> IE because variable is not defined in executable where
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the variable is referenced through IE too */
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.long 0x66666666
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.byte 0x66
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leaq sG2@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> LE with global variable defined in executable */
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.long 0x66666666
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.byte 0x66
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leaq sg1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> LE with local variable defined in executable */
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.long 0x66666666
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.byte 0x66
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leaq sl1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> LE with hidden variable defined in executable */
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.long 0x66666666
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.byte 0x66
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leaq sh1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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@ -17,10 +17,12 @@ Disassembly of section .text:
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+1006: 90[ ]+nop *
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+1007: 90[ ]+nop *
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# GD
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+1008: 66 66 66 66 48 8d 3d[ ]+lea 1053165\(%rip\),%rdi +# 102200 <_GLOBAL_OFFSET_TABLE_\+0x70>
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+100f: ed 11 10 00 *
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+1008: 66 48 8d 3d f0 11 10[ ]+lea 1053168\(%rip\),%rdi +# 102200 <_GLOBAL_OFFSET_TABLE_\+0x70>
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+100f: 00 *
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# -> R_X86_64_DTPMOD64 sg1
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+1013: e8 68 f6 ff ff[ ]+callq [0-9a-f]+ <.*>
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+1010: 66[ ]+data16
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+1011: 66[ ]+data16
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+1012: 48 e8 68 f6 ff ff[ ]+rex64 callq [0-9a-f]+ <.*>
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# -> R_X86_64_JUMP_SLOT __tls_get_addr
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+1018: 90[ ]+nop *
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+1019: 90[ ]+nop *
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@ -36,10 +38,12 @@ Disassembly of section .text:
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+102e: 90[ ]+nop *
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+102f: 90[ ]+nop *
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# GD against local variable
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+1030: 66 66 66 66 48 8d 3d[ ]+lea 1053045\(%rip\),%rdi +# 1021b0 <_GLOBAL_OFFSET_TABLE_\+0x20>
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+1037: 75 11 10 00 *
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+1030: 66 48 8d 3d 78 11 10[ ]+lea 1053048\(%rip\),%rdi +# 1021b0 <_GLOBAL_OFFSET_TABLE_\+0x20>
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+1037: 00 *
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# -> R_X86_64_DTPMOD64 [0 0x2000000000000000]
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+103b: e8 40 f6 ff ff[ ]+callq [0-9a-f]+ <.*>
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+1038: 66[ ]+data16
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+1039: 66[ ]+data16
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+103a: 48 e8 40 f6 ff ff[ ]+rex64 callq [0-9a-f]+ <.*>
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# -> R_X86_64_JUMP_SLOT __tls_get_addr
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+1040: 90[ ]+nop *
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+1041: 90[ ]+nop *
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@ -55,10 +59,12 @@ Disassembly of section .text:
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+1056: 90[ ]+nop *
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+1057: 90[ ]+nop *
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# GD against hidden and local variable
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+1058: 66 66 66 66 48 8d 3d[ ]+lea 1053125\(%rip\),%rdi +# 102228 <_GLOBAL_OFFSET_TABLE_\+0x98>
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+105f: c5 11 10 00 *
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+1058: 66 48 8d 3d c8 11 10[ ]+lea 1053128\(%rip\),%rdi +# 102228 <_GLOBAL_OFFSET_TABLE_\+0x98>
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+105f: 00 *
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# -> R_X86_64_DTPMOD64 [0 0x4000000000000000]
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+1063: e8 18 f6 ff ff[ ]+callq [0-9a-f]+ <.*>
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+1060: 66[ ]+data16
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+1061: 66[ ]+data16
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+1062: 48 e8 18 f6 ff ff[ ]+rex64 callq [0-9a-f]+ <.*>
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# -> R_X86_64_JUMP_SLOT __tls_get_addr
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+1068: 90[ ]+nop *
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+1069: 90[ ]+nop *
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@ -74,10 +80,12 @@ Disassembly of section .text:
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+107e: 90[ ]+nop *
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+107f: 90[ ]+nop *
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# GD against hidden but not local variable
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+1080: 66 66 66 66 48 8d 3d[ ]+lea 1053013\(%rip\),%rdi +# 1021e0 <_GLOBAL_OFFSET_TABLE_\+0x50>
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+1087: 55 11 10 00 *
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+1080: 66 48 8d 3d 58 11 10[ ]+lea 1053016\(%rip\),%rdi +# 1021e0 <_GLOBAL_OFFSET_TABLE_\+0x50>
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+1087: 00 *
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# -> R_X86_64_DTPMOD64 [0 0x6000000000000000]
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+108b: e8 f0 f5 ff ff[ ]+callq [0-9a-f]+ <.*>
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+1088: 66[ ]+data16
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+1089: 66[ ]+data16
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+108a: 48 e8 f0 f5 ff ff[ ]+rex64 callq [0-9a-f]+ <.*>
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# -> R_X86_64_JUMP_SLOT __tls_get_addr
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+1090: 90[ ]+nop *
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+1091: 90[ ]+nop *
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@ -41,52 +41,68 @@ fn1:
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nop;nop;nop;nop
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/* GD */
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.long 0x66666666
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.byte 0x66
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leaq sg1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> IE because variable is referenced through IE too */
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.long 0x66666666
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.byte 0x66
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leaq sg2@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD against local variable */
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.long 0x66666666
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.byte 0x66
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leaq sl1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> IE against local variable referenced through IE too */
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.long 0x66666666
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.byte 0x66
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leaq sl2@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD against hidden and local variable */
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.long 0x66666666
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.byte 0x66
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leaq sh1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> IE against hidden and local variable referenced through
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IE too */
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.long 0x66666666
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.byte 0x66
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leaq sh2@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD against hidden but not local variable */
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.long 0x66666666
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.byte 0x66
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leaq sH1@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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/* GD -> IE against hidden but not local variable referenced through
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IE too */
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.long 0x66666666
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.byte 0x66
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leaq sH2@tlsgd(%rip), %rdi
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.word 0x6666
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rex64
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call __tls_get_addr@plt
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nop;nop;nop;nop
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