binutils-gdb/ld/testsuite/ld-x86-64/tlsld4.dd

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Support x86-64 TLS code sequences without PLT We can generate x86-64 TLS code sequences for general and local dynamic models without PLT, which uses indirect call via GOT: call *__tls_get_addr@GOTPCREL(%rip) instead of direct call: call __tls_get_addr[@PLT] Since direct call is 4-byte long and indirect call, is 5-byte long, the extra one byte must be handled properly. For general dynamic model, one 0x66 prefix before call instruction is removed to make room for indirect call. For local dynamic model, we simply use 5-byte indirect call. TLS linker optimization is updated to recognize new instruction patterns. For local dynamic model to local exec model transition, we generate 4 0x66 prefixes, instead of 3, before mov instruction in 64-bit and generate a 5-byte nop, instead of 4-byte, before mov instruction in 32-bit. Since linker may convert call *__tls_get_addr@GOTPCREL(%rip) to addr32 call __tls_get_addr when producing static executable, both patterns are recognized. bfd/ * elf64-x86-64.c (elf_x86_64_link_hash_entry): Add tls_get_addr. (elf_x86_64_link_hash_newfunc): Initialize tls_get_addr to 2. (elf_x86_64_check_tls_transition): Check indirect call and direct call with the addr32 prefix for general and local dynamic models. Set the tls_get_addr feild. (elf_x86_64_convert_load_reloc): Always use addr32 prefix for indirect __tls_get_addr call via GOT. (elf_x86_64_relocate_section): Handle GD->LE, GD->IE and LD->LE transitions with indirect call and direct call with the addr32 prefix. ld/ * testsuite/ld-x86-64/pass.out: New file. * testsuite/ld-x86-64/tls-def1.c: Likewise. * testsuite/ld-x86-64/tls-gd1.S: Likewise. * testsuite/ld-x86-64/tls-ld1.S: Likewise. * testsuite/ld-x86-64/tls-main1.c: Likewise. * testsuite/ld-x86-64/tls.exp: Likewise. * testsuite/ld-x86-64/tlsbin2-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsbin2.dd: Likewise. * testsuite/ld-x86-64/tlsbin2.rd: Likewise. * testsuite/ld-x86-64/tlsbin2.sd: Likewise. * testsuite/ld-x86-64/tlsbin2.td: Likewise. * testsuite/ld-x86-64/tlsbinpic2.s: Likewise. * testsuite/ld-x86-64/tlsgd10.dd: Likewise. * testsuite/ld-x86-64/tlsgd10.s: Likewise. * testsuite/ld-x86-64/tlsgd11.dd: Likewise. * testsuite/ld-x86-64/tlsgd11.s: Likewise. * testsuite/ld-x86-64/tlsgd12.d: Likewise. * testsuite/ld-x86-64/tlsgd12.s: Likewise. * testsuite/ld-x86-64/tlsgd13.d: Likewise. * testsuite/ld-x86-64/tlsgd13.s: Likewise. * testsuite/ld-x86-64/tlsgd14.dd: Likewise. * testsuite/ld-x86-64/tlsgd14.s: Likewise. * testsuite/ld-x86-64/tlsgd5c.s: Likewise. * testsuite/ld-x86-64/tlsgd6c.s: Likewise. * testsuite/ld-x86-64/tlsgd9.dd: Likewise. * testsuite/ld-x86-64/tlsgd9.s: Likewise. * testsuite/ld-x86-64/tlsld4.dd: Likewise. * testsuite/ld-x86-64/tlsld4.s: Likewise. * testsuite/ld-x86-64/tlsld5.dd: Likewise. * testsuite/ld-x86-64/tlsld5.s: Likewise. * testsuite/ld-x86-64/tlsld6.dd: Likewise. * testsuite/ld-x86-64/tlsld6.s: Likewise. * testsuite/ld-x86-64/tlspic2-nacl.rd: Likewise. * testsuite/ld-x86-64/tlspic2.dd: Likewise. * testsuite/ld-x86-64/tlspic2.rd: Likewise. * testsuite/ld-x86-64/tlspic2.sd: Likewise. * testsuite/ld-x86-64/tlspic2.td: Likewise. * testsuite/ld-x86-64/tlspic3.s: Likewise. * testsuite/ld-x86-64/tlspie2.s: Likewise. * testsuite/ld-x86-64/tlspie2a.d: Likewise. * testsuite/ld-x86-64/tlspie2b.d: Likewise. * testsuite/ld-x86-64/tlspie2c.d: Likewise. * testsuite/ld-x86-64/tlsgd5.dd: Updated. * testsuite/ld-x86-64/tlsgd6.dd: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run libtlspic2.so, tlsbin2, tlsgd5b, tlsgd6b, tlsld4, tlsld5, tlsld6, tlsgd9, tlsgd10, tlsgd11, tlsgd14, tlsgd12, tlsgd13, tlspie2a, tlspie2b and tlspie2c.
2016-06-07 02:06:55 +08:00
#source: tlsld4.s
#as: --64
#ld: -melf_x86_64 tmpdir/tlsld4
#objdump: -drw
#target: x86_64-*-linux*
.*: +file format .*
Disassembly of section .text:
[a-f0-9]+ <_start>:
[ ]*[a-f0-9]+: 49 bb ([0-9a-f]{2} ){8} movabs \$0x[0-9a-f]+,%r11
[ ]*[a-f0-9]+: 41 57 push %r15
[ ]*[a-f0-9]+: 41 57 push %r15
[ ]*[a-f0-9]+: 4c 8d 3d eb ff ff ff lea -0x15\(%rip\),%r15 # [0-9a-f]+ <_start>
[ ]*[a-f0-9]+: 4d 01 df add %r11,%r15
x86: Ignore CS/DS/ES/SS segment-override prefixes in 64-bit mode "In 64-bit mode, the CS, DS, ES, and SS segment-override prefixes have no effect. These four prefixes are not treated as segment-override prefixes for the purposes of multiple-prefix rules. Instead, they are treated as null prefixes." (AMD APM v2). However, objdump disassembles instructions containing those ignored prefixes by still generating that segment override: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 00 00 00 00 Print those segment override prefixes as excessive ones: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 00 00 00 00 which is what they actually are - they have no effect and the decoding hardware ignores them. gas/ 2020-11-14 Borislav Petkov <bp@suse.de> * testsuite/gas/i386/x86-64-segovr.d: Adjust regexes. * testsuite/gas/i386/x86-64-nops.d: Likewise. * testsuite/gas/i386/x86-64-nops-1.d: Likewise. * testsuite/gas/i386/x86-64-nops-1-g64.d: Likewise. * testsuite/gas/i386/x86-64-nops-1-core2.d: Likewise. * testsuite/gas/i386/x86-64-nops-1-k8.d: Likewise. * testsuite/gas/i386/x86-64-nops-2.d: Likewise. * testsuite/gas/i386/x86-64-nops-3.d: Likewise. * testsuite/gas/i386/x86-64-nops-4.d: Likewise. * testsuite/gas/i386/x86-64-nops-4-core2.d: Likewise. * testsuite/gas/i386/x86-64-nops-4-k8.d: Likewise. * testsuite/gas/i386/x86-64-nops-5.d: Likewise. * testsuite/gas/i386/x86-64-nops-5-k8.d: Likewise. * testsuite/gas/i386/x86-64-nops-7.d: Likewise. * testsuite/gas/i386/x86-64-nop-1.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-1a.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-1b.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-1c.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-1d.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-1g.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-2c.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-6.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-7.d: Likewise. * testsuite/gas/i386/x86-64-align-branch-8.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-1-k8.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-1.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-2.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-3.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-4-k8.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-4.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-5-k8.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops-5.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-nops.d:: Likewise. ld/ 2020-11-14 Borislav Petkov <bp@suse.de> * testsuite/ld-x86-64/pe-x86-64-4.od: Adjust regexes. * testsuite/ld-x86-64/tlsld3.dd: Likewise. * testsuite/ld-x86-64/tlsld4.dd: Likewise. opcodes/ 2020-11-14 Borislav Petkov <bp@suse.de> * i386-dis.c (ckprefix): Do not assign active_seg_prefix in 64-bit addressing mode. (NOTRACK_Fixup): Test prefixes for PREFIX_DS, instead of active_seg_prefix.
2020-11-14 22:16:26 +08:00
[ ]*[a-f0-9]+: 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 data16 data16 data16 cs nopw 0x0\(%rax,%rax,1\)
Support x86-64 TLS code sequences without PLT We can generate x86-64 TLS code sequences for general and local dynamic models without PLT, which uses indirect call via GOT: call *__tls_get_addr@GOTPCREL(%rip) instead of direct call: call __tls_get_addr[@PLT] Since direct call is 4-byte long and indirect call, is 5-byte long, the extra one byte must be handled properly. For general dynamic model, one 0x66 prefix before call instruction is removed to make room for indirect call. For local dynamic model, we simply use 5-byte indirect call. TLS linker optimization is updated to recognize new instruction patterns. For local dynamic model to local exec model transition, we generate 4 0x66 prefixes, instead of 3, before mov instruction in 64-bit and generate a 5-byte nop, instead of 4-byte, before mov instruction in 32-bit. Since linker may convert call *__tls_get_addr@GOTPCREL(%rip) to addr32 call __tls_get_addr when producing static executable, both patterns are recognized. bfd/ * elf64-x86-64.c (elf_x86_64_link_hash_entry): Add tls_get_addr. (elf_x86_64_link_hash_newfunc): Initialize tls_get_addr to 2. (elf_x86_64_check_tls_transition): Check indirect call and direct call with the addr32 prefix for general and local dynamic models. Set the tls_get_addr feild. (elf_x86_64_convert_load_reloc): Always use addr32 prefix for indirect __tls_get_addr call via GOT. (elf_x86_64_relocate_section): Handle GD->LE, GD->IE and LD->LE transitions with indirect call and direct call with the addr32 prefix. ld/ * testsuite/ld-x86-64/pass.out: New file. * testsuite/ld-x86-64/tls-def1.c: Likewise. * testsuite/ld-x86-64/tls-gd1.S: Likewise. * testsuite/ld-x86-64/tls-ld1.S: Likewise. * testsuite/ld-x86-64/tls-main1.c: Likewise. * testsuite/ld-x86-64/tls.exp: Likewise. * testsuite/ld-x86-64/tlsbin2-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsbin2.dd: Likewise. * testsuite/ld-x86-64/tlsbin2.rd: Likewise. * testsuite/ld-x86-64/tlsbin2.sd: Likewise. * testsuite/ld-x86-64/tlsbin2.td: Likewise. * testsuite/ld-x86-64/tlsbinpic2.s: Likewise. * testsuite/ld-x86-64/tlsgd10.dd: Likewise. * testsuite/ld-x86-64/tlsgd10.s: Likewise. * testsuite/ld-x86-64/tlsgd11.dd: Likewise. * testsuite/ld-x86-64/tlsgd11.s: Likewise. * testsuite/ld-x86-64/tlsgd12.d: Likewise. * testsuite/ld-x86-64/tlsgd12.s: Likewise. * testsuite/ld-x86-64/tlsgd13.d: Likewise. * testsuite/ld-x86-64/tlsgd13.s: Likewise. * testsuite/ld-x86-64/tlsgd14.dd: Likewise. * testsuite/ld-x86-64/tlsgd14.s: Likewise. * testsuite/ld-x86-64/tlsgd5c.s: Likewise. * testsuite/ld-x86-64/tlsgd6c.s: Likewise. * testsuite/ld-x86-64/tlsgd9.dd: Likewise. * testsuite/ld-x86-64/tlsgd9.s: Likewise. * testsuite/ld-x86-64/tlsld4.dd: Likewise. * testsuite/ld-x86-64/tlsld4.s: Likewise. * testsuite/ld-x86-64/tlsld5.dd: Likewise. * testsuite/ld-x86-64/tlsld5.s: Likewise. * testsuite/ld-x86-64/tlsld6.dd: Likewise. * testsuite/ld-x86-64/tlsld6.s: Likewise. * testsuite/ld-x86-64/tlspic2-nacl.rd: Likewise. * testsuite/ld-x86-64/tlspic2.dd: Likewise. * testsuite/ld-x86-64/tlspic2.rd: Likewise. * testsuite/ld-x86-64/tlspic2.sd: Likewise. * testsuite/ld-x86-64/tlspic2.td: Likewise. * testsuite/ld-x86-64/tlspic3.s: Likewise. * testsuite/ld-x86-64/tlspie2.s: Likewise. * testsuite/ld-x86-64/tlspie2a.d: Likewise. * testsuite/ld-x86-64/tlspie2b.d: Likewise. * testsuite/ld-x86-64/tlspie2c.d: Likewise. * testsuite/ld-x86-64/tlsgd5.dd: Updated. * testsuite/ld-x86-64/tlsgd6.dd: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run libtlspic2.so, tlsbin2, tlsgd5b, tlsgd6b, tlsld4, tlsld5, tlsld6, tlsgd9, tlsgd10, tlsgd11, tlsgd14, tlsgd12, tlsgd13, tlspie2a, tlspie2b and tlspie2c.
2016-06-07 02:06:55 +08:00
[ ]*[a-f0-9]+: 64 48 8b 04 25 00 00 00 00 mov %fs:0x0,%rax
[ ]*[a-f0-9]+: 8b 80 fc ff ff ff mov -0x4\(%rax\),%eax
[ ]*[a-f0-9]+: 41 5f pop %r15
[ ]*[a-f0-9]+: 41 5f pop %r15
[ ]*[a-f0-9]+: c3 ret *
Support x86-64 TLS code sequences without PLT We can generate x86-64 TLS code sequences for general and local dynamic models without PLT, which uses indirect call via GOT: call *__tls_get_addr@GOTPCREL(%rip) instead of direct call: call __tls_get_addr[@PLT] Since direct call is 4-byte long and indirect call, is 5-byte long, the extra one byte must be handled properly. For general dynamic model, one 0x66 prefix before call instruction is removed to make room for indirect call. For local dynamic model, we simply use 5-byte indirect call. TLS linker optimization is updated to recognize new instruction patterns. For local dynamic model to local exec model transition, we generate 4 0x66 prefixes, instead of 3, before mov instruction in 64-bit and generate a 5-byte nop, instead of 4-byte, before mov instruction in 32-bit. Since linker may convert call *__tls_get_addr@GOTPCREL(%rip) to addr32 call __tls_get_addr when producing static executable, both patterns are recognized. bfd/ * elf64-x86-64.c (elf_x86_64_link_hash_entry): Add tls_get_addr. (elf_x86_64_link_hash_newfunc): Initialize tls_get_addr to 2. (elf_x86_64_check_tls_transition): Check indirect call and direct call with the addr32 prefix for general and local dynamic models. Set the tls_get_addr feild. (elf_x86_64_convert_load_reloc): Always use addr32 prefix for indirect __tls_get_addr call via GOT. (elf_x86_64_relocate_section): Handle GD->LE, GD->IE and LD->LE transitions with indirect call and direct call with the addr32 prefix. ld/ * testsuite/ld-x86-64/pass.out: New file. * testsuite/ld-x86-64/tls-def1.c: Likewise. * testsuite/ld-x86-64/tls-gd1.S: Likewise. * testsuite/ld-x86-64/tls-ld1.S: Likewise. * testsuite/ld-x86-64/tls-main1.c: Likewise. * testsuite/ld-x86-64/tls.exp: Likewise. * testsuite/ld-x86-64/tlsbin2-nacl.rd: Likewise. * testsuite/ld-x86-64/tlsbin2.dd: Likewise. * testsuite/ld-x86-64/tlsbin2.rd: Likewise. * testsuite/ld-x86-64/tlsbin2.sd: Likewise. * testsuite/ld-x86-64/tlsbin2.td: Likewise. * testsuite/ld-x86-64/tlsbinpic2.s: Likewise. * testsuite/ld-x86-64/tlsgd10.dd: Likewise. * testsuite/ld-x86-64/tlsgd10.s: Likewise. * testsuite/ld-x86-64/tlsgd11.dd: Likewise. * testsuite/ld-x86-64/tlsgd11.s: Likewise. * testsuite/ld-x86-64/tlsgd12.d: Likewise. * testsuite/ld-x86-64/tlsgd12.s: Likewise. * testsuite/ld-x86-64/tlsgd13.d: Likewise. * testsuite/ld-x86-64/tlsgd13.s: Likewise. * testsuite/ld-x86-64/tlsgd14.dd: Likewise. * testsuite/ld-x86-64/tlsgd14.s: Likewise. * testsuite/ld-x86-64/tlsgd5c.s: Likewise. * testsuite/ld-x86-64/tlsgd6c.s: Likewise. * testsuite/ld-x86-64/tlsgd9.dd: Likewise. * testsuite/ld-x86-64/tlsgd9.s: Likewise. * testsuite/ld-x86-64/tlsld4.dd: Likewise. * testsuite/ld-x86-64/tlsld4.s: Likewise. * testsuite/ld-x86-64/tlsld5.dd: Likewise. * testsuite/ld-x86-64/tlsld5.s: Likewise. * testsuite/ld-x86-64/tlsld6.dd: Likewise. * testsuite/ld-x86-64/tlsld6.s: Likewise. * testsuite/ld-x86-64/tlspic2-nacl.rd: Likewise. * testsuite/ld-x86-64/tlspic2.dd: Likewise. * testsuite/ld-x86-64/tlspic2.rd: Likewise. * testsuite/ld-x86-64/tlspic2.sd: Likewise. * testsuite/ld-x86-64/tlspic2.td: Likewise. * testsuite/ld-x86-64/tlspic3.s: Likewise. * testsuite/ld-x86-64/tlspie2.s: Likewise. * testsuite/ld-x86-64/tlspie2a.d: Likewise. * testsuite/ld-x86-64/tlspie2b.d: Likewise. * testsuite/ld-x86-64/tlspie2c.d: Likewise. * testsuite/ld-x86-64/tlsgd5.dd: Updated. * testsuite/ld-x86-64/tlsgd6.dd: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run libtlspic2.so, tlsbin2, tlsgd5b, tlsgd6b, tlsld4, tlsld5, tlsld6, tlsgd9, tlsgd10, tlsgd11, tlsgd14, tlsgd12, tlsgd13, tlspie2a, tlspie2b and tlspie2c.
2016-06-07 02:06:55 +08:00
#pass