old-cross-binutils/ld/testsuite/ld-x86-64/load1b-nacl.d

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Add "-z call-nop=PADDING" option to ld The ld linker can transform indirect call to a locally defined function, foo, via its GOT slot, to either "NOP call foo" or "call foo NOP" where NOP is a 1-byte NOP padding. This patch adds a "-z call-nop=PADDING" option to x86 ld to control 1-byte NOP padding for x86 call instruction. PADDING is one of prefix-addr, prefix-nop, suffix-nop, prefix-NUMBER or suffix-NUMBER. bfd/ * elf32-i386.c (elf_i386_convert_load): Use call_nop_byte and check call_nop_as_suffix for 1-byte NOP padding to pad call. * elf64-x86-64.c (elf_x86_64_convert_load): Likewise. include/ * bfdlink.h (bfd_link_info): Add call_nop_as_suffix and call_nop_byte. ld/ * ld/ld.texinfo: Document "-z call-nop=PADDING" option. * emulparams/call_nop.sh: New file. * emulparams/elf_i386_be.sh: Source ${srcdir}/emulparams/call_nop.sh. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set link_info.call_nop_byte if $CALL_NOP_BYTE isn't empty. ld/testsuite/ * ld-i386/call3.s: New file. * ld-i386/call3a.d: Likewise. * ld-i386/call3b.d: Likewise. * ld-i386/call3c.d: Likewise. * ld-i386/call3d.d: Likewise. * ld-i386/call3e.d: Likewise. * ld-i386/call3f.d: Likewise. * ld-i386/call3g.d: Likewise. * ld-i386/call3h.d: Likewise. * ld-i386/load1-nacl.d: Likewise. * ld-x86-64/call1.s: Likewise. * ld-x86-64/call1a.d: Likewise. * ld-x86-64/call1b.d: Likewise. * ld-x86-64/call1c.d: Likewise. * ld-x86-64/call1d.d: Likewise. * ld-x86-64/call1e.d: Likewise. * ld-x86-64/call1f.d: Likewise. * ld-x86-64/call1g.d: Likewise. * ld-x86-64/call1h.d: Likewise. * ld-x86-64/call1i.d: Likewise. * ld-x86-64/load1a-nacl.d: Likewise. * ld-x86-64/load1b-nacl.d: Likewise. * ld-x86-64/load1c-nacl.d: Likewise. * ld-x86-64/load1d-nacl.d: Likewise.
2015-10-22 11:53:04 +00:00
#source: load1.s
#as: --x32
#ld: -melf32_x86_64
#objdump: -dw --sym
#target: x86_64-*-nacl*
.*: +file format .*
SYMBOL TABLE:
#...
1003008c l O .data 0+1 bar
#...
1003008d g O .data 0+1 foo
#...
Disassembly of section .text:
0+20000 <_start>:
[ ]*[a-f0-9]+: 81 d0 8c 00 03 10 adc \$0x1003008c,%eax
[ ]*[a-f0-9]+: 81 c3 8c 00 03 10 add \$0x1003008c,%ebx
[ ]*[a-f0-9]+: 81 e1 8c 00 03 10 and \$0x1003008c,%ecx
[ ]*[a-f0-9]+: 81 fa 8c 00 03 10 cmp \$0x1003008c,%edx
[ ]*[a-f0-9]+: 81 ce 8c 00 03 10 or \$0x1003008c,%esi
[ ]*[a-f0-9]+: 81 df 8c 00 03 10 sbb \$0x1003008c,%edi
[ ]*[a-f0-9]+: 81 ed 8c 00 03 10 sub \$0x1003008c,%ebp
[ ]*[a-f0-9]+: 41 81 f0 8c 00 03 10 xor \$0x1003008c,%r8d
[ ]*[a-f0-9]+: 41 f7 c7 8c 00 03 10 test \$0x1003008c,%r15d
[ ]*[a-f0-9]+: 48 81 d0 8c 00 03 10 adc \$0x1003008c,%rax
[ ]*[a-f0-9]+: 48 81 c3 8c 00 03 10 add \$0x1003008c,%rbx
[ ]*[a-f0-9]+: 48 81 e1 8c 00 03 10 and \$0x1003008c,%rcx
[ ]*[a-f0-9]+: 48 81 fa 8c 00 03 10 cmp \$0x1003008c,%rdx
[ ]*[a-f0-9]+: 48 81 cf 8c 00 03 10 or \$0x1003008c,%rdi
[ ]*[a-f0-9]+: 48 81 de 8c 00 03 10 sbb \$0x1003008c,%rsi
[ ]*[a-f0-9]+: 48 81 ed 8c 00 03 10 sub \$0x1003008c,%rbp
[ ]*[a-f0-9]+: 49 81 f0 8c 00 03 10 xor \$0x1003008c,%r8
[ ]*[a-f0-9]+: 49 f7 c7 8c 00 03 10 test \$0x1003008c,%r15
[ ]*[a-f0-9]+: 81 d0 8d 00 03 10 adc \$0x1003008d,%eax
[ ]*[a-f0-9]+: 81 c3 8d 00 03 10 add \$0x1003008d,%ebx
[ ]*[a-f0-9]+: 81 e1 8d 00 03 10 and \$0x1003008d,%ecx
[ ]*[a-f0-9]+: 81 fa 8d 00 03 10 cmp \$0x1003008d,%edx
[ ]*[a-f0-9]+: 81 ce 8d 00 03 10 or \$0x1003008d,%esi
[ ]*[a-f0-9]+: 81 df 8d 00 03 10 sbb \$0x1003008d,%edi
[ ]*[a-f0-9]+: 81 ed 8d 00 03 10 sub \$0x1003008d,%ebp
[ ]*[a-f0-9]+: 41 81 f0 8d 00 03 10 xor \$0x1003008d,%r8d
[ ]*[a-f0-9]+: 41 f7 c7 8d 00 03 10 test \$0x1003008d,%r15d
[ ]*[a-f0-9]+: 48 81 d0 8d 00 03 10 adc \$0x1003008d,%rax
[ ]*[a-f0-9]+: 48 81 c3 8d 00 03 10 add \$0x1003008d,%rbx
[ ]*[a-f0-9]+: 48 81 e1 8d 00 03 10 and \$0x1003008d,%rcx
[ ]*[a-f0-9]+: 48 81 fa 8d 00 03 10 cmp \$0x1003008d,%rdx
[ ]*[a-f0-9]+: 48 81 cf 8d 00 03 10 or \$0x1003008d,%rdi
[ ]*[a-f0-9]+: 48 81 de 8d 00 03 10 sbb \$0x1003008d,%rsi
[ ]*[a-f0-9]+: 48 81 ed 8d 00 03 10 sub \$0x1003008d,%rbp
[ ]*[a-f0-9]+: 49 81 f0 8d 00 03 10 xor \$0x1003008d,%r8
[ ]*[a-f0-9]+: 49 f7 c7 8d 00 03 10 test \$0x1003008d,%r15
#pass