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https://sourceware.org/git/binutils-gdb.git
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36938cabf0
"Unambiguous" is is in particular taking as reference the assembler, which also accepts certain insns - despite them allowing for varying operand size, and hence in principle being ambiguous - without any suffix. For example, from the very beginning of the life of x86-64 I had trouble understanding why a plain and simple RET had to be printed as RETQ. In case someone really used the 16-bit form, RETW disambiguates the two quite fine.
56 lines
2.1 KiB
Makefile
56 lines
2.1 KiB
Makefile
#source: bnd-branch-1.s
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#as: --64 -mx86-used-note=no
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#ld: -z now -shared -melf_x86_64 -z bndplt --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code
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#objdump: -dw
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.*: +file format .*
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Disassembly of section .plt:
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0+230 <.plt>:
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+[a-f0-9]+: ff 35 a2 01 20 00 push 0x2001a2\(%rip\) # 2003d8 <_GLOBAL_OFFSET_TABLE_\+0x8>
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+[a-f0-9]+: f2 ff 25 a3 01 20 00 bnd jmp \*0x2001a3\(%rip\) # 2003e0 <_GLOBAL_OFFSET_TABLE_\+0x10>
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+[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
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+[a-f0-9]+: 68 00 00 00 00 push \$0x0
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+[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 230 <.plt>
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+[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
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+[a-f0-9]+: 68 01 00 00 00 push \$0x1
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+[a-f0-9]+: f2 e9 d5 ff ff ff bnd jmp 230 <.plt>
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+[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
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+[a-f0-9]+: 68 02 00 00 00 push \$0x2
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+[a-f0-9]+: f2 e9 c5 ff ff ff bnd jmp 230 <.plt>
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+[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
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+[a-f0-9]+: 68 03 00 00 00 push \$0x3
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+[a-f0-9]+: f2 e9 b5 ff ff ff bnd jmp 230 <.plt>
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+[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
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Disassembly of section .plt.sec:
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0+280 <foo2@plt>:
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+[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 2003e8 <foo2>
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+[a-f0-9]+: 90 nop
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0+288 <foo3@plt>:
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+[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 2003f0 <foo3>
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+[a-f0-9]+: 90 nop
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0+290 <foo1@plt>:
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+[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 2003f8 <foo1>
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+[a-f0-9]+: 90 nop
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0+298 <foo4@plt>:
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+[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 200400 <foo4>
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+[a-f0-9]+: 90 nop
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Disassembly of section .text:
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0+2a0 <_start>:
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+[a-f0-9]+: f2 e9 ea ff ff ff bnd jmp 290 <foo1@plt>
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+[a-f0-9]+: e8 d5 ff ff ff call 280 <foo2@plt>
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+[a-f0-9]+: e9 d8 ff ff ff jmp 288 <foo3@plt>
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+[a-f0-9]+: e8 e3 ff ff ff call 298 <foo4@plt>
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+[a-f0-9]+: f2 e8 cd ff ff ff bnd call 288 <foo3@plt>
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+[a-f0-9]+: e9 d8 ff ff ff jmp 298 <foo4@plt>
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#pass
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