binutils-gdb/ld/testsuite/ld-x86-64/ibt-plt-3c-x32.d
Jan Beulich 36938cabf0 x86: avoid attaching suffixes to unambiguous insns
"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.
2020-07-15 08:53:55 +02:00

44 lines
1.6 KiB
D

#source: ibt-plt-3.s
#as: --x32
#ld: -shared -m elf32_x86_64 -z ibt --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code
#objdump: -dw
.*: +file format .*
Disassembly of section .plt:
[a-f0-9]+ <.plt>:
+[a-f0-9]+: ff 35 ([0-9a-f]{2} ){4}[ ]+push 0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <_GLOBAL_OFFSET_TABLE_\+0x8>
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmp \*0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <_GLOBAL_OFFSET_TABLE_\+0x10>
+[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%rax\)
+[a-f0-9]+: f3 0f 1e fa endbr64
+[a-f0-9]+: 68 00 00 00 00 push \$0x0
+[a-f0-9]+: e9 e2 ff ff ff jmp [a-f0-9]+ <.plt>
+[a-f0-9]+: 66 90 xchg %ax,%ax
+[a-f0-9]+: f3 0f 1e fa endbr64
+[a-f0-9]+: 68 01 00 00 00 push \$0x1
+[a-f0-9]+: e9 d2 ff ff ff jmp [a-f0-9]+ <.plt>
+[a-f0-9]+: 66 90 xchg %ax,%ax
Disassembly of section .plt.sec:
[a-f0-9]+ <bar1@plt>:
+[a-f0-9]+: f3 0f 1e fa endbr64
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmp \*0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <bar1>
+[a-f0-9]+: 66 0f 1f 44 00 00 nopw 0x0\(%rax,%rax,1\)
[a-f0-9]+ <bar2@plt>:
+[a-f0-9]+: f3 0f 1e fa endbr64
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmp \*0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <bar2>
+[a-f0-9]+: 66 0f 1f 44 00 00 nopw 0x0\(%rax,%rax,1\)
Disassembly of section .text:
[a-f0-9]+ <foo>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: e8 e7 ff ff ff call [a-f0-9]+ <bar2@plt>
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: e9 ce ff ff ff jmp [a-f0-9]+ <bar1@plt>
#pass