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| author | Jan Beulich <jbeulich@suse.com> | 2020-07-15 08:53:55 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2020-07-15 08:53:55 +0200 |
| commit | 36938cabf0efcb053d1585e8580a4b3db438ca4e (patch) | |
| tree | e7193f8c5b4f0cc83b6a76a4d5a35f0b86058abd /ld/testsuite/ld-x86-64/pr20830b.d | |
| parent | a8a48c756c0da3a49008662e14ae582764ddd0bb (diff) | |
| download | gdb-36938cabf0efcb053d1585e8580a4b3db438ca4e.zip gdb-36938cabf0efcb053d1585e8580a4b3db438ca4e.tar.gz gdb-36938cabf0efcb053d1585e8580a4b3db438ca4e.tar.bz2 | |
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.
Diffstat (limited to 'ld/testsuite/ld-x86-64/pr20830b.d')
| -rw-r--r-- | ld/testsuite/ld-x86-64/pr20830b.d | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/ld/testsuite/ld-x86-64/pr20830b.d b/ld/testsuite/ld-x86-64/pr20830b.d index e9a6a1c..3c5d42b 100644 --- a/ld/testsuite/ld-x86-64/pr20830b.d +++ b/ld/testsuite/ld-x86-64/pr20830b.d @@ -42,19 +42,19 @@ Contents of the .eh_frame section: Disassembly of section .plt: 0+120 <.plt>: - +[a-f0-9]+: ff 35 e2 0e 20 00 pushq 0x200ee2\(%rip\) # 201008 <_GLOBAL_OFFSET_TABLE_\+0x8> - +[a-f0-9]+: ff 25 e4 0e 20 00 jmpq \*0x200ee4\(%rip\) # 201010 <_GLOBAL_OFFSET_TABLE_\+0x10> + +[a-f0-9]+: ff 35 e2 0e 20 00 push 0x200ee2\(%rip\) # 201008 <_GLOBAL_OFFSET_TABLE_\+0x8> + +[a-f0-9]+: ff 25 e4 0e 20 00 jmp \*0x200ee4\(%rip\) # 201010 <_GLOBAL_OFFSET_TABLE_\+0x10> +[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%rax\) Disassembly of section .plt.got: 0+130 <func@plt>: - +[a-f0-9]+: ff 25 c2 0e 20 00 jmpq \*0x200ec2\(%rip\) # 200ff8 <func> + +[a-f0-9]+: ff 25 c2 0e 20 00 jmp \*0x200ec2\(%rip\) # 200ff8 <func> +[a-f0-9]+: 66 90 xchg %ax,%ax Disassembly of section .text: 0+138 <foo>: - +[a-f0-9]+: e8 f3 ff ff ff callq 130 <func@plt> + +[a-f0-9]+: e8 f3 ff ff ff call 130 <func@plt> +[a-f0-9]+: 48 8b 05 b4 0e 20 00 mov 0x200eb4\(%rip\),%rax # 200ff8 <func> #pass |