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[Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for func
From: |
rui314 at gmail dot com |
Subject: |
[Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call |
Date: |
Wed, 12 Oct 2022 08:35:35 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=29655
--- Comment #20 from Rui Ueyama <rui314 at gmail dot com> ---
GCC 12 seems to always append `@PLT` to a function symbol even if we are not
calling that function. Here is a test case.
```
$ echo 'void foo(); void *bar() { return foo; }' | gcc-12 -S -o- -xc -
.file "<stdin>"
.machinemode zarch
.machine "z196"
.text
.align 8
.globl bar
.type bar, @function
bar:
.LFB0:
.cfi_startproc
ldgr %f0,%r11
.cfi_register 11, 16
lgr %r11,%r15
.cfi_def_cfa_register 11
larl %r1,foo@PLT
lgr %r2,%r1
lgdr %r11,%f0
.cfi_restore 11
.cfi_def_cfa_register 15
br %r14
.cfi_endproc
.LFE0:
.size bar, .-bar
.ident "GCC: (SUSE Linux) 12.1.1 20220812 [revision
6b7d570a5001bb79e34c0d1626a8c7f55386dac7]"
.section .note.GNU-stack,"",@progbits
```
I think `larl %r1,foo@PLT` should be `larl %r1,foo`.
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- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, (continued)
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, uweigand at gcc dot gnu.org, 2022/10/07
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, rui314 at gmail dot com, 2022/10/07
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, krebbel at linux dot ibm.com, 2022/10/07
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, uweigand at gcc dot gnu.org, 2022/10/07
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, rui314 at gmail dot com, 2022/10/07
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, uweigand at gcc dot gnu.org, 2022/10/07
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, krebbel at linux dot ibm.com, 2022/10/10
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, krebbel at linux dot ibm.com, 2022/10/10
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, rui314 at gmail dot com, 2022/10/10
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, krebbel at linux dot ibm.com, 2022/10/10
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call,
rui314 at gmail dot com <=
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, krebbel at linux dot ibm.com, 2022/10/12
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, iii at linux dot ibm.com, 2022/10/12
- [Bug gas/29655] s390x gas generates PC32DBL instead of PLT32DBL for function call, iii at linux dot ibm.com, 2022/10/12