forked from rpms/elfutils
c06d0b7bcf
Enable eu-stacktrace on x86_64 Add elfutils-0.192-stacktrace-lto.patch Resolves: RHEL-64067
36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
commit 43829fb8780ecbe9d17aaed22d3dfcb806cb5f45
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Author: Mark Wielaard <mark@klomp.org>
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Date: Thu Oct 24 10:44:25 2024 +0200
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stacktrace: Init elf_fd in sysprof_init_dwfl
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When building with LTO gcc believes elf_fd can be used uninitialized:
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In function ‘sysprof_init_dwfl’,
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inlined from ‘sysprof_unwind_cb’ at stacktrace.c:1235:16:
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stacktrace.c:1087:7: error: ‘elf_fd’ may be used uninitialized [-Werror=maybe-uninitialized]
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1087 | close (elf_fd);
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| ^
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This code won't be reached because if find_procfile doesn't initialize
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elf_fd, it will return an error. But help the compiler by initializing
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elf_fd to -1.
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* src/stacktrace.c (sysprof_init_dwfl): Init elf_fd to -1.
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Signed-off-by: Mark Wielaard <mark@klomp.org>
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diff --git a/src/stacktrace.c b/src/stacktrace.c
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index 438cb1dd0d38..b912ca5de502 100644
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--- a/src/stacktrace.c
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+++ b/src/stacktrace.c
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@@ -1033,7 +1033,7 @@ sysprof_init_dwfl (struct sysprof_unwind_info *sui,
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}
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Elf *elf = NULL;
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- int elf_fd;
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+ int elf_fd = -1;
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err = find_procfile (dwfl, &pid, &elf, &elf_fd);
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if (err < 0)
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{
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