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| author | Josh Poimboeuf <jpoimboe@kernel.org> | 2022-06-01 17:42:22 -0700 |
|---|---|---|
| committer | Josh Poimboeuf <jpoimboe@kernel.org> | 2022-06-06 11:50:11 -0700 |
| commit | dcea997beed694cbd8705100ca1a6eb0d886de69 (patch) | |
| tree | bb1a8f2d8b33e60043d5b1e0a9809a912ecd8d11 /tools | |
| parent | c2f75a43f5ae48b9babeb5b82c9f23fe18d3d144 (diff) | |
| download | linux-dcea997beed694cbd8705100ca1a6eb0d886de69.tar.bz2 | |
faddr2line: Fix overlapping text section failures, the sequel
If a function lives in a section other than .text, but .text also exists
in the object, faddr2line may wrongly assume .text. This can result in
comically wrong output. For example:
$ scripts/faddr2line vmlinux.o enter_from_user_mode+0x1c
enter_from_user_mode+0x1c/0x30:
find_next_bit at /home/jpoimboe/git/linux/./include/linux/find.h:40
(inlined by) perf_clear_dirty_counters at /home/jpoimboe/git/linux/arch/x86/events/core.c:2504
Fix it by passing the section name to addr2line, unless the object file
is vmlinux, in which case the symbol table uses absolute addresses.
Fixes: 1d1a0e7c5100 ("scripts/faddr2line: Fix overlapping text section failures")
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/7d25bc1408bd3a750ac26e60d2f2815a5f4a8363.1654130536.git.jpoimboe@kernel.org
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions