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| author | Julien Thierry <jthierry@redhat.com> | 2020-04-03 16:17:30 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2020-04-23 00:14:46 +0300 |
| commit | 7f9b34f36cf6b2099f19e679a9e8315c955ef2ee (patch) | |
| tree | 1ef18a8b85549cc38e021ba4104c8b84bc32f8a6 | |
| parent | df2b384366fc427eeaa8bd0e761390180b311df0 (diff) | |
| download | linux-7f9b34f36cf6b2099f19e679a9e8315c955ef2ee.tar.xz | |
objtool: Fix off-by-one in symbol_by_offset()
Sometimes, WARN_FUNC() and other users of symbol_by_offset() will
associate the first instruction of a symbol with the symbol preceding
it. This is because symbol->offset + symbol->len is already outside of
the symbol's range.
Fixes: 2a362ecc3ec9 ("objtool: Optimize find_symbol_*() and read_symbols()")
Signed-off-by: Julien Thierry <jthierry@redhat.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
| -rw-r--r-- | tools/objtool/elf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c index 09ddc8f1def3..c4857fa3f1d1 100644 --- a/tools/objtool/elf.c +++ b/tools/objtool/elf.c @@ -105,7 +105,7 @@ static int symbol_by_offset(const void *key, const struct rb_node *node) if (*o < s->offset) return -1; - if (*o > s->offset + s->len) + if (*o >= s->offset + s->len) return 1; return 0; |