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objtool: Add empty symbols to the symbol tree again

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The following commit

  5da6aea375 ("objtool: Fix find_{symbol,func}_containing()")

fixed the issue where overlapping symbols weren't getting sorted
properly in the symbol tree.  Therefore the workaround to skip adding
empty symbols from the following commit

  a2e38dffcd ("objtool: Don't add empty symbols to the rbtree")

is no longer needed.

Acked-by: Petr Mladek <pmladek@suse.com>
Tested-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
This commit is contained in:
Josh Poimboeuf
2025-09-17 09:03:25 -07:00
parent 4ac2ba35f6
commit 81cf39be35
1 changed files with 2 additions and 8 deletions
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10
tools/objtool/elf.c
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@@ -96,7 +96,8 @@ static inline unsigned long __sym_last(struct symbol *s)
}
INTERVAL_TREE_DEFINE(struct symbol, node, unsigned long, __subtree_last,
__sym_start, __sym_last, static, __sym)
__sym_start, __sym_last, static inline __maybe_unused,
__sym)
#define __sym_for_each(_iter, _tree, _start, _end) \
for (_iter = __sym_iter_first((_tree), (_start), (_end)); \
@@ -440,13 +441,6 @@ static void elf_add_symbol(struct elf *elf, struct symbol *sym)
list_add(&sym->list, entry);
elf_hash_add(symbol, &sym->hash, sym->idx);
elf_hash_add(symbol_name, &sym->name_hash, str_hash(sym->name));
/*
* Don't store empty STT_NOTYPE symbols in the rbtree. They
* can exist within a function, confusing the sorting.
*/
if (!sym->len)
__sym_remove(sym, &sym->sec->symbol_tree);
}
static int read_symbols(struct elf *elf)