52 lines
1.3 KiB
Diff
52 lines
1.3 KiB
Diff
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From 6b79df49055abbccd3033fbec52085b8a9d7b250 Mon Sep 17 00:00:00 2001
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From: hubin <hubin73@huawei.com>
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Date: Sun, 9 Oct 2022 10:34:52 +0800
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Subject: [PATCH] lookup: skip finding local symbols for object with no local
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symbols
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Signed-off-by: hubin <hubin73@huawei.com>
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---
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kpatch-build/lookup.c | 19 +++++++++++++++++++
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1 file changed, 19 insertions(+)
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diff --git a/kpatch-build/lookup.c b/kpatch-build/lookup.c
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index b77d7a8..875605d 100644
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--- a/kpatch-build/lookup.c
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+++ b/kpatch-build/lookup.c
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@@ -166,6 +166,22 @@ static bool locals_match(struct lookup_table *table, int idx,
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return true;
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}
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+static int count_local_symbol(struct list_head *sym_list)
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+{
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+ struct symbol *sym;
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+ int sym_num = 0;
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+
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+ list_for_each_entry(sym, sym_list, list) {
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+ if (sym->bind != STB_LOCAL)
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+ continue;
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+ if (sym->type != STT_FUNC && sym->type != STT_OBJECT)
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+ continue;
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+ sym_num++;
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+ }
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+
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+ return sym_num;
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+}
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+
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static void find_local_syms(struct lookup_table *table, struct symbol *file_sym,
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struct list_head *sym_list)
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{
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@@ -173,6 +189,9 @@ static void find_local_syms(struct lookup_table *table, struct symbol *file_sym,
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struct object_symbol *lookup_table_file_sym = NULL;
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int i;
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+ if (count_local_symbol(sym_list) == 0)
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+ return;
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+
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for_each_obj_symbol(i, sym, table) {
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if (sym->type != STT_FILE)
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continue;
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--
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2.27.0
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