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-rw-r--r--tools/objtool/elf.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index a634b227d627..fe6e66dd5422 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -441,6 +441,19 @@ static int read_sections(struct elf *elf)
return 0;
}
+/*
+ * Remove number suffix of a symbol.
+ *
+ * Specifically, remove trailing numbers for "__UNIQUE_ID_" symbols and
+ * symbols with '.'.
+ *
+ * With CONFIG_LTO_CLANG_THIN, it is possible to have nested __UNIQUE_ID_,
+ * such as
+ *
+ * __UNIQUE_ID_addressable___UNIQUE_ID_pci_invalid_bar_694_695
+ *
+ * to remove both trailing numbers, also remove trailing '_'.
+ */
static const char *demangle_name(struct symbol *sym)
{
char *str;
@@ -463,7 +476,7 @@ static const char *demangle_name(struct symbol *sym)
for (int i = strlen(str) - 1; i >= 0; i--) {
char c = str[i];
- if (!isdigit(c) && c != '.') {
+ if (!isdigit(c) && c != '.' && c != '_') {
str[i + 1] = '\0';
break;
}