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-rw-r--r--scripts/kallsyms.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 8fa81e84e295..d39a1eeb080e 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -34,6 +34,7 @@ struct sym_entry {
unsigned int len;
unsigned int start_pos;
unsigned char *sym;
+ unsigned int percpu_absolute;
};
struct addr_range {
@@ -171,6 +172,8 @@ static int read_symbol(FILE *in, struct sym_entry *s)
strcpy((char *)s->sym + 1, str);
s->sym[0] = stype;
+ s->percpu_absolute = 0;
+
/* Record if we've found __per_cpu_start/end. */
check_symbol_range(sym, s->addr, &percpu_range, 1);
@@ -325,7 +328,7 @@ static int expand_symbol(unsigned char *data, int len, char *result)
static int symbol_absolute(struct sym_entry *s)
{
- return toupper(s->sym[0]) == 'A';
+ return s->percpu_absolute;
}
static void write_src(void)
@@ -681,8 +684,15 @@ static void make_percpus_absolute(void)
unsigned int i;
for (i = 0; i < table_cnt; i++)
- if (symbol_in_range(&table[i], &percpu_range, 1))
+ if (symbol_in_range(&table[i], &percpu_range, 1)) {
+ /*
+ * Keep the 'A' override for percpu symbols to
+ * ensure consistent behavior compared to older
+ * versions of this tool.
+ */
table[i].sym[0] = 'A';
+ table[i].percpu_absolute = 1;
+ }
}
int main(int argc, char **argv)