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[RFC] Fix the support of larger symbol name #503

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Merged
merged 1 commit into from
Oct 1, 2021
Merged

[RFC] Fix the support of larger symbol name #503

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9 changes: 6 additions & 3 deletions scripts/kallsyms.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,9 @@

#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))

#define _stringify_1(x) #x
#define _stringify(x) _stringify_1(x)

#define KSYM_NAME_LEN 512

struct sym_entry {
Expand Down Expand Up @@ -197,15 +200,15 @@ static void check_symbol_range(const char *sym, unsigned long long addr,

static struct sym_entry *read_symbol(FILE *in)
{
char name[500], type;
char name[KSYM_NAME_LEN+1], type;
unsigned long long addr;
unsigned int len;
struct sym_entry *sym;
int rc;

rc = fscanf(in, "%llx %c %499s\n", &addr, &type, name);
rc = fscanf(in, "%llx %c %" _stringify(KSYM_NAME_LEN) "s\n", &addr, &type, name);
if (rc != 3) {
if (rc != EOF && fgets(name, 500, in) == NULL)
if (rc != EOF && fgets(name, KSYM_NAME_LEN + 1, in) == NULL)
fprintf(stderr, "Read error or end of file.\n");
return NULL;
}
Expand Down