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instrument functions: Minimize stat() calls

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This change decreases the execution time when the file indicating that
instrumentation is "off" exists.

[skip ci]
This commit is contained in:
Francois-Xavier Le Bail 2023-02-17 15:28:22 +01:00
parent 6008cb83b7
commit e5bd2dcf49
1 changed files with 8 additions and 1 deletions
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9
instrument-functions.c
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@ -86,12 +86,19 @@ static void print_debug(void *this_fn, void *call_site, action_type action)
static long symcount;
static asection *text;
static bfd_vma vma;
static int instrument_off;
static int print_only_global;
symbol_info syminfo;
struct stat statbuf;
int i;
if (!stat(ND_FILE_FLAG_OFF, &statbuf))
if (!instrument_off) {
/* one-time test */
if (!stat(ND_FILE_FLAG_OFF, &statbuf)) {
instrument_off = 1;
return;
}
} else
return;
/* If no errors, this block should be executed one time */