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| author |  Ævar Arnfjörð Bjarmason <avarab@gmail.com> | 2021-02-18 01:07:23 +0100 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2021-02-17 16:32:19 -0800 |
| commit | a39b4003f0e4515da5d88480c24ec27196dabfb7 (patch) | |
| tree | 60f6ebbb791e8a95922c46c596b33f5b0107262b | |
| parent | grep/pcre2: prepare to add debugging to pcre2_malloc() (diff) | |
| download | tgif-a39b4003f0e4515da5d88480c24ec27196dabfb7.tar.xz | |
grep/pcre2: add GREP_PCRE2_DEBUG_MALLOC debug mode
Add optional printing of PCREv2 allocations to stderr for a developer
who manually changes the GREP_PCRE2_DEBUG_MALLOC definition to "1".
You need to manually change the definition in the source file similar
to the DEBUG_MAILMAP, there's no Makefile knob for this.
This will be referenced a subsequent commit, and is generally useful
to manually see what's going on with PCREv2 allocations while working
on that code.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | grep.c | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -42,15 +42,25 @@ static struct grep_opt grep_defaults = { #ifdef USE_LIBPCRE2 static pcre2_general_context *pcre2_global_context; +#define GREP_PCRE2_DEBUG_MALLOC 0 static void *pcre2_malloc(PCRE2_SIZE size, MAYBE_UNUSED void *memory_data) { void *pointer = malloc(size); +#if GREP_PCRE2_DEBUG_MALLOC + static int count = 1; + fprintf(stderr, "PCRE2:%p -> #%02d: alloc(%lu)\n", pointer, count++, size); +#endif return pointer; } static void pcre2_free(void *pointer, MAYBE_UNUSED void *memory_data) { +#if GREP_PCRE2_DEBUG_MALLOC + static int count = 1; + if (pointer) + fprintf(stderr, "PCRE2:%p -> #%02d: free()\n", pointer, count++); +#endif free(pointer); } #endif |