On Tue, May 06, 2014 at 05:26:18PM +0200, Jean Pihet wrote:
SNIP
> diff --git a/tools/perf/arch/arm/tests/dwarf-unwind.c
> b/tools/perf/arch/arm/tests/dwarf-unwind.c
> new file mode 100644
> index 0000000..d618f5f
> --- /dev/null
> +++ b/tools/perf/arch/arm/tests/dwarf-unwind.c
> @@ -0,0 +1,59 @@
> +#include <string.h>
> +#include "perf_regs.h"
> +#include "thread.h"
> +#include "map.h"
> +#include "event.h"
> +#include "tests/tests.h"
> +
> +#define STACK_SIZE 8192
> +
> +static int sample_ustack(struct perf_sample *sample,
> + struct thread *thread, u64 *regs)
> +{
> + struct stack_dump *stack = &sample->user_stack;
> + struct map *map;
> + unsigned long sp;
> + u64 stack_size, *buf;
> +
> + buf = malloc(STACK_SIZE);
> + if (!buf) {
> + pr_debug("failed to allocate sample uregs data\n");
> + return -1;
> + }
> +
> + sp = (unsigned long) regs[PERF_REG_ARM_SP];
> +
> + map = map_groups__find(&thread->mg, MAP__FUNCTION, (u64) sp);
> + if (!map) {
> + pr_debug("failed to get stack map\n");
> + return -1;
> + }
there's a memory leak of 'buf' already fixed fox x86:
perf tests x86: Fix memory leak in sample_ustack()
commit 763d7f5f2718f085bab5a9e63308349728f3ad12
Author: Masanari Iida <standby2...@gmail.com>
Date: Sun Apr 20 00:16:41 2014 +0900
jirka
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