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heap: __builtin_return_address argument has to be a literal value

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Clang does not accept const int as an argument of __builtin_return_address.

Ref LLVM-14
This commit is contained in:
Ivan Grokhotkov 2018-12-06 15:12:17 +08:00
parent 94f2dd27d4
commit 3150920cb4
1 changed files with 4 additions and 2 deletions
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6
components/heap/heap_trace.c
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@ -271,11 +271,14 @@ inline static uint32_t get_ccount(void)
return ccount;
}
// Caller is 2 stack frames deeper than we care about
#define STACK_OFFSET 2
#define TEST_STACK(N) do { \
if (STACK_DEPTH == N) { \
return; \
} \
callers[N] = __builtin_return_address(N+offset); \
callers[N] = __builtin_return_address(N+STACK_OFFSET); \
if (!esp_ptr_executable(callers[N])) { \
return; \
} \
@ -288,7 +291,6 @@ inline static uint32_t get_ccount(void)
*/
static IRAM_ATTR __attribute__((noinline)) void get_call_stack(void **callers)
{
const int offset = 2; // Caller is 2 stack frames deeper than we care about
bzero(callers, sizeof(void *) * STACK_DEPTH);
TEST_STACK(0);
TEST_STACK(1);