X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;ds=sidebyside;f=liblttng-ust-libc-wrapper%2Flttng-ust-malloc.c;h=d91813e7f35b5e84878db20a9ea457ce21e22338;hb=5490b085142c3c6ba72e120378d1ac765bd96b02;hp=652dd5ae977decbf24bf1587c2326902b74a0bd1;hpb=6d4658aa879ddabdd79fc6c637ee039413ad215b;p=lttng-ust.git

diff --git a/liblttng-ust-libc-wrapper/lttng-ust-malloc.c b/liblttng-ust-libc-wrapper/lttng-ust-malloc.c
index 652dd5ae..d91813e7 100644
--- a/liblttng-ust-libc-wrapper/lttng-ust-malloc.c
+++ b/liblttng-ust-libc-wrapper/lttng-ust-malloc.c
@@ -28,9 +28,11 @@
 #include <urcu/tls-compat.h>
 #include <urcu/arch.h>
 #include <lttng/align.h>
+#include <helper.h>
 
 #define TRACEPOINT_DEFINE
 #define TRACEPOINT_CREATE_PROBES
+#define TP_IP_PARAM ip
 #include "ust_libc.h"
 
 #define STATIC_CALLOC_LEN 4096
@@ -261,7 +263,7 @@ void *malloc(size_t size)
 	retval = cur_alloc.malloc(size);
 	if (URCU_TLS(malloc_nesting) == 1) {
 		tracepoint(lttng_ust_libc, malloc,
-			size, retval, __builtin_return_address(0));
+			size, retval, LTTNG_UST_CALLER_IP());
 	}
 	URCU_TLS(malloc_nesting)--;
 	return retval;
@@ -281,7 +283,7 @@ void free(void *ptr)
 
 	if (URCU_TLS(malloc_nesting) == 1) {
 		tracepoint(lttng_ust_libc, free,
-			ptr, __builtin_return_address(0));
+			ptr, LTTNG_UST_CALLER_IP());
 	}
 
 	if (cur_alloc.free == NULL) {
@@ -311,7 +313,7 @@ void *calloc(size_t nmemb, size_t size)
 	retval = cur_alloc.calloc(nmemb, size);
 	if (URCU_TLS(malloc_nesting) == 1) {
 		tracepoint(lttng_ust_libc, calloc,
-			nmemb, size, retval, __builtin_return_address(0));
+			nmemb, size, retval, LTTNG_UST_CALLER_IP());
 	}
 	URCU_TLS(malloc_nesting)--;
 	return retval;
@@ -364,7 +366,7 @@ void *realloc(void *ptr, size_t size)
 end:
 	if (URCU_TLS(malloc_nesting) == 1) {
 		tracepoint(lttng_ust_libc, realloc,
-			ptr, size, retval, __builtin_return_address(0));
+			ptr, size, retval, LTTNG_UST_CALLER_IP());
 	}
 	URCU_TLS(malloc_nesting)--;
 	return retval;
@@ -386,7 +388,7 @@ void *memalign(size_t alignment, size_t size)
 	if (URCU_TLS(malloc_nesting) == 1) {
 		tracepoint(lttng_ust_libc, memalign,
 			alignment, size, retval,
-			__builtin_return_address(0));
+			LTTNG_UST_CALLER_IP());
 	}
 	URCU_TLS(malloc_nesting)--;
 	return retval;
@@ -408,12 +410,18 @@ int posix_memalign(void **memptr, size_t alignment, size_t size)
 	if (URCU_TLS(malloc_nesting) == 1) {
 		tracepoint(lttng_ust_libc, posix_memalign,
 			*memptr, alignment, size,
-			retval, __builtin_return_address(0));
+			retval, LTTNG_UST_CALLER_IP());
 	}
 	URCU_TLS(malloc_nesting)--;
 	return retval;
 }
 
+static
+void lttng_ust_fixup_malloc_nesting_tls(void)
+{
+	asm volatile ("" : : "m" (URCU_TLS(malloc_nesting)));
+}
+
 __attribute__((constructor))
 void lttng_ust_malloc_wrapper_init(void)
 {
@@ -421,6 +429,7 @@ void lttng_ust_malloc_wrapper_init(void)
 	if (cur_alloc.calloc) {
 		return;
 	}
+	lttng_ust_fixup_malloc_nesting_tls();
 	/*
 	 * Ensure the allocator is in place before the process becomes
 	 * multithreaded.