diff options
-rw-r--r-- | osdep.c | 24 | ||||
-rw-r--r-- | qemu-malloc.c | 12 | ||||
-rw-r--r-- | trace-events | 10 |
3 files changed, 38 insertions, 8 deletions
@@ -50,6 +50,7 @@ #endif #include "qemu-common.h" +#include "trace.h" #include "sysemu.h" #include "qemu_socket.h" @@ -71,25 +72,34 @@ static void *oom_check(void *ptr) #if defined(_WIN32) void *qemu_memalign(size_t alignment, size_t size) { + void *ptr; + if (!size) { abort(); } - return oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE)); + ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE)); + trace_qemu_memalign(alignment, size, ptr); + return ptr; } void *qemu_vmalloc(size_t size) { + void *ptr; + /* FIXME: this is not exactly optimal solution since VirtualAlloc has 64Kb granularity, but at least it guarantees us that the memory is page aligned. */ if (!size) { abort(); } - return oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE)); + ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE)); + trace_qemu_vmalloc(size, ptr); + return ptr; } void qemu_vfree(void *ptr) { + trace_qemu_vfree(ptr); VirtualFree(ptr, 0, MEM_RELEASE); } @@ -97,21 +107,22 @@ void qemu_vfree(void *ptr) void *qemu_memalign(size_t alignment, size_t size) { + void *ptr; #if defined(_POSIX_C_SOURCE) && !defined(__sun__) int ret; - void *ptr; ret = posix_memalign(&ptr, alignment, size); if (ret != 0) { fprintf(stderr, "Failed to allocate %zu B: %s\n", size, strerror(ret)); abort(); } - return ptr; #elif defined(CONFIG_BSD) - return oom_check(valloc(size)); + ptr = oom_check(valloc(size)); #else - return oom_check(memalign(alignment, size)); + ptr = oom_check(memalign(alignment, size)); #endif + trace_qemu_memalign(alignment, size, ptr); + return ptr; } /* alloc shared memory pages */ @@ -122,6 +133,7 @@ void *qemu_vmalloc(size_t size) void qemu_vfree(void *ptr) { + trace_qemu_vfree(ptr); free(ptr); } diff --git a/qemu-malloc.c b/qemu-malloc.c index 36b0b3641e..ecffb676e2 100644 --- a/qemu-malloc.c +++ b/qemu-malloc.c @@ -22,6 +22,7 @@ * THE SOFTWARE. */ #include "qemu-common.h" +#include "trace.h" #include <stdlib.h> static void *oom_check(void *ptr) @@ -34,6 +35,7 @@ static void *oom_check(void *ptr) void qemu_free(void *ptr) { + trace_qemu_free(ptr); free(ptr); } @@ -48,18 +50,24 @@ static int allow_zero_malloc(void) void *qemu_malloc(size_t size) { + void *ptr; if (!size && !allow_zero_malloc()) { abort(); } - return oom_check(malloc(size ? size : 1)); + ptr = oom_check(malloc(size ? size : 1)); + trace_qemu_malloc(size, ptr); + return ptr; } void *qemu_realloc(void *ptr, size_t size) { + void *newptr; if (!size && !allow_zero_malloc()) { abort(); } - return oom_check(realloc(ptr, size ? size : 1)); + newptr = oom_check(realloc(ptr, size ? size : 1)); + trace_qemu_realloc(ptr, size, newptr); + return newptr; } void *qemu_mallocz(size_t size) diff --git a/trace-events b/trace-events index 2a986ecd29..d2f2bbc598 100644 --- a/trace-events +++ b/trace-events @@ -27,3 +27,13 @@ # system may not have the necessary headers included. # # The <format-string> should be a sprintf()-compatible format string. + +# qemu-malloc.c +disable qemu_malloc(size_t size, void *ptr) "size %zu ptr %p" +disable qemu_realloc(void *ptr, size_t size, void *newptr) "ptr %p size %zu newptr %p" +disable qemu_free(void *ptr) "ptr %p" + +# osdep.c +disable qemu_memalign(size_t alignment, size_t size, void *ptr) "alignment %zu size %zu ptr %p" +disable qemu_valloc(size_t size, void *ptr) "size %zu ptr %p" +disable qemu_vfree(void *ptr) "ptr %p" |