From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 16 Sep 2015 15:38:44 +0000 (+0200)
Subject: trace: remove malloc tracing
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=7a88f1257d5261a7bee98facdb97f50d5553060e;p=qemu-upstream-4.6-testing.git

trace: remove malloc tracing

The malloc vtable is not supported anymore in glib, because it broke
when constructors called g_malloc.  Remove tracing of g_malloc,
g_realloc and g_free calls.

Note that, for systemtap users, glib also provides tracepoints
glib.mem_alloc, glib.mem_free, glib.mem_realloc, glib.slice_alloc
and glib.slice_free.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 1442417924-25831-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

upstream-commit-id: 98cf48f60aa4999f5b2808569a193a401a390e6a
---

diff --git a/trace-events b/trace-events
index abd111838..3d410be60 100644
--- a/trace-events
+++ b/trace-events
@@ -571,9 +571,6 @@ scsi_request_sense(int target, int lun, int tag) "target %d lun %d tag %d"
 vm_state_notify(int running, int reason) "running %d reason %d"
 load_file(const char *name, const char *path) "name %s location %s"
 runstate_set(int new_state) "new state %d"
-g_malloc(size_t size, void *ptr) "size %zu ptr %p"
-g_realloc(void *ptr, size_t size, void *newptr) "ptr %p size %zu newptr %p"
-g_free(void *ptr) "ptr %p"
 system_wakeup_request(int reason) "reason=%d"
 qemu_system_shutdown_request(void) ""
 qemu_system_powerdown_request(void) ""
diff --git a/vl.c b/vl.c
index 91411c1fa..b76f16f7a 100644
--- a/vl.c
+++ b/vl.c
@@ -2628,26 +2628,6 @@ static const QEMUOption *lookup_opt(int argc, char **argv,
     return popt;
 }
 
-static gpointer malloc_and_trace(gsize n_bytes)
-{
-    void *ptr = malloc(n_bytes);
-    trace_g_malloc(n_bytes, ptr);
-    return ptr;
-}
-
-static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
-{
-    void *ptr = realloc(mem, n_bytes);
-    trace_g_realloc(mem, n_bytes, ptr);
-    return ptr;
-}
-
-static void free_and_trace(gpointer mem)
-{
-    trace_g_free(mem);
-    free(mem);
-}
-
 static int machine_set_property(const char *name, const char *value,
                                 void *opaque)
 {
@@ -2763,11 +2743,6 @@ int main(int argc, char **argv, char **envp)
     bool userconfig = true;
     const char *log_mask = NULL;
     const char *log_file = NULL;
-    GMemVTable mem_trace = {
-        .malloc = malloc_and_trace,
-        .realloc = realloc_and_trace,
-        .free = free_and_trace,
-    };
     const char *trace_events = NULL;
     const char *trace_file = NULL;
     const ram_addr_t default_ram_size = (ram_addr_t)DEFAULT_RAM_SIZE *
@@ -2781,8 +2756,6 @@ int main(int argc, char **argv, char **envp)
     error_set_progname(argv[0]);
     qemu_init_exec_dir(argv[0]);
 
-    g_mem_set_vtable(&mem_trace);
-
     module_call_init(MODULE_INIT_QOM);
 
     qemu_add_opts(&qemu_drive_opts);