[Qemu-devel] [5642] User qemu profiling

[Aurelien Jarno]

Revision: 5642
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5642
Author:   aurel32
Date:     2008-11-06 16:15:18 +0000 (Thu, 06 Nov 2008)

Log Message:
-----------
User qemu profiling

- Makefile.target:  re-enable profiling for user qemu.  It seems
  profiling was (accidently?) removed by commit 3937

- syscall.c:
    * add an include to get _mcleanup prototype
    * add a call to _mcleanup for exit_group in a way
      similar to what is done for exit

(Laurent Desnogues)

Modified Paths:
--------------
    trunk/Makefile.target
    trunk/linux-user/syscall.c

Modified: trunk/Makefile.target
===================================================================
--- trunk/Makefile.target       2008-11-06 16:15:08 UTC (rev 5641)
+++ trunk/Makefile.target       2008-11-06 16:15:18 UTC (rev 5642)
@@ -397,6 +397,12 @@
 endif
 endif
 
+# profiling code
+ifdef TARGET_GPROF
+LDFLAGS+=-p
+CFLAGS+=-p
+endif
+
 OBJS= main.o syscall.o strace.o mmap.o signal.o path.o thunk.o \
       elfload.o linuxload.o uaccess.o
 LIBS+= $(AIOLIBS)

Modified: trunk/linux-user/syscall.c
===================================================================
--- trunk/linux-user/syscall.c  2008-11-06 16:15:08 UTC (rev 5641)
+++ trunk/linux-user/syscall.c  2008-11-06 16:15:18 UTC (rev 5642)
@@ -54,6 +54,9 @@
 #include <netinet/ip.h>
 #include <netinet/tcp.h>
 #include <qemu-common.h>
+#ifdef HAVE_GPROF
+#include <sys/gmon.h>
+#endif
 
 #define termios host_termios
 #define winsize host_winsize
@@ -4864,6 +4867,9 @@
 #ifdef __NR_exit_group
         /* new thread calls */
     case TARGET_NR_exit_group:
+#ifdef HAVE_GPROF
+        _mcleanup();
+#endif
         gdb_exit(cpu_env, arg1);
         ret = get_errno(exit_group(arg1));
         break;