The _exit syscall is used for both thread termination in NPTL applications,

and process termination in legacy applications.  Try to guess which we want
based on the presence of multiple threads.

Also implement locking when modifying the CPU list.


Signed-off-by: Paul Brook <paul@codesourcery.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6735 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 6 insertions, 0 deletions

diff --git a/exec.c b/exec.c
index 902031c..ab93991 100644
--- a/exec.c
+++ b/exec.c
@@ -534,6 +534,9 @@ void cpu_exec_init(CPUState *env)
     CPUState **penv;
     int cpu_index;
 
+#if defined(CONFIG_USER_ONLY)
+    cpu_list_lock();
+#endif
     env->next_cpu = NULL;
     penv = &first_cpu;
     cpu_index = 0;
@@ -545,6 +548,9 @@ void cpu_exec_init(CPUState *env)
     TAILQ_INIT(&env->breakpoints);
     TAILQ_INIT(&env->watchpoints);
     *penv = env;
+#if defined(CONFIG_USER_ONLY)
+    cpu_list_unlock();
+#endif
 #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY)
     register_savevm("cpu_common", cpu_index, CPU_COMMON_SAVE_VERSION,
                     cpu_common_save, cpu_common_load, env);