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authorGennady Sharapov <Gennady.V.Sharapov@intel.com>2006-01-18 17:42:41 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-18 19:20:19 -0800
commit4fef0c10fa174b57a10854b8b4b2b90d155706e0 (patch)
tree02cfcc989114da9a6d46484753937cc0e3a60b52 /arch/um/os-Linux/tt.c
parent12919aa6e015dd85170fc3b1a3e10a5dfd116c72 (diff)
[PATCH] uml: move libc-dependent utility procedures
The serial UML OS-abstraction layer patch (um/kernel dir). This moves all systemcalls from user_util.c file under os-Linux dir Signed-off-by: Gennady Sharapov <Gennady.V.Sharapov@intel.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/os-Linux/tt.c')
-rw-r--r--arch/um/os-Linux/tt.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/um/os-Linux/tt.c b/arch/um/os-Linux/tt.c
index cb2648b79d0..404bb63a74a 100644
--- a/arch/um/os-Linux/tt.c
+++ b/arch/um/os-Linux/tt.c
@@ -63,6 +63,54 @@ void kill_child_dead(int pid)
} while(1);
}
+void stop(void)
+{
+ while(1) sleep(1000000);
+}
+
+int wait_for_stop(int pid, int sig, int cont_type, void *relay)
+{
+ sigset_t *relay_signals = relay;
+ int status, ret;
+
+ while(1){
+ CATCH_EINTR(ret = waitpid(pid, &status, WUNTRACED));
+ if((ret < 0) ||
+ !WIFSTOPPED(status) || (WSTOPSIG(status) != sig)){
+ if(ret < 0){
+ printk("wait failed, errno = %d\n",
+ errno);
+ }
+ else if(WIFEXITED(status))
+ printk("process %d exited with status %d\n",
+ pid, WEXITSTATUS(status));
+ else if(WIFSIGNALED(status))
+ printk("process %d exited with signal %d\n",
+ pid, WTERMSIG(status));
+ else if((WSTOPSIG(status) == SIGVTALRM) ||
+ (WSTOPSIG(status) == SIGALRM) ||
+ (WSTOPSIG(status) == SIGIO) ||
+ (WSTOPSIG(status) == SIGPROF) ||
+ (WSTOPSIG(status) == SIGCHLD) ||
+ (WSTOPSIG(status) == SIGWINCH) ||
+ (WSTOPSIG(status) == SIGINT)){
+ ptrace(cont_type, pid, 0, WSTOPSIG(status));
+ continue;
+ }
+ else if((relay_signals != NULL) &&
+ sigismember(relay_signals, WSTOPSIG(status))){
+ ptrace(cont_type, pid, 0, WSTOPSIG(status));
+ continue;
+ }
+ else printk("process %d stopped with signal %d\n",
+ pid, WSTOPSIG(status));
+ panic("wait_for_stop failed to wait for %d to stop "
+ "with %d\n", pid, sig);
+ }
+ return(status);
+ }
+}
+
/*
*-------------------------
* only for tt mode (will be deleted in future...)