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authorJeff Garzik <jgarzik@pobox.com>2005-11-29 03:50:33 -0500
committerJeff Garzik <jgarzik@pobox.com>2005-11-29 03:50:33 -0500
commit2226340eb8df9c42f9fca74582d08d5117fc0cec (patch)
treec98370844715194600b79f886dbc391633f3e470 /arch/um/sys-i386/stub_segv.c
parent2e06cb5859fdaeba0529806eb1bf161ffd0db201 (diff)
parent624f54be206adf970cd8eece16446b027913e533 (diff)
Merge branch 'master'
Diffstat (limited to 'arch/um/sys-i386/stub_segv.c')
-rw-r--r--arch/um/sys-i386/stub_segv.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/um/sys-i386/stub_segv.c b/arch/um/sys-i386/stub_segv.c
index 1e88b275edac..a37f672ec964 100644
--- a/arch/um/sys-i386/stub_segv.c
+++ b/arch/um/sys-i386/stub_segv.c
@@ -3,9 +3,11 @@
3 * Licensed under the GPL 3 * Licensed under the GPL
4 */ 4 */
5 5
6#include <asm/signal.h> 6#include <signal.h>
7#include <sys/select.h> /* The only way I can see to get sigset_t */
7#include <asm/unistd.h> 8#include <asm/unistd.h>
8#include "uml-config.h" 9#include "uml-config.h"
10#include "sysdep/stub.h"
9#include "sysdep/sigcontext.h" 11#include "sysdep/sigcontext.h"
10#include "sysdep/faultinfo.h" 12#include "sysdep/faultinfo.h"
11 13
@@ -13,13 +15,14 @@ void __attribute__ ((__section__ (".__syscall_stub")))
13stub_segv_handler(int sig) 15stub_segv_handler(int sig)
14{ 16{
15 struct sigcontext *sc = (struct sigcontext *) (&sig + 1); 17 struct sigcontext *sc = (struct sigcontext *) (&sig + 1);
18 int pid;
16 19
17 GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA), 20 GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
18 sc); 21 sc);
19 22
20 __asm__("movl %0, %%eax ; int $0x80": : "g" (__NR_getpid)); 23 pid = stub_syscall0(__NR_getpid);
21 __asm__("movl %%eax, %%ebx ; movl %0, %%eax ; movl %1, %%ecx ;" 24 stub_syscall2(__NR_kill, pid, SIGUSR1);
22 "int $0x80": : "g" (__NR_kill), "g" (SIGUSR1)); 25
23 /* Load pointer to sigcontext into esp, since we need to leave 26 /* Load pointer to sigcontext into esp, since we need to leave
24 * the stack in its original form when we do the sigreturn here, by 27 * the stack in its original form when we do the sigreturn here, by
25 * hand. 28 * hand.