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Diffstat (limited to 'arch/um/sys-x86_64/stub_segv.c')
-rw-r--r--arch/um/sys-x86_64/stub_segv.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/um/sys-x86_64/stub_segv.c b/arch/um/sys-x86_64/stub_segv.c
index d1e53bdf2e85..a27099533198 100644
--- a/arch/um/sys-x86_64/stub_segv.c
+++ b/arch/um/sys-x86_64/stub_segv.c
@@ -3,14 +3,14 @@
* Licensed under the GPL
*/
-#include <asm/signal.h>
+#include <stddef.h>
+#include <signal.h>
#include <linux/compiler.h>
#include <asm/unistd.h>
-#include <asm/ucontext.h>
#include "uml-config.h"
#include "sysdep/sigcontext.h"
#include "sysdep/faultinfo.h"
-#include <stddef.h>
+#include "sysdep/stub.h"
/* Copied from sys-x86_64/signal.c - Can't find an equivalent definition
* in the libc headers anywhere.
@@ -31,21 +31,21 @@ void __attribute__ ((__section__ (".__syscall_stub")))
stub_segv_handler(int sig)
{
struct ucontext *uc;
+ int pid;
__asm__("movq %%rdx, %0" : "=g" (uc) :);
GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
&uc->uc_mcontext);
- __asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));
- __asm__("movq %%rax, %%rdi ; movq %0, %%rax ; movq %1, %%rsi ;"
- "syscall": : "g" (__NR_kill), "g" (SIGUSR1) :
- "%rdi", "%rax", "%rsi");
+ pid = stub_syscall0(__NR_getpid);
+ stub_syscall2(__NR_kill, pid, SIGUSR1);
+
/* sys_sigreturn expects that the stack pointer will be 8 bytes into
* the signal frame. So, we use the ucontext pointer, which we know
* already, to get the signal frame pointer, and add 8 to that.
*/
- __asm__("movq %0, %%rsp": :
+ __asm__("movq %0, %%rsp; movq %1, %%rax ; syscall": :
"g" ((unsigned long) container_of(uc, struct rt_sigframe,
- uc) + 8));
- __asm__("movq %0, %%rax ; syscall" : : "g" (__NR_rt_sigreturn));
+ uc) + 8),
+ "g" (__NR_rt_sigreturn));
}