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Diffstat (limited to 'arch/um/os-Linux/signal.c')
-rw-r--r--arch/um/os-Linux/signal.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 2d22f1f..6366ce9 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -13,8 +13,9 @@
#include "kern_util.h"
#include "os.h"
#include "sysdep/mcontext.h"
+#include "internal.h"
-void (*sig_info[NSIG])(int, struct uml_pt_regs *) = {
+void (*sig_info[NSIG])(int, siginfo_t *, struct uml_pt_regs *) = {
[SIGTRAP] = relay_signal,
[SIGFPE] = relay_signal,
[SIGILL] = relay_signal,
@@ -24,7 +25,7 @@ void (*sig_info[NSIG])(int, struct uml_pt_regs *) = {
[SIGIO] = sigio_handler,
[SIGVTALRM] = timer_handler };
-static void sig_handler_common(int sig, mcontext_t *mc)
+static void sig_handler_common(int sig, siginfo_t *si, mcontext_t *mc)
{
struct uml_pt_regs r;
int save_errno = errno;
@@ -40,7 +41,7 @@ static void sig_handler_common(int sig, mcontext_t *mc)
if ((sig != SIGIO) && (sig != SIGWINCH) && (sig != SIGVTALRM))
unblock_signals();
- (*sig_info[sig])(sig, &r);
+ (*sig_info[sig])(sig, si, &r);
errno = save_errno;
}
@@ -60,7 +61,7 @@ static void sig_handler_common(int sig, mcontext_t *mc)
static int signals_enabled;
static unsigned int signals_pending;
-void sig_handler(int sig, mcontext_t *mc)
+void sig_handler(int sig, siginfo_t *si, mcontext_t *mc)
{
int enabled;
@@ -72,7 +73,7 @@ void sig_handler(int sig, mcontext_t *mc)
block_signals();
- sig_handler_common(sig, mc);
+ sig_handler_common(sig, si, mc);
set_signals(enabled);
}
@@ -85,10 +86,10 @@ static void real_alarm_handler(mcontext_t *mc)
get_regs_from_mc(&regs, mc);
regs.is_user = 0;
unblock_signals();
- timer_handler(SIGVTALRM, &regs);
+ timer_handler(SIGVTALRM, NULL, &regs);
}
-void alarm_handler(int sig, mcontext_t *mc)
+void alarm_handler(int sig, struct siginfo *unused_si, mcontext_t *mc)
{
int enabled;
@@ -119,7 +120,7 @@ void set_sigstack(void *sig_stack, int size)
panic("enabling signal stack failed, errno = %d\n", errno);
}
-static void (*handlers[_NSIG])(int sig, mcontext_t *mc) = {
+static void (*handlers[_NSIG])(int sig, siginfo_t *si, mcontext_t *mc) = {
[SIGSEGV] = sig_handler,
[SIGBUS] = sig_handler,
[SIGILL] = sig_handler,
@@ -132,7 +133,7 @@ static void (*handlers[_NSIG])(int sig, mcontext_t *mc) = {
};
-static void hard_handler(int sig, siginfo_t *info, void *p)
+static void hard_handler(int sig, siginfo_t *si, void *p)
{
struct ucontext *uc = p;
mcontext_t *mc = &uc->uc_mcontext;
@@ -161,7 +162,7 @@ static void hard_handler(int sig, siginfo_t *info, void *p)
while ((sig = ffs(pending)) != 0){
sig--;
pending &= ~(1 << sig);
- (*handlers[sig])(sig, mc);
+ (*handlers[sig])(sig, si, mc);
}
/*
@@ -273,9 +274,12 @@ void unblock_signals(void)
* Deal with SIGIO first because the alarm handler might
* schedule, leaving the pending SIGIO stranded until we come
* back here.
+ *
+ * SIGIO's handler doesn't use siginfo or mcontext,
+ * so they can be NULL.
*/
if (save_pending & SIGIO_MASK)
- sig_handler_common(SIGIO, NULL);
+ sig_handler_common(SIGIO, NULL, NULL);
if (save_pending & SIGVTALRM_MASK)
real_alarm_handler(NULL);