diff options
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/include/shared/process.h | 5 | ||||
| -rw-r--r-- | arch/um/os-Linux/internal.h | 1 | ||||
| -rw-r--r-- | arch/um/os-Linux/signal.c | 35 | ||||
| -rw-r--r-- | arch/um/os-Linux/time.c | 2 | ||||
| -rw-r--r-- | arch/um/sys-x86/shared/sysdep/sigcontext_32.h | 7 | ||||
| -rw-r--r-- | arch/um/sys-x86/shared/sysdep/sigcontext_64.h | 7 | ||||
| -rw-r--r-- | arch/um/sys-x86/stub_segv.c | 2 |
7 files changed, 33 insertions, 26 deletions
diff --git a/arch/um/include/shared/process.h b/arch/um/include/shared/process.h index 28215300fc69..2ba310e1b656 100644 --- a/arch/um/include/shared/process.h +++ b/arch/um/include/shared/process.h @@ -6,9 +6,4 @@ #ifndef __PROCESS_H__ #define __PROCESS_H__ -#include <signal.h> - -extern void sig_handler(int sig, struct sigcontext *sc); -extern void alarm_handler(int sig, struct sigcontext *sc); - #endif diff --git a/arch/um/os-Linux/internal.h b/arch/um/os-Linux/internal.h new file mode 100644 index 000000000000..2c3c3ecd8c01 --- /dev/null +++ b/arch/um/os-Linux/internal.h @@ -0,0 +1 @@ +void alarm_handler(int, mcontext_t *); diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index 08d306176995..07d9905e44ef 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -26,7 +26,7 @@ void (*sig_info[NSIG])(int, struct uml_pt_regs *) = { [SIGIO] = sigio_handler, [SIGVTALRM] = timer_handler }; -static void sig_handler_common(int sig, struct sigcontext *sc) +static void sig_handler_common(int sig, mcontext_t *mc) { struct uml_pt_regs r; int save_errno = errno; @@ -34,8 +34,8 @@ static void sig_handler_common(int sig, struct sigcontext *sc) r.is_user = 0; if (sig == SIGSEGV) { /* For segfaults, we want the data from the sigcontext. */ - copy_sc(&r, sc); - GET_FAULTINFO_FROM_SC(r.faultinfo, sc); + copy_sc(&r, (struct sigcontext *)mc); + GET_FAULTINFO_FROM_MC(r.faultinfo, mc); } /* enable signals if sig isn't IRQ signal */ @@ -62,7 +62,7 @@ static void sig_handler_common(int sig, struct sigcontext *sc) static int signals_enabled; static unsigned int signals_pending; -void sig_handler(int sig, struct sigcontext *sc) +void sig_handler(int sig, mcontext_t *mc) { int enabled; @@ -74,23 +74,23 @@ void sig_handler(int sig, struct sigcontext *sc) block_signals(); - sig_handler_common(sig, sc); + sig_handler_common(sig, mc); set_signals(enabled); } -static void real_alarm_handler(struct sigcontext *sc) +static void real_alarm_handler(mcontext_t *mc) { struct uml_pt_regs regs; - if (sc != NULL) - copy_sc(®s, sc); + if (mc != NULL) + copy_sc(®s, (struct sigcontext *)mc); regs.is_user = 0; unblock_signals(); timer_handler(SIGVTALRM, ®s); } -void alarm_handler(int sig, struct sigcontext *sc) +void alarm_handler(int sig, mcontext_t *mc) { int enabled; @@ -102,7 +102,7 @@ void alarm_handler(int sig, struct sigcontext *sc) block_signals(); - real_alarm_handler(sc); + real_alarm_handler(mc); set_signals(enabled); } @@ -121,7 +121,7 @@ void set_sigstack(void *sig_stack, int size) panic("enabling signal stack failed, errno = %d\n", errno); } -static void (*handlers[_NSIG])(int sig, struct sigcontext *sc) = { +static void (*handlers[_NSIG])(int sig, mcontext_t *mc) = { [SIGSEGV] = sig_handler, [SIGBUS] = sig_handler, [SIGILL] = sig_handler, @@ -133,8 +133,11 @@ static void (*handlers[_NSIG])(int sig, struct sigcontext *sc) = { [SIGVTALRM] = alarm_handler }; -static void handle_signal(int sig, struct sigcontext *sc) + +static void hard_handler(int sig, siginfo_t *info, void *p) { + struct ucontext *uc = p; + mcontext_t *mc = &uc->uc_mcontext; unsigned long pending = 1UL << sig; do { @@ -160,7 +163,7 @@ static void handle_signal(int sig, struct sigcontext *sc) while ((sig = ffs(pending)) != 0){ sig--; pending &= ~(1 << sig); - (*handlers[sig])(sig, sc); + (*handlers[sig])(sig, mc); } /* @@ -174,12 +177,6 @@ static void handle_signal(int sig, struct sigcontext *sc) } while (pending); } -static void hard_handler(int sig, siginfo_t *info, void *p) -{ - struct ucontext *uc = p; - handle_signal(sig, (struct sigcontext *) &uc->uc_mcontext); -} - void set_handler(int sig) { struct sigaction action; diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c index 995ca304f1c9..910499d76a67 100644 --- a/arch/um/os-Linux/time.c +++ b/arch/um/os-Linux/time.c @@ -10,7 +10,7 @@ #include <sys/time.h> #include "kern_util.h" #include "os.h" -#include "process.h" +#include "internal.h" int set_interval(void) { diff --git a/arch/um/sys-x86/shared/sysdep/sigcontext_32.h b/arch/um/sys-x86/shared/sysdep/sigcontext_32.h index aebc2dd61f0d..548c3cdb743b 100644 --- a/arch/um/sys-x86/shared/sysdep/sigcontext_32.h +++ b/arch/um/sys-x86/shared/sysdep/sigcontext_32.h @@ -22,4 +22,11 @@ (fi).trap_no = SC_TRAPNO(sc); \ } +#define GET_FAULTINFO_FROM_MC(fi, mc) \ + { \ + (fi).cr2 = (mc)->cr2; \ + (fi).error_code = (mc)->gregs[REG_ERR]; \ + (fi).trap_no = (mc)->gregs[REG_TRAPNO]; \ + } + #endif diff --git a/arch/um/sys-x86/shared/sysdep/sigcontext_64.h b/arch/um/sys-x86/shared/sysdep/sigcontext_64.h index 60d89a2fba06..5c4a6a359141 100644 --- a/arch/um/sys-x86/shared/sysdep/sigcontext_64.h +++ b/arch/um/sys-x86/shared/sysdep/sigcontext_64.h @@ -22,4 +22,11 @@ (fi).trap_no = SC_TRAPNO(sc); \ } +#define GET_FAULTINFO_FROM_MC(fi, mc) \ + { \ + (fi).cr2 = (mc)->gregs[REG_CR2]; \ + (fi).error_code = (mc)->gregs[REG_ERR]; \ + (fi).trap_no = (mc)->gregs[REG_TRAPNO]; \ + } + #endif diff --git a/arch/um/sys-x86/stub_segv.c b/arch/um/sys-x86/stub_segv.c index f62771cf236e..bd2eaf69103f 100644 --- a/arch/um/sys-x86/stub_segv.c +++ b/arch/um/sys-x86/stub_segv.c @@ -12,7 +12,7 @@ stub_segv_handler(int sig, siginfo_t *info, void *p) { struct ucontext *uc = p; - GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA), + GET_FAULTINFO_FROM_MC(*((struct faultinfo *) STUB_DATA), &uc->uc_mcontext); trap_myself(); } |