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-rw-r--r--arch/um/os-Linux/skas/process.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 50418a5e7134..88ff0de95cd3 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -189,14 +189,25 @@ static int userspace_tramp(void *stack)
189 } 189 }
190 } 190 }
191 if(!ptrace_faultinfo && (stack != NULL)){ 191 if(!ptrace_faultinfo && (stack != NULL)){
192 struct sigaction sa;
193
192 unsigned long v = UML_CONFIG_STUB_CODE + 194 unsigned long v = UML_CONFIG_STUB_CODE +
193 (unsigned long) stub_segv_handler - 195 (unsigned long) stub_segv_handler -
194 (unsigned long) &__syscall_stub_start; 196 (unsigned long) &__syscall_stub_start;
195 197
196 set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size()); 198 set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size());
197 set_handler(SIGSEGV, (void *) v, SA_ONSTACK, 199 sigemptyset(&sa.sa_mask);
198 SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, 200 sigaddset(&sa.sa_mask, SIGIO);
199 SIGUSR1, -1); 201 sigaddset(&sa.sa_mask, SIGWINCH);
202 sigaddset(&sa.sa_mask, SIGALRM);
203 sigaddset(&sa.sa_mask, SIGVTALRM);
204 sigaddset(&sa.sa_mask, SIGUSR1);
205 sa.sa_flags = SA_ONSTACK;
206 sa.sa_handler = (void *) v;
207 sa.sa_restorer = NULL;
208 if(sigaction(SIGSEGV, &sa, NULL) < 0)
209 panic("userspace_tramp - setting SIGSEGV handler "
210 "failed - errno = %d\n", errno);
200 } 211 }
201 212
202 os_stop_process(os_getpid()); 213 os_stop_process(os_getpid());