X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fum%2Fkernel%2Fskas%2Fprocess.c;h=eea1c9c4bb0fcd531803dbd6f9bfb468ed87055f;hp=5cd0e992978969c8d076b3fd9ce4fd0fe9d3a4c1;hb=9bd6f13dfd1dfb2e8f20df50581ebe7344ba97bd;hpb=d67eb16f5d444fb6d173bcec889ddb2066c0fa0c

diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 5cd0e9929789..eea1c9c4bb0f 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -18,7 +18,6 @@
 #include <asm/types.h>
 #include "user.h"
 #include "ptrace_user.h"
-#include "time_user.h"
 #include "sysdep/ptrace.h"
 #include "user_util.h"
 #include "kern_util.h"
@@ -31,7 +30,6 @@
 #include "proc_mm.h"
 #include "skas_ptrace.h"
 #include "chan_user.h"
-#include "signal_user.h"
 #include "registers.h"
 #include "mem.h"
 #include "uml-config.h"
@@ -69,6 +67,17 @@ void wait_stub_done(int pid, int sig, char * fname)
 
         if((n < 0) || !WIFSTOPPED(status) ||
            (WSTOPSIG(status) != SIGUSR1 && WSTOPSIG(status) != SIGTRAP)){
+		unsigned long regs[HOST_FRAME_SIZE];
+		if(ptrace(PTRACE_GETREGS, pid, 0, regs) < 0)
+			printk("Failed to get registers from stub, "
+			       "errno = %d\n", errno);
+		else {
+			int i;
+
+			printk("Stub registers -\n");
+			for(i = 0; i < HOST_FRAME_SIZE; i++)
+				printk("\t%d - %lx\n", i, regs[i]);
+		}
                 panic("%s : failed to wait for SIGUSR1/SIGTRAP, "
                       "pid = %d, n = %d, errno = %d, status = 0x%x\n",
                       fname, pid, n, errno, status);
@@ -370,9 +379,9 @@ int copy_context_skas0(unsigned long new_stack, int pid)
 }
 
 /*
- * This is used only, if proc_mm is available, while PTRACE_FAULTINFO
- * isn't. Opening /proc/mm creates a new mm_context, which lacks the stub-pages
- * Thus, we map them using /proc/mm-fd
+ * This is used only, if stub pages are needed, while proc_mm is
+ * availabl. Opening /proc/mm creates a new mm_context, which lacks
+ * the stub-pages. Thus, we map them using /proc/mm-fd
  */
 void map_stub_pages(int fd, unsigned long code,
 		    unsigned long data, unsigned long stack)
@@ -503,16 +512,6 @@ int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr)
 	siglongjmp(**switch_buf, 1);
 }
 
-void remove_sigstack(void)
-{
-	stack_t stack = ((stack_t) { .ss_flags	= SS_DISABLE,
-				     .ss_sp	= NULL,
-				     .ss_size	= 0 });
-
-	if(sigaltstack(&stack, NULL) != 0)
-		panic("disabling signal stack failed, errno = %d\n", errno);
-}
-
 void initial_thread_cb_skas(void (*proc)(void *), void *arg)
 {
 	sigjmp_buf here;