[PATCH] uml: merge trap_user.c and trap_kern.c

The serial UML OS-abstraction layer patch (um/kernel dir). This joins trap_user.c and trap_kernel.c files. Signed-off-by: Gennady Sharapov <[email protected]> Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
akeromi · Jan 9, 2006 · c66fdd5 · c66fdd5
1 parent ea2ba7d
commit c66fdd5
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Showing 4 changed files with 39 additions and 60 deletions.
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
@@ -10,7 +10,7 @@ obj-y = config.o exec_kern.o exitcode.o \
 	init_task.o irq.o irq_user.o ksyms.o mem.o physmem.o \
 	process_kern.o ptrace.o reboot.o resource.o sigio_user.o sigio_kern.o \
 	signal_kern.o smp.o syscall_kern.o sysrq.o time.o \
-	time_kern.o tlb.o trap_kern.o trap_user.o uaccess.o um_arch.o umid.o \
+	time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o \
 	user_util.o
 
 obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o

diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c
@@ -26,6 +26,9 @@
 #include "mconsole_kern.h"
 #include "mem.h"
 #include "mem_kern.h"
+#include "sysdep/sigcontext.h"
+#include "sysdep/ptrace.h"
+#include "os.h"
 #ifdef CONFIG_MODE_SKAS
 #include "skas.h"
 #endif
@@ -126,6 +129,17 @@ int handle_page_fault(unsigned long address, unsigned long ip,
 	goto out;
 }
 
+void segv_handler(int sig, union uml_pt_regs *regs)
+{
+	struct faultinfo * fi = UPT_FAULTINFO(regs);
+
+	if(UPT_IS_USER(regs) && !SEGV_IS_FIXABLE(fi)){
+		bad_segv(*fi, UPT_IP(regs));
+		return;
+	}
+	segv(*fi, UPT_IP(regs), UPT_IS_USER(regs), regs);
+}
+
 struct kern_handlers handlinfo_kern = {
 	.relay_signal = relay_signal,
 	.winch = winch,

diff --git a/arch/um/kernel/trap_user.c b/arch/um/kernel/trap_user.c
diff --git a/arch/um/os-Linux/trap.c b/arch/um/os-Linux/trap.c
@@ -3,11 +3,34 @@
  * Licensed under the GPL
  */
 
-#include <setjmp.h>
+#include <stdlib.h>
 #include <signal.h>
+#include <setjmp.h>
 #include "kern_util.h"
 #include "user_util.h"
 #include "os.h"
+#include "mode.h"
+
+void usr2_handler(int sig, union uml_pt_regs *regs)
+{
+	CHOOSE_MODE(syscall_handler_tt(sig, regs), (void) 0);
+}
+
+void (*sig_info[NSIG])(int, union uml_pt_regs *);
+
+void os_fill_handlinfo(struct kern_handlers h)
+{
+	sig_info[SIGTRAP] = h.relay_signal;
+	sig_info[SIGFPE] = h.relay_signal;
+	sig_info[SIGILL] = h.relay_signal;
+	sig_info[SIGWINCH] = h.winch;
+	sig_info[SIGBUS] = h.bus_handler;
+	sig_info[SIGSEGV] = h.page_fault;
+	sig_info[SIGIO] = h.sigio_handler;
+	sig_info[SIGVTALRM] = h.timer_handler;
+	sig_info[SIGALRM] = h.timer_handler;
+	sig_info[SIGUSR2] = usr2_handler;
+}
 
 void do_longjmp(void *b, int val)
 {