leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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

Browse Source 
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 <Gennady.V.Sharapov@intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Gennady Sharapov 2006-01-08 01:01:32 -08:00 committed by Linus Torvalds
parent ea2ba7dc3d
commit c66fdd5e32
4 changed files with 39 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/um/kernel/Makefile
View File

@ -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

14
arch/um/kernel/trap_kern.c
View File

@ -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 @@ out_of_memory:
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,

58
arch/um/kernel/trap_user.c
View File

@ -1,58 +0,0 @@
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#include <stdlib.h>
#include <errno.h>
#include <setjmp.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <asm/page.h>
#include <asm/unistd.h>
#include <asm/ptrace.h>
#include "init.h"
#include "sysdep/ptrace.h"
#include "sigcontext.h"
#include "sysdep/sigcontext.h"
#include "irq_user.h"
#include "time_user.h"
#include "task.h"
#include "mode.h"
#include "choose-mode.h"
#include "kern_util.h"
#include "user_util.h"
#include "os.h"
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);
}
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;
}

25
arch/um/os-Linux/trap.c
View File

@ -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)
{