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authorJeff Dike <jdike@addtoit.com>2007-10-16 01:27:05 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:05 -0700
commitfab95c55e3b94e219044dc7a558632d08c198771 (patch)
tree2ce8bf6eb52e66ee69a0b03cf9ad60310279524e /arch/um/kernel
parent0a7675aa204ac2470bb06f562557978b03914a71 (diff)
uml: get rid of do_longjmp
do_longjmp used to be needed when UML didn't have its own implementation of setjmp and longjmp. They came from libc, and couldn't be called directly from kernel code, as the libc jmp_buf couldn't be imported there. do_longjmp was a userspace function which served to provide longjmp access to kernel code. This is gone, and a number of void * pointers can now be jmp_buf *. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/kernel')
-rw-r--r--arch/um/kernel/exec.c2
-rw-r--r--arch/um/kernel/mem.c2
-rw-r--r--arch/um/kernel/trap.c6
-rw-r--r--arch/um/kernel/uaccess.c2
4 files changed, 6 insertions, 6 deletions
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 0d260567fd1..25c50261755 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -75,7 +75,7 @@ long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
err = execve1(file, argv, env);
if (!err)
- do_longjmp(current->thread.exec_buf, 1);
+ UML_LONGJMP(current->thread.exec_buf, 1);
return err;
}
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index d2b11f24269..8456397f5f4 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -17,7 +17,7 @@
#include "as-layout.h"
#include "kern.h"
#include "mem_user.h"
-#include "uml_uaccess.h"
+#include "um_uaccess.h"
#include "os.h"
#include "linux/types.h"
#include "linux/string.h"
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index eac63fb6183..bd060551e61 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -149,7 +149,7 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
struct uml_pt_regs *regs)
{
struct siginfo si;
- void *catcher;
+ jmp_buf *catcher;
int err;
int is_write = FAULT_WRITE(fi);
unsigned long address = FAULT_ADDRESS(fi);
@@ -181,7 +181,7 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
return 0;
else if (catcher != NULL) {
current->thread.fault_addr = (void *) address;
- do_longjmp(catcher, 1);
+ UML_LONGJMP(catcher, 1);
}
else if (current->thread.fault_addr != NULL)
panic("fault_addr set but no fault catcher");
@@ -233,7 +233,7 @@ void relay_signal(int sig, struct uml_pt_regs *regs)
static void bus_handler(int sig, struct uml_pt_regs *regs)
{
if (current->thread.fault_catcher != NULL)
- do_longjmp(current->thread.fault_catcher, 1);
+ UML_LONGJMP(current->thread.fault_catcher, 1);
else relay_signal(sig, regs);
}
diff --git a/arch/um/kernel/uaccess.c b/arch/um/kernel/uaccess.c
index 054e3de0784..d7436aacd26 100644
--- a/arch/um/kernel/uaccess.c
+++ b/arch/um/kernel/uaccess.c
@@ -18,7 +18,7 @@ void __do_copy(void *to, const void *from, int n)
int __do_copy_to_user(void *to, const void *from, int n,
- void **fault_addr, void **fault_catcher)
+ void **fault_addr, jmp_buf **fault_catcher)
{
unsigned long fault;
int faulted;