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authorStuart Menefy <stuart.menefy@st.com>2006-11-21 11:16:57 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-12-06 10:45:38 +0900
commitf0bc814cfbc212683c882e58b3d1afec6b3e3aa3 (patch)
tree8ad669003716a3c22fb43e9c2066dcc5e5e0ad2d /arch/sh/kernel/process.c
parent53644087a607040a56d883df612b588814a56f11 (diff)
downloadblackbird-op-linux-f0bc814cfbc212683c882e58b3d1afec6b3e3aa3.tar.gz
blackbird-op-linux-f0bc814cfbc212683c882e58b3d1afec6b3e3aa3.zip
sh: gcc4 support.
This fixes up the kernel for gcc4. The existing exception handlers needed some wrapping for pt_regs access, acessing the registers via a RELOC_HIDE() pointer. The strcpy() issues popped up here too, so add -ffreestanding and kill off the symbol export. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/process.c')
-rw-r--r--arch/sh/kernel/process.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index a52b13ac6b7f..f3e2631be144 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -385,10 +385,11 @@ struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *ne
asmlinkage int sys_fork(unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
#ifdef CONFIG_MMU
- return do_fork(SIGCHLD, regs.regs[15], &regs, 0, NULL, NULL);
+ return do_fork(SIGCHLD, regs->regs[15], regs, 0, NULL, NULL);
#else
/* fork almost works, enough to trick you into looking elsewhere :-( */
return -EINVAL;
@@ -398,11 +399,12 @@ asmlinkage int sys_fork(unsigned long r4, unsigned long r5,
asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
unsigned long parent_tidptr,
unsigned long child_tidptr,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
if (!newsp)
- newsp = regs.regs[15];
- return do_fork(clone_flags, newsp, &regs, 0,
+ newsp = regs->regs[15];
+ return do_fork(clone_flags, newsp, regs, 0,
(int __user *)parent_tidptr, (int __user *)child_tidptr);
}
@@ -418,9 +420,10 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
*/
asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
- return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.regs[15], &regs,
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+ return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->regs[15], regs,
0, NULL, NULL);
}
@@ -429,8 +432,9 @@ asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
*/
asmlinkage int sys_execve(char *ufilename, char **uargv,
char **uenvp, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
int error;
char *filename;
@@ -442,7 +446,7 @@ asmlinkage int sys_execve(char *ufilename, char **uargv,
error = do_execve(filename,
(char __user * __user *)uargv,
(char __user * __user *)uenvp,
- &regs);
+ regs);
if (error == 0) {
task_lock(current);
current->ptrace &= ~PT_DTRACE;
@@ -472,9 +476,7 @@ unsigned long get_wchan(struct task_struct *p)
return pc;
}
-asmlinkage void break_point_trap(unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+asmlinkage void break_point_trap(void)
{
/* Clear tracing. */
#if defined(CONFIG_CPU_SH4A)
@@ -492,8 +494,10 @@ asmlinkage void break_point_trap(unsigned long r4, unsigned long r5,
asmlinkage void break_point_trap_software(unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7,
- struct pt_regs regs)
+ struct pt_regs __regs)
{
- regs.pc -= 2;
+ struct pt_regs *regs = RELOC_HIDE(&__regs, 0);
+
+ regs->pc -= 2;
force_sig(SIGTRAP, current);
}
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