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author | Stuart Menefy <stuart.menefy@st.com> | 2006-11-21 11:16:57 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2006-12-06 10:45:38 +0900 |
commit | f0bc814cfbc212683c882e58b3d1afec6b3e3aa3 (patch) | |
tree | 8ad669003716a3c22fb43e9c2066dcc5e5e0ad2d /arch/sh/kernel/process.c | |
parent | 53644087a607040a56d883df612b588814a56f11 (diff) | |
download | op-kernel-dev-f0bc814cfbc212683c882e58b3d1afec6b3e3aa3.zip op-kernel-dev-f0bc814cfbc212683c882e58b3d1afec6b3e3aa3.tar.gz |
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.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index a52b13a..f3e2631 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], ®s, 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, ®s, 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], ®s, + 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, - ®s); + 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); } |