From ddf23e87a804cbf6fa3818076b33fe023cce09fd Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 11 Oct 2012 17:32:41 -0400 Subject: mn10300: switch to saner kernel_execve() semantics Signed-off-by: Al Viro --- arch/mn10300/Kconfig | 1 + arch/mn10300/include/asm/unistd.h | 1 - arch/mn10300/kernel/entry.S | 7 +------ 3 files changed, 2 insertions(+), 7 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 04669fac117b..72471744a912 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -9,6 +9,7 @@ config MN10300 select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER select GENERIC_CLOCKEVENTS select GENERIC_KERNEL_THREAD + select GENERIC_KERNEL_EXECVE select MODULES_USE_ELF_RELA config AM33_2 diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h index 55bbec1887e9..9711d51b0212 100644 --- a/arch/mn10300/include/asm/unistd.h +++ b/arch/mn10300/include/asm/unistd.h @@ -44,7 +44,6 @@ #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND #define __ARCH_WANT_SYS_EXECVE -#define __ARCH_WANT_KERNEL_EXECVE /* * "Conditional" syscalls diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S index 0c631d34c8d7..68fcab8f8f6f 100644 --- a/arch/mn10300/kernel/entry.S +++ b/arch/mn10300/kernel/entry.S @@ -60,13 +60,8 @@ ENTRY(ret_from_kernel_thread) mov (REG_D0,fp),d0 mov (REG_A0,fp),a0 calls (a0) - jmp sys_exit - -ENTRY(ret_from_kernel_execve) - add -12,d0 /* pt_regs -> frame */ - mov d0,sp - GET_THREAD_INFO a2 clr d0 + mov d0,(REG_D0,fp) jmp syscall_exit ############################################################################### -- cgit v1.2.3-58-ga151 From 1ea2a0160588582cd8414a8026d5b54f1705dfa1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 21 Oct 2012 16:43:13 -0400 Subject: mn10300: switch to generic fork/vfork/clone Signed-off-by: Al Viro --- arch/mn10300/include/asm/unistd.h | 3 +++ arch/mn10300/kernel/process.c | 33 +++++---------------------------- 2 files changed, 8 insertions(+), 28 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h index 9711d51b0212..cabf8ba73b27 100644 --- a/arch/mn10300/include/asm/unistd.h +++ b/arch/mn10300/include/asm/unistd.h @@ -44,6 +44,9 @@ #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND #define __ARCH_WANT_SYS_EXECVE +#define __ARCH_WANT_SYS_FORK +#define __ARCH_WANT_SYS_VFORK +#define __ARCH_WANT_SYS_CLONE /* * "Conditional" syscalls diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c index d0c671b6d9ff..5e0ef396458d 100644 --- a/arch/mn10300/kernel/process.c +++ b/arch/mn10300/kernel/process.c @@ -206,7 +206,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) */ int copy_thread(unsigned long clone_flags, unsigned long c_usp, unsigned long ustk_size, - struct task_struct *p, struct pt_regs *kregs) + struct task_struct *p, struct pt_regs *unused) { struct thread_info *ti = task_thread_info(p); struct pt_regs *c_regs; @@ -227,7 +227,7 @@ int copy_thread(unsigned long clone_flags, p->thread.wchan = p->thread.pc; p->thread.usp = c_usp; - if (unlikely(!kregs)) { + if (unlikely(p->flags & PF_KTHREAD)) { memset(c_regs, 0, sizeof(struct pt_regs)); c_regs->a0 = c_usp; /* function */ c_regs->d0 = ustk_size; /* argument */ @@ -236,8 +236,9 @@ int copy_thread(unsigned long clone_flags, p->thread.pc = (unsigned long) ret_from_kernel_thread; return 0; } - *c_regs = *kregs; - c_regs->sp = c_usp; + *c_regs = *current_pt_regs(); + if (c_usp) + c_regs->sp = c_usp; c_regs->epsw &= ~EPSW_FE; /* my FPU */ /* the new TLS pointer is passed in as arg #5 to sys_clone() */ @@ -249,30 +250,6 @@ int copy_thread(unsigned long clone_flags, return 0; } -/* - * clone a process - * - tlsptr is retrieved by copy_thread() from current_frame()->d3 - */ -asmlinkage long sys_clone(unsigned long clone_flags, unsigned long newsp, - int __user *parent_tidptr, int __user *child_tidptr, - int __user *tlsptr) -{ - return do_fork(clone_flags, newsp ?: current_frame()->sp, - current_frame(), 0, parent_tidptr, child_tidptr); -} - -asmlinkage long sys_fork(void) -{ - return do_fork(SIGCHLD, current_frame()->sp, - current_frame(), 0, NULL, NULL); -} - -asmlinkage long sys_vfork(void) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, current_frame()->sp, - current_frame(), 0, NULL, NULL); -} - unsigned long get_wchan(struct task_struct *p) { return p->thread.wchan; -- cgit v1.2.3-58-ga151 From afa86fc426ff7e7f5477f15da9c405d08d5cf790 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 22 Oct 2012 22:51:14 -0400 Subject: flagday: don't pass regs to copy_thread() Signed-off-by: Al Viro --- arch/alpha/kernel/process.c | 2 +- arch/arm/kernel/process.c | 2 +- arch/arm64/kernel/process.c | 3 +-- arch/avr32/kernel/process.c | 2 +- arch/blackfin/kernel/process.c | 6 +++--- arch/c6x/kernel/process.c | 2 +- arch/cris/arch-v10/kernel/process.c | 3 +-- arch/cris/arch-v32/kernel/process.c | 3 +-- arch/frv/kernel/process.c | 2 +- arch/h8300/kernel/process.c | 2 +- arch/hexagon/kernel/process.c | 3 +-- arch/ia64/kernel/process.c | 3 ++- arch/m32r/kernel/process.c | 2 +- arch/m68k/kernel/process.c | 3 +-- arch/microblaze/kernel/process.c | 3 +-- arch/mips/kernel/process.c | 4 ++-- arch/mn10300/kernel/process.c | 2 +- arch/openrisc/kernel/process.c | 2 +- arch/parisc/kernel/process.c | 5 ++--- arch/powerpc/kernel/process.c | 4 ++-- arch/s390/kernel/process.c | 3 +-- arch/score/kernel/process.c | 4 ++-- arch/sh/kernel/process_32.c | 3 +-- arch/sh/kernel/process_64.c | 5 ++--- arch/sparc/kernel/process_32.c | 5 ++--- arch/sparc/kernel/process_64.c | 4 ++-- arch/tile/kernel/process.c | 5 ++--- arch/um/kernel/process.c | 3 +-- arch/unicore32/kernel/process.c | 2 +- arch/x86/kernel/process_32.c | 3 +-- arch/x86/kernel/process_64.c | 3 +-- arch/xtensa/kernel/process.c | 3 +-- include/linux/sched.h | 2 +- kernel/fork.c | 2 +- 34 files changed, 45 insertions(+), 60 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index e9705bcc96f9..b5d0d0923699 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -241,7 +241,7 @@ release_thread(struct task_struct *dead_task) int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg, - struct task_struct *p, struct pt_regs *wontuse) + struct task_struct *p) { extern void ret_from_fork(void); extern void ret_from_kernel_thread(void); diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 4ab80bbb6d95..9800338c5d1b 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -376,7 +376,7 @@ asmlinkage void ret_from_fork(void) __asm__("ret_from_fork"); int copy_thread(unsigned long clone_flags, unsigned long stack_start, - unsigned long stk_sz, struct task_struct *p, struct pt_regs *unused) + unsigned long stk_sz, struct task_struct *p) { struct thread_info *thread = task_thread_info(p); struct pt_regs *childregs = task_pt_regs(p); diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 5a1335caf6f1..cb0956bc96ed 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -234,8 +234,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) asmlinkage void ret_from_fork(void) asm("ret_from_fork"); int copy_thread(unsigned long clone_flags, unsigned long stack_start, - unsigned long stk_sz, struct task_struct *p, - struct pt_regs *unused) + unsigned long stk_sz, struct task_struct *p) { struct pt_regs *childregs = task_pt_regs(p); unsigned long tls = p->thread.tp_value; diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c index 03d7aa4a4bc9..fd78f58ea79a 100644 --- a/arch/avr32/kernel/process.c +++ b/arch/avr32/kernel/process.c @@ -299,7 +299,7 @@ asmlinkage void syscall_return(void); int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + struct task_struct *p) { struct pt_regs *childregs = task_pt_regs(p); diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index e5ae8fcab438..582276efaaa4 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -141,14 +141,14 @@ asmlinkage int bfin_clone(unsigned long clone_flags, unsigned long newsp) int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long topstk, - struct task_struct *p, struct pt_regs *regs) + struct task_struct *p) { struct pt_regs *childregs; unsigned long *v; childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; v = ((unsigned long *)childregs) - 2; - if (unlikely(!regs)) { + if (unlikely(p->flags & PF_KTHREAD)) { memset(childregs, 0, sizeof(struct pt_regs)); v[0] = usp; v[1] = topstk; @@ -157,7 +157,7 @@ copy_thread(unsigned long clone_flags, __asm__ __volatile__("%0 = syscfg;":"=da"(childregs->syscfg):); p->thread.usp = 0; } else { - *childregs = *regs; + *childregs = *current_pt_regs(); childregs->r0 = 0; p->thread.usp = usp ? : rdusp(); v[0] = v[1] = 0; diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c index a3f91895e8b4..6434df476f77 100644 --- a/arch/c6x/kernel/process.c +++ b/arch/c6x/kernel/process.c @@ -139,7 +139,7 @@ void start_thread(struct pt_regs *regs, unsigned int pc, unsigned long usp) */ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long ustk_size, - struct task_struct *p, struct pt_regs *unused) + struct task_struct *p) { struct pt_regs *childregs; diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c index 520547c8b196..b1018750cffb 100644 --- a/arch/cris/arch-v10/kernel/process.c +++ b/arch/cris/arch-v10/kernel/process.c @@ -94,8 +94,7 @@ asmlinkage void ret_from_fork(void); asmlinkage void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { struct pt_regs *childregs = task_pt_regs(p); struct switch_stack *swstack = ((struct switch_stack *)childregs) - 1; diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c index 331e70252df0..2b23ef0e4452 100644 --- a/arch/cris/arch-v32/kernel/process.c +++ b/arch/cris/arch-v32/kernel/process.c @@ -109,8 +109,7 @@ extern asmlinkage void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { struct pt_regs *childregs = task_pt_regs(p); struct switch_stack *swstack = ((struct switch_stack *) childregs) - 1; diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c index 0039bf77b192..23916b2a12a2 100644 --- a/arch/frv/kernel/process.c +++ b/arch/frv/kernel/process.c @@ -144,7 +144,7 @@ inline unsigned long user_stack(const struct pt_regs *regs) */ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + struct task_struct *p) { struct pt_regs *childregs; diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c index b0fb4054aee5..b609f63f1590 100644 --- a/arch/h8300/kernel/process.c +++ b/arch/h8300/kernel/process.c @@ -129,7 +129,7 @@ void flush_thread(void) int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long topstk, - struct task_struct * p, struct pt_regs *unused) + struct task_struct * p) { struct pt_regs * childregs; diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c index 36dce17ed25c..06ae9ffcabd5 100644 --- a/arch/hexagon/kernel/process.c +++ b/arch/hexagon/kernel/process.c @@ -87,8 +87,7 @@ unsigned long thread_saved_pc(struct task_struct *tsk) * Copy architecture-specific thread state */ int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, struct task_struct *p, - struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { struct thread_info *ti = task_thread_info(p); struct hexagon_switch_stack *ss; diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 25543a295ad9..31360cbbd5f8 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -393,12 +393,13 @@ ia64_load_extra (struct task_struct *task) int copy_thread(unsigned long clone_flags, unsigned long user_stack_base, unsigned long user_stack_size, - struct task_struct *p, struct pt_regs *regs) + struct task_struct *p) { extern char ia64_ret_from_clone; struct switch_stack *child_stack, *stack; unsigned long rbs, child_rbs, rbs_size; struct pt_regs *child_ptregs; + struct pt_regs *regs = current_pt_regs(); int retval = 0; child_ptregs = (struct pt_regs *) ((unsigned long) p + IA64_STK_OFFSET) - 1; diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c index c37e9a9a8f27..765d0f57c787 100644 --- a/arch/m32r/kernel/process.c +++ b/arch/m32r/kernel/process.c @@ -192,7 +192,7 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) } int copy_thread(unsigned long clone_flags, unsigned long spu, - unsigned long arg, struct task_struct *tsk, struct pt_regs *unused) + unsigned long arg, struct task_struct *tsk) { struct pt_regs *childregs = task_pt_regs(tsk); extern void ret_from_fork(void); diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index aa9b11000273..9a3df4df73cc 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -154,8 +154,7 @@ asmlinkage int m68k_clone(struct pt_regs *regs) } int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct * p, struct pt_regs * unused) + unsigned long arg, struct task_struct *p) { struct fork_frame { struct switch_stack sw; diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index a5fed8db7263..40823fd1db0b 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -120,8 +120,7 @@ void flush_thread(void) } int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { struct pt_regs *childregs = task_pt_regs(p); struct thread_info *ti = task_thread_info(p); diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index d13720ac656f..38097652d62d 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -114,10 +114,10 @@ void flush_thread(void) } int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct thread_info *ti = task_thread_info(p); - struct pt_regs *childregs; + struct pt_regs *childregs, *regs = current_pt_regs(); unsigned long childksp; p->set_child_tid = p->clear_child_tid = NULL; diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c index 5e0ef396458d..eb09f5a552ff 100644 --- a/arch/mn10300/kernel/process.c +++ b/arch/mn10300/kernel/process.c @@ -206,7 +206,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) */ int copy_thread(unsigned long clone_flags, unsigned long c_usp, unsigned long ustk_size, - struct task_struct *p, struct pt_regs *unused) + struct task_struct *p) { struct thread_info *ti = task_thread_info(p); struct pt_regs *c_regs; diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c index 6b853668369b..00c233bf0d06 100644 --- a/arch/openrisc/kernel/process.c +++ b/arch/openrisc/kernel/process.c @@ -142,7 +142,7 @@ extern asmlinkage void ret_from_fork(void); int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct pt_regs *userregs; struct pt_regs *kregs; diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index 9753ecf49a06..d13507246c5d 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -204,10 +204,9 @@ int dump_task_fpu (struct task_struct *tsk, elf_fpregset_t *r) int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { - struct pt_regs * cregs = &(p->thread.regs); + struct pt_regs *cregs = &(p->thread.regs); void *stack = task_stack_page(p); /* We have to use void * instead of a function pointer, because diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index a31437567631..81430674e71c 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -733,8 +733,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) extern unsigned long dscr_default; /* defined in arch/powerpc/kernel/sysfs.c */ int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, struct task_struct *p, - struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct pt_regs *childregs, *kregs; extern void ret_from_fork(void); @@ -759,6 +758,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, ti->flags |= _TIF_RESTOREALL; f = ret_from_kernel_thread; } else { + struct pt_regs *regs = current_pt_regs(); CHECK_FULL_REGS(regs); *childregs = *regs; if (usp) diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index e37677796a09..536d64579d9a 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -117,8 +117,7 @@ void release_thread(struct task_struct *dead_task) } int copy_thread(unsigned long clone_flags, unsigned long new_stackp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { struct thread_info *ti; struct fake_frame diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c index f96379a5aee0..79568466b578 100644 --- a/arch/score/kernel/process.c +++ b/arch/score/kernel/process.c @@ -87,11 +87,11 @@ void flush_thread(void) {} * set up the kernel stack and exception frames for a new process */ int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs = task_pt_regs(p); + struct pt_regs *regs = current_pt_regs(); p->thread.reg0 = (unsigned long) childregs; if (unlikely(p->flags & PF_KTHREAD)) { diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 1786d16b6c64..73eb66fc6253 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -128,8 +128,7 @@ asmlinkage void ret_from_fork(void); asmlinkage void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs; diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c index d5c86a8a3849..e611c85144b1 100644 --- a/arch/sh/kernel/process_64.c +++ b/arch/sh/kernel/process_64.c @@ -371,10 +371,9 @@ asmlinkage void ret_from_fork(void); asmlinkage void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { - struct pt_regs *childregs; + struct pt_regs *childregs, *regs = current_pt_regs(); #ifdef CONFIG_SH_FPU /* can't happen for a kernel thread */ diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index bf4c6addce7b..ecde946ef834 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -319,11 +319,10 @@ extern void ret_from_fork(void); extern void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct thread_info *ti = task_thread_info(p); - struct pt_regs *childregs; + struct pt_regs *childregs, *regs = current_pt_regs(); char *new_stack; #ifndef CONFIG_SMP diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index dff54f46728d..58ef19e7e82f 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -622,10 +622,10 @@ asmlinkage long sparc_do_fork(unsigned long clone_flags, * Child --> %o0 == parents pid, %o1 == 1 */ int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct thread_info *t = task_thread_info(p); + struct pt_regs *regs = current_pt_regs(); struct sparc_stackf *parent_sf; unsigned long child_stack_sz; char *child_trap_frame; diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index 267936b51b59..0e5661e7d00d 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -157,10 +157,9 @@ void arch_release_thread_info(struct thread_info *info) static void save_arch_state(struct thread_struct *t); int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { - struct pt_regs *childregs = task_pt_regs(p); + struct pt_regs *childregs = task_pt_regs(p), *regs = current_pt_regs(); unsigned long ksp; unsigned long *callee_regs; diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index c502c804e8bb..b462b13c5bae 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -161,8 +161,7 @@ void fork_handler(void) } int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, struct task_struct * p, - struct pt_regs *regs) + unsigned long arg, struct task_struct * p) { void (*handler)(void); int kthread = current->flags & PF_KTHREAD; diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c index 79e44e8ae31c..62bad9fed03e 100644 --- a/arch/unicore32/kernel/process.c +++ b/arch/unicore32/kernel/process.c @@ -262,7 +262,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread"); int copy_thread(unsigned long clone_flags, unsigned long stack_start, - unsigned long stk_sz, struct task_struct *p, struct pt_regs *unused) + unsigned long stk_sz, struct task_struct *p) { struct thread_info *thread = task_thread_info(p); struct pt_regs *childregs = task_pt_regs(p); diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 16efa974532b..b5a8905785e6 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -128,8 +128,7 @@ void release_thread(struct task_struct *dead_task) } int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long arg, struct task_struct *p) { struct pt_regs *childregs = task_pt_regs(p); struct task_struct *tsk; diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 74aac76c6e34..6e68a6194965 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -146,8 +146,7 @@ static inline u32 read_32bit_tls(struct task_struct *t, int tls) } int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long arg, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { int err; struct pt_regs *childregs; diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index 0036c14739f8..1accf28da5f5 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -199,8 +199,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) */ int copy_thread(unsigned long clone_flags, unsigned long usp_thread_fn, - unsigned long thread_fn_arg, - struct task_struct *p, struct pt_regs *unused) + unsigned long thread_fn_arg, struct task_struct *p) { struct pt_regs *childregs = task_pt_regs(p); diff --git a/include/linux/sched.h b/include/linux/sched.h index c57249782e48..78a2ae3470df 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2271,7 +2271,7 @@ extern void mm_release(struct task_struct *, struct mm_struct *); extern struct mm_struct *dup_mm(struct task_struct *tsk); extern int copy_thread(unsigned long, unsigned long, unsigned long, - struct task_struct *, struct pt_regs *); + struct task_struct *); extern void flush_thread(void); extern void exit_thread(void); diff --git a/kernel/fork.c b/kernel/fork.c index 27a337549dab..d96a562b1311 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1320,7 +1320,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, retval = copy_io(clone_flags, p); if (retval) goto bad_fork_cleanup_namespaces; - retval = copy_thread(clone_flags, stack_start, stack_size, p, regs); + retval = copy_thread(clone_flags, stack_start, stack_size, p); if (retval) goto bad_fork_cleanup_io; -- cgit v1.2.3-58-ga151 From 4f4202fe5ae9a43e59303f20d700571f695d7b1b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 5 Nov 2012 12:59:15 -0500 Subject: unify default ptrace_signal_deliver Signed-off-by: Al Viro --- arch/alpha/include/asm/signal.h | 3 --- arch/arm/include/asm/signal.h | 1 - arch/avr32/include/asm/signal.h | 2 -- arch/cris/include/asm/signal.h | 6 ------ arch/h8300/include/asm/signal.h | 2 -- arch/ia64/include/asm/signal.h | 2 -- arch/m32r/include/asm/signal.h | 4 ---- arch/m68k/include/asm/signal.h | 5 ++--- arch/mips/include/asm/signal.h | 2 -- arch/mn10300/include/asm/signal.h | 4 ---- arch/parisc/include/asm/signal.h | 2 -- arch/powerpc/include/asm/signal.h | 2 -- arch/s390/include/asm/signal.h | 2 -- arch/sparc/include/asm/signal.h | 2 -- arch/x86/include/asm/signal.h | 2 -- arch/xtensa/include/asm/signal.h | 1 - include/asm-generic/signal.h | 2 -- include/linux/ptrace.h | 4 ++++ 18 files changed, 6 insertions(+), 42 deletions(-) (limited to 'arch/mn10300') diff --git a/arch/alpha/include/asm/signal.h b/arch/alpha/include/asm/signal.h index a9388300abb1..45552862cc10 100644 --- a/arch/alpha/include/asm/signal.h +++ b/arch/alpha/include/asm/signal.h @@ -164,9 +164,6 @@ struct sigstack { #ifdef __KERNEL__ #include - -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif #endif diff --git a/arch/arm/include/asm/signal.h b/arch/arm/include/asm/signal.h index 5a7963dbd3fb..9a0ea6ab988f 100644 --- a/arch/arm/include/asm/signal.h +++ b/arch/arm/include/asm/signal.h @@ -35,5 +35,4 @@ struct k_sigaction { }; #include -#define ptrace_signal_deliver(regs, cookie) do { } while (0) #endif diff --git a/arch/avr32/include/asm/signal.h b/arch/avr32/include/asm/signal.h index 4d502fd6bad3..9326d182e9e5 100644 --- a/arch/avr32/include/asm/signal.h +++ b/arch/avr32/include/asm/signal.h @@ -37,6 +37,4 @@ struct k_sigaction { #include #undef __HAVE_ARCH_SIG_BITOPS -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif diff --git a/arch/cris/include/asm/signal.h b/arch/cris/include/asm/signal.h index ea6af9aad76c..72dbbf59dfae 100644 --- a/arch/cris/include/asm/signal.h +++ b/arch/cris/include/asm/signal.h @@ -152,12 +152,6 @@ typedef struct sigaltstack { #ifdef __KERNEL__ #include - -/* here we could define asm-optimized sigaddset, sigdelset etc. operations. - * if we don't, generic ones are used from linux/signal.h - */ -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* __KERNEL__ */ #endif diff --git a/arch/h8300/include/asm/signal.h b/arch/h8300/include/asm/signal.h index fd8b66e40dca..c43c0a7d2c2e 100644 --- a/arch/h8300/include/asm/signal.h +++ b/arch/h8300/include/asm/signal.h @@ -154,8 +154,6 @@ typedef struct sigaltstack { #include #undef __HAVE_ARCH_SIG_BITOPS -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* __KERNEL__ */ #endif /* _H8300_SIGNAL_H */ diff --git a/arch/ia64/include/asm/signal.h b/arch/ia64/include/asm/signal.h index aecda5b9eb4e..3a1b20e74c5c 100644 --- a/arch/ia64/include/asm/signal.h +++ b/arch/ia64/include/asm/signal.h @@ -38,7 +38,5 @@ struct k_sigaction { # include -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - # endif /* !__ASSEMBLY__ */ #endif /* _ASM_IA64_SIGNAL_H */ diff --git a/arch/m32r/include/asm/signal.h b/arch/m32r/include/asm/signal.h index ea5f95e4079e..e4d2e2ad5f1e 100644 --- a/arch/m32r/include/asm/signal.h +++ b/arch/m32r/include/asm/signal.h @@ -149,10 +149,6 @@ typedef struct sigaltstack { #undef __HAVE_ARCH_SIG_BITOPS -struct pt_regs; - -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* __KERNEL__ */ #endif /* _ASM_M32R_SIGNAL_H */ diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h index 2df26b57c26a..eb51a5241187 100644 --- a/arch/m68k/include/asm/signal.h +++ b/arch/m68k/include/asm/signal.h @@ -86,11 +86,10 @@ static inline int sigfindinword(unsigned long word) #endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */ -#ifdef __uClinux__ -#define ptrace_signal_deliver(regs, cookie) do { } while (0) -#else +#ifndef __uClinux__ struct pt_regs; extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie); +#define ptrace_signal_deliver ptrace_signal_deliver #endif /* __uClinux__ */ #endif /* _M68K_SIGNAL_H */ diff --git a/arch/mips/include/asm/signal.h b/arch/mips/include/asm/signal.h index 880240dff8b7..cf4a08062d1d 100644 --- a/arch/mips/include/asm/signal.h +++ b/arch/mips/include/asm/signal.h @@ -21,6 +21,4 @@ #include #include -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* _ASM_SIGNAL_H */ diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h index f9668ec3040c..d280e9780793 100644 --- a/arch/mn10300/include/asm/signal.h +++ b/arch/mn10300/include/asm/signal.h @@ -45,8 +45,4 @@ struct k_sigaction { }; #include - -struct pt_regs; -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* _ASM_SIGNAL_H */ diff --git a/arch/parisc/include/asm/signal.h b/arch/parisc/include/asm/signal.h index 21abf4fc169a..0fdb3c835952 100644 --- a/arch/parisc/include/asm/signal.h +++ b/arch/parisc/include/asm/signal.h @@ -34,8 +34,6 @@ struct k_sigaction { struct sigaction sa; }; -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #include #endif /* !__ASSEMBLY */ diff --git a/arch/powerpc/include/asm/signal.h b/arch/powerpc/include/asm/signal.h index 189998bb61c4..a101637725a2 100644 --- a/arch/powerpc/include/asm/signal.h +++ b/arch/powerpc/include/asm/signal.h @@ -3,6 +3,4 @@ #include -struct pt_regs; -#define ptrace_signal_deliver(regs, cookie) do { } while (0) #endif /* _ASM_POWERPC_SIGNAL_H */ diff --git a/arch/s390/include/asm/signal.h b/arch/s390/include/asm/signal.h index bffdbdd5b3d7..db7ddfaf5b79 100644 --- a/arch/s390/include/asm/signal.h +++ b/arch/s390/include/asm/signal.h @@ -39,6 +39,4 @@ struct k_sigaction { struct sigaction sa; }; -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif diff --git a/arch/sparc/include/asm/signal.h b/arch/sparc/include/asm/signal.h index d243c2ae02d2..77b85850d543 100644 --- a/arch/sparc/include/asm/signal.h +++ b/arch/sparc/include/asm/signal.h @@ -26,7 +26,5 @@ struct k_sigaction { void __user *ka_restorer; }; -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* !(__ASSEMBLY__) */ #endif /* !(__SPARC_SIGNAL_H) */ diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h index 323973f4abf1..0dba8b7a6ac7 100644 --- a/arch/x86/include/asm/signal.h +++ b/arch/x86/include/asm/signal.h @@ -260,8 +260,6 @@ struct pt_regs; #endif /* !__i386__ */ -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ diff --git a/arch/xtensa/include/asm/signal.h b/arch/xtensa/include/asm/signal.h index 72fd44c85b70..6f586bd90e18 100644 --- a/arch/xtensa/include/asm/signal.h +++ b/arch/xtensa/include/asm/signal.h @@ -27,7 +27,6 @@ struct k_sigaction { }; #include -#define ptrace_signal_deliver(regs, cookie) do { } while (0) #endif /* __ASSEMBLY__ */ #endif /* _XTENSA_SIGNAL_H */ diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h index 98caa306122a..d840c90a157a 100644 --- a/include/asm-generic/signal.h +++ b/include/asm-generic/signal.h @@ -10,7 +10,5 @@ #include #undef __HAVE_ARCH_SIG_BITOPS -#define ptrace_signal_deliver(regs, cookie) do { } while (0) - #endif /* __ASSEMBLY__ */ #endif /* _ASM_GENERIC_SIGNAL_H */ diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index e0ff4689d35a..7aefbae2452e 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -329,6 +329,10 @@ static inline void user_single_step_siginfo(struct task_struct *tsk, #define current_pt_regs() task_pt_regs(current) #endif +#ifndef ptrace_signal_deliver +#define ptrace_signal_deliver(regs, cookie) do { } while (0) +#endif + extern int task_current_syscall(struct task_struct *target, long *callno, unsigned long args[6], unsigned int maxargs, unsigned long *sp, unsigned long *pc); -- cgit v1.2.3-58-ga151