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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 00:22:13 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 00:22:13 +0400 |
commit | 9977d9b379cb77e0f67bd6f4563618106e58e11d (patch) | |
tree | 0191accfddf578edb52c69c933d64521e3dce297 /arch/sh/include | |
parent | cf4af01221579a4e895f43dbfc47598fbfc5a731 (diff) | |
parent | 541880d9a2c7871f6370071d55aa6662d329c51e (diff) | |
download | linux-9977d9b379cb77e0f67bd6f4563618106e58e11d.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull big execve/kernel_thread/fork unification series from Al Viro:
"All architectures are converted to new model. Quite a bit of that
stuff is actually shared with architecture trees; in such cases it's
literally shared branch pulled by both, not a cherry-pick.
A lot of ugliness and black magic is gone (-3KLoC total in this one):
- kernel_thread()/kernel_execve()/sys_execve() redesign.
We don't do syscalls from kernel anymore for either kernel_thread()
or kernel_execve():
kernel_thread() is essentially clone(2) with callback run before we
return to userland, the callbacks either never return or do
successful do_execve() before returning.
kernel_execve() is a wrapper for do_execve() - it doesn't need to
do transition to user mode anymore.
As a result kernel_thread() and kernel_execve() are
arch-independent now - they live in kernel/fork.c and fs/exec.c
resp. sys_execve() is also in fs/exec.c and it's completely
architecture-independent.
- daemonize() is gone, along with its parts in fs/*.c
- struct pt_regs * is no longer passed to do_fork/copy_process/
copy_thread/do_execve/search_binary_handler/->load_binary/do_coredump.
- sys_fork()/sys_vfork()/sys_clone() unified; some architectures
still need wrappers (ones with callee-saved registers not saved in
pt_regs on syscall entry), but the main part of those suckers is in
kernel/fork.c now."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (113 commits)
do_coredump(): get rid of pt_regs argument
print_fatal_signal(): get rid of pt_regs argument
ptrace_signal(): get rid of unused arguments
get rid of ptrace_signal_deliver() arguments
new helper: signal_pt_regs()
unify default ptrace_signal_deliver
flagday: kill pt_regs argument of do_fork()
death to idle_regs()
don't pass regs to copy_process()
flagday: don't pass regs to copy_thread()
bfin: switch to generic vfork, get rid of pointless wrappers
xtensa: switch to generic clone()
openrisc: switch to use of generic fork and clone
unicore32: switch to generic clone(2)
score: switch to generic fork/vfork/clone
c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone()
take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h
mn10300: switch to generic fork/vfork/clone
h8300: switch to generic fork/vfork/clone
tile: switch to generic clone()
...
Conflicts:
arch/microblaze/include/asm/Kbuild
Diffstat (limited to 'arch/sh/include')
-rw-r--r-- | arch/sh/include/asm/processor_32.h | 5 | ||||
-rw-r--r-- | arch/sh/include/asm/processor_64.h | 5 | ||||
-rw-r--r-- | arch/sh/include/asm/syscalls_32.h | 14 | ||||
-rw-r--r-- | arch/sh/include/asm/syscalls_64.h | 17 | ||||
-rw-r--r-- | arch/sh/include/asm/unistd.h | 4 |
5 files changed, 4 insertions, 41 deletions
diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h index b6311fd2d066..b1320d55ca30 100644 --- a/arch/sh/include/asm/processor_32.h +++ b/arch/sh/include/asm/processor_32.h @@ -126,11 +126,6 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned lo /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); -/* - * create a kernel thread without removing it from tasklists - */ -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - /* Copy and release all segment info associated with a VM */ #define copy_segments(p, mm) do { } while(0) #define release_segments(mm) do { } while(0) diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h index cd6029fb2c01..1ee8946f0952 100644 --- a/arch/sh/include/asm/processor_64.h +++ b/arch/sh/include/asm/processor_64.h @@ -159,11 +159,6 @@ struct mm_struct; /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); -/* - * create a kernel thread without removing it from tasklists - */ -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - /* Copy and release all segment info associated with a VM */ #define copy_segments(p, mm) do { } while (0) diff --git a/arch/sh/include/asm/syscalls_32.h b/arch/sh/include/asm/syscalls_32.h index 6c1fa559753c..cc25485996bb 100644 --- a/arch/sh/include/asm/syscalls_32.h +++ b/arch/sh/include/asm/syscalls_32.h @@ -9,20 +9,6 @@ struct pt_regs; -asmlinkage int sys_fork(unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs __regs); -asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, - unsigned long parent_tidptr, - unsigned long child_tidptr, - struct pt_regs __regs); -asmlinkage int sys_vfork(unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs __regs); -asmlinkage int sys_execve(const char __user *ufilename, - const char __user *const __user *uargv, - const char __user *const __user *uenvp, - unsigned long r7, struct pt_regs __regs); asmlinkage int sys_sigsuspend(old_sigset_t mask); asmlinkage int sys_sigaction(int sig, const struct old_sigaction __user *act, struct old_sigaction __user *oact); diff --git a/arch/sh/include/asm/syscalls_64.h b/arch/sh/include/asm/syscalls_64.h index ee519f41d950..d62e8eb22f74 100644 --- a/arch/sh/include/asm/syscalls_64.h +++ b/arch/sh/include/asm/syscalls_64.h @@ -9,23 +9,6 @@ struct pt_regs; -asmlinkage int sys_fork(unsigned long r2, unsigned long r3, - unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs *pregs); -asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, - unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs *pregs); -asmlinkage int sys_vfork(unsigned long r2, unsigned long r3, - unsigned long r4, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs *pregs); -asmlinkage int sys_execve(const char *ufilename, char **uargv, - char **uenvp, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs *pregs); - /* Misc syscall related bits */ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs); asmlinkage void do_syscall_trace_leave(struct pt_regs *regs); diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h index 38956dfa76f7..43d3f26b2eab 100644 --- a/arch/sh/include/asm/unistd.h +++ b/arch/sh/include/asm/unistd.h @@ -28,6 +28,10 @@ # define __ARCH_WANT_SYS_SIGPENDING # define __ARCH_WANT_SYS_SIGPROCMASK # define __ARCH_WANT_SYS_RT_SIGACTION +# define __ARCH_WANT_SYS_EXECVE +# define __ARCH_WANT_SYS_FORK +# define __ARCH_WANT_SYS_VFORK +# define __ARCH_WANT_SYS_CLONE /* * "Conditional" syscalls |