From 530550651fdfd548d25b6bd5ff4607803540508b Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 20 Oct 2012 13:14:08 -0400 Subject: [PATCH] tile: switch to generic sys_execve() Acked-by: Chris Metcalf Signed-off-by: Al Viro --- arch/tile/include/asm/elf.h | 1 + arch/tile/include/asm/processor.h | 1 + arch/tile/include/asm/syscalls.h | 3 ++- arch/tile/include/asm/unistd.h | 1 + arch/tile/kernel/intvec_32.S | 1 - arch/tile/kernel/intvec_64.S | 1 - arch/tile/kernel/process.c | 45 ------------------------------- arch/tile/kernel/sys.c | 1 - 8 files changed, 5 insertions(+), 49 deletions(-) diff --git a/arch/tile/include/asm/elf.h b/arch/tile/include/asm/elf.h index f8ccf08f6934..b73e1039c911 100644 --- a/arch/tile/include/asm/elf.h +++ b/arch/tile/include/asm/elf.h @@ -148,6 +148,7 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, #define compat_start_thread(regs, ip, usp) do { \ regs->pc = ptr_to_compat_reg((void *)(ip)); \ regs->sp = ptr_to_compat_reg((void *)(usp)); \ + single_step_execve(); \ } while (0) /* diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h index 9a83e531e843..879073e76586 100644 --- a/arch/tile/include/asm/processor.h +++ b/arch/tile/include/asm/processor.h @@ -211,6 +211,7 @@ static inline void start_thread(struct pt_regs *regs, { regs->pc = pc; regs->sp = usp; + single_step_execve(); } /* Free all resources held by a thread. */ diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h index 06f0464cfed9..0d52992f8e05 100644 --- a/arch/tile/include/asm/syscalls.h +++ b/arch/tile/include/asm/syscalls.h @@ -68,9 +68,10 @@ long _sys_sigaltstack(const stack_t __user *, stack_t __user *); long _sys_rt_sigreturn(void); long _sys_clone(unsigned long clone_flags, unsigned long newsp, void __user *parent_tid, void __user *child_tid); -long _sys_execve(const char __user *filename, +long sys_execve(const char __user *filename, const char __user *const __user *argv, const char __user *const __user *envp); +#define sys_execve sys_execve #include diff --git a/arch/tile/include/asm/unistd.h b/arch/tile/include/asm/unistd.h index 6e032a0a268e..dab827dc8acb 100644 --- a/arch/tile/include/asm/unistd.h +++ b/arch/tile/include/asm/unistd.h @@ -16,4 +16,5 @@ #define __ARCH_WANT_SYS_LLSEEK #endif #define __ARCH_WANT_SYS_NEWFSTATAT +#define __ARCH_WANT_SYS_EXECVE #include diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S index 58aad519b7d6..174b837ef926 100644 --- a/arch/tile/kernel/intvec_32.S +++ b/arch/tile/kernel/intvec_32.S @@ -1476,7 +1476,6 @@ STD_ENTRY_LOCAL(bad_intr) }; \ STD_ENDPROC(_##x) -PTREGS_SYSCALL(sys_execve, r3) PTREGS_SYSCALL(sys_sigaltstack, r2) PTREGS_SYSCALL_SIGRETURN(sys_rt_sigreturn, r0) PTREGS_SYSCALL(sys_cmpxchg_badaddr, r1) diff --git a/arch/tile/kernel/intvec_64.S b/arch/tile/kernel/intvec_64.S index f66bd5f67d44..283efedf67d6 100644 --- a/arch/tile/kernel/intvec_64.S +++ b/arch/tile/kernel/intvec_64.S @@ -1205,7 +1205,6 @@ STD_ENTRY_LOCAL(bad_intr) }; \ STD_ENDPROC(_##x) -PTREGS_SYSCALL(sys_execve, r3) PTREGS_SYSCALL(sys_sigaltstack, r2) PTREGS_SYSCALL_SIGRETURN(sys_rt_sigreturn, r0) #ifdef CONFIG_COMPAT diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c index da6e4d78da6e..58f8fd1f0bc2 100644 --- a/arch/tile/kernel/process.c +++ b/arch/tile/kernel/process.c @@ -594,51 +594,6 @@ SYSCALL_DEFINE5(clone, unsigned long, clone_flags, unsigned long, newsp, parent_tidptr, child_tidptr); } -/* - * sys_execve() executes a new program. - */ -SYSCALL_DEFINE4(execve, const char __user *, path, - const char __user *const __user *, argv, - const char __user *const __user *, envp, - struct pt_regs *, regs) -{ - long error; - struct filename *filename; - - filename = getname(path); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - error = do_execve(filename->name, argv, envp, regs); - putname(filename); - if (error == 0) - single_step_execve(); -out: - return error; -} - -#ifdef CONFIG_COMPAT -long compat_sys_execve(const char __user *path, - compat_uptr_t __user *argv, - compat_uptr_t __user *envp) -{ - long error; - struct filename *filename; - - filename = getname(path); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - error = compat_do_execve(filename->name, argv, envp, - current_pt_regs()); - putname(filename); - if (error == 0) - single_step_execve(); -out: - return error; -} -#endif - unsigned long get_wchan(struct task_struct *p) { struct KBacktraceIterator kbt; diff --git a/arch/tile/kernel/sys.c b/arch/tile/kernel/sys.c index b08095b402d6..359e76f68838 100644 --- a/arch/tile/kernel/sys.c +++ b/arch/tile/kernel/sys.c @@ -107,7 +107,6 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, #endif /* Call the trampolines to manage pt_regs where necessary. */ -#define sys_execve _sys_execve #define sys_sigaltstack _sys_sigaltstack #define sys_rt_sigreturn _sys_rt_sigreturn #define sys_clone _sys_clone