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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2012-10-14 15:53:04 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-19 14:28:40 -0400 |
| commit | 71b4ecc3d8056b2ed5cbc0d77af13fed38bcac49 (patch) | |
| tree | f0d90a94eeda0ff445637fd70c61ad3484adc0c6 /arch/ia64 | |
| parent | ia64: switch to generic kernel_thread()/kernel_execve() (diff) | |
| download | linux-dev-71b4ecc3d8056b2ed5cbc0d77af13fed38bcac49.tar.xz linux-dev-71b4ecc3d8056b2ed5cbc0d77af13fed38bcac49.zip | |
ia64: switch to generic sys_execve()
Acked-by: Tony Luck <tony.luck@intel.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/include/asm/unistd.h | 1 | ||||
| -rw-r--r-- | arch/ia64/kernel/entry.S | 4 | ||||
| -rw-r--r-- | arch/ia64/kernel/process.c | 19 |
3 files changed, 2 insertions, 22 deletions
diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h index 8b3ff2f5b861..1574bca86138 100644 --- a/arch/ia64/include/asm/unistd.h +++ b/arch/ia64/include/asm/unistd.h @@ -29,6 +29,7 @@ #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND +#define __ARCH_WANT_SYS_EXECVE #if !defined(__ASSEMBLY__) && !defined(ASSEMBLER) diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index 0dea684e1905..940a67263629 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -61,14 +61,13 @@ ENTRY(ia64_execve) * Allocate 8 input registers since ptrace() may clobber them */ .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8) - alloc loc1=ar.pfs,8,2,4,0 + alloc loc1=ar.pfs,8,2,3,0 mov loc0=rp .body mov out0=in0 // filename ;; // stop bit between alloc and call mov out1=in1 // argv mov out2=in2 // envp - add out3=16,sp // regs br.call.sptk.many rp=sys_execve .ret0: cmp4.ge p6,p7=r8,r0 @@ -76,7 +75,6 @@ ENTRY(ia64_execve) sxt4 r8=r8 // return 64-bit result ;; stf.spill [sp]=f0 -(p6) cmp.ne pKStk,pUStk=r0,r0 // a successful execve() lands us in user-mode... mov rp=loc0 (p6) mov ar.pfs=r0 // clear ar.pfs on success (p7) br.ret.sptk.many rp diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 37686dbfd264..25543a295ad9 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -617,25 +617,6 @@ dump_fpu (struct pt_regs *pt, elf_fpregset_t dst) return 1; /* f0-f31 are always valid so we always return 1 */ } -long -sys_execve (const char __user *filename, - const char __user *const __user *argv, - const char __user *const __user *envp, - struct pt_regs *regs) -{ - struct filename *fname; - int error; - - fname = getname(filename); - error = PTR_ERR(fname); - if (IS_ERR(fname)) - goto out; - error = do_execve(fname->name, argv, envp, regs); - putname(fname); -out: - return error; -} - /* * Flush thread state. This is called when a thread does an execve(). */ |