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sparc32: switch to generic sys_execve()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-09-29 14:49:48 -04:00
parent ab3486813b
commit f7200d4c50
4 changed files with 4 additions and 49 deletions
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4
arch/sparc/include/asm/syscalls.h
View File

@ -8,8 +8,4 @@ extern asmlinkage long sparc_do_fork(unsigned long clone_flags,
struct pt_regs *regs,
unsigned long stack_size);
#ifndef __arch64__
extern asmlinkage int sparc_execve(struct pt_regs *regs);
#endif
#endif /* _SPARC64_SYSCALLS_H */

2
arch/sparc/include/asm/unistd.h
View File

@ -45,8 +45,8 @@
#define __ARCH_WANT_COMPAT_SYS_TIME
#define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#define __ARCH_WANT_SYS_EXECVE
#endif
#define __ARCH_WANT_SYS_EXECVE
/*
* "Conditional" syscalls

19
arch/sparc/kernel/entry.S
View File

@ -806,23 +806,10 @@ sys_nis_syscall:
call c_sys_nis_syscall
mov %l5, %o7
.align 4
.globl sys_execve
sys_execve:
mov %o7, %l5
add %sp, STACKFRAME_SZ, %o0 ! pt_regs *regs arg
call sparc_execve
mov %l5, %o7
.globl sunos_execv
sunos_execv:
st %g0, [%sp + STACKFRAME_SZ + PT_I2]
call sparc_execve
add %sp, STACKFRAME_SZ, %o0
b ret_sys_call
ld [%sp + STACKFRAME_SZ + PT_I0], %o0
.globl sunos_execv
b sys_execve
clr %i2
.align 4
.globl sys_sparc_pipe

28
arch/sparc/kernel/process_32.c
View File

@ -476,34 +476,6 @@ int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs)
return 1;
}
/*
* sparc_execve() executes a new program after the asm stub has set
* things up for us. This should basically do what I want it to.
*/
asmlinkage int sparc_execve(struct pt_regs *regs)
{
int error, base = 0;
struct filename *filename;
/* Check for indirect call. */
if(regs->u_regs[UREG_G1] == 0)
base = 1;
filename = getname((char __user *)regs->u_regs[base + UREG_I0]);
error = PTR_ERR(filename);
if(IS_ERR(filename))
goto out;
error = do_execve(filename->name,
(const char __user *const __user *)
regs->u_regs[base + UREG_I1],
(const char __user *const __user *)
regs->u_regs[base + UREG_I2],
regs);
putname(filename);
out:
return error;
}
unsigned long get_wchan(struct task_struct *task)
{
unsigned long pc, fp, bias = 0;