mirror of https://gitee.com/openkylin/linux.git
41 lines
949 B
C
41 lines
949 B
C
/*
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* This file contains various random system calls that
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* have a non-standard calling sequence on the Linux/i386
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* platform.
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*/
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <linux/fs.h>
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#include <linux/smp.h>
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#include <linux/sem.h>
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#include <linux/msg.h>
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#include <linux/shm.h>
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#include <linux/stat.h>
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#include <linux/syscalls.h>
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#include <linux/mman.h>
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#include <linux/file.h>
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#include <linux/utsname.h>
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#include <linux/ipc.h>
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#include <linux/uaccess.h>
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#include <linux/unistd.h>
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#include <asm/syscalls.h>
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/*
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* Do a system call from kernel instead of calling sys_execve so we
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* end up with proper pt_regs.
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*/
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int kernel_execve(const char *filename,
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const char *const argv[],
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const char *const envp[])
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{
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long __res;
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asm volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx"
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: "=a" (__res)
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: "0" (__NR_execve), "ri" (filename), "c" (argv), "d" (envp) : "memory");
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return __res;
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}
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