diff options
| author | Chen Liqin <liqin.chen@sunplusct.com> | 2009-08-30 12:33:30 +0800 |
|---|---|---|
| committer | Chen Liqin <liqin.chen@sunplusct.com> | 2009-08-30 12:33:30 +0800 |
| commit | cf52c468352993ca420fe0b4ada976dc1f614026 (patch) | |
| tree | 93d0cdc86189349a5eaf723a2ffc139d5a9806d2 /arch | |
| parent | 324f40fbb02ed9339ddbdc450ff8ba614a92a630 (diff) | |
score: add old syscall support
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/score/include/asm/unistd.h | 5 | ||||
| -rw-r--r-- | arch/score/kernel/entry.S | 13 | ||||
| -rw-r--r-- | arch/score/kernel/sys_score.c | 24 |
3 files changed, 40 insertions, 2 deletions
diff --git a/arch/score/include/asm/unistd.h b/arch/score/include/asm/unistd.h index 0d98b72f462a..4aa957364d4d 100644 --- a/arch/score/include/asm/unistd.h +++ b/arch/score/include/asm/unistd.h @@ -3,6 +3,11 @@ #define __ARCH_HAVE_MMU +#define __ARCH_WANT_SYSCALL_NO_AT +#define __ARCH_WANT_SYSCALL_NO_FLAGS +#define __ARCH_WANT_SYSCALL_OFF_T +#define __ARCH_WANT_SYSCALL_DEPRECATED + #include <asm-generic/unistd.h> #endif /* _ASM_SCORE_UNISTD_H */ diff --git a/arch/score/kernel/entry.S b/arch/score/kernel/entry.S index 10e859ddefd1..577abba3fac6 100644 --- a/arch/score/kernel/entry.S +++ b/arch/score/kernel/entry.S @@ -499,3 +499,16 @@ ENTRY(sys_sigaltstack) mv r4, r0 la r8, score_sigaltstack br r8 + +#ifdef __ARCH_WANT_SYSCALL_DEPRECATED +ENTRY(sys_fork) + mv r4, r0 + la r8, score_fork + br r8 + +ENTRY(sys_vfork) + mv r4, r0 + la r8, score_vfork + br r8 +#endif /* __ARCH_WANT_SYSCALL_DEPRECATED */ + diff --git a/arch/score/kernel/sys_score.c b/arch/score/kernel/sys_score.c index 61aff8a93443..001249469866 100644 --- a/arch/score/kernel/sys_score.c +++ b/arch/score/kernel/sys_score.c @@ -25,6 +25,7 @@ #include <linux/file.h> #include <linux/fs.h> +#include <linux/mm.h> #include <linux/mman.h> #include <linux/module.h> #include <linux/unistd.h> @@ -49,8 +50,7 @@ sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, } down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, - pgoff >> (PAGE_SHIFT - 12)); + error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); up_write(¤t->mm->mmap_sem); if (file) @@ -59,6 +59,19 @@ sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, return error; } +asmlinkage long +sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, + unsigned long flags, unsigned long fd, off_t pgoff) +{ + return sys_mmap2(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT); +} + +asmlinkage long +score_fork(struct pt_regs *regs) +{ + return do_fork(SIGCHLD, regs->regs[0], regs, 0, NULL, NULL); +} + /* * Clone a task - this clones the calling program thread. * This is called indirectly via a small wrapper @@ -81,6 +94,13 @@ score_clone(struct pt_regs *regs) parent_tidptr, child_tidptr); } +asmlinkage long +score_vfork(struct pt_regs *regs) +{ + return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, + regs->regs[0], regs, 0, NULL, NULL); +} + /* * sys_execve() executes a new program. * This is called indirectly via a small wrapper |