diff options
author | Chris Metcalf <cmetcalf@tilera.com> | 2010-10-14 18:34:33 (GMT) |
---|---|---|
committer | Chris Metcalf <cmetcalf@tilera.com> | 2010-10-14 18:34:33 (GMT) |
commit | d929b6aeaacbe78cbfef4a80e3eed1bf0464d984 (patch) | |
tree | 5f121a845d616a3926768c2fa1b25c4ae417d9c2 /arch/tile/include/asm | |
parent | ce0ecc8abfa9904e27a5f3ac4dd83398b134278d (diff) | |
download | linux-fsl-qoriq-d929b6aeaacbe78cbfef4a80e3eed1bf0464d984.tar.xz |
arch/tile: Use <asm-generic/syscalls.h>
With this change we now include <asm-generic/syscalls.h> into the "tile"
version of the header. To take full advantage of the prototypes there,
we also change our naming convention for "struct pt_regs *" syscalls so
that, e.g., _sys_execve() is the "true" syscall entry, which sets the
appropriate register to point to the pt_regs before calling sys_execve().
While doing this I realized I no longer needed the fork and vfork
entry point stubs, since those functions aren't in the generic
syscall ABI, so I removed them as well.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/include/asm')
-rw-r--r-- | arch/tile/include/asm/compat.h | 15 | ||||
-rw-r--r-- | arch/tile/include/asm/syscalls.h | 73 |
2 files changed, 30 insertions, 58 deletions
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h index 8b60ec8..c3ae570 100644 --- a/arch/tile/include/asm/compat.h +++ b/arch/tile/include/asm/compat.h @@ -216,15 +216,16 @@ struct compat_siginfo; struct compat_sigaltstack; long compat_sys_execve(const char __user *path, const compat_uptr_t __user *argv, - const compat_uptr_t __user *envp); + const compat_uptr_t __user *envp, struct pt_regs *); long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act, struct compat_sigaction __user *oact, size_t sigsetsize); long compat_sys_rt_sigqueueinfo(int pid, int sig, struct compat_siginfo __user *uinfo); -long compat_sys_rt_sigreturn(void); +long compat_sys_rt_sigreturn(struct pt_regs *); long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr, - struct compat_sigaltstack __user *uoss_ptr); + struct compat_sigaltstack __user *uoss_ptr, + struct pt_regs *); long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high); long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high); long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count, @@ -255,4 +256,12 @@ long tile_compat_sys_ptrace(compat_long_t request, compat_long_t pid, /* Tilera Linux syscalls that don't have "compat" versions. */ #define compat_sys_flush_cache sys_flush_cache +/* These are the intvec_64.S trampolines. */ +long _compat_sys_execve(const char __user *path, + const compat_uptr_t __user *argv, + const compat_uptr_t __user *envp); +long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr, + struct compat_sigaltstack __user *uoss_ptr); +long _compat_sys_rt_sigreturn(void); + #endif /* _ASM_TILE_COMPAT_H */ diff --git a/arch/tile/include/asm/syscalls.h b/arch/tile/include/asm/syscalls.h index ce99ffe..3b5507c 100644 --- a/arch/tile/include/asm/syscalls.h +++ b/arch/tile/include/asm/syscalls.h @@ -32,8 +32,9 @@ extern void *compat_sys_call_table[]; /* * Note that by convention, any syscall which requires the current - * register set takes an additional "struct pt_regs *" pointer; the - * sys_xxx() function just adds the pointer and tail-calls to _sys_xxx(). + * register set takes an additional "struct pt_regs *" pointer; a + * _sys_xxx() trampoline in intvec*.S just sets up the pointer and + * jumps to sys_xxx(). */ /* kernel/sys.c */ @@ -43,66 +44,17 @@ long sys32_fadvise64(int fd, u32 offset_lo, u32 offset_hi, int sys32_fadvise64_64(int fd, u32 offset_lo, u32 offset_hi, u32 len_lo, u32 len_hi, int advice); long sys_flush_cache(void); -long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff); -#ifdef __tilegx__ -long sys_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, off_t pgoff); +#ifndef __tilegx__ /* No mmap() in the 32-bit kernel. */ +#define sys_mmap sys_mmap #endif -/* kernel/process.c */ -long sys_clone(unsigned long clone_flags, unsigned long newsp, - void __user *parent_tid, void __user *child_tid); -long _sys_clone(unsigned long clone_flags, unsigned long newsp, - void __user *parent_tid, void __user *child_tid, - struct pt_regs *regs); -long sys_fork(void); -long _sys_fork(struct pt_regs *regs); -long sys_vfork(void); -long _sys_vfork(struct pt_regs *regs); -long sys_execve(const char __user *filename, - const char __user *const __user *argv, - const char __user *const __user *envp); -long _sys_execve(const char __user *filename, - const char __user *const __user *argv, - const char __user *const __user *envp, struct pt_regs *regs); - -/* kernel/signal.c */ -long sys_sigaltstack(const stack_t __user *, stack_t __user *); -long _sys_sigaltstack(const stack_t __user *, stack_t __user *, - struct pt_regs *); -long sys_rt_sigreturn(void); -long _sys_rt_sigreturn(struct pt_regs *regs); - -/* platform-independent functions */ -long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); -long sys_rt_sigaction(int sig, const struct sigaction __user *act, - struct sigaction __user *oact, size_t sigsetsize); - #ifndef __tilegx__ /* mm/fault.c */ -int sys_cmpxchg_badaddr(unsigned long address); -int _sys_cmpxchg_badaddr(unsigned long address, struct pt_regs *); +long sys_cmpxchg_badaddr(unsigned long address, struct pt_regs *); +long _sys_cmpxchg_badaddr(unsigned long address); #endif #ifdef CONFIG_COMPAT -long compat_sys_execve(const char __user *path, - const compat_uptr_t __user *argv, - const compat_uptr_t __user *envp); -long _compat_sys_execve(const char __user *path, - const compat_uptr_t __user *argv, - const compat_uptr_t __user *envp, - struct pt_regs *regs); -long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr, - struct compat_sigaltstack __user *uoss_ptr); -long _compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr, - struct compat_sigaltstack __user *uoss_ptr, - struct pt_regs *regs); -long compat_sys_rt_sigreturn(void); -long _compat_sys_rt_sigreturn(struct pt_regs *regs); - /* These four are not defined for 64-bit, but serve as "compat" syscalls. */ long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg); long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); @@ -110,4 +62,15 @@ long sys_truncate64(const char __user *path, loff_t length); long sys_ftruncate64(unsigned int fd, loff_t length); #endif +/* These are the intvec*.S trampolines. */ +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, + const char __user *const __user *argv, + const char __user *const __user *envp); + +#include <asm-generic/syscalls.h> + #endif /* _ASM_TILE_SYSCALLS_H */ |