diff options
Diffstat (limited to 'arch/sh')
47 files changed, 257 insertions, 389 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index babc2b826c5..8451317eed5 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -40,6 +40,8 @@ config SUPERH select GENERIC_STRNLEN_USER select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER select MODULES_USE_ELF_RELA + select GENERIC_KERNEL_THREAD + select GENERIC_KERNEL_EXECVE help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild index 86eadceff09..29f83beeef7 100644 --- a/arch/sh/include/asm/Kbuild +++ b/arch/sh/include/asm/Kbuild @@ -1,4 +1,3 @@ -include include/asm-generic/Kbuild.asm generic-y += bitsperlong.h generic-y += cputime.h @@ -34,13 +33,3 @@ generic-y += termbits.h generic-y += termios.h generic-y += ucontext.h generic-y += xor.h - -header-y += cachectl.h -header-y += cpu-features.h -header-y += hw_breakpoint.h -header-y += posix_types_32.h -header-y += posix_types_64.h -header-y += ptrace_32.h -header-y += ptrace_64.h -header-y += unistd_32.h -header-y += unistd_64.h diff --git a/arch/sh/include/asm/hw_breakpoint.h b/arch/sh/include/asm/hw_breakpoint.h index 89890f61a7b..ec9ad593c3d 100644 --- a/arch/sh/include/asm/hw_breakpoint.h +++ b/arch/sh/include/asm/hw_breakpoint.h @@ -1,7 +1,8 @@ #ifndef __ASM_SH_HW_BREAKPOINT_H #define __ASM_SH_HW_BREAKPOINT_H -#ifdef __KERNEL__ +#include <uapi/asm/hw_breakpoint.h> + #define __ARCH_HW_BREAKPOINT_H #include <linux/kdebug.h> @@ -66,5 +67,4 @@ extern int register_sh_ubc(struct sh_ubc *); extern struct pmu perf_ops_bp; -#endif /* __KERNEL__ */ #endif /* __ASM_SH_HW_BREAKPOINT_H */ diff --git a/arch/sh/include/asm/posix_types.h b/arch/sh/include/asm/posix_types.h index f08449bcbde..1aa781079b1 100644 --- a/arch/sh/include/asm/posix_types.h +++ b/arch/sh/include/asm/posix_types.h @@ -1,13 +1,5 @@ -#ifdef __KERNEL__ # ifdef CONFIG_SUPERH32 # include <asm/posix_types_32.h> # else # include <asm/posix_types_64.h> # endif -#else -# ifdef __SH5__ -# include <asm/posix_types_64.h> -# else -# include <asm/posix_types_32.h> -# endif -#endif /* __KERNEL__ */ diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h index b6311fd2d06..b1320d55ca3 100644 --- a/arch/sh/include/asm/processor_32.h +++ b/arch/sh/include/asm/processor_32.h @@ -126,11 +126,6 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned lo /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); -/* - * create a kernel thread without removing it from tasklists - */ -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - /* Copy and release all segment info associated with a VM */ #define copy_segments(p, mm) do { } while(0) #define release_segments(mm) do { } while(0) diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h index cd6029fb2c0..1ee8946f095 100644 --- a/arch/sh/include/asm/processor_64.h +++ b/arch/sh/include/asm/processor_64.h @@ -159,11 +159,6 @@ struct mm_struct; /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); -/* - * create a kernel thread without removing it from tasklists - */ -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - /* Copy and release all segment info associated with a VM */ #define copy_segments(p, mm) do { } while (0) diff --git a/arch/sh/include/asm/ptrace.h b/arch/sh/include/asm/ptrace.h index a4a38dff997..2506c7db76b 100644 --- a/arch/sh/include/asm/ptrace.h +++ b/arch/sh/include/asm/ptrace.h @@ -1,42 +1,16 @@ -#ifndef __ASM_SH_PTRACE_H -#define __ASM_SH_PTRACE_H - /* * Copyright (C) 1999, 2000 Niibe Yutaka */ +#ifndef __ASM_SH_PTRACE_H +#define __ASM_SH_PTRACE_H -#define PTRACE_GETREGS 12 /* General registers */ -#define PTRACE_SETREGS 13 - -#define PTRACE_GETFPREGS 14 /* FPU registers */ -#define PTRACE_SETFPREGS 15 - -#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */ - -#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */ -#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */ - -#define PTRACE_GETDSPREGS 55 /* DSP registers */ -#define PTRACE_SETDSPREGS 56 - -#define PT_TEXT_END_ADDR 240 -#define PT_TEXT_ADDR 244 /* &(struct user)->start_code */ -#define PT_DATA_ADDR 248 /* &(struct user)->start_data */ -#define PT_TEXT_LEN 252 - -#if defined(__SH5__) || defined(CONFIG_CPU_SH5) -#include <asm/ptrace_64.h> -#else -#include <asm/ptrace_32.h> -#endif - -#ifdef __KERNEL__ #include <linux/stringify.h> #include <linux/stddef.h> #include <linux/thread_info.h> #include <asm/addrspace.h> #include <asm/page.h> +#include <uapi/asm/ptrace.h> #define user_mode(regs) (((regs)->sr & 0x40000000)==0) #define kernel_stack_pointer(_regs) ((unsigned long)(_regs)->regs[15]) @@ -140,6 +114,4 @@ static inline unsigned long profile_pc(struct pt_regs *regs) #define profile_pc profile_pc #include <asm-generic/ptrace.h> -#endif /* __KERNEL__ */ - #endif /* __ASM_SH_PTRACE_H */ diff --git a/arch/sh/include/asm/ptrace_32.h b/arch/sh/include/asm/ptrace_32.h index 2d3e906aa72..1dd4480c536 100644 --- a/arch/sh/include/asm/ptrace_32.h +++ b/arch/sh/include/asm/ptrace_32.h @@ -1,79 +1,8 @@ #ifndef __ASM_SH_PTRACE_32_H #define __ASM_SH_PTRACE_32_H -/* - * GCC defines register number like this: - * ----------------------------- - * 0 - 15 are integer registers - * 17 - 22 are control/special registers - * 24 - 39 fp registers - * 40 - 47 xd registers - * 48 - fpscr register - * ----------------------------- - * - * We follows above, except: - * 16 --- program counter (PC) - * 22 --- syscall # - * 23 --- floating point communication register - */ -#define REG_REG0 0 -#define REG_REG15 15 +#include <uapi/asm/ptrace_32.h> -#define REG_PC 16 - -#define REG_PR 17 -#define REG_SR 18 -#define REG_GBR 19 -#define REG_MACH 20 -#define REG_MACL 21 - -#define REG_SYSCALL 22 - -#define REG_FPREG0 23 -#define REG_FPREG15 38 -#define REG_XFREG0 39 -#define REG_XFREG15 54 - -#define REG_FPSCR 55 -#define REG_FPUL 56 - -/* - * This struct defines the way the registers are stored on the - * kernel stack during a system call or other kernel entry. - */ -struct pt_regs { - unsigned long regs[16]; - unsigned long pc; - unsigned long pr; - unsigned long sr; - unsigned long gbr; - unsigned long mach; - unsigned long macl; - long tra; -}; - -/* - * This struct defines the way the DSP registers are stored on the - * kernel stack during a system call or other kernel entry. - */ -struct pt_dspregs { - unsigned long a1; - unsigned long a0g; - unsigned long a1g; - unsigned long m0; - unsigned long m1; - unsigned long a0; - unsigned long x0; - unsigned long x1; - unsigned long y0; - unsigned long y1; - unsigned long dsr; - unsigned long rs; - unsigned long re; - unsigned long mod; -}; - -#ifdef __KERNEL__ #define MAX_REG_OFFSET offsetof(struct pt_regs, tra) static inline long regs_return_value(struct pt_regs *regs) @@ -81,6 +10,4 @@ static inline long regs_return_value(struct pt_regs *regs) return regs->regs[0]; } -#endif /* __KERNEL__ */ - #endif /* __ASM_SH_PTRACE_32_H */ diff --git a/arch/sh/include/asm/ptrace_64.h b/arch/sh/include/asm/ptrace_64.h index eb3fcceaf64..97f4b5660f2 100644 --- a/arch/sh/include/asm/ptrace_64.h +++ b/arch/sh/include/asm/ptrace_64.h @@ -1,16 +1,8 @@ #ifndef __ASM_SH_PTRACE_64_H #define __ASM_SH_PTRACE_64_H -struct pt_regs { - unsigned long long pc; - unsigned long long sr; - long long syscall_nr; - unsigned long long regs[63]; - unsigned long long tregs[8]; - unsigned long long pad[2]; -}; +#include <uapi/asm/ptrace_64.h> -#ifdef __KERNEL__ #define MAX_REG_OFFSET offsetof(struct pt_regs, tregs[7]) static inline long regs_return_value(struct pt_regs *regs) @@ -18,6 +10,4 @@ static inline long regs_return_value(struct pt_regs *regs) return regs->regs[3]; } -#endif /* __KERNEL__ */ - #endif /* __ASM_SH_PTRACE_64_H */ diff --git a/arch/sh/include/asm/setup.h b/arch/sh/include/asm/setup.h index 465a22df8fd..99238108e7a 100644 --- a/arch/sh/include/asm/setup.h +++ b/arch/sh/include/asm/setup.h @@ -1,9 +1,8 @@ #ifndef _SH_SETUP_H #define _SH_SETUP_H -#include <asm-generic/setup.h> +#include <uapi/asm/setup.h> -#ifdef __KERNEL__ /* * This is set up by the setup-routine at boot-time */ @@ -22,6 +21,4 @@ void sh_mv_setup(void); void check_for_initrd(void); void per_cpu_trap_init(void); -#endif /* __KERNEL__ */ - #endif /* _SH_SETUP_H */ diff --git a/arch/sh/include/asm/syscalls_32.h b/arch/sh/include/asm/syscalls_32.h index 6c1fa559753..d2f89f1741f 100644 --- a/arch/sh/include/asm/syscalls_32.h +++ b/arch/sh/include/asm/syscalls_32.h @@ -19,10 +19,6 @@ asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, asmlinkage int sys_vfork(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs __regs); -asmlinkage int sys_execve(const char __user *ufilename, - const char __user *const __user *uargv, - const char __user *const __user *uenvp, - unsigned long r7, struct pt_regs __regs); asmlinkage int sys_sigsuspend(old_sigset_t mask); asmlinkage int sys_sigaction(int sig, const struct old_sigaction __user *act, struct old_sigaction __user *oact); diff --git a/arch/sh/include/asm/syscalls_64.h b/arch/sh/include/asm/syscalls_64.h index ee519f41d95..3fedd9f1fab 100644 --- a/arch/sh/include/asm/syscalls_64.h +++ b/arch/sh/include/asm/syscalls_64.h @@ -21,10 +21,6 @@ asmlinkage int sys_vfork(unsigned long r2, unsigned long r3, unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs *pregs); -asmlinkage int sys_execve(const char *ufilename, char **uargv, - char **uenvp, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs *pregs); /* Misc syscall related bits */ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs); diff --git a/arch/sh/include/asm/types.h b/arch/sh/include/asm/types.h index f8421f7ad63..6a31053fa5e 100644 --- a/arch/sh/include/asm/types.h +++ b/arch/sh/include/asm/types.h @@ -1,12 +1,11 @@ #ifndef __ASM_SH_TYPES_H #define __ASM_SH_TYPES_H -#include <asm-generic/types.h> +#include <uapi/asm/types.h> /* * These aren't exported outside the kernel to avoid name space clashes */ -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ #ifdef CONFIG_SUPERH32 @@ -18,6 +17,4 @@ typedef u64 reg_size_t; #endif #endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ - #endif /* __ASM_SH_TYPES_H */ diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h index 307201a854f..f1f4775766a 100644 --- a/arch/sh/include/asm/unistd.h +++ b/arch/sh/include/asm/unistd.h @@ -1,4 +1,3 @@ -#ifdef __KERNEL__ # ifdef CONFIG_SUPERH32 # include <asm/unistd_32.h> # else @@ -29,6 +28,7 @@ # define __ARCH_WANT_SYS_SIGPENDING # define __ARCH_WANT_SYS_SIGPROCMASK # define __ARCH_WANT_SYS_RT_SIGACTION +# define __ARCH_WANT_SYS_EXECVE /* * "Conditional" syscalls @@ -38,10 +38,4 @@ */ # define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall") -#else -# ifdef __SH5__ -# include <asm/unistd_64.h> -# else -# include <asm/unistd_32.h> -# endif -#endif +#include <uapi/asm/unistd.h> diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild index baebb3da1d4..60613ae7851 100644 --- a/arch/sh/include/uapi/asm/Kbuild +++ b/arch/sh/include/uapi/asm/Kbuild @@ -1,3 +1,25 @@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +header-y += auxvec.h +header-y += byteorder.h +header-y += cachectl.h +header-y += cpu-features.h +header-y += hw_breakpoint.h +header-y += ioctls.h +header-y += posix_types.h +header-y += posix_types_32.h +header-y += posix_types_64.h +header-y += ptrace.h +header-y += ptrace_32.h +header-y += ptrace_64.h +header-y += setup.h +header-y += sigcontext.h +header-y += signal.h +header-y += sockios.h +header-y += stat.h +header-y += swab.h +header-y += types.h +header-y += unistd.h +header-y += unistd_32.h +header-y += unistd_64.h diff --git a/arch/sh/include/asm/auxvec.h b/arch/sh/include/uapi/asm/auxvec.h index 8bcc51af936..8bcc51af936 100644 --- a/arch/sh/include/asm/auxvec.h +++ b/arch/sh/include/uapi/asm/auxvec.h diff --git a/arch/sh/include/asm/byteorder.h b/arch/sh/include/uapi/asm/byteorder.h index db2f5d7cb17..db2f5d7cb17 100644 --- a/arch/sh/include/asm/byteorder.h +++ b/arch/sh/include/uapi/asm/byteorder.h diff --git a/arch/sh/include/asm/cachectl.h b/arch/sh/include/uapi/asm/cachectl.h index 6ffb4b7a212..6ffb4b7a212 100644 --- a/arch/sh/include/asm/cachectl.h +++ b/arch/sh/include/uapi/asm/cachectl.h diff --git a/arch/sh/include/asm/cpu-features.h b/arch/sh/include/uapi/asm/cpu-features.h index 694abe490ed..694abe490ed 100644 --- a/arch/sh/include/asm/cpu-features.h +++ b/arch/sh/include/uapi/asm/cpu-features.h diff --git a/arch/sh/include/uapi/asm/hw_breakpoint.h b/arch/sh/include/uapi/asm/hw_breakpoint.h new file mode 100644 index 00000000000..ae5704fa77a --- /dev/null +++ b/arch/sh/include/uapi/asm/hw_breakpoint.h @@ -0,0 +1,4 @@ +/* + * There isn't anything here anymore, but the file must not be empty or patch + * will delete it. + */ diff --git a/arch/sh/include/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h index a6769f352bf..a6769f352bf 100644 --- a/arch/sh/include/asm/ioctls.h +++ b/arch/sh/include/uapi/asm/ioctls.h diff --git a/arch/sh/include/uapi/asm/posix_types.h b/arch/sh/include/uapi/asm/posix_types.h new file mode 100644 index 00000000000..dc55e5adfe1 --- /dev/null +++ b/arch/sh/include/uapi/asm/posix_types.h @@ -0,0 +1,7 @@ +#ifndef __KERNEL__ +# ifdef __SH5__ +# include <asm/posix_types_64.h> +# else +# include <asm/posix_types_32.h> +# endif +#endif /* __KERNEL__ */ diff --git a/arch/sh/include/asm/posix_types_32.h b/arch/sh/include/uapi/asm/posix_types_32.h index ba0bdc423b0..ba0bdc423b0 100644 --- a/arch/sh/include/asm/posix_types_32.h +++ b/arch/sh/include/uapi/asm/posix_types_32.h diff --git a/arch/sh/include/asm/posix_types_64.h b/arch/sh/include/uapi/asm/posix_types_64.h index 244f7e950e1..244f7e950e1 100644 --- a/arch/sh/include/asm/posix_types_64.h +++ b/arch/sh/include/uapi/asm/posix_types_64.h diff --git a/arch/sh/include/uapi/asm/ptrace.h b/arch/sh/include/uapi/asm/ptrace.h new file mode 100644 index 00000000000..8b8c5aca9c2 --- /dev/null +++ b/arch/sh/include/uapi/asm/ptrace.h @@ -0,0 +1,34 @@ +/* + * Copyright (C) 1999, 2000 Niibe Yutaka + */ +#ifndef _UAPI__ASM_SH_PTRACE_H +#define _UAPI__ASM_SH_PTRACE_H + + +#define PTRACE_GETREGS 12 /* General registers */ +#define PTRACE_SETREGS 13 + +#define PTRACE_GETFPREGS 14 /* FPU registers */ +#define PTRACE_SETFPREGS 15 + +#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */ + +#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */ +#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */ + +#define PTRACE_GETDSPREGS 55 /* DSP registers */ +#define PTRACE_SETDSPREGS 56 + +#define PT_TEXT_END_ADDR 240 +#define PT_TEXT_ADDR 244 /* &(struct user)->start_code */ +#define PT_DATA_ADDR 248 /* &(struct user)->start_data */ +#define PT_TEXT_LEN 252 + +#if defined(__SH5__) || defined(CONFIG_CPU_SH5) +#include <asm/ptrace_64.h> +#else +#include <asm/ptrace_32.h> +#endif + + +#endif /* _UAPI__ASM_SH_PTRACE_H */ diff --git a/arch/sh/include/uapi/asm/ptrace_32.h b/arch/sh/include/uapi/asm/ptrace_32.h new file mode 100644 index 00000000000..926e0cefc2b --- /dev/null +++ b/arch/sh/include/uapi/asm/ptrace_32.h @@ -0,0 +1,77 @@ +#ifndef _UAPI__ASM_SH_PTRACE_32_H +#define _UAPI__ASM_SH_PTRACE_32_H + +/* + * GCC defines register number like this: + * ----------------------------- + * 0 - 15 are integer registers + * 17 - 22 are control/special registers + * 24 - 39 fp registers + * 40 - 47 xd registers + * 48 - fpscr register + * ----------------------------- + * + * We follows above, except: + * 16 --- program counter (PC) + * 22 --- syscall # + * 23 --- floating point communication register + */ +#define REG_REG0 0 +#define REG_REG15 15 + +#define REG_PC 16 + +#define REG_PR 17 +#define REG_SR 18 +#define REG_GBR 19 +#define REG_MACH 20 +#define REG_MACL 21 + +#define REG_SYSCALL 22 + +#define REG_FPREG0 23 +#define REG_FPREG15 38 +#define REG_XFREG0 39 +#define REG_XFREG15 54 + +#define REG_FPSCR 55 +#define REG_FPUL 56 + +/* + * This struct defines the way the registers are stored on the + * kernel stack during a system call or other kernel entry. + */ +struct pt_regs { + unsigned long regs[16]; + unsigned long pc; + unsigned long pr; + unsigned long sr; + unsigned long gbr; + unsigned long mach; + unsigned long macl; + long tra; +}; + +/* + * This struct defines the way the DSP registers are stored on the + * kernel stack during a system call or other kernel entry. + */ +struct pt_dspregs { + unsigned long a1; + unsigned long a0g; + unsigned long a1g; + unsigned long m0; + unsigned long m1; + unsigned long a0; + unsigned long x0; + unsigned long x1; + unsigned long y0; + unsigned long y1; + unsigned long dsr; + unsigned long rs; + unsigned long re; + unsigned long mod; +}; + + +#endif /* _UAPI__ASM_SH_PTRACE_32_H */ diff --git a/arch/sh/include/uapi/asm/ptrace_64.h b/arch/sh/include/uapi/asm/ptrace_64.h new file mode 100644 index 00000000000..0e52ee83e94 --- /dev/null +++ b/arch/sh/include/uapi/asm/ptrace_64.h @@ -0,0 +1,14 @@ +#ifndef _UAPI__ASM_SH_PTRACE_64_H +#define _UAPI__ASM_SH_PTRACE_64_H + +struct pt_regs { + unsigned long long pc; + unsigned long long sr; + long long syscall_nr; + unsigned long long regs[63]; + unsigned long long tregs[8]; + unsigned long long pad[2]; +}; + + +#endif /* _UAPI__ASM_SH_PTRACE_64_H */ diff --git a/arch/sh/include/uapi/asm/setup.h b/arch/sh/include/uapi/asm/setup.h new file mode 100644 index 00000000000..552df83f1a4 --- /dev/null +++ b/arch/sh/include/uapi/asm/setup.h @@ -0,0 +1 @@ +#include <asm-generic/setup.h> diff --git a/arch/sh/include/asm/sigcontext.h b/arch/sh/include/uapi/asm/sigcontext.h index 8ce1435bc0b..8ce1435bc0b 100644 --- a/arch/sh/include/asm/sigcontext.h +++ b/arch/sh/include/uapi/asm/sigcontext.h diff --git a/arch/sh/include/asm/signal.h b/arch/sh/include/uapi/asm/signal.h index 9ac530a90bc..9ac530a90bc 100644 --- a/arch/sh/include/asm/signal.h +++ b/arch/sh/include/uapi/asm/signal.h diff --git a/arch/sh/include/asm/sockios.h b/arch/sh/include/uapi/asm/sockios.h index cf8b96b1f9a..cf8b96b1f9a 100644 --- a/arch/sh/include/asm/sockios.h +++ b/arch/sh/include/uapi/asm/sockios.h diff --git a/arch/sh/include/asm/stat.h b/arch/sh/include/uapi/asm/stat.h index e1810cc6e3d..e1810cc6e3d 100644 --- a/arch/sh/include/asm/stat.h +++ b/arch/sh/include/uapi/asm/stat.h diff --git a/arch/sh/include/asm/swab.h b/arch/sh/include/uapi/asm/swab.h index 1cd09767a7a..1cd09767a7a 100644 --- a/arch/sh/include/asm/swab.h +++ b/arch/sh/include/uapi/asm/swab.h diff --git a/arch/sh/include/uapi/asm/types.h b/arch/sh/include/uapi/asm/types.h new file mode 100644 index 00000000000..b9e79bc580d --- /dev/null +++ b/arch/sh/include/uapi/asm/types.h @@ -0,0 +1 @@ +#include <asm-generic/types.h> diff --git a/arch/sh/include/uapi/asm/unistd.h b/arch/sh/include/uapi/asm/unistd.h new file mode 100644 index 00000000000..eeef88dd53c --- /dev/null +++ b/arch/sh/include/uapi/asm/unistd.h @@ -0,0 +1,7 @@ +#ifndef __KERNEL__ +# ifdef __SH5__ +# include <asm/unistd_64.h> +# else +# include <asm/unistd_32.h> +# endif +#endif diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/uapi/asm/unistd_32.h index 72fd1e06100..9e465f246dc 100644 --- a/arch/sh/include/asm/unistd_32.h +++ b/arch/sh/include/uapi/asm/unistd_32.h @@ -378,7 +378,8 @@ #define __NR_setns 364 #define __NR_process_vm_readv 365 #define __NR_process_vm_writev 366 +#define __NR_kcmp 367 -#define NR_syscalls 367 +#define NR_syscalls 368 #endif /* __ASM_SH_UNISTD_32_H */ diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/uapi/asm/unistd_64.h index a28edc32969..8e3a2edd284 100644 --- a/arch/sh/include/asm/unistd_64.h +++ b/arch/sh/include/uapi/asm/unistd_64.h @@ -398,7 +398,8 @@ #define __NR_setns 375 #define __NR_process_vm_readv 376 #define __NR_process_vm_writev 377 +#define __NR_kcmp 378 -#define NR_syscalls 378 +#define NR_syscalls 379 #endif /* __ASM_SH_UNISTD_64_H */ diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index 88571ff8eee..f259b37874e 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -16,7 +16,7 @@ obj-y := debugtraps.o dma-nommu.o dumpstack.o \ machvec.o nmi_debug.o process.o \ process_$(BITS).o ptrace.o ptrace_$(BITS).o \ reboot.o return_address.o \ - setup.o signal_$(BITS).o sys_sh.o sys_sh$(BITS).o \ + setup.o signal_$(BITS).o sys_sh.o \ syscalls_$(BITS).o time.o topology.o traps.o \ traps_$(BITS).o unwinder.o @@ -25,6 +25,7 @@ obj-y += iomap.o obj-$(CONFIG_HAS_IOPORT) += ioport.o endif +obj-$(CONFIG_SUPERH32) += sys_sh32.o obj-y += cpu/ obj-$(CONFIG_VSYSCALL) += vsyscall/ obj-$(CONFIG_SMP) += smp.o diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S index 7e605b95592..0c8d0377d40 100644 --- a/arch/sh/kernel/cpu/sh5/entry.S +++ b/arch/sh/kernel/cpu/sh5/entry.S @@ -1228,6 +1228,25 @@ ret_from_fork: pta ret_from_syscall, tr0 blink tr0, ZERO +.global ret_from_kernel_thread +ret_from_kernel_thread: + + movi schedule_tail,r5 + ori r5, 1, r5 + ptabs r5, tr0 + blink tr0, LINK + + ld.q SP, FRAME_R(2), r2 + ld.q SP, FRAME_R(3), r3 + ptabs r3, tr0 + blink tr0, LINK + + ld.q SP, FRAME_S(FSPC), r2 + addi r2, 4, r2 /* Move PC, being pre-execution event */ + st.q SP, FRAME_S(FSPC), r2 + pta ret_from_syscall, tr0 + blink tr0, ZERO + syscall_allowed: /* Use LINK to deflect the exit point, default is syscall_ret */ pta syscall_ret, tr0 diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S index b96489d8b27..9b6e4beeb29 100644 --- a/arch/sh/kernel/entry-common.S +++ b/arch/sh/kernel/entry-common.S @@ -297,6 +297,19 @@ ret_from_fork: mov r0, r4 bra syscall_exit nop + + .align 2 + .globl ret_from_kernel_thread +ret_from_kernel_thread: + mov.l 1f, r8 + jsr @r8 + mov r0, r4 + mov.l @(OFF_R5,r15), r5 ! fn + jsr @r5 + mov.l @(OFF_R4,r15), r4 ! arg + bra syscall_exit + nop + .align 2 1: .long schedule_tail diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index ba7345f37bc..fce8029de92 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -68,38 +68,6 @@ void show_regs(struct pt_regs * regs) show_code(regs); } -/* - * Create a kernel thread - */ -__noreturn void kernel_thread_helper(void *arg, int (*fn)(void *)) -{ - do_exit(fn(arg)); -} - -/* Don't use this in BL=1(cli). Or else, CPU resets! */ -int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - struct pt_regs regs; - int pid; - - memset(®s, 0, sizeof(regs)); - regs.regs[4] = (unsigned long)arg; - regs.regs[5] = (unsigned long)fn; - - regs.pc = (unsigned long)kernel_thread_helper; - regs.sr = SR_MD; -#if defined(CONFIG_SH_FPU) - regs.sr |= SR_FD; -#endif - - /* Ok, create the new process.. */ - pid = do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, - ®s, 0, NULL, NULL); - - return pid; -} -EXPORT_SYMBOL(kernel_thread); - void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned long new_sp) { @@ -157,9 +125,10 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) EXPORT_SYMBOL(dump_fpu); asmlinkage void ret_from_fork(void); +asmlinkage void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long unused, + unsigned long arg, struct task_struct *p, struct pt_regs *regs) { struct thread_info *ti = task_thread_info(p); @@ -177,29 +146,34 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, } #endif - childregs = task_pt_regs(p); - *childregs = *regs; + memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps)); - if (user_mode(regs)) { - childregs->regs[15] = usp; - ti->addr_limit = USER_DS; - } else { - childregs->regs[15] = (unsigned long)childregs; + childregs = task_pt_regs(p); + p->thread.sp = (unsigned long) childregs; + if (unlikely(p->flags & PF_KTHREAD)) { + memset(childregs, 0, sizeof(struct pt_regs)); + p->thread.pc = (unsigned long) ret_from_kernel_thread; + childregs->regs[4] = arg; + childregs->regs[5] = usp; + childregs->sr = SR_MD; +#if defined(CONFIG_SH_FPU) + childregs->sr |= SR_FD; +#endif ti->addr_limit = KERNEL_DS; ti->status &= ~TS_USEDFPU; p->fpu_counter = 0; + return 0; } + *childregs = *regs; + + childregs->regs[15] = usp; + ti->addr_limit = USER_DS; if (clone_flags & CLONE_SETTLS) childregs->gbr = childregs->regs[0]; childregs->regs[0] = 0; /* Set return value for child */ - - p->thread.sp = (unsigned long) childregs; p->thread.pc = (unsigned long) ret_from_fork; - - memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps)); - return 0; } @@ -288,29 +262,6 @@ asmlinkage int sys_vfork(unsigned long r4, unsigned long r5, 0, NULL, NULL); } -/* - * sys_execve() executes a new program. - */ -asmlinkage int sys_execve(const char __user *ufilename, - const char __user *const __user *uargv, - const char __user *const __user *uenvp, - unsigned long r7, struct pt_regs __regs) -{ - struct pt_regs *regs = RELOC_HIDE(&__regs, 0); - int error; - struct filename *filename; - - filename = getname(ufilename); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - - error = do_execve(filename->name, uargv, uenvp, regs); - putname(filename); -out: - return error; -} - unsigned long get_wchan(struct task_struct *p) { unsigned long pc; diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c index 98a709f0c3c..3a0f3fd3bb5 100644 --- a/arch/sh/kernel/process_64.c +++ b/arch/sh/kernel/process_64.c @@ -285,39 +285,6 @@ void show_regs(struct pt_regs *regs) } /* - * Create a kernel thread - */ -__noreturn void kernel_thread_helper(void *arg, int (*fn)(void *)) -{ - do_exit(fn(arg)); -} - -/* - * This is the mechanism for creating a new kernel thread. - * - * NOTE! Only a kernel-only process(ie the swapper or direct descendants - * who haven't done an "execve()") should use this: it will work within - * a system call from a "real" process, but the process memory space will - * not be freed until both the parent and the child have exited. - */ -int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - struct pt_regs regs; - - memset(®s, 0, sizeof(regs)); - regs.regs[2] = (unsigned long)arg; - regs.regs[3] = (unsigned long)fn; - - regs.pc = (unsigned long)kernel_thread_helper; - regs.sr = (1 << 30); - - /* Ok, create the new process.. */ - return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, - ®s, 0, NULL, NULL); -} -EXPORT_SYMBOL(kernel_thread); - -/* * Free current thread data structures etc.. */ void exit_thread(void) @@ -401,15 +368,17 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) EXPORT_SYMBOL(dump_fpu); asmlinkage void ret_from_fork(void); +asmlinkage void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long unused, + unsigned long arg, struct task_struct *p, struct pt_regs *regs) { struct pt_regs *childregs; #ifdef CONFIG_SH_FPU - if(last_task_used_math == current) { + /* can't happen for a kernel thread */ + if (last_task_used_math == current) { enable_fpu(); save_fpu(current); disable_fpu(); @@ -419,7 +388,17 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, #endif /* Copy from sh version */ childregs = (struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1; + p->thread.sp = (unsigned long) childregs; + if (unlikely(p->flags & PF_KTHREAD)) { + memset(childregs, 0, sizeof(struct pt_regs)); + childregs->regs[2] = (unsigned long)arg; + childregs->regs[3] = (unsigned long)fn; + childregs->sr = (1 << 30); /* not user_mode */ + childregs->sr |= SR_FD; /* Invalidate FPU flag */ + p->thread.pc = (unsigned long) ret_from_kernel_thread; + return 0; + } *childregs = *regs; /* @@ -428,19 +407,12 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, * 32-bit wide and context switch must take care * of NEFF sign extension. */ - if (user_mode(regs)) { - childregs->regs[15] = neff_sign_extend(usp); - p->thread.uregs = childregs; - } else { - childregs->regs[15] = - neff_sign_extend((unsigned long)task_stack_page(p) + - THREAD_SIZE); - } + childregs->regs[15] = neff_sign_extend(usp); + p->thread.uregs = childregs; childregs->regs[9] = 0; /* Set return value for child */ childregs->sr |= SR_FD; /* Invalidate FPU flag */ - p->thread.sp = (unsigned long) childregs; p->thread.pc = (unsigned long) ret_from_fork; return 0; @@ -482,31 +454,6 @@ asmlinkage int sys_vfork(unsigned long r2, unsigned long r3, return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, pregs->regs[15], pregs, 0, 0, 0); } -/* - * sys_execve() executes a new program. - */ -asmlinkage int sys_execve(const char *ufilename, char **uargv, - char **uenvp, unsigned long r5, - unsigned long r6, unsigned long r7, - struct pt_regs *pregs) -{ - int error; - struct filename *filename; - - filename = getname((char __user *)ufilename); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - - error = do_execve(filename->name, - (const char __user *const __user *)uargv, - (const char __user *const __user *)uenvp, - pregs); - putname(filename); -out: - return error; -} - #ifdef CONFIG_FRAME_POINTER static int in_sh64_switch_to(unsigned long pc) { diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 23853814bd1..d867cd95a62 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -347,7 +347,6 @@ asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3, { struct rt_sigframe __user *frame = (struct rt_sigframe __user *) (long) REF_REG_SP; sigset_t set; - stack_t __user st; long long ret; /* Always make any pending restarted system calls return -EINTR */ @@ -365,11 +364,10 @@ asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3, goto badframe; regs->pc -= 4; - if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st))) - goto badframe; /* It is more difficult to avoid calling this function than to call it and ignore errors. */ - do_sigaltstack(&st, NULL, REF_REG_SP); + if (do_sigaltstack(&frame->uc.uc_stack, NULL, REF_REG_SP) == -EFAULT) + goto badframe; return (int) ret; diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c index f56b6fe5c5d..497bab3a040 100644 --- a/arch/sh/kernel/sys_sh32.c +++ b/arch/sh/kernel/sys_sh32.c @@ -60,27 +60,3 @@ asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1, (u64)len0 << 32 | len1, advice); #endif } - -#if defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH2A) -#define SYSCALL_ARG3 "trapa #0x23" -#else -#define SYSCALL_ARG3 "trapa #0x13" -#endif - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - register long __sc0 __asm__ ("r3") = __NR_execve; - register long __sc4 __asm__ ("r4") = (long) filename; - register long __sc5 __asm__ ("r5") = (long) argv; - register long __sc6 __asm__ ("r6") = (long) envp; - __asm__ __volatile__ (SYSCALL_ARG3 : "=z" (__sc0) - : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6) - : "memory"); - return __sc0; -} diff --git a/arch/sh/kernel/sys_sh64.c b/arch/sh/kernel/sys_sh64.c deleted file mode 100644 index c5a38c4bf41..00000000000 --- a/arch/sh/kernel/sys_sh64.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * arch/sh/kernel/sys_sh64.c - * - * Copyright (C) 2000, 2001 Paolo Alberelli - * - * This file contains various random system calls that - * have a non-standard calling sequence on the Linux/SH5 - * platform. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include <linux/errno.h> -#include <linux/rwsem.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/smp.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/stat.h> -#include <linux/mman.h> -#include <linux/file.h> -#include <linux/syscalls.h> -#include <linux/ipc.h> -#include <asm/uaccess.h> -#include <asm/ptrace.h> -#include <asm/unistd.h> - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve); - register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename; - register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv; - register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp; - __asm__ __volatile__ ("trapa %1 !\t\t\t execve(%2,%3,%4)" - : "=r" (__sc0) - : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); - __asm__ __volatile__ ("!dummy %0 %1 %2 %3" - : : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory"); - return __sc0; -} diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S index 4b68f0f7976..fe97ae5e56f 100644 --- a/arch/sh/kernel/syscalls_32.S +++ b/arch/sh/kernel/syscalls_32.S @@ -384,3 +384,4 @@ ENTRY(sys_call_table) .long sys_setns .long sys_process_vm_readv /* 365 */ .long sys_process_vm_writev + .long sys_kcmp diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S index 0956345b36e..5c7b1c67bdc 100644 --- a/arch/sh/kernel/syscalls_64.S +++ b/arch/sh/kernel/syscalls_64.S @@ -404,3 +404,4 @@ sys_call_table: .long sys_setns /* 375 */ .long sys_process_vm_readv .long sys_process_vm_writev + .long sys_kcmp |