diff options
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/Kconfig | 2 | ||||
| -rw-r--r-- | arch/sh/include/asm/elf.h | 5 | ||||
| -rw-r--r-- | arch/sh/include/asm/ptrace.h | 3 | ||||
| -rw-r--r-- | arch/sh/kernel/ptrace_32.c | 86 |
4 files changed, 65 insertions, 31 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index f995d134ab3..acaba1bdd8a 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -23,7 +23,7 @@ config SUPERH32 def_bool !SUPERH64 select HAVE_KPROBES select HAVE_KRETPROBES - select HAVE_ARCH_TRACEHOOK if (!SH_FPU && !SH_DSP) + select HAVE_ARCH_TRACEHOOK if !SH_FPU config SUPERH64 def_bool y if CPU_SH5 diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h index 455d9e1e143..7c2363f8250 100644 --- a/arch/sh/include/asm/elf.h +++ b/arch/sh/include/asm/elf.h @@ -108,11 +108,10 @@ typedef struct user_fpu_struct elf_fpregset_t; #define elf_check_fdpic(x) ((x)->e_flags & EF_SH_FDPIC) #define elf_check_const_displacement(x) ((x)->e_flags & EF_SH_PIC) -#if defined(CONFIG_SUPERH32) && \ - (!defined(CONFIG_SH_FPU) && !defined(CONFIG_SH_DSP)) +#if defined(CONFIG_SUPERH32) && !defined(CONFIG_SH_FPU) /* * Enable dump using regset for general purpose registers, use this as - * the default once the FPU and DSP registers are moved over also. + * the default once the FPU registers are moved over also. */ #define CORE_DUMP_USE_REGSET #endif diff --git a/arch/sh/include/asm/ptrace.h b/arch/sh/include/asm/ptrace.h index bf73646e2d2..3ad18e91bca 100644 --- a/arch/sh/include/asm/ptrace.h +++ b/arch/sh/include/asm/ptrace.h @@ -123,6 +123,9 @@ extern void user_disable_single_step(struct task_struct *); #define task_pt_regs(task) \ ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ - sizeof(struct pt_dspregs) - sizeof(unsigned long)) - 1) +#define task_pt_dspregs(task) \ + ((struct pt_dspregs *) (task_stack_page(task) + THREAD_SIZE \ + - sizeof(unsigned long)) - 1) #else #define task_pt_regs(task) \ ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index 5e3ba10255c..20b103f6c33 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -145,11 +145,50 @@ static int genregs_set(struct task_struct *target, return ret; } +#ifdef CONFIG_SH_DSP +static int dspregs_get(struct task_struct *target, + const struct user_regset *regset, + unsigned int pos, unsigned int count, + void *kbuf, void __user *ubuf) +{ + const struct pt_dspregs *regs = task_pt_dspregs(target); + int ret; + + ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, + 0, sizeof(struct pt_dspregs)); + if (!ret) + ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, + sizeof(struct pt_dspregs), -1); + + return ret; +} + +static int dspregs_set(struct task_struct *target, + const struct user_regset *regset, + unsigned int pos, unsigned int count, + const void *kbuf, const void __user *ubuf) +{ + struct pt_dspregs *regs = task_pt_dspregs(target); + int ret; + + ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, + 0, sizeof(struct pt_dspregs)); + if (!ret) + ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, + sizeof(struct pt_dspregs), -1); + + return ret; +} +#endif + /* * These are our native regset flavours. */ enum sh_regset { REGSET_GENERAL, +#ifdef CONFIG_SH_DSP + REGSET_DSP, +#endif }; static const struct user_regset sh_regsets[] = { @@ -166,6 +205,16 @@ static const struct user_regset sh_regsets[] = { .get = genregs_get, .set = genregs_set, }, + +#ifdef CONFIG_SH_DSP + [REGSET_DSP] = { + .n = sizeof(struct pt_dspregs) / sizeof(long), + .size = sizeof(long), + .align = sizeof(long), + .get = dspregs_get, + .set = dspregs_set, + }, +#endif }; static const struct user_regset_view user_sh_native_view = { @@ -242,33 +291,16 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 0, sizeof(struct pt_regs), (const void __user *)data); #ifdef CONFIG_SH_DSP - case PTRACE_GETDSPREGS: { - unsigned long dp; - - ret = -EIO; - dp = ((unsigned long) child) + THREAD_SIZE - - sizeof(struct pt_dspregs); - if (*((int *) (dp - 4)) == SR_FD) { - copy_to_user((void *)addr, (void *) dp, - sizeof(struct pt_dspregs)); - ret = 0; - } - break; - } - - case PTRACE_SETDSPREGS: { - unsigned long dp; - - ret = -EIO; - dp = ((unsigned long) child) + THREAD_SIZE - - sizeof(struct pt_dspregs); - if (*((int *) (dp - 4)) == SR_FD) { - copy_from_user((void *) dp, (void *)addr, - sizeof(struct pt_dspregs)); - ret = 0; - } - break; - } + case PTRACE_GETDSPREGS: + return copy_regset_to_user(child, &user_sh_native_view, + REGSET_DSP, + 0, sizeof(struct pt_dspregs), + (void __user *)data); + case PTRACE_SETDSPREGS: + return copy_regset_from_user(child, &user_sh_native_view, + REGSET_DSP, + 0, sizeof(struct pt_dspregs), + (const void __user *)data); #endif #ifdef CONFIG_BINFMT_ELF_FDPIC case PTRACE_GETFDPIC: { |