From f3e909c2750eb20536bacacc867dc9047b70546a Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Tue, 1 Jul 2008 14:01:39 +1000 Subject: powerpc: Update for VSX core file and ptrace This correctly hooks the VSX dump into Roland McGrath core file infrastructure. It adds the VSX dump information as an additional elf note in the core file (after talking more to the tool chain/gdb guys). This also ensures the formats are consistent between signals, ptrace and core files. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/process.c | 19 +------------------ arch/powerpc/kernel/ptrace.c | 21 +++++++++++++-------- 2 files changed, 14 insertions(+), 26 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index d52ded366f1..1924b57bd24 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -162,7 +162,7 @@ void flush_altivec_to_thread(struct task_struct *tsk) } } -int dump_task_altivec(struct task_struct *tsk, elf_vrreg_t *vrregs) +int dump_task_altivec(struct task_struct *tsk, elf_vrregset_t *vrregs) { /* ELF_NVRREG includes the VSCR and VRSAVE which we need to save * separately, see below */ @@ -249,23 +249,6 @@ int dump_task_vsx(struct task_struct *tsk, elf_vrreg_t *vrregs) } #endif /* CONFIG_VSX */ -int dump_task_vector(struct task_struct *tsk, elf_vrregset_t *vrregs) -{ - int rc = 0; - elf_vrreg_t *regs = (elf_vrreg_t *)vrregs; -#ifdef CONFIG_ALTIVEC - rc = dump_task_altivec(tsk, regs); - if (rc) - return rc; - regs += ELF_NVRREG; -#endif - -#ifdef CONFIG_VSX - rc = dump_task_vsx(tsk, regs); -#endif - return rc; -} - #ifdef CONFIG_SPE void enable_kernel_spe(void) diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 4e203a89e18..8feb93e7890 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -368,13 +368,15 @@ static int vsr_get(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - int ret; + double buf[32]; + int ret, i; flush_vsx_to_thread(target); + for (i = 0; i < 32 ; i++) + buf[i] = current->thread.fpr[i][TS_VSRLOWOFFSET]; ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - target->thread.fpr, 0, - 32 * sizeof(vector128)); + buf, 0, 32 * sizeof(double)); return ret; } @@ -383,13 +385,16 @@ static int vsr_set(struct task_struct *target, const struct user_regset *regset, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - int ret; + double buf[32]; + int ret,i; flush_vsx_to_thread(target); ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - target->thread.fpr, 0, - 32 * sizeof(vector128)); + buf, 0, 32 * sizeof(double)); + for (i = 0; i < 32 ; i++) + current->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i]; + return ret; } @@ -499,8 +504,8 @@ static const struct user_regset native_regsets[] = { #endif #ifdef CONFIG_VSX [REGSET_VSX] = { - .n = 32, - .size = sizeof(vector128), .align = sizeof(vector128), + .core_note_type = NT_PPC_VSX, .n = 32, + .size = sizeof(double), .align = sizeof(double), .active = vsr_active, .get = vsr_get, .set = vsr_set }, #endif -- cgit v1.2.3