diff options
Diffstat (limited to 'arch/mips/kernel/process.c')
-rw-r--r-- | arch/mips/kernel/process.c | 60 |
1 files changed, 4 insertions, 56 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 0a1ec0f3beff..636b0745d7c7 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -21,7 +21,6 @@ #include <linux/mman.h> #include <linux/personality.h> #include <linux/sys.h> -#include <linux/user.h> #include <linux/init.h> #include <linux/completion.h> #include <linux/kallsyms.h> @@ -36,6 +35,7 @@ #include <asm/pgtable.h> #include <asm/mipsregs.h> #include <asm/processor.h> +#include <asm/reg.h> #include <asm/uaccess.h> #include <asm/io.h> #include <asm/elf.h> @@ -66,6 +66,7 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) clear_used_math(); clear_fpu_owner(); init_dsp(); + clear_thread_flag(TIF_USEDMSA); clear_thread_flag(TIF_MSA_CTX_LIVE); disable_msa(); regs->cp0_epc = pc; @@ -141,6 +142,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, childregs->cp0_status &= ~(ST0_CU2|ST0_CU1); clear_tsk_thread_flag(p, TIF_USEDFPU); + clear_tsk_thread_flag(p, TIF_USEDMSA); + clear_tsk_thread_flag(p, TIF_MSA_CTX_LIVE); #ifdef CONFIG_MIPS_MT_FPAFF clear_tsk_thread_flag(p, TIF_FPUBOUND); @@ -152,61 +155,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, return 0; } -/* Fill in the fpu structure for a core dump.. */ -int dump_fpu(struct pt_regs *regs, elf_fpregset_t *r) -{ - int i; - - for (i = 0; i < NUM_FPU_REGS; i++) - memcpy(&r[i], ¤t->thread.fpu.fpr[i], sizeof(*r)); - - memcpy(&r[NUM_FPU_REGS], ¤t->thread.fpu.fcr31, - sizeof(current->thread.fpu.fcr31)); - - return 1; -} - -void elf_dump_regs(elf_greg_t *gp, struct pt_regs *regs) -{ - int i; - - for (i = 0; i < EF_R0; i++) - gp[i] = 0; - gp[EF_R0] = 0; - for (i = 1; i <= 31; i++) - gp[EF_R0 + i] = regs->regs[i]; - gp[EF_R26] = 0; - gp[EF_R27] = 0; - gp[EF_LO] = regs->lo; - gp[EF_HI] = regs->hi; - gp[EF_CP0_EPC] = regs->cp0_epc; - gp[EF_CP0_BADVADDR] = regs->cp0_badvaddr; - gp[EF_CP0_STATUS] = regs->cp0_status; - gp[EF_CP0_CAUSE] = regs->cp0_cause; -#ifdef EF_UNUSED0 - gp[EF_UNUSED0] = 0; -#endif -} - -int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs) -{ - elf_dump_regs(*regs, task_pt_regs(tsk)); - return 1; -} - -int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpr) -{ - int i; - - for (i = 0; i < NUM_FPU_REGS; i++) - memcpy(&fpr[i], &t->thread.fpu.fpr[i], sizeof(*fpr)); - - memcpy(&fpr[NUM_FPU_REGS], &t->thread.fpu.fcr31, - sizeof(t->thread.fpu.fcr31)); - - return 1; -} - #ifdef CONFIG_CC_STACKPROTECTOR #include <linux/stackprotector.h> unsigned long __stack_chk_guard __read_mostly; |