Commit 08c941bf authored by Marcin Nowakowski's avatar Marcin Nowakowski Committed by Ralf Baechle

MIPS: Move register dump routines out of ptrace code

Current register dump methods for MIPS are implemented inside ptrace
methods, but there will be other uses in the kernel for them, so keep
them separately in process.c and use those definitions for ptrace
instead.
Signed-off-by: default avatarMarcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14587/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent bff323d5
...@@ -210,6 +210,9 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG]; ...@@ -210,6 +210,9 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef double elf_fpreg_t; typedef double elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
void mips_dump_regs32(u32 *uregs, const struct pt_regs *regs);
void mips_dump_regs64(u64 *uregs, const struct pt_regs *regs);
#ifdef CONFIG_32BIT #ifdef CONFIG_32BIT
/* /*
* This is used to ensure we don't load something for the wrong architecture. * This is used to ensure we don't load something for the wrong architecture.
......
...@@ -729,3 +729,47 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value) ...@@ -729,3 +729,47 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value)
return 0; return 0;
} }
#if defined(CONFIG_32BIT) || defined(CONFIG_MIPS32_O32)
void mips_dump_regs32(u32 *uregs, const struct pt_regs *regs)
{
unsigned int i;
for (i = MIPS32_EF_R1; i <= MIPS32_EF_R31; i++) {
/* k0/k1 are copied as zero. */
if (i == MIPS32_EF_R26 || i == MIPS32_EF_R27)
uregs[i] = 0;
else
uregs[i] = regs->regs[i - MIPS32_EF_R0];
}
uregs[MIPS32_EF_LO] = regs->lo;
uregs[MIPS32_EF_HI] = regs->hi;
uregs[MIPS32_EF_CP0_EPC] = regs->cp0_epc;
uregs[MIPS32_EF_CP0_BADVADDR] = regs->cp0_badvaddr;
uregs[MIPS32_EF_CP0_STATUS] = regs->cp0_status;
uregs[MIPS32_EF_CP0_CAUSE] = regs->cp0_cause;
}
#endif /* CONFIG_32BIT || CONFIG_MIPS32_O32 */
#ifdef CONFIG_64BIT
void mips_dump_regs64(u64 *uregs, const struct pt_regs *regs)
{
unsigned int i;
for (i = MIPS64_EF_R1; i <= MIPS64_EF_R31; i++) {
/* k0/k1 are copied as zero. */
if (i == MIPS64_EF_R26 || i == MIPS64_EF_R27)
uregs[i] = 0;
else
uregs[i] = regs->regs[i - MIPS64_EF_R0];
}
uregs[MIPS64_EF_LO] = regs->lo;
uregs[MIPS64_EF_HI] = regs->hi;
uregs[MIPS64_EF_CP0_EPC] = regs->cp0_epc;
uregs[MIPS64_EF_CP0_BADVADDR] = regs->cp0_badvaddr;
uregs[MIPS64_EF_CP0_STATUS] = regs->cp0_status;
uregs[MIPS64_EF_CP0_CAUSE] = regs->cp0_cause;
}
#endif /* CONFIG_64BIT */
...@@ -294,23 +294,8 @@ static int gpr32_get(struct task_struct *target, ...@@ -294,23 +294,8 @@ static int gpr32_get(struct task_struct *target,
{ {
struct pt_regs *regs = task_pt_regs(target); struct pt_regs *regs = task_pt_regs(target);
u32 uregs[ELF_NGREG] = {}; u32 uregs[ELF_NGREG] = {};
unsigned i;
for (i = MIPS32_EF_R1; i <= MIPS32_EF_R31; i++) {
/* k0/k1 are copied as zero. */
if (i == MIPS32_EF_R26 || i == MIPS32_EF_R27)
continue;
uregs[i] = regs->regs[i - MIPS32_EF_R0];
}
uregs[MIPS32_EF_LO] = regs->lo;
uregs[MIPS32_EF_HI] = regs->hi;
uregs[MIPS32_EF_CP0_EPC] = regs->cp0_epc;
uregs[MIPS32_EF_CP0_BADVADDR] = regs->cp0_badvaddr;
uregs[MIPS32_EF_CP0_STATUS] = regs->cp0_status;
uregs[MIPS32_EF_CP0_CAUSE] = regs->cp0_cause;
mips_dump_regs32(uregs, regs);
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0, return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0,
sizeof(uregs)); sizeof(uregs));
} }
...@@ -373,23 +358,8 @@ static int gpr64_get(struct task_struct *target, ...@@ -373,23 +358,8 @@ static int gpr64_get(struct task_struct *target,
{ {
struct pt_regs *regs = task_pt_regs(target); struct pt_regs *regs = task_pt_regs(target);
u64 uregs[ELF_NGREG] = {}; u64 uregs[ELF_NGREG] = {};
unsigned i;
for (i = MIPS64_EF_R1; i <= MIPS64_EF_R31; i++) {
/* k0/k1 are copied as zero. */
if (i == MIPS64_EF_R26 || i == MIPS64_EF_R27)
continue;
uregs[i] = regs->regs[i - MIPS64_EF_R0];
}
uregs[MIPS64_EF_LO] = regs->lo;
uregs[MIPS64_EF_HI] = regs->hi;
uregs[MIPS64_EF_CP0_EPC] = regs->cp0_epc;
uregs[MIPS64_EF_CP0_BADVADDR] = regs->cp0_badvaddr;
uregs[MIPS64_EF_CP0_STATUS] = regs->cp0_status;
uregs[MIPS64_EF_CP0_CAUSE] = regs->cp0_cause;
mips_dump_regs64(uregs, regs);
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0, return user_regset_copyout(&pos, &count, &kbuf, &ubuf, uregs, 0,
sizeof(uregs)); sizeof(uregs));
} }
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment