diff options
| author | Marcin Nowakowski <marcin.nowakowski@imgtec.com> | 2016-11-21 13:23:38 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-01-03 18:34:44 +0300 |
| commit | 08c941bf6ec523d666a78f86e3d696ed45dfb6e5 (patch) | |
| tree | 233930faca8e590246adbbc19514d9f8bf6a5b82 /arch/mips/kernel/process.c | |
| parent | bff323d5653cf0ad83391b5a5f4ec7cc32acad1a (diff) | |
| download | linux-08c941bf6ec523d666a78f86e3d696ed45dfb6e5.tar.xz | |
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: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14587/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/process.c')
| -rw-r--r-- | arch/mips/kernel/process.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 3da0161bdf84..803e255b6fc3 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -729,3 +729,47 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value) 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 */ |