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| author | Dave Martin <dave.martin@linaro.org> | 2011-04-18 14:48:23 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-14 21:36:55 +0100 |
| commit | 5be6f62b0059a3344437b4c2877152c58cb3fdeb (patch) | |
| tree | 30221692ca5f74e43f1534e6bf9c965cb78f3601 /arch/arm/include | |
| parent | 4c3b512c6b054e8c0bf14b1d61b20d4569de0a21 (diff) | |
| download | linux-stable-5be6f62b0059a3344437b4c2877152c58cb3fdeb.tar.gz linux-stable-5be6f62b0059a3344437b4c2877152c58cb3fdeb.tar.bz2 linux-stable-5be6f62b0059a3344437b4c2877152c58cb3fdeb.zip | |
ARM: 6883/1: ptrace: Migrate to regsets framework
This patch migrates the implementation of the ptrace interface for
the core integer registers, legacy FPA registers and VFP registers
to use the regsets framework.
As an added bonus, all this stuff gets included in coredumps
at no extra cost. Without this patch, coredumps contained no
VFP state.
Third-party extension register sets (iwmmx, crunch) are not migrated
by this patch, and continue to use the old implementation;
these should be migratable without much extra work.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Will Deacon <Will.Deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/elf.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/ptrace.h | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h index c3cd8755e648..0e9ce8d9686e 100644 --- a/arch/arm/include/asm/elf.h +++ b/arch/arm/include/asm/elf.h @@ -108,6 +108,7 @@ struct task_struct; int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); #define ELF_CORE_COPY_TASK_REGS dump_task_regs +#define CORE_DUMP_USE_REGSET #define ELF_EXEC_PAGESIZE 4096 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h index a8ff22b2a391..312d10877bd7 100644 --- a/arch/arm/include/asm/ptrace.h +++ b/arch/arm/include/asm/ptrace.h @@ -128,6 +128,12 @@ struct pt_regs { #define ARM_r0 uregs[0] #define ARM_ORIG_r0 uregs[17] +/* + * The size of the user-visible VFP state as seen by PTRACE_GET/SETVFPREGS + * and core dumps. + */ +#define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ ) + #ifdef __KERNEL__ #define user_mode(regs) \ |