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authorDave Martin <dave.martin@linaro.org>2011-04-18 14:48:23 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-05-14 21:36:55 +0100
commit5be6f62b0059a3344437b4c2877152c58cb3fdeb (patch)
tree30221692ca5f74e43f1534e6bf9c965cb78f3601 /arch/arm/include/asm/ptrace.h
parent4c3b512c6b054e8c0bf14b1d61b20d4569de0a21 (diff)
downloadop-kernel-dev-5be6f62b0059a3344437b4c2877152c58cb3fdeb.zip
op-kernel-dev-5be6f62b0059a3344437b4c2877152c58cb3fdeb.tar.gz
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/asm/ptrace.h')
-rw-r--r--arch/arm/include/asm/ptrace.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index a8ff22b..312d108 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) \
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