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authorDavid Daney <david.daney@cavium.com>2013-05-23 02:35:56 +0400
committerRalf Baechle <ralf@linux-mips.org>2013-05-23 12:19:04 +0400
commit8f657933a3c2086d4731350c98f91a990783c0d3 (patch)
tree298c60e432e33537cc0c7c4eef6aa545b1449612 /arch/mips/include/asm
parentbe8a6d452bda4b1b842e81a99bb86f77a1cb8279 (diff)
downloadlinux-8f657933a3c2086d4731350c98f91a990783c0d3.tar.xz
MIPS: Quit exposing Kconfig symbols in uapi headers.
The kernel's struct pt_regs has many fields conditional on various Kconfig variables, we cannot be exporting this garbage to user-space. Move the kernel's definition to asm/ptrace.h, and put a uapi only version in uapi/asm/ptrace.h gated by #ifndef __KERNEL__ Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5305/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm')
-rw-r--r--arch/mips/include/asm/ptrace.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index a3186f2bb8a0..5e6cd0947393 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -16,6 +16,38 @@
#include <asm/isadep.h>
#include <uapi/asm/ptrace.h>
+/*
+ * This struct defines the way the registers are stored on the stack during a
+ * system call/exception. As usual the registers k0/k1 aren't being saved.
+ */
+struct pt_regs {
+#ifdef CONFIG_32BIT
+ /* Pad bytes for argument save space on the stack. */
+ unsigned long pad0[6];
+#endif
+
+ /* Saved main processor registers. */
+ unsigned long regs[32];
+
+ /* Saved special registers. */
+ unsigned long cp0_status;
+ unsigned long hi;
+ unsigned long lo;
+#ifdef CONFIG_CPU_HAS_SMARTMIPS
+ unsigned long acx;
+#endif
+ unsigned long cp0_badvaddr;
+ unsigned long cp0_cause;
+ unsigned long cp0_epc;
+#ifdef CONFIG_MIPS_MT_SMTC
+ unsigned long cp0_tcstatus;
+#endif /* CONFIG_MIPS_MT_SMTC */
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ unsigned long long mpl[3]; /* MTM{0,1,2} */
+ unsigned long long mtp[3]; /* MTP{0,1,2} */
+#endif
+} __aligned(8);
+
struct task_struct;
extern int ptrace_getregs(struct task_struct *child, __s64 __user *data);