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authorNicholas Piggin <npiggin@gmail.com>2022-11-27 13:49:36 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2022-12-02 07:54:08 +0100
commit6f291a03819e4051ebc870471d26915ef2e6ba31 (patch)
tree4d30df1db1b8290dbfe1216694dfaf34e9c4d1e5 /arch/powerpc/include/asm/ptrace.h
parentpowerpc: add a define for the user interrupt frame size (diff)
downloadlinux-6f291a03819e4051ebc870471d26915ef2e6ba31.tar.xz
linux-6f291a03819e4051ebc870471d26915ef2e6ba31.zip
powerpc: add a define for the switch frame size and regs offset
This is open-coded in process.c, ppc32 uses a different define with the same value, and the C definition is name differently which makes it an extra indirection to grep for. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20221127124942.1665522-12-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm/ptrace.h')
-rw-r--r--arch/powerpc/include/asm/ptrace.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index 705ce26ae887..412ef0749775 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -97,8 +97,6 @@ struct pt_regs
#endif
-#define STACK_FRAME_WITH_PT_REGS (STACK_FRAME_OVERHEAD + sizeof(struct pt_regs))
-
// Always displays as "REGS" in memory dumps
#ifdef CONFIG_CPU_BIG_ENDIAN
#define STACK_FRAME_REGS_MARKER ASM_CONST(0x52454753)
@@ -125,6 +123,8 @@ struct pt_regs
#define STACK_USER_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_OVERHEAD)
#define STACK_INT_FRAME_REGS STACK_FRAME_OVERHEAD
#define STACK_INT_FRAME_MARKER (STACK_FRAME_OVERHEAD - 16)
+#define STACK_SWITCH_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_OVERHEAD)
+#define STACK_SWITCH_FRAME_REGS STACK_FRAME_OVERHEAD
#ifdef CONFIG_PPC64_ELF_ABI_V2
#define STACK_FRAME_MIN_SIZE 32
@@ -146,6 +146,8 @@ struct pt_regs
#define STACK_INT_FRAME_REGS STACK_FRAME_OVERHEAD
#define STACK_INT_FRAME_MARKER (STACK_FRAME_OVERHEAD - 8)
#define STACK_FRAME_MIN_SIZE STACK_FRAME_OVERHEAD
+#define STACK_SWITCH_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_OVERHEAD)
+#define STACK_SWITCH_FRAME_REGS STACK_FRAME_OVERHEAD
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE 64