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authorNicholas Piggin <npiggin@gmail.com>2022-11-27 15:49:42 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2022-12-02 09:54:09 +0300
commitdfecd06bc5524517ed7737c30eaaf747338b280a (patch)
treecf0a9aef4b082633748913be9bbec2589cf90904 /arch/powerpc/include/asm/ptrace.h
parentcd52414d5a6ccea6ce956ef05161fe824522a107 (diff)
downloadlinux-dfecd06bc5524517ed7737c30eaaf747338b280a.tar.xz
powerpc: remove STACK_FRAME_OVERHEAD
This is equal to STACK_FRAME_MIN_SIZE on 32-bit and 64-bit ELFv1, and no longer used in 64-bit ELFv2, so replace STACK_FRAME_OVERHEAD occurrences with STACK_FRAME_MIN_SIZE. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20221127124942.1665522-18-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm/ptrace.h')
-rw-r--r--arch/powerpc/include/asm/ptrace.h24
1 files changed, 11 insertions, 13 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index 4ab606f390bc..0eb90a013346 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -118,7 +118,6 @@ struct pt_regs
#define USER_REDZONE_SIZE 512
#define KERNEL_REDZONE_SIZE 288
-#define STACK_FRAME_OVERHEAD 112 /* size of minimum stack frame */
#define STACK_FRAME_LR_SAVE 2 /* Location of LR in stack frame */
#ifdef CONFIG_PPC64_ELF_ABI_V2
@@ -135,11 +134,11 @@ struct pt_regs
* so the second from last one of those is used for the frame marker.
*/
#define STACK_FRAME_MIN_SIZE 112
-#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
+#define STACK_USER_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE)
+#define STACK_INT_FRAME_REGS STACK_FRAME_MIN_SIZE
+#define STACK_INT_FRAME_MARKER (STACK_FRAME_MIN_SIZE - 16)
+#define STACK_SWITCH_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE)
+#define STACK_SWITCH_FRAME_REGS STACK_FRAME_MIN_SIZE
#endif
/* Size of dummy stack frame allocated when calling signal handler. */
@@ -150,14 +149,13 @@ struct pt_regs
#define USER_REDZONE_SIZE 0
#define KERNEL_REDZONE_SIZE 0
-#define STACK_FRAME_OVERHEAD 16 /* size of minimum stack frame */
+#define STACK_FRAME_MIN_SIZE 16
#define STACK_FRAME_LR_SAVE 1 /* Location of LR in stack frame */
-#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 - 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
+#define STACK_USER_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE)
+#define STACK_INT_FRAME_REGS STACK_FRAME_MIN_SIZE
+#define STACK_INT_FRAME_MARKER (STACK_FRAME_MIN_SIZE - 8)
+#define STACK_SWITCH_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_MIN_SIZE)
+#define STACK_SWITCH_FRAME_REGS STACK_FRAME_MIN_SIZE
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE 64