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From: Christoph Hellwig <hch@lst.de>
To: Oleg Nesterov <oleg@redhat.com>, Arnd Bergmann <arnd@arndb.de>
Cc: x86@kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-sh@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2/5] powerpc: don't use asm-generic/ptrace.h
Date: Mon, 20 May 2019 08:00:15 +0200
Message-ID: <20190520060018.25569-3-hch@lst.de> (raw)
In-Reply-To: <20190520060018.25569-1-hch@lst.de>

Doing the indirection through macros for the regs accessors just
makes them harder to read, so implement the helpers directly.

Note that only the helpers actually used are implemented now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/include/asm/ptrace.h | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index 6f047730e642..fc007d186a82 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -115,18 +115,33 @@ struct pt_regs
 
 #ifndef __ASSEMBLY__
 
-#define GET_IP(regs)		((regs)->nip)
-#define GET_USP(regs)		((regs)->gpr[1])
-#define GET_FP(regs)		(0)
-#define SET_FP(regs, val)
+static inline unsigned long instruction_pointer(struct pt_regs *regs)
+{
+	return regs->nip;
+}
+
+static inline void instruction_pointer_set(struct pt_regs *regs,
+		unsigned long val)
+{
+	regs->nip = val;
+}
+
+static inline unsigned long user_stack_pointer(struct pt_regs *regs)
+{
+	return regs->gpr[1];
+}
+
+static inline unsigned long frame_pointer(struct pt_regs *regs)
+{
+	return 0;
+}
 
 #ifdef CONFIG_SMP
 extern unsigned long profile_pc(struct pt_regs *regs);
-#define profile_pc profile_pc
+#else
+#define profile_pc(regs) instruction_pointer(regs)
 #endif
 
-#include <asm-generic/ptrace.h>
-
 #define kernel_stack_pointer(regs) ((regs)->gpr[1])
 static inline int is_syscall_success(struct pt_regs *regs)
 {
-- 
2.20.1


  parent reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-20  6:00 remove asm-generic/ptrace.h v2 Christoph Hellwig
2019-05-20  6:00 ` [PATCH 1/5] arm64: don't use asm-generic/ptrace.h Christoph Hellwig
2019-05-20  6:00 ` Christoph Hellwig [this message]
2019-05-20  6:00 ` [PATCH 3/5] sh: " Christoph Hellwig
2019-05-20  6:00 ` [PATCH 4/5] x86: " Christoph Hellwig
2019-05-20 16:02   ` Oleg Nesterov
2019-05-20  6:00 ` [PATCH 5/5] asm-generic: remove ptrace.h Christoph Hellwig
2019-05-20 16:03   ` Oleg Nesterov
2019-06-04  7:02 ` remove asm-generic/ptrace.h v2 Christoph Hellwig
2019-06-14  7:49   ` Christoph Hellwig
  -- strict thread matches above, loose matches on Subject: below --
2019-06-24  5:47 remove asm-generic/ptrace.h v3 Christoph Hellwig
2019-06-24  5:47 ` [PATCH 2/5] powerpc: don't use asm-generic/ptrace.h Christoph Hellwig
2019-05-01 17:39 remove asm-generic/ptrace.h Christoph Hellwig
2019-05-01 17:39 ` [PATCH 2/5] powerpc: don't use asm-generic/ptrace.h Christoph Hellwig
2019-05-02  3:30   ` Michael Ellerman

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