From 1de765c1e940e23d83ec57035769e8af003f8796 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sat, 6 Sep 2008 10:14:24 +0100
Subject: [PATCH] [ARM] remove pc_pointer()
pc_pointer() was a function to mask the PC for 26-bit ARMs, which
we no longer support. Remove it.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
arch/arm/include/asm/ptrace.h | 7 +------
arch/arm/include/asm/thread_info.h | 2 +-
arch/arm/kernel/process.c | 2 +-
arch/arm/kernel/ptrace.c | 8 +++-----
arch/arm/kernel/time.c | 2 +-
5 files changed, 7 insertions(+), 14 deletions(-)
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index b415c0e854589..73192618f1c2d 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -54,7 +54,6 @@
#define PSR_C_BIT 0x20000000
#define PSR_Z_BIT 0x40000000
#define PSR_N_BIT 0x80000000
-#define PCMASK 0
/*
* Groups of PSR bits
@@ -139,11 +138,7 @@ static inline int valid_user_regs(struct pt_regs *regs)
return 0;
}
-#define pc_pointer(v) \
- ((v) & ~PCMASK)
-
-#define instruction_pointer(regs) \
- (pc_pointer((regs)->ARM_pc))
+#define instruction_pointer(regs) (regs)->ARM_pc
#ifdef CONFIG_SMP
extern unsigned long profile_pc(struct pt_regs *regs);
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index e56fa48e4ae78..68b9ec82a37ff 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -98,7 +98,7 @@ static inline struct thread_info *current_thread_info(void)
}
#define thread_saved_pc(tsk) \
- ((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc)))
+ ((unsigned long)(task_thread_info(tsk)->cpu_context.pc))
#define thread_saved_fp(tsk) \
((unsigned long)(task_thread_info(tsk)->cpu_context.fp))
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index a2e75420858ec..2ce9a401c8f24 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -385,7 +385,7 @@ unsigned long get_wchan(struct task_struct *p)
do {
if (fp < stack_start || fp > stack_end)
return 0;
- lr = pc_pointer (((unsigned long *)fp)[-1]);
+ lr = ((unsigned long *)fp)[-1];
if (!in_sched_functions(lr))
return lr;
fp = *(unsigned long *) (fp - 12);
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 4b05dc5c10236..77ea1f27f4062 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -126,7 +126,7 @@ ptrace_getrn(struct task_struct *child, unsigned long insn)
val = get_user_reg(child, reg);
if (reg == 15)
- val = pc_pointer(val + 8);
+ val += 8;
return val;
}
@@ -278,8 +278,7 @@ get_branch_address(struct task_struct *child, unsigned long pc, unsigned long in
else
base -= aluop2;
}
- if (read_u32(child, base, &alt) == 0)
- alt = pc_pointer(alt);
+ read_u32(child, base, &alt);
}
break;
@@ -305,8 +304,7 @@ get_branch_address(struct task_struct *child, unsigned long pc, unsigned long in
base = ptrace_getrn(child, insn);
- if (read_u32(child, base + nr_regs, &alt) == 0)
- alt = pc_pointer(alt);
+ read_u32(child, base + nr_regs, &alt);
break;
}
break;
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 368d171754cf3..c68b44aa88d27 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -59,7 +59,7 @@ unsigned long profile_pc(struct pt_regs *regs)
if (in_lock_functions(pc)) {
fp = regs->ARM_fp;
- pc = pc_pointer(((unsigned long *)fp)[-1]);
+ pc = ((unsigned long *)fp)[-1];
}
return pc;