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Subject[PATCH 04/24] arm: Remove signal translation and exec_domain
Date
As execution domain support is gone we can remove
signal translation from the signal code and remove
exec_domain from thread_info.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
arch/arm/include/asm/thread_info.h | 3 ---
arch/arm/kernel/asm-offsets.c | 1 -
arch/arm/kernel/signal.c | 13 +------------
arch/arm/kernel/traps.c | 5 ++---
4 files changed, 3 insertions(+), 19 deletions(-)

diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 72812a1..bd32ede 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -23,7 +23,6 @@
#ifndef __ASSEMBLY__

struct task_struct;
-struct exec_domain;

#include <asm/types.h>
#include <asm/domain.h>
@@ -53,7 +52,6 @@ struct thread_info {
int preempt_count; /* 0 => preemptable, <0 => bug */
mm_segment_t addr_limit; /* address limit */
struct task_struct *task; /* main task structure */
- struct exec_domain *exec_domain; /* execution domain */
__u32 cpu; /* cpu */
__u32 cpu_domain; /* cpu domain */
struct cpu_context_save cpu_context; /* cpu context */
@@ -73,7 +71,6 @@ struct thread_info {
#define INIT_THREAD_INFO(tsk) \
{ \
.task = &tsk, \
- .exec_domain = &default_exec_domain, \
.flags = 0, \
.preempt_count = INIT_PREEMPT_COUNT, \
.addr_limit = KERNEL_DS, \
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index 2d2d608..70d277c 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -66,7 +66,6 @@ int main(void)
DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
DEFINE(TI_TASK, offsetof(struct thread_info, task));
- DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
DEFINE(TI_CPU_DOMAIN, offsetof(struct thread_info, cpu_domain));
DEFINE(TI_CPU_SAVE, offsetof(struct thread_info, cpu_context));
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 023ac90..423663e 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -318,17 +318,6 @@ get_sigframe(struct ksignal *ksig, struct pt_regs *regs, int framesize)
return frame;
}

-/*
- * translate the signal
- */
-static inline int map_sig(int sig)
-{
- struct thread_info *thread = current_thread_info();
- if (sig < 32 && thread->exec_domain && thread->exec_domain->signal_invmap)
- sig = thread->exec_domain->signal_invmap[sig];
- return sig;
-}
-
static int
setup_return(struct pt_regs *regs, struct ksignal *ksig,
unsigned long __user *rc, void __user *frame)
@@ -412,7 +401,7 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
}
}

- regs->ARM_r0 = map_sig(ksig->sig);
+ regs->ARM_r0 = ksig->sig;
regs->ARM_sp = (unsigned long)frame;
regs->ARM_lr = retcode;
regs->ARM_pc = handler;
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 788e23f..fac2c7e 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -508,9 +508,8 @@ static int bad_syscall(int n, struct pt_regs *regs)
struct thread_info *thread = current_thread_info();
siginfo_t info;

- if ((current->personality & PER_MASK) != PER_LINUX &&
- thread->exec_domain->handler) {
- thread->exec_domain->handler(n, regs);
+ if ((current->personality & PER_MASK) != PER_LINUX) {
+ send_sig(SIGSEGV, current, 1);
return regs->ARM_r0;
}

--
1.8.4.5


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