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authorRichard Weinberger <richard@nod.at>2014-07-13 15:24:03 +0200
committerRichard Weinberger <richard@nod.at>2015-04-12 20:58:24 +0200
commita4980448ed658db313da3195bcca634c7a5adafa (patch)
treef3871d68c77b5a823f866f272e61957f38091d9d
parent973f911f55a0e510dd6db8bbb29cd82ff138d3c0 (diff)
arm: Remove signal translation and exec_domain
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>
-rw-r--r--arch/arm/include/asm/thread_info.h3
-rw-r--r--arch/arm/kernel/asm-offsets.c1
-rw-r--r--arch/arm/kernel/signal.c13
-rw-r--r--arch/arm/kernel/traps.c6
4 files changed, 3 insertions, 20 deletions
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 72812a1f3d1c..bd32eded3e50 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 2d2d6087b9b1..70d277ce235f 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 023ac905e4c3..423663e23791 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 788e23fe64d8..3dce1a342030 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -505,12 +505,10 @@ asmlinkage void bad_mode(struct pt_regs *regs, int reason)
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;
}