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arm: Remove signal translation and exec_domain

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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>
This commit is contained in:
Richard Weinberger
2014-07-13 15:24:03 +02:00
parent 973f911f55
commit a4980448ed
4 changed files with 3 additions and 20 deletions
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1
arch/arm/kernel/asm-offsets.c
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@@ -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));

13
arch/arm/kernel/signal.c
View File

@@ -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;

6
arch/arm/kernel/traps.c
View File

@@ -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;
}