Unverified Commit 2c096246 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!9997 openrisc: traps: Don't send signals to kernel mode threads 

Merge Pull Request from: @ci-robot 
 
PR sync from: Cui GaoSheng <cuigaosheng1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/MMAHZLZXCDU6TOCIJMWM7TFXHT6LLAPP/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA6SH4 
 
Link:https://gitee.com/openeuler/kernel/pulls/9997

 

Reviewed-by: default avatarZhang Peng <zhangpeng362@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 8a60d2dc 90fc3b76

arch/openrisc/kernel/traps.c

+29 −19
Original line number Diff line number Diff line
@@ -180,6 +180,7 @@ asmlinkage void unhandled_exception(struct pt_regs *regs, int ea, int vector) 


asmlinkage void do_fpe_trap(struct pt_regs *regs, unsigned long address)

{

	if (user_mode(regs)) {

		int code = FPE_FLTUNK;

		unsigned long fpcsr = regs->fpcsr;
@@ -198,11 +199,20 @@ asmlinkage void do_fpe_trap(struct pt_regs *regs, unsigned long address) 
		regs->fpcsr &= ~SPR_FPCSR_ALLF;



		force_sig_fault(SIGFPE, code, (void __user *)regs->pc);

	} else {

		pr_emerg("KERNEL: Illegal fpe exception 0x%.8lx\n", regs->pc);

		die("Die:", regs, SIGFPE);

	}

}



asmlinkage void do_trap(struct pt_regs *regs, unsigned long address)

{

	if (user_mode(regs)) {

		force_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc);

	} else {

		pr_emerg("KERNEL: Illegal trap exception 0x%.8lx\n", regs->pc);

		die("Die:", regs, SIGILL);

	}

}



asmlinkage void do_unaligned_access(struct pt_regs *regs, unsigned long address)