diff options
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/Makefile | 1 | ||||
| -rw-r--r-- | arch/riscv/kernel/sys_riscv.c | 5 | ||||
| -rw-r--r-- | arch/riscv/kernel/traps.c | 4 |
3 files changed, 7 insertions, 3 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 110be14e6..b6c972941 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -66,6 +66,7 @@ ifeq ($(CONFIG_MODULE_SECTIONS),y) endif KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) +KBUILD_AFLAGS_MODULE += $(call as-option,-Wa$(comma)-mno-relax) # GCC versions that support the "-mstrict-align" option default to allowing # unaligned accesses. While unaligned accesses are explicitly allowed in the diff --git a/arch/riscv/kernel/sys_riscv.c b/arch/riscv/kernel/sys_riscv.c index db44da327..516aaa19d 100644 --- a/arch/riscv/kernel/sys_riscv.c +++ b/arch/riscv/kernel/sys_riscv.c @@ -26,9 +26,8 @@ static long riscv_sys_mmap(unsigned long addr, unsigned long len, if (unlikely(offset & (~PAGE_MASK >> page_shift_offset))) return -EINVAL; - if ((prot & PROT_WRITE) && (prot & PROT_EXEC)) - if (unlikely(!(prot & PROT_READ))) - return -EINVAL; + if (unlikely((prot & PROT_WRITE) && !(prot & PROT_READ))) + return -EINVAL; return ksys_mmap_pgoff(addr, len, prot, flags, fd, offset >> (PAGE_SHIFT - page_shift_offset)); diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c index 24a9333dd..7c6575050 100644 --- a/arch/riscv/kernel/traps.c +++ b/arch/riscv/kernel/traps.c @@ -22,6 +22,7 @@ #include <linux/mm.h> #include <linux/module.h> #include <linux/irq.h> +#include <linux/kexec.h> #include <asm/processor.h> #include <asm/ptrace.h> @@ -50,6 +51,9 @@ void die(struct pt_regs *regs, const char *str) ret = notify_die(DIE_OOPS, str, regs, 0, regs->scause, SIGSEGV); + if (regs && kexec_should_crash(current)) + crash_kexec(regs); + bust_spinlocks(0); add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); spin_unlock_irq(&die_lock); |