diff options
Diffstat (limited to 'arch/openrisc/kernel/entry.S')
| -rw-r--r-- | arch/openrisc/kernel/entry.S | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S index 54a87bba35ca..c7e90b09645e 100644 --- a/arch/openrisc/kernel/entry.S +++ b/arch/openrisc/kernel/entry.S @@ -173,7 +173,6 @@ handler: ;\ l.sw PT_GPR28(r1),r28 ;\ l.sw PT_GPR29(r1),r29 ;\ /* r30 already save */ ;\ -/* l.sw PT_GPR30(r1),r30*/ ;\ l.sw PT_GPR31(r1),r31 ;\ TRACE_IRQS_OFF_ENTRY ;\ /* Store -1 in orig_gpr11 for non-syscall exceptions */ ;\ @@ -211,9 +210,8 @@ handler: ;\ l.sw PT_GPR27(r1),r27 ;\ l.sw PT_GPR28(r1),r28 ;\ l.sw PT_GPR29(r1),r29 ;\ - /* r31 already saved */ ;\ - l.sw PT_GPR30(r1),r30 ;\ -/* l.sw PT_GPR31(r1),r31 */ ;\ + /* r30 already saved */ ;\ + l.sw PT_GPR31(r1),r31 ;\ /* Store -1 in orig_gpr11 for non-syscall exceptions */ ;\ l.addi r30,r0,-1 ;\ l.sw PT_ORIG_GPR11(r1),r30 ;\ @@ -241,6 +239,8 @@ handler: ;\ /* =====================================================[ exceptions] === */ + __REF + /* ---[ 0x100: RESET exception ]----------------------------------------- */ EXCEPTION_ENTRY(_tng_kernel_start) @@ -714,6 +714,10 @@ _syscall_check_trace_leave: * interrupts that set NEED_RESCHED or SIGNALPENDING... really true? */ _syscall_check_work: +#ifdef CONFIG_DEBUG_RSEQ + l.jal rseq_syscall + l.ori r3,r1,0 +#endif /* Here we need to disable interrupts */ DISABLE_INTERRUPTS(r27,r29) TRACE_IRQS_OFF @@ -844,9 +848,17 @@ _syscall_badsys: /******* END SYSCALL HANDLING *******/ -/* ---[ 0xd00: Trap exception ]------------------------------------------ */ +/* ---[ 0xd00: Floating Point exception ]-------------------------------- */ + +EXCEPTION_ENTRY(_fpe_trap_handler) + CLEAR_LWA_FLAG(r3) + + /* r4: EA of fault (set by EXCEPTION_HANDLE) */ + l.jal do_fpe_trap + l.addi r3,r1,0 /* pt_regs */ -UNHANDLED_EXCEPTION(_vector_0xd00,0xd00) + l.j _ret_from_exception + l.nop /* ---[ 0xe00: Trap exception ]------------------------------------------ */ |