diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 398fd3c5922848ed163309ac2d0dbcfb6e687cd1..e5d57f6754ed7150741bad7b8b38d3a4c4df6cc8 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1325,13 +1325,6 @@ SYM_CODE_START(native_iret) SYM_CODE_END(native_iret) #endif -SYM_CODE_START(overflow) - ASM_CLAC - pushl $0 - pushl $do_overflow - jmp common_exception -SYM_CODE_END(overflow) - SYM_CODE_START(bounds) ASM_CLAC pushl $0 diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index e18594d2dffd197acd428332e135307637fd21ed..eb503b0b0cffe87144e9e74e960a70a172e05376 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -1072,7 +1072,6 @@ apicinterrupt IRQ_WORK_VECTOR irq_work_interrupt smp_irq_work_interrupt * Exception entry points. */ -idtentry X86_TRAP_OF overflow do_overflow has_error_code=0 idtentry X86_TRAP_BP int3 do_int3 has_error_code=0 idtentry X86_TRAP_BR bounds do_bounds has_error_code=0 idtentry X86_TRAP_UD invalid_op do_invalid_op has_error_code=0 diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h index e6f6e296bfec07b7b183270eb1fb4f1f06b89926..54c41b3a292584e406d87c0a8ec67b3a530bd609 100644 --- a/arch/x86/include/asm/idtentry.h +++ b/arch/x86/include/asm/idtentry.h @@ -78,5 +78,6 @@ static __always_inline void __##func(struct pt_regs *regs) /* Simple exception entry points. No hardware error code */ DECLARE_IDTENTRY(X86_TRAP_DE, exc_divide_error); +DECLARE_IDTENTRY(X86_TRAP_OF, exc_overflow); #endif diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h index e68cbf87fe4a09327b8075aed9f077df053bf789..1b0452c4704487c8fd114c051d18a96fed589940 100644 --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -14,7 +14,6 @@ asmlinkage void debug(void); asmlinkage void nmi(void); asmlinkage void int3(void); -asmlinkage void overflow(void); asmlinkage void bounds(void); asmlinkage void invalid_op(void); asmlinkage void device_not_available(void); @@ -40,7 +39,6 @@ asmlinkage void simd_coprocessor_error(void); asmlinkage void xen_xennmi(void); asmlinkage void xen_xendebug(void); asmlinkage void xen_int3(void); -asmlinkage void xen_overflow(void); asmlinkage void xen_bounds(void); asmlinkage void xen_invalid_op(void); asmlinkage void xen_device_not_available(void); @@ -63,7 +61,6 @@ asmlinkage void xen_simd_coprocessor_error(void); dotraplinkage void do_debug(struct pt_regs *regs, long error_code); dotraplinkage void do_nmi(struct pt_regs *regs, long error_code); dotraplinkage void do_int3(struct pt_regs *regs, long error_code); -dotraplinkage void do_overflow(struct pt_regs *regs, long error_code); dotraplinkage void do_bounds(struct pt_regs *regs, long error_code); dotraplinkage void do_invalid_op(struct pt_regs *regs, long error_code); dotraplinkage void do_device_not_available(struct pt_regs *regs, long error_code); diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index f2a751b10a01aa16222b1b9915901b2795d32da7..f8d79629535eb21f45a6bd58cf3bdc3c8cdf4513 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -99,7 +99,7 @@ static const __initconst struct idt_data def_idts[] = { INTG(X86_TRAP_MC, machine_check), #endif - SYSG(X86_TRAP_OF, overflow), + SYSG(X86_TRAP_OF, asm_exc_overflow), #if defined(CONFIG_IA32_EMULATION) SYSG(IA32_SYSCALL_VECTOR, entry_INT80_compat), #elif defined(CONFIG_X86_32) diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 37092f74ec42ac46797f31ea98d2bb002dc6a5bc..b522e2aa9e9afb442cca26efa87b72c398b42edd 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -226,6 +226,11 @@ DEFINE_IDTENTRY(exc_divide_error) FPE_INTDIV, error_get_trap_addr(regs)); } +DEFINE_IDTENTRY(exc_overflow) +{ + do_error_trap(regs, 0, "overflow", X86_TRAP_OF, SIGSEGV, 0, NULL); +} + #define IP ((void __user *)uprobe_get_trap_addr(regs)) #define DO_ERROR(trapnr, signr, sicode, addr, str, name) \ dotraplinkage void do_##name(struct pt_regs *regs, long error_code) \ @@ -233,7 +238,6 @@ dotraplinkage void do_##name(struct pt_regs *regs, long error_code) \ do_error_trap(regs, error_code, str, trapnr, signr, sicode, addr); \ } -DO_ERROR(X86_TRAP_OF, SIGSEGV, 0, NULL, "overflow", overflow) DO_ERROR(X86_TRAP_UD, SIGILL, ILL_ILLOPN, IP, "invalid opcode", invalid_op) DO_ERROR(X86_TRAP_OLD_MF, SIGFPE, 0, NULL, "coprocessor segment overrun", coprocessor_segment_overrun) DO_ERROR(X86_TRAP_TS, SIGSEGV, 0, NULL, "invalid TSS", invalid_TSS) diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 06c53c94c813e72f49709a0afa26e428665e9118..25cf701f916b912cdcb3a110197cfc5ea4ed3c42 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -617,7 +617,7 @@ static struct trap_array_entry trap_array[] = { #endif { nmi, xen_xennmi, true }, { int3, xen_int3, false }, - { overflow, xen_overflow, false }, + TRAP_ENTRY(exc_overflow, false ), #ifdef CONFIG_IA32_EMULATION { entry_INT80_compat, xen_entry_INT80_compat, false }, #endif diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S index 48ac67ef094a8eafee91e1b9ac73db8a2c90e24c..c9c86a06b25d39d860520e16c662c212dd173399 100644 --- a/arch/x86/xen/xen-asm_64.S +++ b/arch/x86/xen/xen-asm_64.S @@ -33,7 +33,7 @@ xen_pv_trap debug xen_pv_trap xendebug xen_pv_trap int3 xen_pv_trap xennmi -xen_pv_trap overflow +xen_pv_trap asm_exc_overflow xen_pv_trap bounds xen_pv_trap invalid_op xen_pv_trap device_not_available