Gabe Black | 20cdb24 | 2013-12-11 00:23:15 -0800 | [diff] [blame] | 1 | /* |
Gabe Black | 20cdb24 | 2013-12-11 00:23:15 -0800 | [diff] [blame] | 2 | * |
| 3 | * Copyright 2013 Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #ifndef _ARCH_EXCEPTION_H |
| 30 | #define _ARCH_EXCEPTION_H |
| 31 | |
Subrata Banik | afa3910 | 2024-05-18 12:26:40 +0000 | [diff] [blame^] | 32 | #include <stddef.h> |
Gabe Black | 20cdb24 | 2013-12-11 00:23:15 -0800 | [diff] [blame] | 33 | #include <stdint.h> |
| 34 | |
Gabe Black | 20cdb24 | 2013-12-11 00:23:15 -0800 | [diff] [blame] | 35 | void exception_init_asm(void); |
Julius Werner | 092cac5 | 2014-05-15 19:41:52 -0700 | [diff] [blame] | 36 | void exception_dispatch(void); |
Raul E Rangel | cf79c83 | 2018-08-22 10:03:05 -0600 | [diff] [blame] | 37 | void enable_interrupts(void); |
| 38 | void disable_interrupts(void); |
| 39 | /** Returns 1 if interrupts are enabled. */ |
| 40 | int interrupts_enabled(void); |
Gabe Black | 20cdb24 | 2013-12-11 00:23:15 -0800 | [diff] [blame] | 41 | |
Subrata Banik | afa3910 | 2024-05-18 12:26:40 +0000 | [diff] [blame^] | 42 | #if CONFIG(LP_ARCH_X86_64) |
| 43 | struct exception_state { |
Julius Werner | 092cac5 | 2014-05-15 19:41:52 -0700 | [diff] [blame] | 44 | /* Careful: x86/gdb.c currently relies on the size and order of regs. */ |
| 45 | struct { |
Subrata Banik | afa3910 | 2024-05-18 12:26:40 +0000 | [diff] [blame^] | 46 | size_t reg_ax; |
| 47 | size_t reg_bx; |
| 48 | size_t reg_cx; |
| 49 | size_t reg_dx; |
| 50 | size_t reg_si; |
| 51 | size_t reg_di; |
| 52 | size_t reg_bp; |
| 53 | size_t reg_sp; |
| 54 | size_t reg_r8; |
| 55 | size_t reg_r9; |
| 56 | size_t reg_r10; |
| 57 | size_t reg_r11; |
| 58 | size_t reg_r12; |
| 59 | size_t reg_r13; |
| 60 | size_t reg_r14; |
| 61 | size_t reg_r15; |
| 62 | size_t reg_ip; |
| 63 | size_t reg_flags; |
Julius Werner | 092cac5 | 2014-05-15 19:41:52 -0700 | [diff] [blame] | 64 | u32 cs; |
| 65 | u32 ss; |
| 66 | u32 ds; |
| 67 | u32 es; |
| 68 | u32 fs; |
| 69 | u32 gs; |
| 70 | } regs; |
Subrata Banik | afa3910 | 2024-05-18 12:26:40 +0000 | [diff] [blame^] | 71 | size_t error_code; |
| 72 | size_t vector; |
Stefan Reinauer | 6a00113 | 2017-07-13 02:20:27 +0200 | [diff] [blame] | 73 | } __packed; |
Subrata Banik | afa3910 | 2024-05-18 12:26:40 +0000 | [diff] [blame^] | 74 | #else |
| 75 | struct exception_state { |
| 76 | /* Careful: x86/gdb.c currently relies on the size and order of regs. */ |
| 77 | struct { |
| 78 | size_t reg_ax; |
| 79 | size_t reg_cx; |
| 80 | size_t reg_dx; |
| 81 | size_t reg_bx; |
| 82 | size_t reg_sp; |
| 83 | size_t reg_bp; |
| 84 | size_t reg_si; |
| 85 | size_t reg_di; |
| 86 | size_t reg_ip; |
| 87 | size_t reg_flags; |
| 88 | u32 cs; |
| 89 | u32 ss; |
| 90 | u32 ds; |
| 91 | u32 es; |
| 92 | u32 fs; |
| 93 | u32 gs; |
| 94 | } regs; |
| 95 | size_t error_code; |
| 96 | size_t vector; |
| 97 | } __packed; |
| 98 | #endif |
| 99 | |
Julius Werner | 092cac5 | 2014-05-15 19:41:52 -0700 | [diff] [blame] | 100 | extern struct exception_state *exception_state; |
| 101 | |
Subrata Banik | afa3910 | 2024-05-18 12:26:40 +0000 | [diff] [blame^] | 102 | extern u8 exception_stack[]; |
| 103 | extern u8 *exception_stack_end; |
Gabe Black | 20cdb24 | 2013-12-11 00:23:15 -0800 | [diff] [blame] | 104 | |
| 105 | enum { |
| 106 | EXC_DE = 0, /* Divide by zero */ |
| 107 | EXC_DB = 1, /* Debug */ |
| 108 | EXC_NMI = 2, /* Non maskable interrupt */ |
| 109 | EXC_BP = 3, /* Breakpoint */ |
| 110 | EXC_OF = 4, /* Overflow */ |
| 111 | EXC_BR = 5, /* Bound range */ |
| 112 | EXC_UD = 6, /* Invalid opcode */ |
| 113 | EXC_NM = 7, /* Device not available */ |
| 114 | EXC_DF = 8, /* Double fault */ |
| 115 | EXC_TS = 10, /* Invalid TSS */ |
| 116 | EXC_NP = 11, /* Segment not present */ |
| 117 | EXC_SS = 12, /* Stack */ |
| 118 | EXC_GP = 13, /* General protection */ |
| 119 | EXC_PF = 14, /* Page fault */ |
| 120 | EXC_MF = 16, /* x87 floating point */ |
| 121 | EXC_AC = 17, /* Alignment check */ |
| 122 | EXC_MC = 18, /* Machine check */ |
| 123 | EXC_XF = 19, /* SIMD floating point */ |
| 124 | EXC_SX = 30, /* Security */ |
| 125 | EXC_COUNT |
| 126 | }; |
| 127 | |
| 128 | #endif |