diff options
| author | Gabe Black <gabeblack@google.com> | 2013-12-11 00:23:15 -0800 |
|---|---|---|
| committer | Marc Jones <marc.jones@se-eng.com> | 2014-12-09 18:39:06 +0100 |
| commit | 20cdb2439f7e76f78d2618220fc1a0061afd57cd (patch) | |
| tree | b5b21e423a0ed6c3138074bc6d8655d70443aba2 /payloads/libpayload/include/x86/arch | |
| parent | c09cf0b7e17cc48576d09d3c48df8625ea5c990b (diff) | |
libpayload: Make it possible to install callbacks for particular exceptions.
To support a GDB stub, it will be necessary to trap various exceptions which
will be used to implement breakpoints, single stepping, etc.
BUG=None
TEST=Built and booted on Link with hooks installed and saw that they
triggered when exceptions occurred. Built and booted on nyan.
BRANCH=None
Original-Change-Id: Iab659365864a3055159a50b8f6e5c44290d3ba2b
Original-Signed-off-by: Gabe Black <gabeblack@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/179602
Original-Reviewed-by: Gabe Black <gabeblack@chromium.org>
Original-Tested-by: Gabe Black <gabeblack@chromium.org>
Original-Commit-Queue: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 8db0897b1ddad600e247cb4df147c757a8187626)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I5e7f724b99988cd259909dd3bd01166fa52317ec
Reviewed-on: http://review.coreboot.org/7656
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'payloads/libpayload/include/x86/arch')
| -rw-r--r-- | payloads/libpayload/include/x86/arch/exception.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/payloads/libpayload/include/x86/arch/exception.h b/payloads/libpayload/include/x86/arch/exception.h new file mode 100644 index 0000000000..82f2ca0a32 --- /dev/null +++ b/payloads/libpayload/include/x86/arch/exception.h @@ -0,0 +1,81 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_EXCEPTION_H +#define _ARCH_EXCEPTION_H + +#include <stdint.h> + +void exception_dispatch(void); +void exception_init_asm(void); + +struct exception_state +{ + uint32_t eax; + uint32_t ecx; + uint32_t edx; + uint32_t ebx; + uint32_t esp; + uint32_t ebp; + uint32_t esi; + uint32_t edi; + uint32_t eip; + uint32_t eflags; + uint32_t cs; + uint32_t ss; + uint32_t ds; + uint32_t es; + uint32_t fs; + uint32_t gs; +} __attribute__((packed)); + +enum { + EXC_DE = 0, /* Divide by zero */ + EXC_DB = 1, /* Debug */ + EXC_NMI = 2, /* Non maskable interrupt */ + EXC_BP = 3, /* Breakpoint */ + EXC_OF = 4, /* Overflow */ + EXC_BR = 5, /* Bound range */ + EXC_UD = 6, /* Invalid opcode */ + EXC_NM = 7, /* Device not available */ + EXC_DF = 8, /* Double fault */ + EXC_TS = 10, /* Invalid TSS */ + EXC_NP = 11, /* Segment not present */ + EXC_SS = 12, /* Stack */ + EXC_GP = 13, /* General protection */ + EXC_PF = 14, /* Page fault */ + EXC_MF = 16, /* x87 floating point */ + EXC_AC = 17, /* Alignment check */ + EXC_MC = 18, /* Machine check */ + EXC_XF = 19, /* SIMD floating point */ + EXC_SX = 30, /* Security */ + EXC_COUNT +}; + +#endif |