source: trunk/hal/x86_64/core/hal_exception.c @ 336

Last change on this file since 336 was 336, checked in by max@…, 4 years ago

Rename curcpu -> curtls.

File size: 2.8 KB
Line 
1/*
2 * hal_exception.c - Implementation of exception handler for x86_64
3 *
4 * Copyright (c) 2017 Maxime Villard
5 *
6 * This file is part of ALMOS-MKH.
7 *
8 * ALMOS-MKH is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2.0 of the License.
11 *
12 * ALMOS-MKH is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include <hal_types.h>
23#include <hal_irqmask.h>
24#include <hal_exception.h>
25#include <thread.h>
26#include <errno.h>
27#include <core.h>
28#include <do_exception.h>
29
30#include <hal_kentry.h>
31#include <hal_internal.h>
32#include <hal_segmentation.h>
33
34static const char *exc_type[] = {
35        [T_PRIVINFLT]= "privileged instruction fault",
36        [T_BPTFLT] = "breakpoint trap",
37        [T_ARITHTRAP] = "arithmetic trap",
38        [T_ASTFLT] = "asynchronous system trap",
39        [T_PROTFLT] = "protection fault",
40        [T_TRCTRAP] = "trace trap",
41        [T_PAGEFLT] = "page fault",
42        [T_ALIGNFLT] = "alignment fault",
43        [T_DIVIDE] = "integer divide fault",
44        [T_NMI] = "non-maskable interrupt",
45        [T_OFLOW] = "overflow trap",
46        [T_BOUND] = "bounds check fault",
47        [T_DNA] = "FPU not available fault",
48        [T_DOUBLEFLT] = "double fault",
49        [T_FPOPFLT] = "FPU operand fetch fault",
50        [T_TSSFLT] = "invalid TSS fault",
51        [T_SEGNPFLT] = "segment not present fault",
52        [T_STKFLT] = "stack fault",
53        [T_MCA] = "machine check fault",
54        [T_XMM] = "SSE FP exception",
55};
56int     exc_types = __arraycount(exc_type);
57
58/*
59 * Hexception handler.
60 */
61void hal_exception_entry(hal_trapframe_t *ctx)
62{
63        uint64_t excno = ctx->tf_trapno;
64        const char *buf;
65
66        if (excno < exc_types) {
67                buf = exc_type[excno];
68        } else {
69                buf = "unknown exception";
70        }
71
72        x86_lock();
73        x86_printf("\n****** EXCEPTION OCCURRED ******\n");
74        x86_printf("%s\n", (char *)buf);
75        x86_printf("-> rip = %Z\n", ctx->tf_rip);
76        x86_printf("-> rdi = %Z\n", ctx->tf_rdi);
77        x86_printf("-> rbp = %Z\n", ctx->tf_rbp);
78        x86_printf("-> tls = %Z (gid=%Z)\n", (uint64_t)curtls(),
79            (uint64_t)hal_get_gid());
80        x86_printf("-> err = %Z\n", ctx->tf_err);
81        if (excno == T_PAGEFLT)
82                x86_printf("-> va  = %Z\n", rcr2());
83        x86_printf("****** EXCEPTION OCCURRED ******\n\n");
84        x86_unlock();
85
86        while (1);
87}
88
89/* -------------------------------------------------------------------------- */
90
91void hal_do_exception( thread_t * this,
92                       reg_t    * regs_tbl )
93{
94        x86_panic((char *)__func__);
95}
96
97void hal_exception_dump( thread_t * this,
98                         reg_t    * regs_tbl )
99{
100        x86_panic((char *)__func__);
101}
102
Note: See TracBrowser for help on using the repository browser.