blob: e62f8068c573db269b2f997767759c14aef45d64 [file] [log] [blame]
/*
* Copyright (c) 2008 Travis Geiselbrecht
*
* Copyright (c) 2014, The Linux Foundation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <ctype.h>
#include <debug.h>
#include <stdlib.h>
#include <printf.h>
#include <list.h>
#include <string.h>
#include <arch/ops.h>
#include <platform.h>
#include <platform/debug.h>
#include <kernel/thread.h>
#include <kernel/timer.h>
#include <rand.h>
#if ARCH_ARM
#include <arch/arm.h>
#endif
void __attribute__ ((noreturn))
__stack_chk_fail (void)
{
panic("stack smashing detected.");
for(;;);
}
void spin(uint32_t usecs)
{
bigtime_t start = current_time_hires();
while ((current_time_hires() - start) < usecs)
;
}
void halt(void)
{
enter_critical_section(); // disable ints
platform_halt();
}
void dump_frame(void *frame)
{
enter_critical_section(); // disable ints
#if ARCH_ARM
dump_fault_frame((struct arm_fault_frame *)frame);
#endif
exit_critical_section(); // disable ints
}
void _panic(void *caller, const char *fmt, ...)
{
dprintf(ALWAYS, "panic (frame %p): \n", __GET_FRAME());
dump_frame(__GET_FRAME());
dprintf(ALWAYS, "panic (caller %p): ", caller);
va_list ap;
va_start(ap, fmt);
_dvprintf(fmt, ap);
va_end(ap);
halt();
}
int _dputs(const char *str)
{
while(*str != 0) {
_dputc(*str++);
}
return 0;
}
int _dprintf(const char *fmt, ...)
{
char buf[256];
char ts_buf[13];
int err;
snprintf(ts_buf, sizeof(ts_buf), "[%u] ",(unsigned int)current_time());
dputs(ALWAYS, ts_buf);
va_list ap;
va_start(ap, fmt);
err = vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
dputs(ALWAYS, buf);
return err;
}
int _dvprintf(const char *fmt, va_list ap)
{
char buf[256];
int err;
err = vsnprintf(buf, sizeof(buf), fmt, ap);
dputs(ALWAYS, buf);
return err;
}
void hexdump(const void *ptr, size_t len)
{
addr_t address = (addr_t)ptr;
size_t count;
int i;
for (count = 0 ; count < len; count += 16) {
printf("0x%08lx: ", address);
printf("%08x %08x %08x %08x |", *(const uint32_t *)address, *(const uint32_t *)(address + 4), *(const uint32_t *)(address + 8), *(const uint32_t *)(address + 12));
for (i=0; i < 16; i++) {
char c = *(const char *)(address + i);
if (isalpha(c)) {
printf("%c", c);
} else {
printf(".");
}
}
printf("|\n");
address += 16;
}
}
void hexdump8(const void *ptr, size_t len)
{
addr_t address = (addr_t)ptr;
size_t count;
int i;
for (count = 0 ; count < len; count += 16) {
printf("0x%08lx: ", address);
for (i=0; i < 16; i++) {
printf("0x%02hhx ", *(const uint8_t *)(address + i));
}
printf("\n");
address += 16;
}
}
#ifdef WITH_LIB_CONSOLE
#include <lib/console.h>
static int cmd_display_mem(int argc, const cmd_args *argv);
static int cmd_modify_mem(int argc, const cmd_args *argv);
static int cmd_fill_mem(int argc, const cmd_args *argv);
static int cmd_reset(int argc, const cmd_args *argv);
static int cmd_memtest(int argc, const cmd_args *argv);
static int cmd_copy_mem(int argc, const cmd_args *argv);
STATIC_COMMAND_START
#if DEBUGLEVEL > 0
{ "dw", "display memory in words", &cmd_display_mem },
{ "dh", "display memory in halfwords", &cmd_display_mem },
{ "db", "display memory in bytes", &cmd_display_mem },
{ "mw", "modify word of memory", &cmd_modify_mem },
{ "mh", "modify halfword of memory", &cmd_modify_mem },
{ "mb", "modify byte of memory", &cmd_modify_mem },
{ "fw", "fill range of memory by word", &cmd_fill_mem },
{ "fh", "fill range of memory by halfword", &cmd_fill_mem },
{ "fb", "fill range of memory by byte", &cmd_fill_mem },
{ "mc", "copy a range of memory", &cmd_copy_mem },
#endif
#if DEBUGLEVEL > 1
{ "mtest", "simple memory test", &cmd_memtest },
#endif
STATIC_COMMAND_END(mem);
static int cmd_display_mem(int argc, const cmd_args *argv)
{
int size;
if (argc < 3) {
printf("not enough arguments\n");
printf("%s <address> <length>\n", argv[0].str);
return -1;
}
if (strcmp(argv[0].str, "dw") == 0) {
size = 4;
} else if (strcmp(argv[0].str, "dh") == 0) {
size = 2;
} else {
size = 1;
}
unsigned long address = argv[1].u;
size_t len = argv[2].u;
unsigned long stop = address + len;
int count = 0;
if ((address & (size - 1)) != 0) {
printf("unaligned address, cannot display\n");
return -1;
}
for ( ; address < stop; address += size) {
if (count == 0)
printf("0x%08lx: ", address);
switch (size) {
case 4:
printf("%08x ", *(uint32_t *)address);
break;
case 2:
printf("%04hx ", *(uint16_t *)address);
break;
case 1:
printf("%02hhx ", *(uint8_t *)address);
break;
}
count += size;
if (count == 16) {
printf("\n");
count = 0;
}
}
if (count != 0)
printf("\n");
return 0;
}
static int cmd_modify_mem(int argc, const cmd_args *argv)
{
int size;
if (argc < 3) {
printf("not enough arguments\n");
printf("%s <address> <val>\n", argv[0].str);
return -1;
}
if (strcmp(argv[0].str, "mw") == 0) {
size = 4;
} else if (strcmp(argv[0].str, "mh") == 0) {
size = 2;
} else {
size = 1;
}
unsigned long address = argv[1].u;
unsigned int val = argv[2].u;
if ((address & (size - 1)) != 0) {
printf("unaligned address, cannot modify\n");
return -1;
}
switch (size) {
case 4:
*(uint32_t *)address = (uint32_t)val;
break;
case 2:
*(uint16_t *)address = (uint16_t)val;
break;
case 1:
*(uint8_t *)address = (uint8_t)val;
break;
}
return 0;
}
static int cmd_fill_mem(int argc, const cmd_args *argv)
{
int size;
if (argc < 4) {
printf("not enough arguments\n");
printf("%s <address> <len> <val>\n", argv[0].str);
return -1;
}
if (strcmp(argv[0].str, "fw") == 0) {
size = 4;
} else if (strcmp(argv[0].str, "fh") == 0) {
size = 2;
} else {
size = 1;
}
unsigned long address = argv[1].u;
unsigned long len = argv[2].u;
unsigned long stop = address + len;
unsigned int val = argv[3].u;
if ((address & (size - 1)) != 0) {
printf("unaligned address, cannot modify\n");
return -1;
}
for ( ; address < stop; address += size) {
switch (size) {
case 4:
*(uint32_t *)address = (uint32_t)val;
break;
case 2:
*(uint16_t *)address = (uint16_t)val;
break;
case 1:
*(uint8_t *)address = (uint8_t)val;
break;
}
}
return 0;
}
static int cmd_copy_mem(int argc, const cmd_args *argv)
{
if (argc < 4) {
printf("not enough arguments\n");
printf("%s <source address> <target address> <len>\n", argv[0].str);
return -1;
}
addr_t source = argv[1].u;
addr_t target = argv[2].u;
size_t len = argv[3].u;
memcpy((void *)target, (const void *)source, len);
return 0;
}
static int cmd_memtest(int argc, const cmd_args *argv)
{
if (argc < 3) {
printf("not enough arguments\n");
printf("%s <base> <len>\n", argv[0].str);
return -1;
}
uint32_t *ptr;
size_t len;
ptr = (uint32_t *)argv[1].u;
len = (size_t)argv[2].u;
size_t i;
// write out
printf("writing first pass...");
for (i = 0; i < len / 4; i++) {
ptr[i] = i;
}
printf("done\n");
// verify
printf("verifying...");
for (i = 0; i < len / 4; i++) {
if (ptr[i] != i)
printf("error at %p\n", &ptr[i]);
}
printf("done\n");
return 0;
}
#endif