| /* |
| * 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 |
| |