projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| cabcbb56 SG |
1 | /* |
| 2 | * Copyright (c) 2011 The Chromium OS Authors. | |
| 3 | * | |
| 1a459660 | 4 | * SPDX-License-Identifier: GPL-2.0+ |
| cabcbb56 SG |
5 | */ |
| 6 | ||
| 7 | #include <common.h> | |
| 8 | #include <command.h> | |
| 0eb25b61 | 9 | #include <mapmem.h> |
| cabcbb56 SG |
10 | #include <trace.h> |
| 11 | #include <asm/io.h> | |
| 12 | ||
| 13 | static int get_args(int argc, char * const argv[], char **buff, | |
| 14 | size_t *buff_ptr, size_t *buff_size) | |
| 15 | { | |
| 16 | if (argc < 2) | |
| 17 | return -1; | |
| 18 | if (argc < 4) { | |
| 19 | *buff_size = getenv_ulong("profsize", 16, 0); | |
| 20 | *buff = map_sysmem(getenv_ulong("profbase", 16, 0), | |
| 21 | *buff_size); | |
| 22 | *buff_ptr = getenv_ulong("profoffset", 16, 0); | |
| 23 | } else { | |
| 24 | *buff_size = simple_strtoul(argv[3], NULL, 16); | |
| 25 | *buff = map_sysmem(simple_strtoul(argv[2], NULL, 16), | |
| 26 | *buff_size); | |
| 27 | *buff_ptr = 0; | |
| 28 | }; | |
| 29 | return 0; | |
| 30 | } | |
| 31 | ||
| 32 | static int create_func_list(int argc, char * const argv[]) | |
| 33 | { | |
| 34 | size_t buff_size, avail, buff_ptr, used; | |
| 35 | unsigned int needed; | |
| 36 | char *buff; | |
| 37 | int err; | |
| 38 | ||
| 39 | if (get_args(argc, argv, &buff, &buff_ptr, &buff_size)) | |
| 40 | return -1; | |
| 41 | ||
| 42 | avail = buff_size - buff_ptr; | |
| 43 | err = trace_list_functions(buff + buff_ptr, avail, &needed); | |
| 44 | if (err) | |
| 45 | printf("Error: truncated (%#x bytes needed)\n", needed); | |
| 5eca9779 | 46 | used = min(avail, (size_t)needed); |
| cabcbb56 SG |
47 | printf("Function trace dumped to %08lx, size %#zx\n", |
| 48 | (ulong)map_to_sysmem(buff + buff_ptr), used); | |
| 49 | setenv_hex("profbase", map_to_sysmem(buff)); | |
| 50 | setenv_hex("profsize", buff_size); | |
| 51 | setenv_hex("profoffset", buff_ptr + used); | |
| 52 | ||
| 53 | return 0; | |
| 54 | } | |
| 55 | ||
| 56 | static int create_call_list(int argc, char * const argv[]) | |
| 57 | { | |
| 58 | size_t buff_size, avail, buff_ptr, used; | |
| 59 | unsigned int needed; | |
| 60 | char *buff; | |
| 61 | int err; | |
| 62 | ||
| 63 | if (get_args(argc, argv, &buff, &buff_ptr, &buff_size)) | |
| 64 | return -1; | |
| 65 | ||
| 66 | avail = buff_size - buff_ptr; | |
| 67 | err = trace_list_calls(buff + buff_ptr, avail, &needed); | |
| 68 | if (err) | |
| 69 | printf("Error: truncated (%#x bytes needed)\n", needed); | |
| 5eca9779 | 70 | used = min(avail, (size_t)needed); |
| cabcbb56 SG |
71 | printf("Call list dumped to %08lx, size %#zx\n", |
| 72 | (ulong)map_to_sysmem(buff + buff_ptr), used); | |
| 73 | ||
| 74 | setenv_hex("profbase", map_to_sysmem(buff)); | |
| 75 | setenv_hex("profsize", buff_size); | |
| 76 | setenv_hex("profoffset", buff_ptr + used); | |
| 77 | ||
| 78 | return 0; | |
| 79 | } | |
| 80 | ||
| 81 | int do_trace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
| 82 | { | |
| 83 | const char *cmd = argc < 2 ? NULL : argv[1]; | |
| 84 | ||
| 85 | if (!cmd) | |
| 86 | return cmd_usage(cmdtp); | |
| 87 | switch (*cmd) { | |
| 88 | case 'p': | |
| 89 | trace_set_enabled(0); | |
| 90 | break; | |
| 91 | case 'c': | |
| 92 | if (create_call_list(argc, argv)) | |
| 93 | return cmd_usage(cmdtp); | |
| 94 | break; | |
| 95 | case 'r': | |
| 96 | trace_set_enabled(1); | |
| 97 | break; | |
| 98 | case 'f': | |
| 99 | if (create_func_list(argc, argv)) | |
| 100 | return cmd_usage(cmdtp); | |
| 101 | break; | |
| 102 | case 's': | |
| 103 | trace_print_stats(); | |
| 104 | break; | |
| 105 | default: | |
| 106 | return CMD_RET_USAGE; | |
| 107 | } | |
| 108 | ||
| 109 | return 0; | |
| 110 | } | |
| 111 | ||
| 112 | U_BOOT_CMD( | |
| 113 | trace, 4, 1, do_trace, | |
| 114 | "trace utility commands", | |
| 115 | "stats - display tracing statistics\n" | |
| 116 | "trace pause - pause tracing\n" | |
| 117 | "trace resume - resume tracing\n" | |
| 118 | "trace funclist [<addr> <size>] - dump function list into buffer\n" | |
| 119 | "trace calls [<addr> <size>] " | |
| 120 | "- dump function call trace into buffer" | |
| 121 | ); |