From 72a8cf8dccf6f8b86d1683205e032a94eaa86938 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 17 Jan 2016 20:53:51 -0700 Subject: Move all command code into its own directory There are a lot of unrelated files in common, including all of the commands. Moving them into their own directory makes them easier to find and is more logical. Some commands include non-command code, such as cmd_scsi.c. This should be sorted out at some point so that the function can be enabled with or without the associated command. Unfortunately, with m68k I get this error: m68k: + M5329AFEE +arch/m68k/cpu/mcf532x/start.o: In function `_start': +arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o I hope someone can shed some light on what this means. I hope it isn't depending on the position of code in the image. Signed-off-by: Simon Glass Reviewed-by: Bin Meng Reviewed-by: Heiko Schocher Acked-by: Stefan Roese Acked-by: Przemyslaw Marczak --- cmd/cmd_trace.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) create mode 100644 cmd/cmd_trace.c (limited to 'cmd/cmd_trace.c') diff --git a/cmd/cmd_trace.c b/cmd/cmd_trace.c new file mode 100644 index 00000000000..1e62a1a1999 --- /dev/null +++ b/cmd/cmd_trace.c @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include + +static int get_args(int argc, char * const argv[], char **buff, + size_t *buff_ptr, size_t *buff_size) +{ + if (argc < 2) + return -1; + if (argc < 4) { + *buff_size = getenv_ulong("profsize", 16, 0); + *buff = map_sysmem(getenv_ulong("profbase", 16, 0), + *buff_size); + *buff_ptr = getenv_ulong("profoffset", 16, 0); + } else { + *buff_size = simple_strtoul(argv[3], NULL, 16); + *buff = map_sysmem(simple_strtoul(argv[2], NULL, 16), + *buff_size); + *buff_ptr = 0; + }; + return 0; +} + +static int create_func_list(int argc, char * const argv[]) +{ + size_t buff_size, avail, buff_ptr, used; + unsigned int needed; + char *buff; + int err; + + if (get_args(argc, argv, &buff, &buff_ptr, &buff_size)) + return -1; + + avail = buff_size - buff_ptr; + err = trace_list_functions(buff + buff_ptr, avail, &needed); + if (err) + printf("Error: truncated (%#x bytes needed)\n", needed); + used = min(avail, needed); + printf("Function trace dumped to %08lx, size %#zx\n", + (ulong)map_to_sysmem(buff + buff_ptr), used); + setenv_hex("profbase", map_to_sysmem(buff)); + setenv_hex("profsize", buff_size); + setenv_hex("profoffset", buff_ptr + used); + + return 0; +} + +static int create_call_list(int argc, char * const argv[]) +{ + size_t buff_size, avail, buff_ptr, used; + unsigned int needed; + char *buff; + int err; + + if (get_args(argc, argv, &buff, &buff_ptr, &buff_size)) + return -1; + + avail = buff_size - buff_ptr; + err = trace_list_calls(buff + buff_ptr, avail, &needed); + if (err) + printf("Error: truncated (%#x bytes needed)\n", needed); + used = min(avail, needed); + printf("Call list dumped to %08lx, size %#zx\n", + (ulong)map_to_sysmem(buff + buff_ptr), used); + + setenv_hex("profbase", map_to_sysmem(buff)); + setenv_hex("profsize", buff_size); + setenv_hex("profoffset", buff_ptr + used); + + return 0; +} + +int do_trace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + const char *cmd = argc < 2 ? NULL : argv[1]; + + if (!cmd) + return cmd_usage(cmdtp); + switch (*cmd) { + case 'p': + trace_set_enabled(0); + break; + case 'c': + if (create_call_list(argc, argv)) + return cmd_usage(cmdtp); + break; + case 'r': + trace_set_enabled(1); + break; + case 'f': + if (create_func_list(argc, argv)) + return cmd_usage(cmdtp); + break; + case 's': + trace_print_stats(); + break; + default: + return CMD_RET_USAGE; + } + + return 0; +} + +U_BOOT_CMD( + trace, 4, 1, do_trace, + "trace utility commands", + "stats - display tracing statistics\n" + "trace pause - pause tracing\n" + "trace resume - resume tracing\n" + "trace funclist [ ] - dump function list into buffer\n" + "trace calls [ ] " + "- dump function call trace into buffer" +); -- cgit v1.2.3