diff options
| -rw-r--r-- | cmd/Kconfig | 11 | ||||
| -rw-r--r-- | common/command.c | 14 |
2 files changed, 25 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index 2bdbfcb..f6e7cd4 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -53,6 +53,17 @@ config SYS_PROMPT This string is displayed in the command line to the left of the cursor. +config SYS_XTRACE + string "Command execution tracer" + depends on CMDLINE + default y if CMDLINE + help + This option enables the possiblity to print all commands before + executing them and after all variables are evaluated (similar + to Bash's xtrace/'set -x' feature). + To enable the tracer a variable "xtrace" needs to be defined in + the environment. + menu "Autoboot options" config AUTOBOOT diff --git a/common/command.c b/common/command.c index e14d1fa..e192bb2 100644 --- a/common/command.c +++ b/common/command.c @@ -574,6 +574,20 @@ enum command_ret_t cmd_process(int flag, int argc, char * const argv[], enum command_ret_t rc = CMD_RET_SUCCESS; cmd_tbl_t *cmdtp; +#if defined(CONFIG_SYS_XTRACE) + char *xtrace; + + xtrace = env_get("xtrace"); + if (xtrace) { + puts("+"); + for (int i = 0; i < argc; i++) { + puts(" "); + puts(argv[i]); + } + puts("\n"); + } +#endif + /* Look up command in command table */ cmdtp = find_cmd(argv[0]); if (cmdtp == NULL) { |