X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=common%2Fcommand.c;h=4719f4978ba637edb2ff4cc1b7ee67cb3462cfc7;hp=67ad692004edfe233b48893133b0932d5636d7df;hb=2db8c2d61a05bb4a94bb341329c6de811757c111;hpb=39f7aacf3fd285b42b92c2c2d66d95339a3569cc diff --git a/common/command.c b/common/command.c index 67ad692004..4719f4978b 100644 --- a/common/command.c +++ b/common/command.c @@ -2,23 +2,7 @@ * (C) Copyright 2000-2009 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ /* @@ -27,19 +11,20 @@ #include #include +#include /* * Use puts() instead of printf() to avoid printf buffer overflow * for long help messages */ -int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int - flag, int argc, char *argv[]) +int _do_help(cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) { int i; int rcode = 0; - if (argc == 1) { /*show list of commands */ + if (argc == 1) { /* show list of commands */ cmd_tbl_t *cmd_array[cmd_items]; int i, j, swaps; @@ -53,8 +38,8 @@ int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int for (i = cmd_items - 1; i > 0; --i) { swaps = 0; for (j = 0; j < i; ++j) { - if (strcmp (cmd_array[j]->name, - cmd_array[j + 1]->name) > 0) { + if (strcmp(cmd_array[j]->name, + cmd_array[j + 1]->name) > 0) { cmd_tbl_t *tmp; tmp = cmd_array[j]; cmd_array[j] = cmd_array[j + 1]; @@ -71,7 +56,7 @@ int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int const char *usage = cmd_array[i]->usage; /* allow user abort */ - if (ctrlc ()) + if (ctrlc()) return 1; if (usage == NULL) continue; @@ -84,41 +69,38 @@ int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int * command help (long version) */ for (i = 1; i < argc; ++i) { - if ((cmdtp = find_cmd_tbl (argv[i], cmd_start, cmd_items )) != NULL) { + cmdtp = find_cmd_tbl(argv[i], cmd_start, cmd_items); + if (cmdtp != NULL) { rcode |= cmd_usage(cmdtp); } else { - printf ("Unknown command '%s' - try 'help'" - " without arguments for list of all" - " known commands\n\n", argv[i] - ); + printf("Unknown command '%s' - try 'help' without arguments for list of all known commands\n\n", + argv[i]); rcode = 1; } } return rcode; } -/*************************************************************************** - * find command table entry for a command - */ -cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len) +/* find command table entry for a command */ +cmd_tbl_t *find_cmd_tbl(const char *cmd, cmd_tbl_t *table, int table_len) { cmd_tbl_t *cmdtp; - cmd_tbl_t *cmdtp_temp = table; /*Init value */ + cmd_tbl_t *cmdtp_temp = table; /* Init value */ const char *p; int len; int n_found = 0; + if (!cmd) + return NULL; /* * Some commands allow length modifiers (like "cp.b"); * compare command name only until first dot. */ len = ((p = strchr(cmd, '.')) == NULL) ? strlen (cmd) : (p - cmd); - for (cmdtp = table; - cmdtp != table + table_len; - cmdtp++) { - if (strncmp (cmd, cmdtp->name, len) == 0) { - if (len == strlen (cmdtp->name)) + for (cmdtp = table; cmdtp != table + table_len; cmdtp++) { + if (strncmp(cmd, cmdtp->name, len) == 0) { + if (len == strlen(cmdtp->name)) return cmdtp; /* full match */ cmdtp_temp = cmdtp; /* abbreviated command ? */ @@ -132,13 +114,14 @@ cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len) return NULL; /* not found or ambiguous command */ } -cmd_tbl_t *find_cmd (const char *cmd) +cmd_tbl_t *find_cmd(const char *cmd) { - int len = &__u_boot_cmd_end - &__u_boot_cmd_start; - return find_cmd_tbl(cmd, &__u_boot_cmd_start, len); + cmd_tbl_t *start = ll_entry_start(cmd_tbl_t, cmd); + const int len = ll_entry_count(cmd_tbl_t, cmd); + return find_cmd_tbl(cmd, start, len); } -int cmd_usage(cmd_tbl_t *cmdtp) +int cmd_usage(const cmd_tbl_t *cmdtp) { printf("%s - %s\n\n", cmdtp->name, cmdtp->usage); @@ -150,20 +133,20 @@ int cmd_usage(cmd_tbl_t *cmdtp) return 1; } - puts (cmdtp->help); - putc ('\n'); + puts(cmdtp->help); + putc('\n'); #endif /* CONFIG_SYS_LONGHELP */ - return 0; + return 1; } #ifdef CONFIG_AUTO_COMPLETE -int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[]) +int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]) { static char tmp_buf[512]; int space; - space = last_char == '\0' || last_char == ' ' || last_char == '\t'; + space = last_char == '\0' || isblank(last_char); if (space && argc == 1) return env_complete("", maxv, cmdv, sizeof(tmp_buf), tmp_buf); @@ -174,35 +157,13 @@ int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[]) return 0; } -static void install_auto_complete_handler(const char *cmd, - int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[])) -{ - cmd_tbl_t *cmdtp; - - cmdtp = find_cmd(cmd); - if (cmdtp == NULL) - return; - - cmdtp->complete = complete; -} - -void install_auto_complete(void) -{ -#if defined(CONFIG_CMD_EDITENV) - install_auto_complete_handler("editenv", var_complete); -#endif - install_auto_complete_handler("printenv", var_complete); - install_auto_complete_handler("setenv", var_complete); -#if defined(CONFIG_CMD_RUN) - install_auto_complete_handler("run", var_complete); -#endif -} - /*************************************************************************************/ -static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char *cmdv[]) +static int complete_cmdv(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]) { - cmd_tbl_t *cmdtp; + cmd_tbl_t *cmdtp = ll_entry_start(cmd_tbl_t, cmd); + const int count = ll_entry_count(cmd_tbl_t, cmd); + const cmd_tbl_t *cmdend = cmdtp + count; const char *p; int len, clen; int n_found = 0; @@ -216,7 +177,7 @@ static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char if (argc == 0) { /* output full list of commands */ - for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) { + for (; cmdtp != cmdend; cmdtp++) { if (n_found >= maxv - 2) { cmdv[n_found++] = "..."; break; @@ -228,7 +189,7 @@ static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char } /* more than one arg or one but the start of the next */ - if (argc > 1 || (last_char == '\0' || last_char == ' ' || last_char == '\t')) { + if (argc > 1 || last_char == '\0' || isblank(last_char)) { cmdtp = find_cmd(argv[0]); if (cmdtp == NULL || cmdtp->complete == NULL) { cmdv[0] = NULL; @@ -249,7 +210,7 @@ static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char len = p - cmd; /* return the partial matches */ - for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) { + for (; cmdtp != cmdend; cmdtp++) { clen = strlen(cmdtp->name); if (clen < len) @@ -279,7 +240,7 @@ static int make_argv(char *s, int argvsz, char *argv[]) while (argc < argvsz - 1) { /* skip any white space */ - while ((*s == ' ') || (*s == '\t')) + while (isblank(*s)) ++s; if (*s == '\0') /* end of s, no more args */ @@ -288,7 +249,7 @@ static int make_argv(char *s, int argvsz, char *argv[]) argv[argc++] = s; /* begin of argument string */ /* find end of string */ - while (*s && (*s != ' ') && (*s != '\t')) + while (*s && !isblank(*s)) ++s; if (*s == '\0') /* end of s, no more args */ @@ -301,7 +262,7 @@ static int make_argv(char *s, int argvsz, char *argv[]) return argc; } -static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char *argv[]) +static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char * const argv[]) { int ll = leader != NULL ? strlen(leader) : 0; int sl = sep != NULL ? strlen(sep) : 0; @@ -328,7 +289,7 @@ static void print_argv(const char *banner, const char *leader, const char *sep, printf("\n"); } -static int find_common_prefix(char *argv[]) +static int find_common_prefix(char * const argv[]) { int i, len; char *anchor, *s, *t; @@ -379,7 +340,8 @@ int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp) argc = make_argv(tmp_buf, sizeof(argv)/sizeof(argv[0]), argv); /* do the completion and return the possible completions */ - i = complete_cmdv(argc, argv, last_char, sizeof(cmdv)/sizeof(cmdv[0]), cmdv); + i = complete_cmdv(argc, argv, last_char, + sizeof(cmdv) / sizeof(cmdv[0]), cmdv); /* no match; bell and out */ if (i == 0) { @@ -399,7 +361,7 @@ int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp) len = strlen(s); sep = " "; seplen = 1; - } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */ + } else if (i > 1 && (j = find_common_prefix(cmdv)) != 0) { /* more */ k = strlen(argv[argc - 1]); j -= k; if (j > 0) { @@ -448,13 +410,17 @@ int cmd_get_data_size(char* arg, int default_size) */ int len = strlen(arg); if (len > 2 && arg[len-2] == '.') { - switch(arg[len-1]) { + switch (arg[len-1]) { case 'b': return 1; case 'w': return 2; case 'l': return 4; +#ifdef CONFIG_SYS_SUPPORT_64BIT_DATA + case 'q': + return 8; +#endif case 's': return -2; default: @@ -464,3 +430,121 @@ int cmd_get_data_size(char* arg, int default_size) return default_size; } #endif + +#if defined(CONFIG_NEEDS_MANUAL_RELOC) +DECLARE_GLOBAL_DATA_PTR; + +void fixup_cmdtable(cmd_tbl_t *cmdtp, int size) +{ + int i; + + if (gd->reloc_off == 0) + return; + + for (i = 0; i < size; i++) { + ulong addr; + + addr = (ulong)(cmdtp->cmd) + gd->reloc_off; +#if DEBUG_COMMANDS + printf("Command \"%s\": 0x%08lx => 0x%08lx\n", + cmdtp->name, (ulong)(cmdtp->cmd), addr); +#endif + cmdtp->cmd = + (int (*)(struct cmd_tbl_s *, int, int, char * const []))addr; + addr = (ulong)(cmdtp->name) + gd->reloc_off; + cmdtp->name = (char *)addr; + if (cmdtp->usage) { + addr = (ulong)(cmdtp->usage) + gd->reloc_off; + cmdtp->usage = (char *)addr; + } +#ifdef CONFIG_SYS_LONGHELP + if (cmdtp->help) { + addr = (ulong)(cmdtp->help) + gd->reloc_off; + cmdtp->help = (char *)addr; + } +#endif +#ifdef CONFIG_AUTO_COMPLETE + if (cmdtp->complete) { + addr = (ulong)(cmdtp->complete) + gd->reloc_off; + cmdtp->complete = + (int (*)(int, char * const [], char, int, char * []))addr; + } +#endif + cmdtp++; + } +} +#endif + +/** + * Call a command function. This should be the only route in U-Boot to call + * a command, so that we can track whether we are waiting for input or + * executing a command. + * + * @param cmdtp Pointer to the command to execute + * @param flag Some flags normally 0 (see CMD_FLAG_.. above) + * @param argc Number of arguments (arg 0 must be the command text) + * @param argv Arguments + * @return 0 if command succeeded, else non-zero (CMD_RET_...) + */ +static int cmd_call(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int result; + + result = (cmdtp->cmd)(cmdtp, flag, argc, argv); + if (result) + debug("Command failed, result=%d", result); + return result; +} + +enum command_ret_t cmd_process(int flag, int argc, char * const argv[], + int *repeatable, ulong *ticks) +{ + enum command_ret_t rc = CMD_RET_SUCCESS; + cmd_tbl_t *cmdtp; + + /* Look up command in command table */ + cmdtp = find_cmd(argv[0]); + if (cmdtp == NULL) { + printf("Unknown command '%s' - try 'help'\n", argv[0]); + return 1; + } + + /* found - check max args */ + if (argc > cmdtp->maxargs) + rc = CMD_RET_USAGE; + +#if defined(CONFIG_CMD_BOOTD) + /* avoid "bootd" recursion */ + else if (cmdtp->cmd == do_bootd) { + if (flag & CMD_FLAG_BOOTD) { + puts("'bootd' recursion detected\n"); + rc = CMD_RET_FAILURE; + } else { + flag |= CMD_FLAG_BOOTD; + } + } +#endif + + /* If OK so far, then do the command */ + if (!rc) { + if (ticks) + *ticks = get_timer(0); + rc = cmd_call(cmdtp, flag, argc, argv); + if (ticks) + *ticks = get_timer(*ticks); + *repeatable &= cmdtp->repeatable; + } + if (rc == CMD_RET_USAGE) + rc = cmd_usage(cmdtp); + return rc; +} + +int cmd_process_error(cmd_tbl_t *cmdtp, int err) +{ + if (err) { + printf("Command '%s' failed: Error %d\n", cmdtp->name, err); + return 1; + } + + return 0; +}