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https://github.com/brain-hackers/u-boot-brain
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5d1d00fb36
Because the cmd_tbl_s structure depends on the configuration file, it must be assured that config.h is included before the structure is evaluated by the compiler. If this is not certain, it could happen that the compiler generates structures of different size, depending on the fact if the source file includes <config.h> before or after <command.h>. The effect is that u-boot crashes when tries to relocate the command table (for ppc) or try to access to the command table for other architectures. The problem can happen on board-depending commands. All general commands under /common are unaffected, because they include already config.h before command.h. Signed-off-by: Stefano Babic <sbabic@denx.de>
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Definitions for Command Processor
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*/
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#ifndef __COMMAND_H
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#define __COMMAND_H
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#include <config.h>
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#ifndef NULL
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#define NULL 0
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#endif
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#ifndef __ASSEMBLY__
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/*
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* Monitor Command Table
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*/
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struct cmd_tbl_s {
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char *name; /* Command Name */
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int maxargs; /* maximum number of arguments */
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int repeatable; /* autorepeat allowed? */
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/* Implementation function */
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int (*cmd)(struct cmd_tbl_s *, int, int, char *[]);
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char *usage; /* Usage message (short) */
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#ifdef CFG_LONGHELP
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char *help; /* Help message (long) */
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#endif
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#ifdef CONFIG_AUTO_COMPLETE
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/* do auto completion on the arguments */
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int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]);
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#endif
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};
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typedef struct cmd_tbl_s cmd_tbl_t;
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extern cmd_tbl_t __u_boot_cmd_start;
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extern cmd_tbl_t __u_boot_cmd_end;
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/* common/command.c */
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cmd_tbl_t *find_cmd(const char *cmd);
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#ifdef CONFIG_AUTO_COMPLETE
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extern void install_auto_complete(void);
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extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
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#endif
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/*
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* Monitor Command
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*
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* All commands use a common argument format:
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*
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* void function (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
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*/
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typedef void command_t (cmd_tbl_t *, int, int, char *[]);
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#endif /* __ASSEMBLY__ */
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/*
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* Command Flags:
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*/
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#define CMD_FLAG_REPEAT 0x0001 /* repeat last command */
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#define CMD_FLAG_BOOTD 0x0002 /* command is from bootd */
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#define Struct_Section __attribute__ ((unused,section (".u_boot_cmd")))
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#ifdef CFG_LONGHELP
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#define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
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cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage, help}
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#else /* no long help info */
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#define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
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cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd, usage}
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#endif /* CFG_LONGHELP */
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#endif /* __COMMAND_H */
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