248 lines
8.3 KiB
C
248 lines
8.3 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2010-03-22 Bernard first version
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*/
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#ifndef __FINSH_H__
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#define __FINSH_H__
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#include <rtdef.h>
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#ifdef _MSC_VER
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#pragma section("FSymTab$f",read)
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#endif /* _MSC_VER */
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#ifdef FINSH_USING_OPTION_COMPLETION
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#define FINSH_COND(opt) opt,
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#else
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#define FINSH_COND(opt)
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#endif
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#ifdef FINSH_USING_DESCRIPTION
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#define FINSH_DESC(cmd, desc) __fsym_##cmd##_desc,
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#else
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#define FINSH_DESC(cmd, desc)
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#endif
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typedef long (*syscall_func)(void);
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#ifdef FINSH_USING_SYMTAB
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#ifdef __TI_COMPILER_VERSION__
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#define __TI_FINSH_EXPORT_FUNCTION(f) PRAGMA(DATA_SECTION(f,"FSymTab"))
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#endif /* __TI_COMPILER_VERSION__ */
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/**
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* Macro to export a command along with its name, description, and options to the symbol table in MSVC.
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* @param name The function name associated with the command.
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* @param cmd The command name.
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* @param desc The description of the command.
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* @param opt The options associated with the command, used for option completion.
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*/
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#ifdef _MSC_VER
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#define MSH_FUNCTION_EXPORT_CMD(name, cmd, desc, opt) \
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const char __fsym_##cmd##_name[] = #cmd; \
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const char __fsym_##cmd##_desc[] = #desc; \
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__declspec(allocate("FSymTab$f")) \
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const struct finsh_syscall __fsym_##cmd = \
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{ \
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__fsym_##cmd##_name, \
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FINSH_DESC(cmd, desc) \
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FINSH_COND(opt) \
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(syscall_func)&name \
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};
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#pragma comment(linker, "/merge:FSymTab=mytext")
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#elif defined(__TI_COMPILER_VERSION__)
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#ifdef __TMS320C28XX__
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#define RT_NOBLOCKED __attribute__((noblocked))
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#else
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#define RT_NOBLOCKED
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#endif
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#define MSH_FUNCTION_EXPORT_CMD(name, cmd, desc, opt) \
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__TI_FINSH_EXPORT_FUNCTION(__fsym_##cmd); \
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const char __fsym_##cmd##_name[] = #cmd; \
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const char __fsym_##cmd##_desc[] = #desc; \
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rt_used RT_NOBLOCKED const struct finsh_syscall __fsym_##cmd = \
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{ \
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__fsym_##cmd##_name, \
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FINSH_DESC(cmd, desc) \
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FINSH_COND(opt) \
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(syscall_func)&name \
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};
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#else
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#define MSH_FUNCTION_EXPORT_CMD(name, cmd, desc, opt) \
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const char __fsym_##cmd##_name[] rt_section(".rodata.name") = #cmd; \
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const char __fsym_##cmd##_desc[] rt_section(".rodata.name") = #desc; \
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rt_used const struct finsh_syscall __fsym_##cmd rt_section("FSymTab")= \
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{ \
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__fsym_##cmd##_name, \
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FINSH_DESC(cmd, desc) \
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FINSH_COND(opt) \
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(syscall_func)&name \
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};
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#endif /* _MSC_VER */
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#endif /* FINSH_USING_SYMTAB */
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/**
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* Macro definitions to simplify the declaration of exported functions or commands.
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*/
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#define __MSH_GET_MACRO(_1, _2, _3, _FUN, ...) _FUN
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#define __MSH_GET_EXPORT_MACRO(_1, _2, _3, _4, _FUN, ...) _FUN
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#define _MSH_FUNCTION_CMD2(a0, a1) \
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MSH_FUNCTION_EXPORT_CMD(a0, a0, a1, 0)
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#define _MSH_FUNCTION_CMD2_OPT(a0, a1, a2) \
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MSH_FUNCTION_EXPORT_CMD(a0, a0, a1, a0##_msh_options)
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#define _MSH_FUNCTION_EXPORT_CMD3(a0, a1, a2) \
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MSH_FUNCTION_EXPORT_CMD(a0, a1, a2, 0)
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#define _MSH_FUNCTION_EXPORT_CMD3_OPT(a0, a1, a2, a3) \
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MSH_FUNCTION_EXPORT_CMD(a0, a1, a2, a0##_msh_options)
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/**
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* @ingroup finsh
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*
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* This macro exports a system function to finsh shell.
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*
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* @param name the name of function.
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* @param desc the description of function, which will show in help.
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*/
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#define FINSH_FUNCTION_EXPORT(name, desc)
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/**
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* @ingroup finsh
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*
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* This macro exports a system function with an alias name to finsh shell.
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*
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* @param name the name of function.
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* @param alias the alias name of function.
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* @param desc the description of function, which will show in help.
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*/
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#define FINSH_FUNCTION_EXPORT_ALIAS(name, alias, desc)
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/**
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* @ingroup msh
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*
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* This macro exports a command to module shell.
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*
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* @param command is the name of the command.
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* @param desc is the description of the command, which will show in help list.
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* @param opt This is an option, enter any content to enable option completion
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*/
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/* MSH_CMD_EXPORT(command, desc) or MSH_CMD_EXPORT(command, desc, opt) */
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#define MSH_CMD_EXPORT(...) \
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__MSH_GET_MACRO(__VA_ARGS__, _MSH_FUNCTION_CMD2_OPT, \
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_MSH_FUNCTION_CMD2)(__VA_ARGS__)
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/**
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* @ingroup msh
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*
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* This macro exports a command with alias to module shell.
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*
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* @param command is the name of the command.
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* @param alias is the alias of the command.
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* @param desc is the description of the command, which will show in help list.
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* @param opt This is an option, enter any content to enable option completion
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* @note
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* #define MSH_CMD_EXPORT_ALIAS(command, alias, desc) or
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* #define MSH_CMD_EXPORT_ALIAS(command, alias, desc, opt)
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*/
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#define MSH_CMD_EXPORT_ALIAS(...) \
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__MSH_GET_EXPORT_MACRO(__VA_ARGS__, _MSH_FUNCTION_EXPORT_CMD3_OPT, \
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_MSH_FUNCTION_EXPORT_CMD3)(__VA_ARGS__)
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/* system call table */
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struct finsh_syscall
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{
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const char *name; /* the name of system call */
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#if defined(FINSH_USING_DESCRIPTION) && defined(FINSH_USING_SYMTAB)
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const char *desc; /* description of system call */
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#endif
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#ifdef FINSH_USING_OPTION_COMPLETION
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struct msh_cmd_opt *opt;
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#endif
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syscall_func func; /* the function address of system call */
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};
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/* system call item */
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struct finsh_syscall_item
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{
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struct finsh_syscall_item *next; /* next item */
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struct finsh_syscall syscall; /* syscall */
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};
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#ifdef FINSH_USING_OPTION_COMPLETION
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typedef struct msh_cmd_opt
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{
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rt_uint32_t id;
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const char *name;
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const char *des;
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} msh_cmd_opt_t;
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/* Command options declaration and definition macros */
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/**
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* Declares a static array of command options for a specific command.
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* @param command The command associated with these options.
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*/
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#define CMD_OPTIONS_STATEMENT(command) static struct msh_cmd_opt command##_msh_options[];
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/**
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* Starts the definition of command options for a specific command.
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* @param command The command these options are associated with.
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*/
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#define CMD_OPTIONS_NODE_START(command) static struct msh_cmd_opt command##_msh_options[] = {
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/**
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* Defines a single command option.
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* @param _id Unique identifier for the option.
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* @param _name The name of the option.
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* @param _des Description of the option.
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*/
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#define CMD_OPTIONS_NODE(_id, _name, _des) {.id = _id, .name = #_name, .des = #_des},
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/**
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* Marks the end of command options definition.
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*/
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#define CMD_OPTIONS_NODE_END {0},};
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void msh_opt_list_dump(void *options);
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int msh_cmd_opt_id_get(int argc, char *argv[], void *options);
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#define MSH_OPT_ID_GET(fun) msh_cmd_opt_id_get(argc, argv, (void*) fun##_msh_options)
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#define MSH_OPT_DUMP(fun) msh_opt_list_dump((void*) fun##_msh_options)
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#else
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#define CMD_OPTIONS_STATEMENT(command)
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#define CMD_OPTIONS_NODE_START(command)
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#define CMD_OPTIONS_NODE(_id, _name, _des)
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#define CMD_OPTIONS_NODE_END
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#define MSH_OPT_ID_GET(fun) ((int)(-1UL))
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#define MSH_OPT_DUMP(fun) do{}while(0)
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#endif
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extern struct finsh_syscall_item *global_syscall_list;
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extern struct finsh_syscall *_syscall_table_begin, *_syscall_table_end;
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#if defined(_MSC_VER) || (defined(__GNUC__) && defined(__x86_64__))
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struct finsh_syscall *finsh_syscall_next(struct finsh_syscall *call);
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#define FINSH_NEXT_SYSCALL(index) index=finsh_syscall_next(index)
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#else
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#define FINSH_NEXT_SYSCALL(index) index++
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#endif
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#if !defined(RT_USING_POSIX_STDIO) && defined(RT_USING_DEVICE)
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void finsh_set_device(const char *device_name);
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#endif
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#endif
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