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https://github.com/brain-hackers/u-boot-brain
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49cad54788
this is an atempt to make the export of functions typesafe. I replaced the jumptable void ** by a struct (jt_funcs) with function pointers. The EXPORT_FUNC macro now has 3 fixed parameters and one variadic parameter The first is the name of the exported function, the rest of the parameters are used to format a functionpointer in the jumptable, the EXPORT_FUNC macros are expanded three times, 1. to declare the members of the struct 2. to initialize the structmember pointers 3. to call the functions in stubs.c Signed-off-by: Martin Dorwig <dorwig@tetronik.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> (resending to the list since my tweaks are not quite trivial)
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#ifndef __EXPORTS_H__
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#define __EXPORTS_H__
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#ifndef __ASSEMBLY__
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struct spi_slave;
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/* These are declarations of exported functions available in C code */
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unsigned long get_version(void);
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int getc(void);
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int tstc(void);
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void putc(const char);
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void puts(const char*);
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int printf(const char* fmt, ...);
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void install_hdlr(int, interrupt_handler_t, void*);
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void free_hdlr(int);
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void *malloc(size_t);
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void free(void*);
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void __udelay(unsigned long);
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unsigned long get_timer(unsigned long);
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int vprintf(const char *, va_list);
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unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base);
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int strict_strtoul(const char *cp, unsigned int base, unsigned long *res);
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char *getenv (const char *name);
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int setenv (const char *varname, const char *varvalue);
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long simple_strtol(const char *cp, char **endp, unsigned int base);
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int strcmp(const char *cs, const char *ct);
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unsigned long ustrtoul(const char *cp, char **endp, unsigned int base);
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unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base);
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#if defined(CONFIG_CMD_I2C) && \
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(!defined(CONFIG_DM_I2C) || defined(CONFIG_DM_I2C_COMPAT))
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int i2c_write (uchar, uint, int , uchar* , int);
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int i2c_read (uchar, uint, int , uchar* , int);
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#endif
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void app_startup(char * const *);
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#endif /* ifndef __ASSEMBLY__ */
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struct jt_funcs {
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#define EXPORT_FUNC(impl, res, func, ...) res(*func)(__VA_ARGS__);
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#include <_exports.h>
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#undef EXPORT_FUNC
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};
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#define XF_VERSION 7
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#if defined(CONFIG_X86)
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extern gd_t *global_data;
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#endif
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#endif /* __EXPORTS_H__ */
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