43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
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#include <stdio.h>
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#include <stdint.h>
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extern int main(void);
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extern void UserTaskQuit(void);
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extern uintptr_t _ustext;
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extern uintptr_t _uetext;
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extern uintptr_t _ueronly;
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extern uintptr_t _usdata;
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extern uintptr_t _uedata;
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extern uintptr_t _usbss;
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extern uintptr_t _uebss;
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typedef int (*main_t)(int argc, char *argv[]);
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typedef void (*exit_t)(void);
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struct userspace_s
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{
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main_t us_entrypoint;
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exit_t us_taskquit;
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uintptr_t us_textstart;
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uintptr_t us_textend;
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uintptr_t us_datasource;
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uintptr_t us_datastart;
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uintptr_t us_dataend;
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uintptr_t us_bssstart;
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uintptr_t us_bssend;
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uintptr_t us_heapend;
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};
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const struct userspace_s userspace __attribute__ ((section (".userspace"))) =
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{
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/* General memory map */
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.us_entrypoint = (main_t)main,
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.us_taskquit = (exit_t)UserTaskQuit,
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.us_textstart = (uintptr_t)&_ustext,
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.us_textend = (uintptr_t)&_uetext,
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.us_datasource = (uintptr_t)&_ueronly,
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.us_datastart = (uintptr_t)&_usdata,
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.us_dataend = (uintptr_t)&_uedata,
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.us_bssstart = (uintptr_t)&_usbss,
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.us_bssend = (uintptr_t)&_uebss,
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};
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