forked from KolibriOS/kolibrios
192 lines
3.9 KiB
C
192 lines
3.9 KiB
C
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#define OS_BASE 0xE0000000
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#define IMAGE_BASE 0xE0100000
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#define LOAD_BASE 0x00100000
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#define page_tabs 0xDDC00000
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#define master_tab (page_tabs+(page_tabs>>10))
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#define sel_tss 0x08
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#define sel_os_stack 0x10
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#define sel_os_code 0x18
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#define sel_app_code 0x23
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#define sel_app_data 0x2B
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#define sel_srv_code 0x31
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#define sel_srv_stack 0x39
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void printf (const char *format, ...);
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#define CALLER ((addr_t) __builtin_return_address(0))
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extern void panic_printf(char *fmt, ...) __attribute__((noreturn));
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#ifdef CONFIG_DEBUG
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# define panic(format, ...) \
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panic_printf("Kernel panic in %s() at %s:%u: " format, __func__, \
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__FILE__, __LINE__, ##__VA_ARGS__);
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# define ASSERT(expr) \
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if (!(expr)) { \
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panic("assertion failed (%s), caller=%p\n", #expr, CALLER); \
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}
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#define DBG(format,...) printf(format,##__VA_ARGS__)
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#else
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# define panic(format, ...) \
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panic_printf("Kernel panic: " format, ##__VA_ARGS__);
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# define ASSERT(expr)
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# define DBG(format,...)
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# define PANIC(expr) \
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if (!(expr)) { \
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panic_printf("Kernel panic in %s() at %s:%u: " \
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"assertion failed (%s)",__func__ ,__FILE__,__LINE__, \
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#expr); \
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};
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#endif
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static inline eflags_t safe_cli(void)
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{
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eflags_t tmp;
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asm volatile (
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"pushfl\n\t"
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"popl %0\n\t"
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"cli\n"
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: "=r" (tmp));
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return tmp;
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}
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static inline void safe_sti(eflags_t efl)
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{
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asm volatile (
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"pushl %0\n\t"
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"popfl\n"
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: : "r" (efl)
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);
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}
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static inline count_t fnzb(u32_t arg)
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{
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count_t n;
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asm volatile (
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"xorl %0, %0 \n\t"
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"bsr %1, %0"
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:"=&r"(n) :"r"(arg) );
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return n;
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}
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static inline count_t _bsf(u32_t arg)
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{
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count_t n;
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asm volatile (
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"xorl %0, %0 \n\t"
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"bsf %1, %0"
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:"=&r" (n) :"r"(arg));
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return n;
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}
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static inline void _bts(u32_t *data, count_t val)
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{
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asm volatile (
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"bts %0, %1 \n\t"
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::"g"(data), "r"(val):"cc");
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}
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extern inline void _btr(u32_t *data, count_t val)
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{
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asm volatile (
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"btr %0, %1 \n\t"
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::"g"(data), "r"(val):"cc");
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}
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extern inline void* load_file(const char *path, size_t *size)
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{
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void* retval;
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size_t tmp;
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__asm__ __volatile__ (
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"pushl %%eax \n\t"
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"call _load_file@4 \n\t"
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:"=eax" (retval), "=ebx"(tmp)
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:"a" (path) );
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if(size)
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*size = tmp;
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return retval;
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};
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/* reemain part
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saved_box BOX
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ipc_start dd ?
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ipc_size dd ?
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event_mask dd ?
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debugger_slot dd ?
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dd ?
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keyboard_mode db ?
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db 3 dup(?)
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dir_table dd ?
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dbg_event_mem dd ?
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dbg_regs:
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dbg_regs.dr0 dd ?
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dbg_regs.dr1 dd ?
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dbg_regs.dr2 dd ?
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dbg_regs.dr3 dd ?
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dbg_regs.dr7 dd ?
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wnd_caption dd ?
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wnd_clientbox BOX
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*/
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//extern __fastcall void* load_file(const char *path, size_t *size);
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typedef struct
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{
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u32_t edi;
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u32_t esi;
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u32_t ebp;
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u32_t tmp; // esp
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u32_t ebx;
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u32_t edx;
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u32_t ecx;
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u32_t eax;
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addr_t retaddr;
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addr_t eip;
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u32_t cs;
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u32_t eflags;
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addr_t esp;
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u32_t ss; // 14*4
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u32_t tid; // thread id
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u32_t slot; // thread slot
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addr_t pdir; //
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u32_t thr_flags; // process is runnable only if zero
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int ticks_left; // number of scheduling ticks left */
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int quantum_size; // quantum size in ticks */
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u32_t user_time; // user time in ticks
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u32_t sys_time; // sys time in ticks
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}thr_t;
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#define EFL_IF 0x0200
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#define EFL_IOPL1 0x1000
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#define EFL_IOPL2 0x2000
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#define EFL_IOPL3 0x3000
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