diff options
Diffstat (limited to 'src/lib/libkogata/syscall.c')
| -rw-r--r-- | src/lib/libkogata/syscall.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/src/lib/libkogata/syscall.c b/src/lib/libkogata/syscall.c index b9cefa7..8d24628 100644 --- a/src/lib/libkogata/syscall.c +++ b/src/lib/libkogata/syscall.c @@ -2,17 +2,47 @@ #include <syscall.h> #include <string.h> +#include <printf.h> + +static uint32_t call(uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t ss, uint32_t dd) { + uint32_t ret; + asm volatile("int $0x40" + :"=a"(ret) + :"a"(a),"b"(b),"c"(c),"d"(d),"S"(ss),"D"(dd)); + return ret; +} void dbg_print(const char* str) { - asm volatile("int $0x40"::"a"(SC_DBG_PRINT),"b"(str),"c"(strlen(str))); + call(SC_DBG_PRINT, (uint32_t)str, strlen(str), 0, 0, 0); +} + +void dbg_printf(const char* fmt, ...) { + va_list ap; + char buffer[256]; + + va_start(ap, fmt); + vsnprintf(buffer, 256, fmt, ap); + va_end(ap); + + dbg_print(buffer); } void yield() { - asm volatile("int $0x40"::"a"(SC_YIELD)); + call(SC_YIELD, 0, 0, 0, 0, 0); } void exit(int code) { - asm volatile("int $0x40"::"a"(SC_EXIT),"b"(code)); + call(SC_EXIT, code, 0, 0, 0, 0); +} + +bool mmap(void* addr, size_t size, int mode) { + return call(SC_MMAP, (uint32_t)addr, size, mode, 0, 0); +} +bool mchmap(void* addr, int mode) { + return call(SC_MCHMAP, (uint32_t)addr, mode, 0, 0, 0); +} +bool munmap(void* addr) { + return call(SC_MUNMAP, (uint32_t)addr, 0, 0, 0, 0); } /* vim: set ts=4 sw=4 tw=0 noet :*/ |