Bananymous
2f9b8b6fc9
Kernel syscall API no longer zeros all unused argument registers and libc now uses inlined syscall macro internally. This significantly cleans up generated code for basic syscall wrapper functions.
56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
#pragma once
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#include <BAN/Traits.h>
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#include <unistd.h> // make sure syscall function is declared before defining it
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#include <errno.h>
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#include <kernel/API/Syscall.h>
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#define syscall(...) ({ \
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long _ret = -ERESTART; \
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while (_ret == -ERESTART) \
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_ret = _kas_syscall(__VA_ARGS__); \
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_ret; \
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})
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template<typename T>
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inline constexpr T min(T a, T b)
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{
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return a < b ? a : b;
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}
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template<typename T>
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inline constexpr T max(T a, T b)
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{
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return a > b ? a : b;
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}
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void print(int fd, const char* buffer);
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[[noreturn]] void print_error_and_exit(const char* message, int error);
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template<BAN::unsigned_integral T>
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inline void print_uint(int fd, T val, uint8_t base = 10)
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{
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constexpr auto get_base_char = [](T val) { return ((val < 10) ? '0' : 'A' - 10) + val; };
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char buffer[32];
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char* ptr = buffer + sizeof(buffer);
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*--ptr = '\0';
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do { *--ptr = get_base_char(val % base); val /= base; } while (val);
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print(fd, ptr);
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}
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size_t strlen(const char* s);
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int strcmp(const char* s1, const char* s2);
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char* strcpy(char* __restrict s1, const char* __restrict s2);
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void* memcpy(void* __restrict s1, const void* __restrict s2, size_t n);
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void* memset(void* s, int c, size_t n);
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void init_random();
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void fini_random();
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uintptr_t get_random_uptr();
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