diff options
Diffstat (limited to 'lib/libc/include/sys')
| -rw-r--r-- | lib/libc/include/sys/auxv.h | 55 | ||||
| -rw-r--r-- | lib/libc/include/sys/syscall.h | 116 |
2 files changed, 171 insertions, 0 deletions
diff --git a/lib/libc/include/sys/auxv.h b/lib/libc/include/sys/auxv.h new file mode 100644 index 0000000..b06d01c --- /dev/null +++ b/lib/libc/include/sys/auxv.h @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SYS_AUXV_H +#define _SYS_AUXV_H + +#include <stdint.h> + +#define AT_NULL 0 +#define AT_ENTRY 1 +#define AT_PHDR 2 +#define AT_PHENT 3 +#define AT_PHNUM 4 +#define AT_EXECPATH 5 +#define AT_SECURE 6 +#define AT_RANDOM 7 +#define AT_EXECFN 8 + +#define AT_MAX_COUNT 9 + +struct auxv_entry { + uint64_t tag; + union { + uint64_t val; + void* ptr; + }; +}; + +#endif /* _SYS_AUXV_H */ diff --git a/lib/libc/include/sys/syscall.h b/lib/libc/include/sys/syscall.h new file mode 100644 index 0000000..34f762d --- /dev/null +++ b/lib/libc/include/sys/syscall.h @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SYS_SYSCALL_H +#define _SYS_SYSCALL_H + +#if !defined(__ASSEMBLER__) +#include <stdint.h> +#endif + +#define SYS_exit 1 + +#if !defined(__ASSEMBLER__) +__attribute__((__always_inline__)) +static inline long +syscall0(uint64_t code) +{ + volatile long ret; + asm volatile("int $0x80" : "=a"(ret) : "a"(code)); + return ret; +} + +__attribute__((__always_inline__)) +static inline long +syscall1(uint64_t code, uint64_t arg0) +{ + volatile long ret; + asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0) : "memory"); + return ret; +} + +__attribute__((__always_inline__)) +static long inline +syscall2(uint64_t code, uint64_t arg0, uint64_t arg1) +{ + volatile long ret; + asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1) : "memory"); + return ret; +} + +__attribute__((__always_inline__)) +static inline long +syscall3(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2) +{ + volatile long ret; + asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2) : "memory"); + return ret; +} + +__attribute__((__always_inline__)) +static inline long +syscall4(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3) +{ + volatile long ret; + register uint64_t _arg3 asm("r10") = arg3; + asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3) : "memory"); + return ret; +} + +__attribute__((__always_inline__)) +static inline long +syscall5(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4) +{ + volatile long ret; + register uint64_t _arg3 asm("r10") = arg3; + register uint64_t _arg4 asm("r9") = arg4; + asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3), "r"(_arg4) : "memory"); + return ret; +} + +__attribute__((__always_inline__)) +static inline long +syscall6(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5) { + volatile long ret; + register uint64_t _arg3 asm("r10") = arg3; + register uint64_t _arg4 asm("r9") = arg4; + register uint64_t _arg5 asm("r8") = arg5; + asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5) : "memory"); + return ret; +} + +#define _SYSCALL_N(a0, a1, a2, a3, a4, a5, a6, name, ...) \ + name + +#define syscall(...) \ +_SYSCALL_N(__VA_ARGS__, syscall6, syscall5, \ + syscall4, syscall3, syscall2, syscall1, \ + syscall0)(__VA_ARGS__) +#endif /* !defined(__ASSEMBLER__) */ +#endif /* !_SYS_SYSCALL_H */ |