danielandClaude Fable 5
f234c67a2b
Cross-build GCC 14.2.0 with --host=x86_64-montauk: the driver, cc1, cc1plus and collect2 now link as static Montauk ET_EXEC binaries against the hosted libstdc++, and ship in the SDK. Together with the native binutils, TCC and the target sysroot, MontaukOS carries a complete self-contained C and C++ toolchain at 0:/sdk. libc: anonymous mmap/munmap over SYS_ALLOC (GCC's page allocator wants mmap; SYS_ALLOC memory is page-aligned by construction), getpagesize, minimal sysconf, MB_CUR_MAX, isascii/toascii, POSIX id typedefs (ino_t, dev_t, nlink_t, ...), struct stat fields switched to proper POSIX types (st_size is a signed off_t now), and a conventional _STDIO_H guard marker so GMP's FILE detection works. Build recipe and the five host-build gotchas (bundled config.subs, gettext removal, stdio guard sniffing, endianness cache preset, sysroot sdk symlink) are documented in toolchain/README.md. The devkit stages the driver as gcc.elf/g++.elf/cpp.elf, the backends in the libexec layout the driver expects, a copy of ld where collect2 searches, and a 0:/tmp scratch dir. Ramdisk: 1604 files, 368 MB. Co-Authored-By: Claude Fable 5 <[email protected]>
42 lines
877 B
C
42 lines
877 B
C
#ifndef _LIBC_SYS_MMAN_H
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#define _LIBC_SYS_MMAN_H
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#pragma once
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Anonymous-memory mmap over SYS_ALLOC. SYS_ALLOC returns
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* page-aligned process memory, which is exactly what callers like
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* GCC's page allocator need. File-backed mappings are not
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* supported and fail with ENODEV.
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*/
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#define PROT_NONE 0
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#define PROT_READ 1
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#define PROT_WRITE 2
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#define PROT_EXEC 4
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#define MAP_SHARED 0x01
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#define MAP_PRIVATE 0x02
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#define MAP_FIXED 0x10
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#define MAP_ANONYMOUS 0x20
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#define MAP_ANON MAP_ANONYMOUS
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#define MAP_FAILED ((void *)-1)
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void *mmap(void *addr, size_t length, int prot, int flags, int fd,
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long offset);
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int munmap(void *addr, size_t length);
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int mprotect(void *addr, size_t length, int prot);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBC_SYS_MMAN_H */
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