Files
MontaukOS/programs/include/libc/errno.h
T
danielandClaude Fable 5 03d1a1bc2f feat: hosted libstdc++ for x86_64-montauk - full C++ on MontaukOS
The cross toolchain now builds real hosted C++: std::string, vector,
unique_ptr, iostreams and exceptions all work in a plain
x86_64-montauk-g++ invocation with no special flags. This is the
library that native cc1plus will link against for the GCC self-host.

crt1 now runs .preinit_array/.init_array before main and hooks
.fini_array through atexit (main returns via exit(), so destructors
run on both exit paths). Global constructors and libgcc's eh_frame
registration both ride this. GCC is reconfigured with
--enable-initfini-array (modern arrays instead of .ctors),
--with-newlib (satisfies libstdc++'s crossconfig for unknown hosts),
--disable-wchar_t and --disable-libstdcxx-pch; the montauk gcc patch
grows a hunk keeping os/generic ctype under --with-newlib (the
Montauk libc is not newlib).

libc additions harvested by the libstdc++ build: mbtowc/wctomb,
strxfrm, strtok/strtok_r, a real vfscanf/fscanf/scanf (character-
driven with widths and l/ll; also unblocks gprof later), fgetpos/
fsetpos/setbuf/fpos_t, modf plus the C99 float math variants
(acosf..tanhf, hypot/hypotf as wrappers), FP_* classification macros,
the full POSIX errno vocabulary, complete DT_* dirent types, and
mbstate_t.

The SDK ships the real libstdc++.a (was an empty stand-in), the C++
headers at 0:/sdk/include/c++, and cxx-test.elf (global ctor, string,
vector+sort, unique_ptr, throw/catch; exits 0 on 5/5). Ramdisk sits
at 1571 files, within the 2048 table.

Co-Authored-By: Claude Fable 5 <[email protected]>
2026-07-16 23:06:50 +02:00

100 lines
2.2 KiB
C

#ifndef _LIBC_ERRNO_H
#define _LIBC_ERRNO_H
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
extern int errno;
/* Linux errno numbering. */
#define EPERM 1
#define ENOENT 2
#define ESRCH 3
#define EINTR 4
#define EIO 5
#define ENXIO 6
#define E2BIG 7
#define ENOEXEC 8
#define EBADF 9
#define ECHILD 10
#define EAGAIN 11
#define ENOMEM 12
#define EACCES 13
#define EFAULT 14
#define EBUSY 16
#define EEXIST 17
#define EXDEV 18
#define ENODEV 19
#define ENOTDIR 20
#define EISDIR 21
#define EINVAL 22
#define ENFILE 23
#define EMFILE 24
#define ENOTTY 25
#define EFBIG 27
#define ENOSPC 28
#define ESPIPE 29
#define EROFS 30
#define EMLINK 31
#define EPIPE 32
#define EDOM 33
#define ERANGE 34
#define EDEADLK 35
#define ENAMETOOLONG 36
#define ENOLCK 37
#define ENOSYS 38
#define ENOTEMPTY 39
#define ELOOP 40
#define EWOULDBLOCK EAGAIN
#define ETXTBSY 26
#define ENOMSG 42
#define EIDRM 43
#define ENOSTR 60
#define ENODATA 61
#define ETIME 62
#define ENOSR 63
#define ENOLINK 67
#define EPROTO 71
#define EMULTIHOP 72
#define EBADMSG 74
#define EOVERFLOW 75
#define EILSEQ 84
#define ENOTSOCK 88
#define EDESTADDRREQ 89
#define EMSGSIZE 90
#define EPROTOTYPE 91
#define ENOPROTOOPT 92
#define EPROTONOSUPPORT 93
#define EOPNOTSUPP 95 /* == ENOTSUP, Linux numbering */
#define EAFNOSUPPORT 97
#define EADDRINUSE 98
#define EADDRNOTAVAIL 99
#define ENETDOWN 100
#define ENETUNREACH 101
#define ENETRESET 102
#define ECONNABORTED 103
#define ECONNRESET 104
#define ENOBUFS 105
#define EISCONN 106
#define ENOTCONN 107
#define ETIMEDOUT 110
#define ECONNREFUSED 111
#define EHOSTUNREACH 113
#define EALREADY 114
#define EINPROGRESS 115
#define ESTALE 116
#define EDQUOT 122
#define ECANCELED 125
#define EOWNERDEAD 130
#define ENOTRECOVERABLE 131
#define ENOTSUP 95
#ifdef __cplusplus
}
#endif
#endif /* _LIBC_ERRNO_H */