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Last change
on this file since 123 was 123, checked in by zap, 23 years ago |
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Started the work for re-designing the EMX C runtime library to not require
EMX.DLL. The new design is projected to be as follows:
- all emx syscalls are replaced with the routines from the old sys.lib library
which is now compilable in both a.out and OMF formats.
- the sys.a library should be made replaceable and selectable by some gcc
switch (e.g. -msyslib=emx would link with emx.a instead of sys.a which would
give almost full backward compatibility with emx).
- All C functions names were renamed to not contain the starting underscore
(e.g. fopen and not _fopen). The underscored aliases will be added later
with the c_alias library (which will be generated automatically from all
public symbols of libc; any exported symbol that do not start with an
underscore will be given an underscored alias unless such a symbol is already
defined).
Also a lot of updates to the building system. It is now much faster (thanks
to Knut's suggestion of using ash's builtin echo).
Also re-wrote thunk1.asm and thunk2.asm to GAS format; this removes the need
for MASM and makes it possible to use 16-bit functions in a.out programs
without the need for EMX.DLL.
Also made a lot of small changes I don't remember now.
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-
Property cvs2svn:cvs-rev
set to
1.2
-
Property svn:eol-style
set to
native
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Property svn:executable
set to
*
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File size:
954 bytes
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| 1 | /* sysconf.c (emx+gcc) -- Copyright (c) 1994-1995 by Eberhard Mattes */
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| 2 |
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| 3 | #include <unistd.h>
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| 4 | #include <limits.h>
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| 5 | #include <time.h>
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| 6 | #include <errno.h>
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| 7 |
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| 8 | /* Return the POSIX.1 minimum values, for now. */
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| 9 |
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| 10 | long sysconf (int name)
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| 11 | {
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| 12 | switch (name)
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| 13 | {
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| 14 | case _SC_ARG_MAX:
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| 15 | return _POSIX_ARG_MAX;
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| 16 |
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| 17 | case _SC_CHILD_MAX:
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| 18 | return _POSIX_CHILD_MAX;
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| 19 |
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| 20 | case _SC_CLK_TCK:
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| 21 | /* On emx, CLK_TCK is a constant. On other systems, it may a
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| 22 | macro which calls sysconf (_SC_CLK_TCK). */
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| 23 |
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| 24 | return CLK_TCK;
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| 25 |
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| 26 | case _SC_NGROUPS_MAX:
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| 27 | return _POSIX_NGROUPS_MAX;
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| 28 |
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| 29 | case _SC_OPEN_MAX:
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| 30 | return _POSIX_OPEN_MAX;
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| 31 |
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| 32 | case _SC_STREAM_MAX:
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| 33 | return _POSIX_STREAM_MAX;
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| 34 |
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| 35 | case _SC_TZNAME_MAX:
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| 36 | return _POSIX_TZNAME_MAX;
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| 37 |
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| 38 | case _SC_JOB_CONTROL:
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| 39 | return -1;
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| 40 |
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| 41 | case _SC_SAVED_IDS:
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| 42 | return -1;
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| 43 |
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| 44 | case _SC_VERSION:
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| 45 | return _POSIX_VERSION;
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| 46 |
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| 47 | default:
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| 48 | errno = EINVAL;
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| 49 | return -1;
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| 50 | }
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| 51 | }
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