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Author SHA1 Message Date
David Given 79fd34dac6 Call atexit handlers properly, avoiding a NPE and seg fault every time a 
program exits.
 2018-09-09 18:51:00 +02:00
David Given b76352de99 Remove stray #include. 2018-09-02 12:54:53 +02:00
David Given cb983fac44 Rip out the built-in preprocessor from cemcom.ansi, now it's no longer used. 2018-09-02 12:50:50 +02:00
David Given 6931ffa5a4 Disable the built-in preprocessor in cemcom.ansi; the external preprocessor is 
always run. Fix a bug in block skipping in the preprocessor.
 2018-09-02 12:39:00 +02:00
David Given f8fc5bc3d8 Implement single-line C++-style comments. 
Fixes: #118
 2018-09-02 12:14:59 +02:00
David Given 0e9736fdca Run through clang-format before editing. 2018-09-02 12:04:33 +02:00
David Given 274ed3cb6a Run through clang-format before editing. 2018-09-02 11:49:40 +02:00
David Given dd00b81080 Run files through clang-format before editing. 2018-09-02 11:36:15 +02:00
David Given 788f439a48 Run files through clang-format before editing. 2018-09-02 11:16:06 +02:00
David Given fd94e219d4 Remove the attic. 2018-06-23 23:16:22 +02:00
David Given 59dbdea48a Move mktemp to sys; attic getgrent as noone will ever use this. 2018-06-23 23:15:42 +02:00
David Given 3f10299f43 Move the portable time code into core. clock() goes into sys (as it calls 
times()).
 2018-06-23 19:49:29 +02:00
David Given 64ae1d7583 Move time() into sys; change the name of the variable which controls it. 2018-06-23 19:40:50 +02:00
David Given bb78fd158c Move the big gnarly functions like system() and popen() into sys, and make them 
build.
 2018-06-23 19:18:16 +02:00
David Given 6a729b846a Move stdio into (mostly) sys. 2018-06-23 18:54:40 +02:00
David Given af22b7ea85 Change stdio to use atexit() rather than the internal __clean variable; this 
breaks the dependency between exit/atexit and stdio. Buffers are no longer
flushed on abort() (because it's pretty risky). Move the relevant functions
into sys/core.
 2018-06-23 18:35:45 +02:00
David Given f744a21699 All the opendir()/readdir() stuff is obsolete because it's all implemented in 
terms of open() and read(), which isn't how it's done any more; move the
functions into an attic.
 2018-06-23 18:25:26 +02:00
David Given df1cdf7762 Add the sys directory for libc functions which use system calls; move the 
malloc functions in there.
 2018-06-23 18:08:03 +02:00
David Given c4e4505a73 Move the errno functions into core. 2018-06-23 17:52:15 +02:00
David Given 538eefb573 Get em22 working. Remove the leading-underscore system calls from its libsys. 2018-06-23 15:57:57 +02:00
David Given 680b4071b7 Made the two OSX platforms work with the new libc layout. 2018-06-23 12:55:59 +02:00
David Given b727b7affd Make linuxppc work. 2018-06-23 12:41:54 +02:00
David Given b267b56ad9 Made linux68k work; commoned up all the generic linux includes. 2018-06-23 12:35:17 +02:00
David Given 66815ff987 Make linux386 work with the new libc layout. 2018-06-23 12:13:33 +02:00
David Given 32c881474e Create a basic and probably wrong common unistd.h, which replaces the plat one. 
Made this work with cpm (but nothing else yet).
 2018-06-23 11:46:55 +02:00
David Given dd0f959245 Move assert into core. 2018-06-23 11:16:06 +02:00
David Given 5fd8d772fd Move the string-to-float functions into core, after marking them as 
ACKCONF_WANT_FLOAT.
 2018-06-23 11:14:24 +02:00
David Given 94ffa3ba88 libc floating point and stdio floating point can now be turned on and off using 
ACKCONF variables.
 2018-06-23 00:04:14 +02:00
David Given 9bf1d548fc Rearrange the libc config files, ready for adding new options. 2018-06-22 23:43:15 +02:00
David Given c0276416d8 Move some more libc functions into core. 2018-06-22 22:20:02 +02:00
David Given d1cdb07719 Realise that the libc core can safely call other libc core functions, even if 
they're not defined in the core: so putw() can call stdio stuff, for example.
So the earlier concept of pureness isn't necessary. Rename accordingly.
 2018-06-21 23:24:23 +02:00
David Given 62025c92bd The ctype functions are pure. 2018-06-21 23:06:29 +02:00
David Given d9d7ffe0d7 The maths library is pure. 2018-06-21 23:00:33 +02:00
David Given f9c059812b Moved the setjmp functions into the new pure directoy. 2018-06-21 22:55:42 +02:00
David Given 32f47b1d24 Move the pure locale functions into the new pure directory. 2018-06-21 22:54:25 +02:00
David Given b9d2f353d9 Move the pure stdlib functions into the new pure directory. 2018-06-21 22:52:31 +02:00
David Given 4dbdb7d8d5 Rethink the libc layout. 2018-06-21 22:47:02 +02:00
David Given 83e1b2ad94 Move the str and mem functions into the new src/core. 2018-06-21 22:39:08 +02:00
David Given 93f39e4bbf Run libcc.ansi through clang-format. 2018-06-21 22:33:47 +02:00
David Given 13e195d19f Warning fixes. 2018-06-17 15:42:26 +02:00
David Given 7eaa235fd1 Bodge the ancient em monitor library into building as a libsys for the em22 
plat. It's completely untested, but it builds and makes e.out executables.
 2018-06-13 21:44:25 +09:00
David Given d623440c77 Add the core of a simple em22 platform. Unfortunately it doesn't work; the old 
em libmon vanished decades ago (or never existed), and also ass appears to have
a different idea of what the em opcodes are to everything else and gets
confused.
 2018-06-10 20:25:48 +09:00
David Given b85c25e4e5 Fix resource leak. 
Closes: #75
 2018-06-02 20:59:11 +02:00
David Given d6e65833fb Format. 2018-06-02 20:57:43 +02:00
George Koehler 87a2315037 strcmp, strncmp are in <string.h> 
*Important:*  Do `make clean` to work around a problem and prevent
infinite rebuilds, https://github.com/davidgiven/ack/issues/68

I edit tokens.g in util/LLgen/src, so I regenerate tokens.c.  The
regeneration script bootstrap.sh can't find LLgen, but I can run the
same command by typing the path to llgen.
 2017-11-14 17:35:35 -05:00
George Koehler ddf9de3f49 strcpy() is in <string.h> 2017-11-13 17:57:02 -05:00
George Koehler 3463f0c944 bts2str(), long2str() are in <ack_string.h> 2017-11-10 18:00:00 -05:00
George Koehler ca4bd38206 Delete old "assert.h" files; use libc <assert.h>. 
Edit build.lua for programs losing their private assert.h, so they
depend on a list of .h files excluding assert.h.

Remove modules/src/assert; it would be a dependency of cpp.ansi but we
didn't build it, so cpp.ansi uses the libc assert.

I hope that libc <assert.h> can better report failed assertions.  Some
old "assert.h" files didn't report the expression.  Some reported a
literal "x", because traditional C expanded the macro parameter x in
"x", but ANSI C89 doesn't expand macro parameters in string literals.
 2017-11-09 22:22:13 -05:00
George Koehler 59b3c10563 Use (arith) 1 << ... when getting the sign bit. 
This prevents an overflow reported by @hexcoder- in
https://github.com/davidgiven/ack/issues/56

lang/cem/cpp.ansi/LLlex.c used a plain 1 << ... and caused an overflow
on machines where sizeof(int) < sizeof(long).  Using 1L << ... would
work for now but might fail later if arith became long long.

C doesn't specify whether negative integers use 2's complement or some
other format.  Therefore, (arith) 1 << ... has an undefined value.  It
should still work because the value is some integer where the sign bit
is set and all other bits are clear.

(unsigned arith) 1 << ... would also get the sign bit, but casting it
from unsigned back to signed would make the same undefined value.

(arith) -1 << ... would assume 2's complement.
 2017-10-29 17:45:10 -04:00
George Koehler d36807b395 Remove UNSIGNED_ARITH from a few more files. 
I missed these in commits 649410b and 1ab1306.
 2017-10-29 17:03:51 -04:00