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cde/src/lib/libast/features/sys
Martijn Dekker a1f5c99204 INIT: remove proto, ratz (re: 46593a89, 6137b99a); major cleanup 
This takes another step towards cleaning up the build system. We
now do not even pretend to be theoretically compatible with
pre-1989 K&R C compilers or with C++ compilers. In practice, this
had already been broken for many years due to bit rot.

Commit 46593a89 already removed the license handling enormity that
depended on proto, so now we can cleanly remove it altogether. But
we do need to leave some backwards compatibility stubs to keep the
build system compatible with older AST code; it should remain
possible to build older ksh versions with the current build system
(the bin/ and src/cmd/INIT/ directories) for testing purposes.

So as of now there is no more __MANGLE__d rubbish in your generated
header files. This is only about a quarter of a century overdue...

This commit also includes a huge amount of code cleanup to remove
thousands of unused K&R C fallbacks and other cruft, particularly
in libast. This code base should now be a little easier to
understand for people who are familiar with a modern(ish) C
standard.

ratz is now also removed; this was a standalone and simplified 2005
version of gunzip. As of 6137b99a, none of our code uses it, even
theoretically. And the real g(un)zip is now everywhere.

src/cmd/INIT/proto.c, src/cmd/INIT/ratz.c:
- Removed.

COPYRIGHT:
- Remove zlib license; this only applied to ratz.

bin/package, src/cmd/INIT/package.sh:
- Related cleanups.
- Unset LC_ALL before invoking a new shell, respecting the user's
  locale again and avoiding multibyte character corruption on the
  command line.

src/cmd/INIT/proto.sh:
- Add stub for backwards compatibility with Mamfiles that depend on
  proto. It does nothing but pass input without modification and is
  now installed as the new arch/*/bin/proto by src/cmd/INIT/Mamfile.

src/cmd/INIT/iffe.sh:
- Ignore the proto-related -e (--package) and -p (--prototyped)
  options; keep parsing them for backwards compatibility.
- Trim the macros passed to every test to their standard C
  versions, removing K&R C and C++ versions. These are now
  considered to be for backwards compatibility only.

src/cmd/INIT/iffe.tst:
- Remove proto(1) mangling code.
  By the way, iffe can be regression-tested as follows:
        $ bin/package use   # set up environment in a child shell
        $ regress src/cmd/INIT/iffe.tst
        $ exit              # leave package environment

src/cmd/INIT/make.probe, src/cmd/INIT/probe.win32:
- Remove code to handle C++.

src/lib/libast/features/common:
- As in iffe.sh above, trim macros designed for compatibility with
  C++ and ancient C compilers to their standard C versions and
  comment that they are for backwards compatibility with AST code.
  This is needed to keep all the old ast and ksh code compiling.

src/cmd/ksh93/sh/init.c,
src/cmd/ksh93/sh/name.c:
- Clarify libshell ABI compatibility function versions of macros.
  A "proto workaround" comment in the original code mislead me into
  thinking this had something to do with the removed proto(1), but
  it's unrelated. Call the workaround macro BYPASS_MACRO instead.

src/cmd/ksh93/include/defs.h:
- sh_sigcheck() macro: allow &sh as an argument: parenthesise shp.

src/cmd/ksh93/sh/nvtype.c:
- Remove unused nv_mkstruct() function. (re: d0a5cab1)

**/features/*:
- Remove obsolete iffe 'set prototyped' option.

**/Mamfile:
- Remove all references to the ast/prototyped.h header.
- Remove all use of the proto command. Simply copy instead.

*** 850-ish source files: ***
- Remove all '#pragma prototyped' directives.
- Remove all C++ compat code conditional upon defined(__cplusplus).
- Remove all use of the _ARG_ macro, which on standard C expands to
  its argument:
        #define _ARG_(x)        x
  (on K&R C, it expanded to nothing)
- Remove all use of _BEGIN_EXTERNS_ and _END_EXTERNS_ macros (empty
  on standard C; this was for C++ compatibility)
- Reduce all #if __STD_C (standard code) #else (K&R code) #endif
  blocks to the standard code only, without use of the macro.
- Same for _STD_ macro which seems to have had the same function.
- Change all instances of 'Void_t' to standard 'void'.
2021-12-24 07:05:22 +00:00

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iff AST_SYS
ref -D_def_map_ast
print #if __mips == 2 && !defined(_NO_LARGEFILE64_SOURCE)
print #define _NO_LARGEFILE64_SOURCE 1
print #endif
print #if !defined(_NO_LARGEFILE64_SOURCE) && _typ_off64_t && _lib_lseek64 && _lib_stat64
print #if !defined(_LARGEFILE64_SOURCE)
print #define _LARGEFILE64_SOURCE 1
print #endif
print #if !defined(_LARGEFILE_SOURCE)
print #define _LARGEFILE_SOURCE 1
print #endif
print #if !defined(_LARGE_FILE_API)
print #define _LARGE_FILE_API 1
print #endif
print #else
print #undef _LARGEFILE64_SOURCE
print #undef _LARGEFILE_SOURCE
print #undef _LARGE_FILE_API
print #undef _typ_ino64_t
print #undef _typ_off64_t
print #undef _typ_struct_dirent64
print #undef _lib_creat64
print #undef _lib_fstat64
print #undef _lib_fstatvfs64
print #undef _lib_ftruncate64
print #undef _lib_lseek64
print #undef _lib_lstat64
print #undef _lib_mmap64
print #undef _lib_open64
print #undef _lib_readdir64
print #undef _lib_stat64
print #undef _lib_statvfs64
print #undef _lib_truncate64
print #endif
print #if !_lib_readdir64
print #undef _typ_ino64_t
print #endif
print #if defined(__STDC__) && !defined(__USE_FIXED_PROTOTYPES__)
print #define __USE_FIXED_PROTOTYPES__ 1 /* kick gcc out of the past */
print #endif
header stdlib.h
header stddef.h
header sys/types.h
header stdint.h
header inttypes.h
header string.h
header unistd.h
header limits.h
header fcntl.h
header locale.h
typ dev_t,nlink_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef short $v;"
echo "#endif"
}end
typ gid_t,mode_t,uid_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef unsigned short $v;"
echo "#endif"
}end
typ wchar_t stdio.h wchar.h fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef unsigned short $v;"
echo "#endif"
}end
typ pid_t,ssize_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef int $v;"
echo "#endif"
}end
typ wint_t stdio.h wchar.h fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef int $v;"
echo "#endif"
}end
typ socklen_t sys/socket.h fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef int $v;"
echo "#endif"
}end
typ size_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef unsigned int $v;"
echo "#endif"
}end
typ clock_t,ino_t,off_t,ptrdiff_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef long $v;"
echo "#endif"
}end
typ time_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef unsigned long $v;"
echo "#endif"
}end
typ div_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef struct { int quot; int rem; } $v;"
echo "#endif"
}end
typ ldiv_t fail{
echo "#ifndef $m"
echo "#define $m 1"
echo "typedef struct { long quot; long rem; } $v;"
echo "#endif"
}end
tst typ_signed_size_t output{
#include <sys/types.h>
int
main()
{
unsigned long u = ~0;
size_t s = ~0;
if (s >= 0)
return 1;
printf("#if !defined(_typ_signed_size_t)\n/* ensure unsigned size_t */\ntypedef unsigned %s _ast_size_t;\n#undef\tsize_t\n#define size_t\t_ast_size_t\n#endif\n", u == (unsigned long)s ? "long" : "int");
return 0;
}
}end
define offsetof (type,member) __builtin_offsetof(type,member)
define EXIT_FAILURE 1
define EXIT_SUCCESS 0
define MB_CUR_MAX 1
define RAND_MAX 32767
define STDIN_FILENO 0
define STDOUT_FILENO 1
define STDERR_FILENO 2
define NULL 0
define SEEK_SET 0
define SEEK_CUR 1
define SEEK_END 2
define F_OK 0
define X_OK 1
define W_OK 2
define R_OK 4
print #if _BLD_ast && defined(__EXPORT__)
print #define extern __EXPORT__
print #endif
extern _exit void (int)
extern abort void (void)
extern abs int (int)
extern access int (const char*, int)
extern alarm unsigned (unsigned)
extern atexit int (void(*)(void))
extern atof double (const char*)
extern atoi int (const char*)
extern atol long (const char*)
extern bsearch void* (const void*, const void*, size_t, size_t, int(*)(const void*, const void*))
extern calloc void* (size_t, size_t)
extern cfree void (void*)
extern chdir int (const char*)
extern chown int (const char*, uid_t, gid_t)
extern close int (int)
extern confstr size_t (int, char*, size_t)
extern div div_t (int, int)
extern dup int (int)
extern dup2 int (int, int)
extern eaccess int (const char*, int)
extern execl int (const char*, const char*, ...)
extern execle int (const char*, const char*, ...)
extern execlp int (const char*, const char*, ...)
extern execv int (const char*, char* const[])
extern execve int (const char*, char* const[], char* const[])
extern execve int (const char*, char* const[], char* const[])
extern execvp int (const char*, char* const[])
extern execvpe int (const char*, char* const[], char* const[])
extern exit void (int)
extern fork pid_t (void)
extern fpathconf long (int, int)
extern free void (void*)
extern fsync int (int)
extern ftruncate int (int, off_t)
extern getcwd char* (char*, size_t)
extern getegid gid_t (void)
extern getenv char* (const char*)
extern geteuid uid_t (void)
extern getgid gid_t (void)
extern getgroups int (int, gid_t[])
extern getlogin char* (void)
extern getpgrp pid_t (void)
extern getpid pid_t (void)
extern getppid pid_t (void)
extern gettxt char* (const char*, const char*)
extern getuid uid_t (void)
extern isatty int (int)
extern labs long (long)
extern ldiv ldiv_t (long, long)
extern link int (const char*, const char*)
extern lseek off_t (int, off_t, int)
extern malloc void* (size_t)
extern mblen int (const char*, size_t)
extern mbstowcs size_t (wchar_t*, const char*, size_t)
extern mbtowc int (wchar_t*, const char*, size_t)
extern memalign void* (size_t, size_t)
extern memccpy void* (void*, const void*, int, size_t)
extern memchr void* (const void*, int, size_t)
extern memcmp int (const void*, const void*, size_t)
extern memcpy void* (void*, const void*, size_t)
extern memmove void* (void*, const void*, size_t)
extern memset void* (void*, int, size_t)
extern pathconf long (const char*, int)
extern pause int (void)
extern pipe int (int[])
extern pvalloc void* (size_t)
extern qsort void (void*, size_t, size_t, int(*)(const void*, const void*))
extern rand int (void)
extern read ssize_t (int, void*, size_t)
extern realloc void* (void*, size_t)
extern realpath char* (const char*, char*)
extern resolvepath char* (const char*, char*, size_t)
extern rmdir int (const char*)
extern setgid int (gid_t)
extern setpgid int (pid_t, pid_t)
extern setsid pid_t (void)
extern setuid int (uid_t)
extern sleep unsigned (unsigned int)
extern spawnveg pid_t (const char*, char* const[], char* const[], pid_t)
extern srand void (unsigned int)
extern strcasecmp int (const char*, const char*)
extern strcat char* (char*, const char*)
extern strchr char* (const char*, int)
extern strcmp int (const char*, const char*)
extern strcoll int (const char*, const char*)
extern strcpy char* (char*, const char*)
extern strcspn size_t (const char*, const char*)
extern strdup char* (const char*)
extern strlcat size_t (char*, const char*, size_t)
extern strlcpy size_t (char*, const char*, size_t)
extern strlen size_t (const char*)
extern strncasecmp int (const char*, const char*, size_t)
extern strncat char* (char*, const char*, size_t)
extern strncmp int (const char*, const char*, size_t)
extern strncpy char* (char*, const char*, size_t)
extern strpbrk char* (const char*, const char*)
extern strrchr char* (const char*, int)
extern strspn size_t (const char*, const char*)
extern strstr char* (const char*, const char*)
extern strtok char* (char*, const char*)
extern strxfrm size_t (char*, const char*, size_t)
extern swab void (const void*, void*, ssize_t)
extern sysconf long (int)
extern system int (const char*)
extern tcgetpgrp pid_t (int)
extern tcsetpgrp int (int, pid_t)
extern truncate int (const char*, off_t)
extern ttyname char* (int)
extern unlink int (const char*)
extern valloc void* (size_t)
extern wcstombs size_t (char*, const wchar_t*, size_t)
extern wctomb int (char*, wchar_t)
extern write ssize_t (int, const void*, size_t)
print #undef extern
# <stdarg.h> is handled by proto so this must be after the last test
print #include <stdarg.h>
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