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| 2 |
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| 3 | R e l e a s e N o t e s G C C f o r O S / 2
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| 4 | +----------------------------------------------------+
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| 5 |
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| 6 |
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| 7 | (C)'2003-2004 InnoTek Systemberatung GmbH
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| 8 | http://www.innotek.de
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| 9 |
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| 10 |
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| 11 | v3.2.2 Beta 4:
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| 12 | --------------
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| 13 |
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| 14 | (The changelog is removed, thus the release notes are more detailed.)
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| 15 |
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| 16 | New features and fixes:
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| 17 |
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| 18 | o Filehandle rewrite. Files, pipes and sockets now share the same
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| 19 | handle space.
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| 20 |
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| 21 | o GCC defines __INNOTEK_LIBC__=0x005.
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| 22 | The value reflects the LIBC version, form: 0xGMM
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| 23 | Where G=major version and MM=middle version numbers.
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| 24 |
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| 25 | o Changed library search algorithms for the linkers (emxomfld
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| 26 | and ld). Three variations, static, shared and shared+dll.
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| 27 | (The options indicated corresponds to what binutils 2.12.x
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| 28 | documents.)
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| 29 | static: (-Bstatic, -non_shared, -dn, -static)
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| 30 | 1. libfoo_s.a
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| 31 | 2. foo_s.a
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| 32 | 3. libfoo.a
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| 33 | 4. foo.a
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| 34 | shared: (default, -Bshared, -call_shared, -dy)
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| 35 | 1. libfoo_dll.a
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| 36 | 2. foo_dll.a
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| 37 | 3. libfoo.a
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| 38 | 4. foo.a
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| 39 | 5. libfoo_s.a
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| 40 | 6. foo_s.a
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| 41 | shared+dll: (-Zdll-search with -Bshared, -call_shared, -dy)
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| 42 | 1. libfoo_dll.a
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| 43 | 2. foo_dll.a
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| 44 | 3. libfoo.a
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| 45 | 4. foo.a
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| 46 | 5. foo.dll
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| 47 | 6. libfoo_s.a
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| 48 | 7. foo_s.a
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| 49 |
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| 50 | o Added some deadlock checking/termination checks to semphores.
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| 51 |
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| 52 | o Added macros to os2emx.h for preserving FPU control word and
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| 53 | applied these to certing read and write operations in LIBC.
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| 54 |
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| 55 | o Added feature to emxomfld to automatically convert a.out
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| 56 | libraries and objects to OMF (using temporary files). Enabled
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| 57 | by default but can be disabled by the option -Zno-autoconv.
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| 58 |
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| 59 | o Added support to emximp for dlls.
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| 60 |
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| 61 | o Added support for automatic conversion of dlls to temporary
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| 62 | import libraries emxomfld and ld.
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| 63 |
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| 64 | o Added getopt_long() and changed getopt() to FreeBSD
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| 65 | implementations.
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| 66 |
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| 67 | o Added a few more code page aliases.
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| 68 |
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| 69 | o Added optional breakpoint in abort. The presense of the env.var.
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| 70 | LIBC_BREAKPOINT_ABORT triggers the breakpoint instruction.
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| 71 |
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| 72 | o Added syslog interfaces (contrib from Yuri Dario).
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| 73 |
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| 74 | o Added to libc and updated BSD db code to FreeBSD 5.1 level.
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| 75 |
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| 76 | o Added to libc and updated regex code to FreeBSD 5.1 level.
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| 77 |
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| 78 | o Ported the posix spawn api from GLIBC v2.3.2.
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| 79 |
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| 80 | o Updated with os2emx.h flags for DosQueryMemState().
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| 81 |
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| 82 | o Changed size_t to unsigned int (from unsigned long int) and
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| 83 | ptrdiff_t to signed int (from signed long int) to comply with
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| 84 | most of the other i386 environments.
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| 85 |
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| 86 | o Changed abort and default signal termination messages to say
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| 87 | which process it's printed from.
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| 88 |
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| 89 | o Changed the glob() and globfree() implemenation with a port of
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| 90 | the FreeBSD 5.1 implemenation.
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| 91 |
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| 92 | o Changed so_ioctl() to os2_ioctl() to better match the toolkit.
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| 93 |
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| 94 | o Changed time_t to be signed as in BSD & linux.
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| 95 | (Negative values means date/time before epoc.)
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| 96 |
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| 97 | o Changed to FreeBSD implementation of difftime().
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| 98 |
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| 99 | o Increased default stream buffer size to 2 pages.
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| 100 |
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| 101 | o Workaround for DosSetFileLocksL() on non JFS volumes.
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| 102 |
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| 103 | o Workaround for bad FIL_STANDARDL buffer handling in os2krnl.
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| 104 |
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| 105 | o Fixed waitpid() to respect the WNOHANG flag.
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| 106 |
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| 107 | o Fixed strerror() to set errno if an invalid error number is
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| 108 | specified.
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| 109 |
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| 110 | o Fixed problem with emxexp emitting ordinal without being told.
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| 111 |
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| 112 | o Fixed broken setenv().
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| 113 |
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| 114 | o Fixed errno value for read() and write() when the handle isn't
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| 115 | opened for that operation.
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| 116 |
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| 117 | o Fixed a bad record length problem in emxomf.
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| 118 |
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| 119 | o Fixed type_tag too long issue in emxomf.
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| 120 |
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| 121 | o Fixed repetition of main source file in HLL debuginfo (emxomf).
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| 122 |
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| 123 | o Fixed weakld problem with selfrefering aliases.
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| 124 |
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| 125 | o Fixed weakld problem with PUBLIC and COMM clash.
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| 126 |
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| 127 | o Fixed problem with streams not being flushed on termination.
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| 128 |
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| 129 | o Fixed define clash in float.h when in C99 mode.
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| 130 |
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| 131 | o Fixed abend in GCC if TMPDIR or TMP was ending with a slash.
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| 132 |
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| 133 | o Fixed crash in ld when having fixups to weak symbols.
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| 134 |
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| 135 | o Fixed bad conversion of dll0*.o to OMF, the OMF version got an
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| 136 | unwanted stack object.
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| 137 |
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| 138 | o New functions:
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| 139 | isblank(), ishexnumber(), isnumber(), mempcpy(), realpath(),
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| 140 | strnlen(), asctime_r(), ctime_r(), gmtime_r(), localtime_r(),
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| 141 | strerror_r()
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| 142 |
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| 143 | o New functions & globals (from FreeBSD 5.1):
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| 144 | imaxabs(), imaxdiv(), strtoimax(), strtoumax(), hcreate(),
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| 145 | hdestroy(), hsearch(), insque(), lfind(), lsearch(),
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| 146 | remque(), tdelete(), tfind(), tsearch(), twalk(), reallocf(),
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| 147 | strsignal(), sys_signame, sys_siglist, sys_nsig, regcomp(),
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| 148 | regerror(), regexec(), regfree(), + bsd db functions.
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| 149 |
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| 150 | o New functions (from GLIBC 2.3.2):
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| 151 | error(), error_at_line(), strndup(), argz_add(),
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| 152 | argz_add_sep(), argz_append(), argz_count(), argz_create(),
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| 153 | argz_create_sep(), argz_delete(), argz_extract(),
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| 154 | argz_insert(), argz_next(), argz_replace(), argz_stringify(),
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| 155 | posix_spawnp() posix_spawn(), posix_spawnattr_destroy(),
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| 156 | posix_spawnattr_getflags(), posix_spawnattr_getpgroup(),
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| 157 | posix_spawnattr_getschedparam(),
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| 158 | posix_spawnattr_getschedpolicy(),
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| 159 | posix_spawnattr_getsigdefault(),
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| 160 | posix_spawnattr_getsigmask(), posix_spawnattr_init(),
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| 161 | posix_spawnattr_setflags(), posix_spawnattr_setpgroup(),
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| 162 | posix_spawnattr_setschedparam(),
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| 163 | posix_spawnattr_setschedpolicy(),
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| 164 | posix_spawnattr_setsigdefault(),
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| 165 | posix_spawnattr_setsigmask(),
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| 166 | posix_spawn_file_actions_addclose(),
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| 167 | posix_spawn_file_actions_adddup2(),
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| 168 | posix_spawn_file_actions_addopen(),
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| 169 | posix_spawn_file_actions_destroy(),
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| 170 | posix_spawn_file_actions_init()
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| 171 |
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| 172 | o New headers:
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| 173 | nerrno.h (toolkit compatability)
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| 174 |
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| 175 | o New headers (from FreeBSD 5.1):
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| 176 | search.h, sys/queue.h, net/if_types.h
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| 177 |
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| 178 | o New headers (from GLIBC 2.3.2):
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| 179 | features.h (somewhat crippled),
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| 180 | sys/gnu/cdefs.h (included from BSD styled sys/cdefs.h)
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| 181 |
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| 182 | o Updated headers:
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| 183 | stddef.h (FreeBSD, sys/stddef.h (FreeBSD),
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| 184 | ulsitem.h (missing defines), os2emx.h
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| 185 |
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| 186 | o What did I forget...
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| 187 |
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| 188 |
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| 189 | v3.2.2 Beta 3 Fix 1 (private build):
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| 190 | ------------------------------------
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| 191 |
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| 192 | Fixes to LIBC:
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| 193 |
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| 194 | o Crash if calloc was called before main().
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| 195 |
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| 196 | o TZ parsing of timezones such as PST8EDT.
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| 197 |
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| 198 | o sigsetjmp() and siglongjmp() visibility.
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| 199 |
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| 200 |
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| 201 | v3.2.2 Beta 3:
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| 202 | --------------
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| 203 |
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| 204 | A few new features and fixes.
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| 205 |
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| 206 | o Fixed a bunch of debug info problems.
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| 207 |
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| 208 | o Added large file support.
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| 209 |
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| 210 | o Enabled high memory support for LIBC. Two new options to GCC:
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| 211 | -Zhigh-mem and -Zhigh-low. If the program is to be enabled for
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| 212 | high memory use, specify -Zhigh-mem when linking.
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| 213 |
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| 214 | Note that socket is not high memory enabled yet.
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| 215 |
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| 216 | o Made LIBC preserve the FS selector.
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| 217 |
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| 218 | o Added random() and *rand48() from BSD.
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| 219 |
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| 220 | o Fixed crash with link386 and unresolved symbols.
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| 221 |
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| 222 |
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| 223 | v3.2.2 Beta 2:
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| 224 | --------------
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| 225 |
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| 226 | A few bugfixes and a some new features (as usual).
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| 227 |
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| 228 | o Added file locking support to LIBC.
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| 229 |
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| 230 | o Fixed _System and _Optlink bugs and made _Optlink support
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| 231 | floating point argument passing in registers.
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| 232 |
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| 233 | o Header updates related to limits and file locking primarily.
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| 234 |
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| 235 | o Timezone fixes.
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| 236 |
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| 237 | o Fixed some CRT init trouble in regards to getenv and putenv.
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| 238 |
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| 239 | o And some other minor stuff..
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| 240 |
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| 241 |
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| 242 | v3.2.2 Beta 1:
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| 243 | --------------
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| 244 |
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| 245 | A few bugfixes and a some new features.
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| 246 |
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| 247 | o Locale support in libc.
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| 248 |
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| 249 | o Implemented a different approach to OMF and weak symbols. This
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| 250 | new hack performs pre-linking before invoking the OMF linker
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| 251 | generating new .def files if needed and an extra object file with
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| 252 | aliases to resolve the weak symbols correctly.
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| 253 | The old approach will be used used when GCC_WEAKSYMS is present in
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| 254 | the environment.
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| 255 |
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| 256 | Please note that due to a bug in BFD, weak symbols don't work
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| 257 | 100% correctly. This will be addressed as soon as we have
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| 258 | performed the switch to a more recent version of binutils.
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| 259 |
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| 260 | o A couple of new functions in libc, and a few corrections to
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| 261 | existing in respect to namespaces.
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| 262 |
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| 263 | o Addressed issues with calling conventions. We now detect
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| 264 | incompatible calling conventions, emitting warnings and errors
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| 265 | where appropriate.
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| 266 |
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| 267 | o _Optlink is much better, but there are still some issues
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| 268 | left. Passing prototyped floating point parameters to
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| 269 | _Optlink doesn't work. Mixing of parameters which go into
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| 270 | registers (eax, edx, ecx) and parameters which
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| 271 | don't - void foo(int eax, struct sss s, int edx) - doesn't
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| 272 | work. All these issues are being addressed and are expected
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| 273 | to be fixed in the next build.
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| 274 |
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| 275 | o Changed GCC to link with shared libc by default. This means
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| 276 | that in order to link with the static libc one has to specify
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| 277 | -static. It also means that -Zmtd or -Zcrtdll are no longer
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| 278 | required for linking with shared libc and can be removed from
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| 279 | all makescripts.
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| 280 |
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| 281 | o Changed EMXOMFLD defaults to ilink from Visual Age for C++
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| 282 | v3.6.5 or later (preferably later). The emxomfld usage output
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| 283 | will instruct you on how to use older linkers. For VAC308 and
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| 284 | VAC365 linkers /dbgpack is specified if debuginfo is to be
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| 285 | generated. Emxomf checks for EMXOMFLD_TYPE=link386 when choosing
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| 286 | debug info level.
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| 287 |
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| 288 | o Shipping three extra libc dlls:
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| 289 | libc02.dbg: Unstripped version of libc02.dll. This is
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| 290 | identical except from the presense of debug
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| 291 | info.
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| 292 | libc02.prf: Linked together from profiled enabled
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| 293 | libraries using kProfiler.
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| 294 | libc02.elh: Standard libc but linked with an external
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| 295 | electrical fence heap from kLibDbg.
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| 296 | These libc02.* dlls can be used instead of libc02.dll. kLibDbg
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| 297 | and kProfiler is available in separate zip files at same
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| 298 | location as the rest of the InnoTek GCC suite. However these
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| 299 | external tools are provided as is. (I might actually not find
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| 300 | time to put them out yet.)
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| 301 |
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| 302 | o Distribution is splitted into several zips:
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| 303 | -core.zip: All you really need.
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| 304 | -dbg.zip: Map files, unstripped tools and libs, and
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| 305 | libc02.elh.
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| 306 | -prf.zip: Profiling libraries and libc02.prf.
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| 307 | libc.zip: The runtime libraries. (included in core.)
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| 308 | The big zip is everything.
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| 309 |
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| 310 | v3.2.2 Alpha 3:
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| 311 | ---------------
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| 312 |
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| 313 | Primarily bugfixes.
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| 314 |
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| 315 | o Changed code generator for floating point truncations (double
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| 316 | to int casts and such) so PM can freely mess up the fpu status.
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| 317 |
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| 318 | o We were using the wrong float.h in two sense. We're now using
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| 319 | the correct one which includes all the PC defines and
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| 320 | prototypes.
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| 321 |
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| 322 | o Fixed a few issues with error defines and tcpip.
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| 323 | Note that some of the error defines have changed value in the
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| 324 | process so we could become compatible with the tcpip stack
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| 325 | and FreeBSD.
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| 326 |
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| 327 | o Corrected bugs in a number of headers.
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| 328 |
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| 329 | o Added more OS/2 prototypes and imports. There is still work
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| 330 | left on the header part,
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| 331 |
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| 332 | o Optimized emxomf debug info conversion.
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| 333 |
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| 334 | o Wrapped bsdselect for BSD 4.4 header mode to implement
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| 335 | bsdselect().
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| 336 |
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| 337 | o .... what did we forget...
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| 338 |
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| 339 |
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| 340 | v3.2.2 Alpha 2:
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| 341 | ---------------
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| 342 |
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| 343 | A few bugfixes and a couple of new features.
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| 344 |
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| 345 | o The TCP/IP headers and libraries scheme have been changed.
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| 346 | The default is the current OS/2 tcpip toolkit (BSD 4.4 based).
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| 347 | To target the older OS/2 tcpip stack (BSD 4.3 based) you must
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| 348 | define TCPV40HDRS before including any TCP/IP headers and make
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| 349 | sure usr/lib/tcpipv4 is searched before usr/lib (this is to
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| 350 | get the right libsocket). It is recommended to use the -D
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| 351 | compiler option for the define and either the LIBRARY_PATH or
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| 352 | the -L compiler/linker option for the library.
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| 353 |
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| 354 | o There are a couple of new and updated based on FreeBSD 5.1.
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| 355 | sys\stdint.h and inttypes.h (and a few internal once) are new.
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| 356 | sys\types.h and unistd.h are the ones most heavily updated.
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| 357 | We're working on getting the headers and libc in a better
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| 358 | shape standardwise to easy compatability and portability.
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| 359 |
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| 360 | o A infinite loop in emxomf has been fixed.
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| 361 |
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| 362 | o Linker error on sopen() has been corrected.
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| 363 |
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| 364 | o .... what did we forget...
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| 365 |
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| 366 |
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| 367 | v3.2.2 Alpha 1:
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| 368 | ---------------
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| 369 |
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| 370 | This is the first release from InnoTek, and it contains the InnoTek LIBC.
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| 371 | In addition to the new LIBC there is a number of other major changes:
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| 372 |
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| 373 | o Name mangling in OMF mode have changed.
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| 374 | Until this release emxomf used to pretty much strip one leading '_'
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| 375 | from symbols when converting them to omf. This is now longer done
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| 376 | chiefly in order to correctly support mangling calling conventions
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| 377 | like __stdcall and __cdecl. This change have the following side
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| 378 | effects:
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| 379 | - _System and __cdecl no longer produces the same names and hence
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| 380 | all OS/2 API which are _System must be declared as _System in
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| 381 | order to link.
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| 382 | - Assembly code might need an extra underscore to work, or
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| 383 | perhaps change the prototypes to _System.
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| 384 | - Global variables are prepended and underscore, so mixing VAC and
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| 385 | GCC, or accessing globals from asm, take care.
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| 386 | (MSC v6.0 does this too, so it's not any uncommon practise.)
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| 387 |
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| 388 | The OS/2 headers which are included are all updated to use _System.
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| 389 |
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| 390 | o TCPIP headers are updated a quite a bit to match the toolkit ones
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| 391 | and to reflect the fact that the new libc does not a having common
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| 392 | handle space for files and sockets. These changes aren't 100%
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| 393 | completed yet, and usage probably will uncover some issues left in
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| 394 | there. Also for the programmer there is the following changes in
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| 395 | the apis provided:
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| 396 | - TCPV40HDRS are supported and should work like with the toolkit
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| 397 | headers. It will alias all functions to tcpip40_ editions
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| 398 | (using #defines) so we get the right imports thru -llibsocket.
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| 399 | - There is no support for sockets in select(). To do select on
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| 400 | sockets you will have to use bsdselect() or os2_select().
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| 401 | bsdselect() is only available for TCPV40HDRS. For
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| 402 | !defined(TCPV40HDRS) fd_set is in the emx/bsd format and not the
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| 403 | OS/2 tcpip v5.0 format.
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| 404 | - Socket IOCTLs are not supported by the ioctl() libc function
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| 405 | because of the separate handle space for sockets. For sockets
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| 406 | so_ioctl() and os2_ioctl() are used. os2_ioctl() is not available
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| 407 | when TCPV40HDRS is defined. According to the tcpref in v5.0
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| 408 | so_ioctl() only supports BSD ioctls.
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| 409 | - writev() and readv() also clashes with libc. For socket handles
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| 410 | use so_writev() and so_readv().
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| 411 |
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| 412 | o The prefered OMF linker is now ilink. link386 will fail with an odd
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| 413 | error message if you tell gcc/g++ to make debug info. Set the
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| 414 | EMXOMFLD_LINKER environment variable to value ilink in order to use
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| 415 | ilink as OMF linker.
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| 416 | It likely that we will change the default OMF linker to ilink in an
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| 417 | later version of the GCC suite.
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| 418 |
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| 419 | o .... what did we forget...
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