source: trunk/doc/ReleaseNotes.os2@ 845

Last change on this file since 845 was 845, checked in by bird, 22 years ago

Beta3 fix 1.

  • Property cvs2svn:cvs-rev set to 1.10
  • Property svn:eol-style set to native
  • Property svn:executable set to *
  • Property svn:keywords set to Author Date Id Revision
File size: 9.3 KB
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1
2
3 R e l e a s e N o t e s
4 +------------------------+
5
6v3.2.2 Beta 3 Fix 1:
7--------------------
8
9 Fixes to LIBC:
10
11 o Crash if calloc was called before main().
12
13 o TZ parsing of timezones such as PST8EDT.
14
15 o sigsetjmp() and siglongjmp() visibility.
16
17
18v3.2.2 Beta 3:
19--------------
20
21 A few new features and fixes.
22
23 o Fixed a bunch of debug info problems.
24
25 o Added large file file support.
26
27 o Enabled high memory suppor for LIBC. Two new option to GCC -Zhigh-mem
28 and -Zhigh-low. If the program is enabled for high memory use
29 -Zhigh-mem when linking.
30
31 Note. that socket is not enabled yet.
32
33 o Made LIBC preserve the FS selector.
34
35 o Added random() and *rand48() from BSD.
36
37 o Fixed crash with link386 and unresolved symbols.
38
39 o A few other problem which is mentioned in the change log.
40
41
42v3.2.2 Beta 2:
43--------------
44
45 A few bugfixes and a some new features (as usual).
46
47 o Added file locking support to LIBC.
48
49 o Fixed _System and _Optlink bugs and made _Optlink support floating
50 point arguments passing in registers.
51
52 o Header updates related to limits and file locking primarily.
53
54 o Timezone fixes.
55
56 o Fixed some CRT init trouble in regards to getenv and putenv.
57
58 o And some other minor stuff..
59
60
61v3.2.2 Beta 1:
62--------------
63
64 A few bugfixes and a some new features.
65
66 o Locale support in libc.
67
68 o Implmented a different approach to OMF and weak symbols. This new hack
69 does a pre-linking before invoking the OMF linker generating new .def
70 if needed and an extra object file with aliases to resolv the weak
71 symbols correctly.
72 The old approach used when GCC_WEAKSYMS is present in the environment.
73
74 Please note that due to a bug in BFD weak symbols doesn't work 100%
75 correctly. This will be addressed when we now move on to a later
76 version of binutils.
77
78 o A couple of new functions in libc, and a few correction of existing
79 in respect to namespace.
80
81 o Addressed issues with calling conventions. We now detect incompatible
82 calling conventions, emitting warnings and errors where appropritate.
83
84 o _Optlink is much better, but there is still some issues left. Passing
85 prototyped floating point parameters to _Optlink doesn't work. Mixing
86 of parameters which goes into registers (eax,edx,ecx) and parameters
87 which doesn't - void foo(int eax, struct sss s, int edx) - don't work.
88 All these issues are being addressed and is expected to be fixed in
89 the next build.
90
91 o Changed GCC to link with shared libc by default. This means that in
92 order to link with static libc one have to specify -static.
93 It also means that -Zmtd or -Zcrtdll is no longer required for linking
94 with shared libc and can be removed from all makescripts.
95
96 o Changed EMXOMFLD defaults to ilink from Visual Age for C++ v3.6.5 or
97 later (preferably later). The emxomfld usage output will instruct you
98 how how to use older linkers. For VAC308 and VAC365 linkers /dbgpack
99 is specified if debuginfo is to be generated.
100 Emxomf checks for EMXOMFLD_TYPE=link386 when choosing debug info level.
101
102 o Shipping three extra libc dlls:
103 libc02.dbg: Unstripped version of libc02.dll. This is identical
104 except from the presense of debug info.
105 libc02.prf: Linked together from profiled enabled libraries
106 using kProfiler.
107 libc02.elh: Standard libc but linked with an external eletrical
108 fence heap from kLibDbg.
109 These libc02.* dlls can be used instead of libc02.dll. kLibDbg and
110 kProfiler is available in separate zip files at same location as the
111 rest of the Innotek GCC suite. However these external tools are
112 provided as is. (I might actually not find time to put them out yet.)
113
114 o Distribution is splitted into several zips:
115 -core.zip: All you really need.
116 -dbg.zip: Map files, unstripped tools and libs, and libc02.elh.
117 -prf.zip: Profiling libraries and libc02.prf.
118 libc.zip: The runtime libraries. (included in core.)
119 The big zip is everything.
120
121 o I'm sure I've foregotten something this time....
122
123
124v3.2.2 Alpha 3:
125---------------
126
127 Primarily bugfixes.
128
129 o Changed code generator for floating point truncations (double to int
130 casts and such) so PM can freely mess up the fpu status.
131
132 o We were using the wrong float.h in two sense. We're now using the
133 correct one which includes all the PC defines and prototypes.
134
135 o Fixed a few issues with error defines and tcpip.
136 Note that some of the error defines have changed value in the process
137 so we could become compatible with the tcpip stack and FreeBSD.
138
139 o Corrected bugs in a number of headers.
140
141 o Added more OS/2 prototypes and imports. There is still work left on
142 the header part,
143
144 o Optimized emxomf debug info conversion.
145
146 o Wrapped bsdselect for BSD 4.4 header mode to implement bsdselect().
147
148 o .... what did we forget...
149
150
151v3.2.2 Alpha 2:
152---------------
153
154 A few bugfixes and a couple of new features.
155
156 o The TCP/IP headers and libraries scheme have been changed.
157 The default is the current OS/2 tcpip toolkit (BSD 4.4 based).
158 To target the older OS/2 tcpip stack (BSD 4.3 based) you must
159 define TCPV40HDRS before including any TCP/IP headers and make
160 sure usr/lib/tcpipv4 is searched before usr/lib (this is to get
161 the right libsocket). It is recommended to use the -D compiler
162 option for the define and either the LIBRARY_PATH or the -L
163 compiler/linker option for the library.
164
165 o There are a couple of new and updated based on FreeBSD 5.1.
166 sys\stdint.h and inttypes.h (and a few internal once) are new.
167 sys\types.h and unistd.h are the ones most heavily updated.
168 We're working on getting the headers and libc in a better shape
169 standardwise to easy compatability and portability.
170
171 o A infinite loop in emxomf has been fixed.
172
173 o Linker error on sopen() has been corrected.
174
175 o .... what did we forget...
176
177
178v3.2.2 Alpha 1:
179---------------
180
181 This is the first release from Innotek, and it contains the Innotek LIBC.
182 In addition to the new LIBC there is a number of other major changes:
183
184 o Name mangling in OMF mode have changed.
185 Until this release emxomf used to pretty much strip one leading '_'
186 from symbols when converting them to omf. This is now longer done
187 chiefly in order to correctly support mangling calling conventions
188 like __stdcall and __cdecl. This change have the following side
189 effects:
190 - _System and __cdecl no longer produces the same names and hence
191 all OS/2 API which are _System must be declared as _System in
192 order to link.
193 - Assembly code might need an extra underscore to work, or
194 perhaps change the prototypes to _System.
195 - Global variables are prepended and underscore, so mixing VAC and
196 GCC, or accessing globals from asm, take care.
197 (MSC v6.0 does this too, so it's not any uncommon practise.)
198
199 The OS/2 headers which are included are all updated to use _System.
200
201 o TCPIP headers are updated a quite a bit to match the toolkit ones
202 and to reflect the fact that the new libc does not a having common
203 handle space for files and sockets. These changes aren't 100%
204 completed yet, and usage probably will uncover some issues left in
205 there. Also for the programmer there is the following changes in
206 the apis provided:
207 - TCPV40HDRS are supported and should work like with the toolkit
208 headers. It will alias all functions to tcpip40_ editions
209 (using #defines) so we get the right imports thru -llibsocket.
210 - There is no support for sockets in select(). To do select on
211 sockets you will have to use bsdselect() or os2_select().
212 bsdselect() is only available for TCPV40HDRS. For
213 !defined(TCPV40HDRS) fd_set is in the emx/bsd format and not the
214 OS/2 tcpip v5.0 format.
215 - Socket IOCTLs are not supported by the ioctl() libc function
216 because of the separate handle space for sockets. For sockets
217 so_ioctl() and os2_ioctl() are used. os2_ioctl() is not available
218 when TCPV40HDRS is defined. According to the tcpref in v5.0
219 so_ioctl() only supports BSD ioctls.
220 - writev() and readv() also clashes with libc. For socket handles
221 use so_writev() and so_readv().
222
223 o The prefered OMF linker is now ilink. link386 will fail with an odd
224 error message if you tell gcc/g++ to make debug info. Set the
225 EMXOMFLD_LINKER environment variable to value ilink in order to use
226 ilink as OMF linker.
227 It likely that we will change the default OMF linker to ilink in an
228 later version of the GCC suite.
229
230 o .... what did we forget...
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