install.texi: Update AIX information.
* doc/install.texi: Update AIX information. * README.RS6000: Remove obsolete file. From-SVN: r42154
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@ -1,3 +1,8 @@
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2001-05-16 David Edelsohn <edelsohn@gnu.org>
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* doc/install.texi: Update AIX information.
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* README.RS6000: Remove obsolete file.
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2001-05-16 Jakub Jelinek <jakub@redhat.com>
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Nathan Sidwell <nathan@codesourcery.com>
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@ -1,148 +0,0 @@
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AIX 4.3 archive libraries
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AIX 4.3 utilizes a new "large format" archive to support both 32-bit and
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64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1
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to parse archive libraries did not handle the new format correctly. These
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routines are used by GCC and result in error messages during linking such
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as "not a COFF file". The version of the routines shipped with AIX 4.3.1
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should work for a 32-bit environment. The "-g" option of the archive
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command may be used to create archives of 32-bit objects using the
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original "small format". A correct version of the routines is shipped
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with AIX 4.3.2.
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AIX 4.3.2 binder
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The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core
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with a segmentation fault when invoked by any version of GCC. A fix for
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APAR IX87327 will be available from IBM Customer Support.
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AIX 4.3.0 assembler
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The AIX 4.3.0.0 assembler generates incorrect object files if the ".bs"
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pseudo-op references symbols in certain sections. If GCC is invoked with
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the -g debugging option (including during bootstrapping), incorrect object
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files will be produced and the AIX linker will fail with a severe error.
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A fix for APAR IX74254 (64BIT DISASSEMBLED OUPUT FROM COMPILER FAILS TO
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ASSEMBLE/BIND) is available from IBM Customer Support and from its
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service.boulder.ibm.com website as PTF U453956.
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AIX 4.1 binder
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Some versions of the AIX binder (linker) can fail with a relocation
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overflow severe error when the -bbigtoc option is used to link
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GCC-produced object files into an executable that overflows the TOC.
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Linking f771, the GNU Fortran backend, will fail in this manner. A fix
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for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is
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available from IBM Customer Support and from its website as PTF U455193.
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Due to changes in the way that GCC invokes the binder (linker) for AIX 4.1,
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the link step now may produce warnings of duplicate symbols which were not
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reported before. The assembly files generated by GCC for AIX always have
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included multiple symbol definitions for certain global variable and
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function declarations in the original program. The warnings should not
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prevent the linker from producing a correct library or runnable executable.
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AIX NLS problems
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AIX on the RS/6000 provides support (NLS) for environments outside of
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the United States. Compilers and assemblers use NLS to support
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locale-specific representations of various objects including
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floating-point numbers ("." vs "," for separating decimal fractions).
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There have been problems reported where the library linked with GCC does
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not produce the same floating-point formats that the assembler accepts.
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If you have this problem, set the LANG environment variable to "C" or
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"En_US".
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AIX 3.2.5 XLC-1.3 problems
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XLC version 1.3.0.0 distributed with AIX 3.2.5 will miscompile jump.c when
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building the stage1 compiler during the bootstrap process. This will cause
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GCC to crash and the bootstrap to fail later while compiling libgcc2.c. XLC
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version 1.3.0.1 or later fixes this problem. XLC-1.3.0.19 also cannot
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bootstrap GCC so please avoid that release as well. You can obtain
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XLC-1.3.0.24 by requesting PTF 432238 from IBM, or just ask for the latest
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release of XLC-1.3.
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There also have been reports of problems bootstrapping GCC with some older
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releases of xlc-1.2.1, including xlc-1.2.1.8. Newer releases of xlc-1.2.1
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do not exhibit this problem: xlc-1.2.1.28 is known to bootstrap properly.
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AIX 3.2 common-mode support
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AIX common-mode providing transparent support of both the POWER and PowerPC
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architectures is usable in AIX 3.2.3 and above but an export file and
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support for hidden export via libc.a will not exist until AIX 4.1. libgcc.a
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also must be compiled in common-mode. Note that executables generated for
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the POWER (RIOS1 and RSC) architecture will run directly on systems using
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the MPC601 chip. Common-mode only improves the performance of a single
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executable run on both POWER and PowerPC architecture platforms by not using
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POWER- or PowerPC-specific instructions and eliminating the need to trap to
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emulation (for POWER instructions run on PowerPC).
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To link a common-mode application prior to AIX 4.1 and run it on a system at
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AIX level 3.2.3 or above, use the text between the "<>" as an export file
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(e.g. milli.exp)
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<><><><><><><><><><><>
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#!
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__mulh 0x3100
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__mull 0x3180
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__divss 0x3200
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__divus 0x3280
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__quoss 0x3300
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__quous 0x3380
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<><><><><><><><><><><>
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and then link with -Wl,-bI:milli.exp.
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AIX 3.1 and 3.2 assembler problems
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Specifying the -g flag to GCC on the RS/6000 requires upgrading the
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standard AIX assembler distributed with AIX 3.1 and versions of AIX
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3.2 earlier than 3.2.4 with a replacement that is available from IBM.
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Note that Makefile.in specifies the -g when compiling libgcc2.c.
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You can test for the presence of a fixed assembler by entering the following:
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% as -u < /dev/null
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If the command exits normally, the assembler fix already is installed.
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If the assembler complains that "-u" is an unknown flag, you need to order
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the fix.
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If you are running AIX 3.1 (lslpp -h bos.obj output reports
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03.01.0005.XXXX where the 0005 can be any higher number and the XXXX
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can be any value), call IBM Support at 800-237-5511 and ask for
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shipment of AIX/6000 fix PTF U403044 for APAR IX22829 (.extern foo
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conflicts with defining foo).
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If you are running AIX 3.2 but not 3.2.4 or later (lslpp -h bos.obj
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output reports 03.02.0000.0000), a newer update to the assembler fix
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is available. Ask for shipment of AIX/6000 fix PTF U416277 for
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IX32992 (.global prevents detection of duplicate symbol).
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If you are running AIX 3.2.4 or later, you already have the new
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assembler.
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Any customer can order and get the replacement assembler, and install it on
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one or more machines. It is available on diskette from IBM Customer Support
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and from its website.
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If you contact IBM Customer Support, they may also ask you for your customer
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number. If you do not know it, you will still be able to get the fix, but
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you will have to be persistent. IBM has corresponding support organizations
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outside of North America. Call your IBM branch office and ask them to put
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you in touch with the department that handles fixes for AIX/6000. If that
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doesn't work, ask for the department that handles software defect support
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for AIX/6000 and ask for the APAR fix.
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If you use the GNU assembler instead of the system supplied assembler, you need
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an assembler modified after October 16th, 1995 in order to build the GNU C
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compiler. This is because the GNU C compiler wants to build a variant of its
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library, libgcc.a with the -mcpu=common switch to support building programs
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that can run on either the Power or PowerPC machines.
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@ -33,7 +33,7 @@
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@settitle Installing GCC: Binaries
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@end ifset
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@comment $Id$
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@comment $Id: install.texi,v 1.1 2001/05/11 22:10:54 gerald Exp $
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@c Copyright (C) 2001 Free Software Foundation, Inc.
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@c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com
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@ -242,10 +242,10 @@ where @emph{srcdir} == @emph{objdir} should still work, but doesn't
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get extensive testing; building where @emph{objdir} is a subdirectory
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of @emph{srcdir} is unsupported.
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Second, when configuring a native system, either ``@command{cc}'' or
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``@command{gcc}'' must be in your path or you must set CC in your
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environment before running configure.
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Otherwise the configuration scripts may fail.
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Second, when configuring a native system, either ``@command{cc}'' or
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``@command{gcc}'' must be in your path or you must set @command{CC} in
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your environment before running configure. Otherwise the configuration
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scripts may fail.
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To configure GCC:
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@ -806,7 +806,14 @@ contact their makers.
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@itemize
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@item
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@uref{http://www-frec.bull.com/docs/download.htm,,AIX};
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AIX:
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@itemize
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@item
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@uref{http://www-frec.bull.com/docs/download.htm,,Bull's Freeware and Shareware Archive for AIX};
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@item
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@uref{http://aixpdlib.seas.ucla.edu,,UCLA Software Library for AIX};
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@end itemize
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@item
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DOS - @uref{http://www.delorie.com/djgpp/,,DJGPP};
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@ -1314,11 +1321,35 @@ compiled with the native C compiler and GCC. During the stage1 phase of
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the build, the native AIX compiler @strong{must} be invoked as "cc"
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(not "xlc"). Once @command{configure} has been informed of
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"xlc", one needs to use "make distclean" to remove the
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configure cache files and ensure that @command{$CC} environment variable
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configure cache files and ensure that @command{CC} environment variable
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does not provide a definition that will confuse @command{configure}.
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If this error occurs during stage2 or later, then the problem most likely
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is the version of Make (see above).
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Binutils 2.10 does not support AIX 4.3. Binutils available from the
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@uref{http://www-1.ibm.com/servers/aix/products/aixos/linux/,,AIX Toolbox for Linux: GNU and Open Source tools for AIX};
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website does work. Binutils 2.11 is expected to include AIX 4.3
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support. The GNU Assembler is necessary for libstdc++ to build. The
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AIX native ld still is recommended. The native AIX tools do
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interoperate with GCC.
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Linking executables and shared libraries may produce warnings of
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duplicate symbols. The assembly files generated by GCC for AIX always
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have included multiple symbol definitions for certain global variable
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and function declarations in the original program. The warnings should
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not prevent the linker from producing a correct library or runnable
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executable.
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AIX 4.3 utilizes a "large format" archive to support both 32-bit and
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64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1
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to parse archive libraries did not handle the new format correctly.
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These routines are used by GCC and result in error messages during
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linking such as "not a COFF file". The version of the routines shipped
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with AIX 4.3.1 should work for a 32-bit environment. The @option{-g}
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option of the archive command may be used to create archives of 32-bit
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objects using the original "small format". A correct version of the
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routines is shipped with AIX 4.3.2.
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Some versions of the AIX binder (linker) can fail with a relocation
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overflow severe error when the @option{-bbigtoc} option is used to link
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GCC-produced object files into an executable that overflows the TOC. A fix
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@ -1327,20 +1358,11 @@ available from IBM Customer Support and from its
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@uref{http://service.boulder.ibm.com/,,service.boulder.ibm.com}
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website as PTF U455193.
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Binutils does not support AIX 4.3 (at least through release 2.9).
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GNU as and GNU ld will not work properly and one should not configure GCC
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to use those GNU utilities. Use the native AIX tools which do interoperate
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with GCC.
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AIX 4.3 utilizes a new "large format" archive to support both
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32-bit and 64-bit object modules. The routines provided in AIX 4.3.0 and
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AIX 4.3.1 to parse archive libraries did not handle the new format correctly.
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These routines are used by GCC and result in error messages during linking
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such as "not a COFF file". The version of the routines shipped
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with AIX 4.3.1 should work for a 32-bit environment. The @option{-g} option
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of the archive command may be used to create archives of 32-bit objects
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using the original "small format". A correct version of the routines is
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shipped with AIX 4.3.2.
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The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core
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with a segmentation fault when invoked by any version of GCC. A fix for
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APAR IX87327 is available from IBM Customer Support and from its
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@uref{http://service.boulder.ibm.com/,,service.boulder.ibm.com}
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website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above.
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The initial assembler shipped with AIX 4.3.0 generates incorrect object
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files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS
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@ -1348,11 +1370,13 @@ TO ASSEMBLE/BIND) is available from IBM Customer Support and from its
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@uref{http://service.boulder.ibm.com/,,service.boulder.ibm.com}
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website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above.
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The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core
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with a segmentation fault when invoked by any version of GCC. A fix for
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APAR IX87327 is available from IBM Customer Support and from its
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@uref{http://service.boulder.ibm.com/,,service.boulder.ibm.com}
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website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above.
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AIX provides National Language Support (NLS). Compilers and assemblers
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use NLS to support locale-specific representations of various data
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formats including floating-point numbers (e.g., "." vs "," for
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separating decimal fractions). There have been problems reported where
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GCC does not produce the same floating-point formats that the assembler
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expects. If one encouters this problem, set the @command{LANG}
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environment variable to "C" or "En_US".
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@html
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