From e4b0d7b3c21caad3f274efa299c985f8c4e7093e Mon Sep 17 00:00:00 2001 From: David Edelsohn Date: Wed, 18 Feb 1998 07:12:15 -0500 Subject: [PATCH] add AIX 4.3 assembler bug and reorder items. From-SVN: r18074 --- gcc/README.RS6000 | 114 +++++++++++++++++++++++++--------------------- 1 file changed, 63 insertions(+), 51 deletions(-) diff --git a/gcc/README.RS6000 b/gcc/README.RS6000 index d29604f968a..6507633ce2e 100644 --- a/gcc/README.RS6000 +++ b/gcc/README.RS6000 @@ -1,51 +1,25 @@ - AIX 3.1 and 3.2 assembler problems + AIX 4.3 assembler -Specifying the -g flag to GCC on the RS/6000 requires upgrading the -standard AIX assembler distributed with AIX 3.1 and versions of AIX -3.2 earlier than 3.2.4 with a replacement that is available from IBM. -Note that Makefile.in specifies the -g when compiling libgcc2.c. - -You can test for the presence of a fixed assembler by entering the following: - % as -u < /dev/null -If the command exits normally, the assembler fix already is installed. -If the assembler complains that "-u" is an unknown flag, you need to order -the fix. - -If you are running AIX 3.1 (lslpp -h bos.obj output reports -03.01.0005.XXXX where the 0005 can be any higher number and the XXXX -can be any value), call IBM Support at 800-237-5511 and ask for -shipment of AIX/6000 fix PTF U403044 for APAR IX22829 (.extern foo -conflicts with defining foo). - -If you are running AIX 3.2 but not 3.2.4 or later (lslpp -h bos.obj -output reports 03.02.0000.0000), a newer update to the assembler fix -is available. Ask for shipment of AIX/6000 fix PTF U416277 for -IX32992 (.global prevents detection of duplicate symbol). - -If you are running AIX 3.2.4 or later, you already have the new -assembler. +The AIX 4.3.0.0 assembler generates incorrect object files if the ".bs" +pseudo-op references symbols in certain sections. If GCC is invoked with +the -g debugging option (including during bootstrapping), incorrect object +files will be produced and the AIX linker will fail with a severe error. +A fix for APAR IX74254 (64BIT DISASSEMBLED OUPUT FROM COMPILER FAILS TO +ASSEMBLE/BIND) is available from IBM Customer Support and IBM's +service.boulder.ibm.com website. -Any customer can order and get the replacement assembler, and install it on -one or more machines. It is available on diskette from IBM Customer Support -and from the IBM Internet fix anonymous ftp server (FixDist) at -aix.boulder.ibm.com (198.17.57.66). -If you contact IBM Customer Support, they may also ask you for your customer -number. If you do not know it, you will still be able to get the fix, but -you will have to be persistent. IBM has corresponding support organizations -outside of North America. Call your IBM branch office and ask them to put -you in touch with the department that handles fixes for AIX/6000. If that -doesn't work, ask for the department that handles software defect support -for AIX/6000 and ask for the APAR fix. + AIX 4.1 binder -If you use the GNU assembler instead of the system supplied assembler, you need -an assembler modified after October 16th, 1995 in order to build the GNU C -compiler. This is because the GNU C compiler wants to build a variant of its -library, libgcc.a with the -mcpu=common switch to support building programs -that can run on either the Power or PowerPC machines. +Due to changes in the way that GCC invokes the binder (linker) for AIX 4.1, +the link step now may produce warnings of duplicate symbols which were not +reported before. The assembly files generated by GCC for AIX always have +included multiple symbol definitions for certain global variable and +function declarations in the original program. The warnings should not +prevent the linker from producing a correct library or runnable executable. - AIX NLS problems + AIX NLS problems AIX on the RS/6000 provides support (NLS) for environments outside of the United States. Compilers and assemblers use NLS to support @@ -56,7 +30,7 @@ not produce the same floating-point formats that the assembler accepts. If you have this problem, set the LANG environment variable to "C" or "En_US". - + AIX 3.2.5 XLC-1.3 problems XLC version 1.3.0.0 distributed with AIX 3.2.5 will miscompile jump.c when @@ -72,7 +46,7 @@ releases of xlc-1.2.1, including xlc-1.2.1.8. Newer releases of xlc-1.2.1 do not exhibit this problem: xlc-1.2.1.28 is known to bootstrap properly. - AIX 3.2 common-mode support + AIX 3.2 common-mode support AIX common-mode providing transparent support of both the POWER and PowerPC architectures is usable in AIX 3.2.3 and above but an export file and @@ -101,11 +75,49 @@ __quous 0x3380 and then link with -Wl,-bI:milli.exp. - AIX 4.1 binder + AIX 3.1 and 3.2 assembler problems + +Specifying the -g flag to GCC on the RS/6000 requires upgrading the +standard AIX assembler distributed with AIX 3.1 and versions of AIX +3.2 earlier than 3.2.4 with a replacement that is available from IBM. +Note that Makefile.in specifies the -g when compiling libgcc2.c. + +You can test for the presence of a fixed assembler by entering the following: + % as -u < /dev/null +If the command exits normally, the assembler fix already is installed. +If the assembler complains that "-u" is an unknown flag, you need to order +the fix. + +If you are running AIX 3.1 (lslpp -h bos.obj output reports +03.01.0005.XXXX where the 0005 can be any higher number and the XXXX +can be any value), call IBM Support at 800-237-5511 and ask for +shipment of AIX/6000 fix PTF U403044 for APAR IX22829 (.extern foo +conflicts with defining foo). + +If you are running AIX 3.2 but not 3.2.4 or later (lslpp -h bos.obj +output reports 03.02.0000.0000), a newer update to the assembler fix +is available. Ask for shipment of AIX/6000 fix PTF U416277 for +IX32992 (.global prevents detection of duplicate symbol). + +If you are running AIX 3.2.4 or later, you already have the new +assembler. + +Any customer can order and get the replacement assembler, and install it on +one or more machines. It is available on diskette from IBM Customer Support +and from the IBM Internet fix anonymous ftp server (FixDist) at +aix.boulder.ibm.com (198.17.57.66). + +If you contact IBM Customer Support, they may also ask you for your customer +number. If you do not know it, you will still be able to get the fix, but +you will have to be persistent. IBM has corresponding support organizations +outside of North America. Call your IBM branch office and ask them to put +you in touch with the department that handles fixes for AIX/6000. If that +doesn't work, ask for the department that handles software defect support +for AIX/6000 and ask for the APAR fix. + +If you use the GNU assembler instead of the system supplied assembler, you need +an assembler modified after October 16th, 1995 in order to build the GNU C +compiler. This is because the GNU C compiler wants to build a variant of its +library, libgcc.a with the -mcpu=common switch to support building programs +that can run on either the Power or PowerPC machines. -Due to changes in the way that GCC invokes the binder (linker) for AIX 4.1, -the link step now may produce warnings of duplicate symbols which were not -reported before. The assembly files generated by GCC for AIX always have -included multiple symbol definitions for certain global variable and -function declarations in the original program. The warnings should not -prevent the linker from producing a correct library or runnable executable. -- 2.30.2