On Sun, Jun 11, 2023 at 2:31 PM Kai Ruottu <kai.ruottu@xxxxxxxxxxx> wrote: > Randy Galbraith via Gcc-help kirjoitti 11.6.2023 klo 15.26: > > Hello GCC community. > > > > I am looking for help building GCC 4.9.2 (also tried 4.9.4 and 5.4.0) on > > IBM AIX Unix 7.1. Each attempt freezes during the run of build/genmddeps. > > This appears to be related to two ld warnings: > > > > ld: 0711-768 WARNING: Object build/genmddeps.o, section 1, function > .ferror: > > The branch at address 0x3cc is not followed by a recognized > > no-op > > or TOC-reload instruction. The unrecognized instruction is > > 0x7C691B78. > > > > ld: 0711-768 WARNING: Object build/genmddeps.o, section 1, function > .ferror: > > The branch at address 0x3cc is not followed by a recognized > > no-op > > or TOC-reload instruction. The unrecognized instruction is > > 0x7C691B78. > > > > The compile/link of genmddeps was this: > > > > g++ -g -DIN_GCC -fno-exceptions -fno-rtti > -fasynchronous-unwind-tables > > -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format > > -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros > > -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE > > -static-libstdc++ -static-libgcc -Wl,-bbigtoc -Wl,-bmaxdata:0x40000000 -o > > build/genmddeps \ > > build/genmddeps.o build/read-md.o build/errors.o > > ../../build-powerpc-ibm-aix7.1.0.0/libiberty/libiberty.a > So you have the link command via the g++ compiler driver here... > If you add the '-v' option into it you and others will see which linker > was used. > So please try this command in the build directory : > > g++ -v -g -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables \ > -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format \ > -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros \ > -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H -DGENERATOR_FILE \ > -static-libstdc++ -static-libgcc -Wl,-bbigtoc -Wl,-bmaxdata:0x40000000 \ > -o build/genmddeps \ > build/genmddeps.o build/read-md.o build/errors.o \ > ../../build-powerpc-ibm-aix7.1.0.0/libiberty/libiberty.a > > Is the 'ld' one from the GNU binutils possible nowadays? Maybe it works... > > If the GNU binutils could be used then also cross-compiling things for > IBM AIX Unix 7.1 > could be tried - others could try get the same $target compiler for > their Linux etc hosts. > These "gen*" things will be built for the $build system and be run in it > to generate stuff > to be compiled for the $host system. They may succeed on a cross host > but not on the > native IBM AIX host. > > But I remember also getting the "proprietary" standard C library for IBM > AIX being a problem. > It being copyrighted and not being available for others, only for those > who own the IBM AIX > target system. > Hi Kai. When I add -v to g++ I see it runs collect2. When I capture the collect2 command and add -v to it, I can see it runs /usr/bin/ld. So IBM's "ld" is being called. Thanks for that suggestion nonetheless since it reveals lots of details. Cheers, -Randy
