Alma Linux 32-Bit ISO Image

Development HQ
1

Do we have Alma Linux 32-Bit ISO Image for building 32-Bit RPM.
How do we build 32-Bit RPMs of Alma Linux when we don’t have “Alma Linux 32-Bit ISO Image”

2 
dnf list *.i686

The repositories of 64-bit Alma do contain some packages that contain 32-bit binaries. Mostly libraries, so that 32-bit binaries can be dynamically linked at runtime and run on 64-bit Alma.

Those 32-bit RPMs have been compiled with 64-bit compiler on 64-bit system, just like MS C/C++ compilers did remain 32-bit executables long after they were already used to generate 64-bit programs. Windows and ARM executables can be cross-compiled on Linux too, IIRC.

man gcc writes:

   These -m switches are supported in addition to the above on x86-64 processors in 64-bit environments.
   -m32
   -m64
   -mx32
   -m16
   -miamcu
       Generate code for a 16-bit, 32-bit or 64-bit environment.  The -m32 option sets "int", "long", and pointer types to 32 bits, and generates code that runs on any i386 system.
       The -m64 option sets "int" to 32 bits and "long" and pointer types to 64 bits, and generates code for the x86-64 architecture.  For Darwin only the -m64 option also turns off the -fno-pic and -mdynamic-no-pic options.
       The -mx32 option sets "int", "long", and pointer types to 32 bits, and generates code for the x86-64 architecture.
       The -m16 option is the same as -m32, except for that it outputs the ".code16gcc" assembly directive at the beginning of the assembly output so that the binary can run in 16-bit mode.
       The -miamcu option generates code which conforms to Intel MCU psABI.  It requires the -m32 option to be turned on.

However, what is the actual goal?

  • To compile legacy code into 32-bit executable so that it can be run on (64-bit) Alma?
    Install necessary *.i686 library packages and adjust compiler/rpmbuild options (if necessary).
  • To generate packages for 32-bit Alma that apparently does not exist?
1 Like
3

for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/8/libstdc++.so when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-redhat-linux/8/libstdc++.a when searching for -lstdc++
/usr/bin/ld: cannot find -lstdc++
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:499: libFLAC++.la] Error 1
make[3]: Leaving directory ‘/root/COLLAB_ALMA/32_bit/flac/BUILD/flac-1.3.2/src/libFLAC++’
make[2]: *** [Makefile:428: all-recursive] Error 1
make[2]: Leaving directory ‘/root/COLLAB_ALMA/32_bit/flac/BUILD/flac-1.3.2/src’
make[1]: *** [Makefile:484: all-recursive] Error 1
make[1]: Leaving directory ‘/root/COLLAB_ALMA/32_bit/flac/BUILD/flac-1.3.2’
make: *** [Makefile:416: all] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.EorQue (%build)

Please reply where to add -m32 flag to solve this issue

4

you have to easy choice
you install en vm qemu with centos 7 on board and you built
you use a docker and a official centos 7 and you export the volume to your pc

5

You did not say what you need those packages for.

You are not building as root user, are you? Always build as regular user.

I don’t build packages, but apparently mock is the recommended tool and it has configs to get proper 32-bit build environment.

6

Hi jlehtone,

Which config is needed for building Alma 32-Bit RPM.
Can you please mention the name of mock config which is used for building 32-bit RPM