[SOLVED] automake, Makefile.am how to make both 32 and 64 bit executable?

MrUmunhum · 12-22-2016, 11:56 PM

Hi group,
I would like to use automake to crate a Makefile that generates both 32 and 64 bit executable. My Makefile.am looks like this:

Code:

# src/event/Makefile.am
AM_CFLAGS     = --pedantic -Wall -std=c99 -O2
AM_LDFLAGS    =
bin_PROGRAMS  = event.x64
event_x64_SOURCES = event.c
AM_LDFLAGS    = -m32
bin_PROGRAMS  = event.x32
event_x32_SOURCES = event.c

But I get this error running make:

Code:

/usr/bin/ld: i386:x86-64 architecture of input file `event.o' is incompatible with i386 output
/usr/bin/ld: event.o: file class ELFCLASS64 incompatible with ELFCLASS32
/usr/bin/ld: final link failed: File in wrong format
collect2: error: ld returned 1 exit status

I am assuming I need a way to clean up before the second compile?

Any ideas?

Thanks for your time.

Brains · 12-23-2016, 01:24 AM

Perhaps a separate makefile for each?

MrUmunhum · 12-24-2016, 02:35 PM

Quote:

Originally Posted by Brains

Perhaps a separate makefile for each?

Yes, that will work but I would like to use just one source file since they be the same.

MrUmunhum · 12-24-2016, 04:54 PM

I noticed an error in my Makefile.am:

Code:

AM_LDFLAGS should have been AM_CFLAGS

That does not resoluve my request.

Brains · 12-24-2016, 05:58 PM

Although I haven't tried it, can't see why it wouldn't work.

In short:
You may be able to add the "make install" command at the bottom of the first makefile followed by the "make clean" command, followed by a command executing the second makefile which can repeat "make install" and "make clean" after it's done.

MrUmunhum · 01-03-2017, 07:39 PM

I found the answer to my post which involves creating a sub-makefile.am for each compile:

Code:

 # src/event/Makefile.am
AM_LDLAGS  = --Pedantic -Wall -Std=C99 -O2
bin_PROGRAMS =
include x64.am
include arm.am
include i686.am
---------------------------------------
# src/event/x64.am
bin_PROGRAMS      += event_x64
event_x64_SOURCES  =  event.c
event_x64_CFLAGS   = -m64
---------------------------------------
# src/event/i686.am
bin_PROGRAMS       += event_i686
event_i686_SOURCES  =  event.c
event_i686_CFLAGS   = -m32
---------------------------------------
# src/event/arm.am
bin_PROGRAMS      += event_arm
event_arm_SOURCES  =  event.c
event_arm_CFLAGS   = -DARM
event_arm_CC       =  arm-linux-gnu-gcc
AM_CC              =  arm-linux-gnu-gcc

This solved my original question, so I marking this post solved. It does bring up a new question. Apparently Automake does not allow changing the compiler? The make runs but the output is not what I expected:

Code:

make[2]: Entering directory '/src/RHID/src/event'
gcc -DPACKAGE_NAME=\"event.c\ \" -DPACKAGE_TARNAME=\"event-c-\" -DPACKAGE_VERSION=\"1.0\" -DPACKAGE_STRING=\"event.c\ \ 1.0\" -DPACKAGE_BUGREPORT=\"MrUmunhum@cruzio.com\ \" -DPACKAGE_URL=\"\" -DPACKAGE=\"event-c-\" -DVERSION=\"1.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_FCNTL_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_UNISTD_H=1 -DHAVE_LOCALTIME_R=1 -DHAVE_MEMSET=1 -DHAVE_SELECT=1 -DHAVE_STRERROR=1 -I.    -m64 -g -O2 -MT event_x64-event.o -MD -MP -MF .deps/event_x64-event.Tpo -c -o event_x64-event.o `test -f 'event.c' || echo './'`event.c
mv -f .deps/event_x64-event.Tpo .deps/event_x64-event.Po
gcc -m64 -g -O2   -o event_x64 event_x64-event.o  
gcc -DPACKAGE_NAME=\"event.c\ \" -DPACKAGE_TARNAME=\"event-c-\" -DPACKAGE_VERSION=\"1.0\" -DPACKAGE_STRING=\"event.c\ \ 1.0\" -DPACKAGE_BUGREPORT=\"MrUmunhum@cruzio.com\ \" -DPACKAGE_URL=\"\" -DPACKAGE=\"event-c-\" -DVERSION=\"1.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_FCNTL_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_UNISTD_H=1 -DHAVE_LOCALTIME_R=1 -DHAVE_MEMSET=1 -DHAVE_SELECT=1 -DHAVE_STRERROR=1 -I.    -DARM -g -O2 -MT event_arm-event.o -MD -MP -MF .deps/event_arm-event.Tpo -c -o event_arm-event.o `test -f 'event.c' || echo './'`event.c
mv -f .deps/event_arm-event.Tpo .deps/event_arm-event.Po
gcc -DARM -g -O2   -o event_arm event_arm-event.o  
gcc -DPACKAGE_NAME=\"event.c\ \" -DPACKAGE_TARNAME=\"event-c-\" -DPACKAGE_VERSION=\"1.0\" -DPACKAGE_STRING=\"event.c\ \ 1.0\" -DPACKAGE_BUGREPORT=\"MrUmunhum@cruzio.com\ \" -DPACKAGE_URL=\"\" -DPACKAGE=\"event-c-\" -DVERSION=\"1.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_FCNTL_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_UNISTD_H=1 -DHAVE_LOCALTIME_R=1 -DHAVE_MEMSET=1 -DHAVE_SELECT=1 -DHAVE_STRERROR=1 -I.    -m32 -g -O2 -MT event_i686-event.o -MD -MP -MF .deps/event_i686-event.Tpo -c -o event_i686-event.o `test -f 'event.c' || echo './'`event.c
mv -f .deps/event_i686-event.Tpo .deps/event_i686-event.Po
gcc -m32 -g -O2   -o event_i686 event_i686-event.o  
make[2]: Leaving directory '/src/RHID/src/event'

According to the man page gcc is suppose to support cross arm compiles with the -marm but it fails. And Automake is not overriding the CC option.