[Solved] Qt 5.4.1 for AM335x

SGaist

Hi and welcome to devnet,

What cross-compiler are you using ?

What mkspec is it ?

chad

Hello!

Thanks the reply and the welcome, I'm fairly new to Qt development (around 1 year).

I am cross compiling using arm-linux-gnueabi, specificially gcc and g++.

Mkspec is linux-am335x-g++

Here's a copy of my mkspec:

MAKEFILE_GENERATOR = UNIX
CONFIG += incremental gdb_dwarf_index
QMAKE_INCREMENTAL_STYLE = sublib

include(../common/linux.conf)
include(../common/gcc-base-unix.conf)
include(../common/g++-unix.conf)

#clearly define which compiler we are using
QMAKE_CC = $TARGET-gcc
QMAKE_CXX = $TARGET-g++
QMAKE_LINK = $TARGET-g++
QMAKE_LINK_SHLIB = $TARGET-g++
QMAKE_AR = $ARM_TOOLS_PATH/$TARGET-ar cqs
QMAKE_OBJCOPY = $ARM_TOOLS_PATH/$TARGET-objcopy
QMAKE_STRIP = $ARM_TOOLS_PATH/$TARGET-strip

#tunes the application for this architecture and floating point unit
QMAKE_CFLAGS_RELEASE = -O3 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp
QMAKE_CXXFLAGS_RELEASE = -O3 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp

#points the QT cross-compile to the correct libraries
QMAKE_INCDIR = $ROOTFS_PATH/usr/include
QMAKE_LIBDIR = $ROOTFS_PATH/usr/lib

#to make AT projects compile correctly by dereferencing this project
QMAKE_INCDIR_QT = $ROOTFS_PATH/usr/include
QMAKE_LIBDIR_QT = $ROOTFS_PATH/usr/lib
QMAKE_LFLAGS += -Wl,--rpath=$ROOTFS_PATH/usr/lib -Wl,--rpath=$ROOTFS_PATH/lib -lgthread-2.0 -lglib-2.0 -lz

#QMAKE_LFLAGS += --verbose -Wl,--verbose=10

load(qt_config)

Sorry if I misunderstood any of your questions, if I did just let me know and I'll do my best to get the correct information.

Thanks again!

SGaist

What is the value of $TARGET ?

chad

The value of $TARGET is arm-linux-gnueabi

SGaist

And the value of $QTMKSPECDIR ?

chad

The value of $QTMKSPECDIR is linux-am335x-g++

SGaist

IIRC, you should rather set the common C and CXX flags in QMAKE_CFLAGS and QMAKE_CXXFLAGS rather than in the release configuration only.

Something like:

COMPILER_FLAGS = -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp
QMAKE_CFLAGS += $${COMPILER_FLAGS}
QMAKE_CXXFLAGS += $${COMPILER_FLAGS}
QMAKE_CFLAGS_RELEASE += -O3

chad

Thanks SGaist,

I'm going to try compiling this with the changes now.

Hopefully this fixes it.

chad

@SGaist said:

IIRC, you should rather set the common C and CXX flags in QMAKE_CFLAGS and QMAKE_CXXFLAGS rather than in the release configuration only.

Something like:
COMPILER_FLAGS = -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp
QMAKE_CFLAGS += $${COMPILER_FLAGS}
QMAKE_CXXFLAGS += $${COMPILER_FLAGS}
QMAKE_CFLAGS_RELEASE += -O3

This worked!

Thank you very much!!

SGaist

You're welcome !

Don't forget to mark the thread as solved (in the Topic Tools Button)

Happy coding !

chad

@SGaist Hmm... it just has delete topic as an option?

SGaist

Strange, you should contact @tekojo about that

tekojo

Strange, OP should have Mark as solved as an option. I'll take a look.

tekojo

Figured it out.
The 'mark as solved' option is there for people with admin rights, as the functionality relies on the admin 'rename post' function.

For a thread OP to mark a post, he/she needs to add [solved] to the title.

I'll take a look at the plugin that adds the thread tool option to see if it could work with normal OP rights too.