[Buildroot] Standalone toolchain

[Buildroot] Standalone toolchain

[Hinko Kocevar]

Hi,

Is it possible to create a toolchain and then transfer it to another machine or just another folder, and have it work?

I've experienced the case where I only transferred staging_dir and put it somewhere and when I tried compiling some software compiler was lacking some header files. Creating absolute path link to newly created toolchain dir to point to staging_dir where it was taken from solved the problem..

Thank you,
Hinko

-- 
?ETRTA POT, d.o.o., Kranj
Planina 3
4000 Kranj
Slovenia, Europe
Tel. +386 (0) 4 280 66 03
E-mail: hinko.kocevar at cetrtapot.si
Http: www.cetrtapot.si

[Buildroot] Standalone toolchain

[Bernhard Reutner-Fischer]

On Wed, Sep 24, 2008 at 03:14:47PM +0200, Hinko Kocevar wrote:
>Hi,
>
>Is it possible to create a toolchain and then transfer it to another machine or just another folder, and have it work?

This is supposed to work, yes. The keyword is sysroot support.
Either configure your BR2_STAGING_DIR to e.g. /opt/my-target-tripplet
or just move the staging dir wherever you want and use the proper
--sysroot and -isysroot.
>
>I've experienced the case where I only transferred staging_dir and put it somewhere and when I tried compiling some software compiler was lacking some header files. Creating absolute path link to newly created toolchain dir to point to staging_dir where it was taken from solved the problem..

[Buildroot] Standalone toolchain

[Hinko Kocevar]

Bernhard Reutner-Fischer wrote:
> On Wed, Sep 24, 2008 at 03:14:47PM +0200, Hinko Kocevar wrote:
>> Hi,
>>
>> Is it possible to create a toolchain and then transfer it to another machine or just another folder, and have it work?
> 
> This is supposed to work, yes. The keyword is sysroot support.
> Either configure your BR2_STAGING_DIR to e.g. /opt/my-target-tripplet
> or just move the staging dir wherever you want and use the proper
> --sysroot and -isysroot.

Yes, that helped!
I've added --sysroot=$(TOOLCHAIN) to CFLAGS and LDFLAGS and gcc was happy again.

Best regards,
Hinko

-- 
?ETRTA POT, d.o.o., Kranj
Planina 3
4000 Kranj
Slovenia, Europe
Tel. +386 (0) 4 280 66 03
E-mail: hinko.kocevar at cetrtapot.si
Http: www.cetrtapot.si

[Buildroot] Standalone toolchain

[Hinko Kocevar]

Bernhard Reutner-Fischer wrote:
> On Wed, Sep 24, 2008 at 03:14:47PM +0200, Hinko Kocevar wrote:
>> Hi,
>>
>> Is it possible to create a toolchain and then transfer it to another machine or just another folder, and have it work?
> 
> This is supposed to work, yes. The keyword is sysroot support.
> Either configure your BR2_STAGING_DIR to e.g. /opt/my-target-tripplet
> or just move the staging dir wherever you want and use the proper
> --sysroot and -isysroot.

Like I posted earlier it works if I add --sysroot= to CFLAGS.
But I can't seem to get libtool to pass --sysroot= variable to the final link command in tslib package:


...
Making all in src
make[3]: Entering directory `/work/git/sdk.git/cris-uclibc/build/tslib-trunk/src'
/bin/sh ../libtool --tag=CC   --mode=link cris-linux-uclibc-gcc -DPLUGIN_DIR=\"/usr/lib/ts/\" -DTS_CONF=\"/etc/ts.conf\"  -DTSLIB_INTERNAL -fvisibility=hidden -DGCC_HASCLASSVISIBILITY -Os -pipe -funit-at-a-time -DLINUX -DLINUX_SYSTEM -D_REENTRANT -mno-mul-bug-workaround -Wall --sysroot=/work/git/sdk.git/toolchain -version-info 1:1:1 -release 0.0 -export-dynamic  -o libts.la -rpath /usr/lib ts_attach.lo ts_close.lo ts_config.lo ts_error.lo ts_fd.lo ts_load_module.lo ts_open.lo ts_parse_vars.lo ts_read.lo ts_read_raw.lo -ldl -ldl
cris-linux-uclibc-gcc -shared  .libs/ts_attach.o .libs/ts_close.o .libs/ts_config.o .libs/ts_error.o .libs/ts_fd.o .libs/ts_load_module.o .libs/ts_open.o .libs/ts_parse_vars.o .libs/ts_read.o .libs/ts_read_raw.o  -ldl  -mno-mul-bug-workaround -Wl,-soname -Wl,libts-0.0.so.0 -o .libs/libts-0.0.so.0.1.1
/work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/../../../../cris-linux-uclibc/bin/ld: crti.o: No such file: No such file or directory
collect2: ld returned 1 exit status
make[3]: *** [libts.la] Error 1
make[3]: Leaving directory `/work/git/sdk.git/cris-uclibc/build/tslib-trunk/src'

Manually adding --sysroot to gcc link command solves the problem, but it is not 'the way to go'. I've tried
adding -Wl--sysroot=.. but with no avail.

What switches must be used for libtool to pass sysroot parameter to the linker?

Thank you,
Hinko

-- 
?ETRTA POT, d.o.o., Kranj
Planina 3
4000 Kranj
Slovenia, Europe
Tel. +386 (0) 4 280 66 03
E-mail: hinko.kocevar at cetrtapot.si
Http: www.cetrtapot.si

[Buildroot] Standalone toolchain

[Hinko Kocevar]

Hinko Kocevar wrote:
> Bernhard Reutner-Fischer wrote:
>> On Wed, Sep 24, 2008 at 03:14:47PM +0200, Hinko Kocevar wrote:
>>> Hi,
>>>
>>> Is it possible to create a toolchain and then transfer it to another machine or just another folder, and have it work?
>> This is supposed to work, yes. The keyword is sysroot support.
>> Either configure your BR2_STAGING_DIR to e.g. /opt/my-target-tripplet
>> or just move the staging dir wherever you want and use the proper
>> --sysroot and -isysroot.
> 
> Like I posted earlier it works if I add --sysroot= to CFLAGS.
> But I can't seem to get libtool to pass --sysroot= variable to the final link command in tslib package:
> 
> 
> ...
> Making all in src
> make[3]: Entering directory `/work/git/sdk.git/cris-uclibc/build/tslib-trunk/src'
> /bin/sh ../libtool --tag=CC   --mode=link cris-linux-uclibc-gcc -DPLUGIN_DIR=\"/usr/lib/ts/\" -DTS_CONF=\"/etc/ts.conf\"  -DTSLIB_INTERNAL -fvisibility=hidden -DGCC_HASCLASSVISIBILITY -Os -pipe -funit-at-a-time -DLINUX -DLINUX_SYSTEM -D_REENTRANT -mno-mul-bug-workaround -Wall --sysroot=/work/git/sdk.git/toolchain -version-info 1:1:1 -release 0.0 -export-dynamic  -o libts.la -rpath /usr/lib ts_attach.lo ts_close.lo ts_config.lo ts_error.lo ts_fd.lo ts_load_module.lo ts_open.lo ts_parse_vars.lo ts_read.lo ts_read_raw.lo -ldl -ldl
> cris-linux-uclibc-gcc -shared  .libs/ts_attach.o .libs/ts_close.o .libs/ts_config.o .libs/ts_error.o .libs/ts_fd.o .libs/ts_load_module.o .libs/ts_open.o .libs/ts_parse_vars.o .libs/ts_read.o .libs/ts_read_raw.o  -ldl  -mno-mul-bug-workaround -Wl,-soname -Wl,libts-0.0.so.0 -o .libs/libts-0.0.so.0.1.1
> /work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/../../../../cris-linux-uclibc/bin/ld: crti.o: No such file: No such file or directory
> collect2: ld returned 1 exit status
> make[3]: *** [libts.la] Error 1
> make[3]: Leaving directory `/work/git/sdk.git/cris-uclibc/build/tslib-trunk/src'
> 

Here is more info with -Wl-v switch:
/bin/sh ../libtool --tag=CC   --mode=link cris-linux-uclibc-gcc -DPLUGIN_DIR=\"/usr/lib/ts/\" -DTS_CONF=\"/etc/ts.conf\"  -DTSLIB_INTERNAL -fvisibility=hidden -DGCC_HASCLASSVISIBILITY -Os -pipe -funit-at-a-time -DLINUX -DLINUX_SYSTEM -D_REENTRANT -mno-mul-bug-workaround -Wall --sysroot=/work/git/sdk.git/toolchain -version-info 1:1:1 -release 0.0 -export-dynamic -Wl,--sysroot=/work/git/sdk.git/toolchain --sysroot=/work/git/sdk.git/toolchain -Wl,-v -o libts.la -rpath /usr/lib ts_attach.lo ts_close.lo ts_config.lo ts_error.lo ts_fd.lo ts_load_module.lo ts_open.lo ts_parse_vars.lo ts_read.lo ts_read_raw.lo -ldl -ldl 
cris-linux-uclibc-gcc -shared  .libs/ts_attach.o .libs/ts_close.o .libs/ts_config.o .libs/ts_error.o .libs/ts_fd.o .libs/ts_load_module.o .libs/ts_open.o .libs/ts_parse_vars.o .libs/ts_read.o .libs/ts_read_raw.o  -ldl  -mno-mul-bug-workaround -Wl,--sysroot=/work/git/sdk.git/toolchain -Wl,-v -Wl,-soname -Wl,libts-0.0.so.0 -o .libs/libts-0.0.so.0.1.1
collect2 version 4.3.1
/work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/../../../../cris-linux-uclibc/bin/ld --sysroot=/work/buildroot/build_cris/staging_dir --eh-frame-hdr -mcrislinux -rpath-link include/asm/../.. -shared -o .libs/libts-0.0.so.0.1.1 crti.o /work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/crtbeginS.o -L/work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1 -L/work/git/sdk.git/toolchain/usr/bin/../lib/gcc -L/work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/../../../../cris-linux-uclibc/lib .libs/ts_attach.o .libs/ts_close.o .libs/ts_config.o .libs/ts_error.o .libs/ts_fd.o .libs/ts_load_module.o .libs/ts_open.o .libs/ts_parse_vars.o .libs/ts_read.o .libs/ts_read_raw.o -ldl --sysroot=/work/git/sdk.git/toolchain -v -soname libts-0.0.so.0 -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/crtendS.o crtn
.o
GNU ld (GNU Binutils) 2.18
/work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/../../../../cris-linux-uclibc/bin/ld: crti.o: No such file: No such file or directory
collect2: ld returned 1 exit status

It can be seen that --sysroot argument is not applied to the linker command - it is using default sysroot (used when creating toolchain) '/work/buildroot/build_cris/staging_dir' instead of '/work/git/sdk.git/toolchain' I'm trying to set.

LD should indeed accept the argument (from the help):
hinkok at alala /work/git/sdk.git $ /work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/../../../../cris-linux-uclibc/bin/ld --help|grep sysroot
  --sysroot=<DIRECTORY>       Override the default sysroot location

Thank you,
Hinko
-- 
?ETRTA POT, d.o.o., Kranj
Planina 3
4000 Kranj
Slovenia, Europe
Tel. +386 (0) 4 280 66 03
E-mail: hinko.kocevar at cetrtapot.si
Http: www.cetrtapot.si

[Buildroot] Standalone toolchain

[Hinko Kocevar]

Hinko Kocevar wrote:
> It can be seen that --sysroot argument is not applied to the linker command - it is using default sysroot (used when creating toolchain) '/work/buildroot/build_cris/staging_dir' instead of '/work/git/sdk.git/toolchain' I'm trying to set.
> 
> LD should indeed accept the argument (from the help):
> hinkok at alala /work/git/sdk.git $ /work/git/sdk.git/toolchain/usr/bin/../lib/gcc/cris-linux-uclibc/4.3.1/../../../../cris-linux-uclibc/bin/ld --help|grep sysroot
>   --sysroot=<DIRECTORY>       Override the default sysroot location
> 

These options seem to work:
CFLAGS += --sysroot=$(TOOLCHAIN)
LDFLAGS += --sysroot=$(TOOLCHAIN) -Wl,--sysroot,$(TOOLCHAIN)


Best regards,
Hinko

-- 
?ETRTA POT, d.o.o., Kranj
Planina 3
4000 Kranj
Slovenia, Europe
Tel. +386 (0) 4 280 66 03
E-mail: hinko.kocevar at cetrtapot.si
Http: www.cetrtapot.si