On 05/11/2020 18:27, Sebastian Huber wrote:
On 05/11/2020 18:22, Sebastian Huber wrote:
On 05/11/2020 18:16, Andrew Butterfield wrote:
I'm not a waf expert, but might this section in their book help?
https://waf.io/book/#_fundamental_waf_commands
<https://waf.io/book/#_fundamental_waf_commands>
Can variables `top` and `out` in the example there be manipulated to
do want you want?
Yes, the --top and --out options works somehow, but I get a warning
like this:
Waf: Entering directory
`/home/EB/sebastian_h/src/rtems-source-builder/tmp/build/sparc/erc32'
CWD /home/EB/sebastian_h/src/rtems-source-builder/tmp is not under
/home/EB/sebastian_h/src/rtems, forcing --targets=* (run distclean?)
Also the documentation says "Though Waf may be called from any folder
containing a /wscript/ file,", so I am not sure if this is really
supported what I am doing.
What works is something like this:
./waf configure --out $PWD/tmp/xxx/build
called from the source tree. However, this has some side-effects.
1. A .waf* directory is created in the source tree (this is an issue
with a read-only source tree).
2. Waf somehow remembers this configuration. You can call "./waf" to
build it. So, there must be some hidden state in the source tree. This
is not really an out of tree build. You cannot have multiple
independent build trees.
This happens if I use a read-only source tree:
~/tmp/out-of-tree > pwd
/home/EB/sebastian_h/tmp/out-of-tree
~/tmp/out-of-tree > ~/src/rtems/waf --top $HOME/src/rtems-read-only
--out $PWD/build configure --rtems-config $PWD/config.ini
Setting top to :
/home/EB/sebastian_h/src/rtems-read-only
Setting out to :
/home/EB/sebastian_h/tmp/out-of-tree/build
Configure board support package (BSP) : sparc/erc32
Checking for program 'sparc-rtems6-gcc' :
/opt/rtems/6/bin/sparc-rtems6-gcc
Checking for program 'sparc-rtems6-g++' :
/opt/rtems/6/bin/sparc-rtems6-g++
Checking for program 'sparc-rtems6-ar' : /opt/rtems/6/bin/sparc-rtems6-ar
Checking for program 'sparc-rtems6-ld' : /opt/rtems/6/bin/sparc-rtems6-ld
Checking for program 'ar' : /opt/rtems/6/bin/sparc-rtems6-ar
Checking for program 'g++, c++' :
/opt/rtems/6/bin/sparc-rtems6-g++
Checking for program 'ar' : /opt/rtems/6/bin/sparc-rtems6-ar
Checking for program 'gas, gcc' :
/opt/rtems/6/bin/sparc-rtems6-gcc
Checking for program 'ar' : /opt/rtems/6/bin/sparc-rtems6-ar
Checking for program 'gcc, cc' :
/opt/rtems/6/bin/sparc-rtems6-gcc
Checking for program 'ar' : /opt/rtems/6/bin/sparc-rtems6-ar
Checking for asm flags '-MMD' : yes
Checking for c flags '-MMD' : yes
Checking for cxx flags '-MMD' : yes
Traceback (most recent call last):
File
"/home/EB/sebastian_h/src/rtems/.waf-2.0.20-36f5354d605298f6a89c09e0c7ef6c1d/waflib/Scripting.py",
line 119, in waf_entry_point
run_commands()
File
"/home/EB/sebastian_h/src/rtems/.waf-2.0.20-36f5354d605298f6a89c09e0c7ef6c1d/waflib/Scripting.py",
line 182, in run_commands
ctx=run_command(cmd_name)
File
"/home/EB/sebastian_h/src/rtems/.waf-2.0.20-36f5354d605298f6a89c09e0c7ef6c1d/waflib/Scripting.py",
line 173, in run_command
ctx.execute()
File
"/home/EB/sebastian_h/src/rtems/.waf-2.0.20-36f5354d605298f6a89c09e0c7ef6c1d/waflib/Configure.py",
line 101, in execute
env.store(os.path.join(Context.run_dir,Options.lockfile))
File
"/home/EB/sebastian_h/src/rtems/.waf-2.0.20-36f5354d605298f6a89c09e0c7ef6c1d/waflib/ConfigSet.py",
line 146, in store
Utils.writef(filename,''.join(buf))
File
"/home/EB/sebastian_h/src/rtems/.waf-2.0.20-36f5354d605298f6a89c09e0c7ef6c1d/waflib/Utils.py",
line 160, in writef
with open(fname,m)as f:
IOError: [Errno 13] Permission denied:
'/home/EB/sebastian_h/src/rtems-read-only/.lock-waf_linux2_build'
--
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