Sorry. The patch is in the attachment. Missed it just now.
2014-07-27 22:00 GMT+08:00 Peng Fan <van.free...@gmail.com>: > Hi, > > > 2014-07-26 9:28 GMT+08:00 Chris Johns <chr...@rtems.org>: > > On 26/07/2014 12:25 am, Peng Fan wrote: >> >>> Hi Chris, >>> >>> I build a rap file using such a command : >>> rtems-ld --lib-path >>> /opt/rtems-4.11/arm-rtems4.11/realview_pbx_a9_qemu/lib --lib m --lib >>> rtemscpu --lib rtemsbsp --base rtld.prelink --entry rtems a.o b.o c.o >>> *.o ... >>> Is this ok? can reference a symbol in librtemscpu.a librtemsbsp.a? or >>> the reference symbol from librtemscpu.a librtemsbsp.a should be included >>> in the base image but not in the rap file? >>> >> >> This is fine. You do not need to load a base image with everything you >> might need. >> >> If you create another RAP file and do the same thing and that RAP pulls >> the same code in from one of those libraries it will not be linked to. >> Rather the first instance of the code loaded is used. The downside is a >> possible waste of code. >> > Yeah.Other RAP file which references the same code that already in the > first rap should not pull the same code into the final image. > >> >> I suppose we could add code to compact the memory and not loaded the >> object file and so the overhead is limited to the RAP file. > > Sorry. I can not got this. what code should be added to rtl-host? > >> >> >> >>> I set rtems_linkflags like this: >>> rtems_linkflags = ['--base', 'rtld.prelink', >>> '--lib-path', >>> '/opt/rtems-4.11/arm-rtems4.11/realview_pbx_a9_qemu/lib', >>> '--entry', 'my_main', '--lib', 'm', '--lib', >>> 'rtemscpu' , '--lib', 'rtemsbsp'], >>> But waf only uses one '--lib', it removes the other two '--lib', like >>> this: xxx '--entry', 'my_main', '--lib', 'm', 'rtemscpu', 'rtemsbsp',xxx >>> I am not familar with waf, any advice about his? >>> >> >> Try using LIBS and adding to that. Getting the order correct can be >> tricky. > > To bld whose feature is 'c program', libs = ['m', 'xxx'] works. But to 'c > rap' which is defined in RTL, adding libs to bld of waf does not work. So I > wrote a patch to fix this, the patch first clear the RTEMS_LINKFLAGS env, > then refill it. The patch is in the attachments. > > Regards, > Peng. > > >> >> Chris >> > >
0001-Fix-multiple-same-options-in-rtems_linkflags-problem.patch
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