Re: [ECOS] Problem building redboot

["Mikhail Matusov" <matusov at squarepeg dot ca>]

OK, I found a few configurations which build cleanly, so my toolchain is 
basically working.

I believe my problem has to do with how the HW_DESIGN environment variable 
is being exported and/or how it is interpreted. First, I moved the export 
sentence to the .bashrc file to make sure that the variable is available in 
all child processes. However, the make or compiler still doesn't see it...

Here is an excerpt from the hal_powerpc_virtex4.cdl showing where $HW_DESIGN 
is introduced

       cdl_option CYGBLD_GLOBAL_CFLAGS {
           display "Global compiler flags"
           flavor  data
           no_define
           default_value { 
"-I$HW_DESIGN -I$HW_DESIGN/ppc405_0/include -I$ECOS_EXTRA -DVIRTEX4 -msoft-float 
-mcpu=405 -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef -Woverloaded-virtual 
-g -O2 -ffunction-sections -fdata-sections -fno-rtti -fno-exceptions -fvtable-gc" 
}
           description   "
               This option controls the global compiler flags which
               are used to compile all packages by
               default. Individual packages may define
               options which override these global flags."
       }

I can see that these CFLAGS are shown correctly under the Build/Options in 
the configuration tool, however when compiler is called the variable seems 
to be empty:

powerpc-eabi-gcc -finline-limit=7000 -I -I/ppc405_0/include -I -DVIRTEX4 -msoft-float 
-mcpu=405 -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef -Woverloaded-virtual 
-g -O2 -ffunction-sections -fdata-sections -fno-rtti -fno-exceptions -I/opt/ML403-misc/ml403-minimal_install/include 
-I/opt/ecos/ecos-anoncvs/ecos/packages/hal/powerpc/arch/current -I/opt/ecos/ecos-anoncvs/ecos/packages/hal/powerpc/arch/current/src 
-I/opt/ecos/ecos-anoncvs/ecos/packages/hal/powerpc/arch/current/tests -I. -Wp,-MD,ppc_offsets.tmp 
-o hal_mk_defs.tmp -S 
/opt/ecos/ecos-anoncvs/ecos/packages/hal/powerpc/arch/current/src/hal_mk_defs.c

Some of the compiler flags (e.g. fvtable-gc) seem to have disappeared as 
well...


Running bash from Tools/Shell I can see that it is set and visible:

bash-3.2$ echo $HW_DESIGN
/opt/ML403-redboot/bsp/

So, what's going on here?..


Thanks,
/Mikhail




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