Still blowing up -- RPI2 crossbuild

[Karl Denninger]

On 5/21/2016 11:28, Ian Lepore wrote:
> On Sat, 2016-05-21 at 11:10 -0500, Karl Denninger wrote:
>> From an AMD64 machine using the "mk" script, now that hardware
>> floating-point has turned into the default it appears that at the
>> same
>> time an include file has gone missing.
>>
>> I get:
>>
>> --- flt_rounds.So ---
>> cc  -fpic -DPIC  -O -pipe   -I/pics/CrossBuild/src/lib/libc/include
>> -I/pics/CrossBuild/src/lib/libc/../../include
>> -I/pics/CrossBuild/src/lib/libc/arm -DNLS  -D__DBINTERFACE_PRIVATE
>> -I/pics/CrossBuild/src/lib/libc/../../contrib/gdtoa
>> -I/pics/CrossBuild/src/lib/libc/../../contrib/libc-vis -DINET6
>> -I/pics/CrossBuild/obj/arm.armv6/pics/CrossBuild/src/lib/libc
>> -I/pics/CrossBuild/src/lib/libc/resolv -D_ACL_PRIVATE -DPOSIX_MISTAKE
>> -I/pics/CrossBuild/src/lib/libc/../libmd
>> -I/pics/CrossBuild/src/lib/libc/../../contrib/jemalloc/include
>> -I/pics/CrossBuild/src/lib/libc/../../contrib/tzcode/stdtime
>> -I/pics/CrossBuild/src/lib/libc/stdtime
>> -I/pics/CrossBuild/src/lib/libc/locale -DBROKEN_DES -DPORTMAP
>> -DDES_BUILTIN -I/pics/CrossBuild/src/lib/libc/rpc -DYP -DNS_CACHING
>> -DSYMBOL_VERSIONING -MD  -MF.depend.flt_rounds.So -MTflt_rounds.So
>> -std=gnu99 -Wsystem-headers -Werror -Wall -Wno-format-y2k
>> -Wno-uninitialized -Wno-pointer-sign -Wno-empty-body
>> -Wno-string-plus-int -Wno-unused-const-variable
>> -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality
>> -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef
>> -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
>> -Qunused-arguments  -I/pics/CrossBuild/src/lib/libutil
>> -I/pics/CrossBuild/src/lib/msun/arm 
>> -I/pics/CrossBuild/src/lib/msun/src
>> -c /pics/CrossBuild/src/lib/libc/arm/gen/flt_rounds.c -o
>> flt_rounds.So
>> /pics/CrossBuild/src/lib/libc/arm/gen/flt_rounds.c:34:10: fatal
>> error:
>> 'softfloat-for-gcc.h' file not found
>> #include "softfloat-for-gcc.h"
>>          ^
>> 1 error generated.
>> *** [flt_rounds.So] Error code 1
>>
>> The code in question in flt_rounds.c is:
>>
>> #include <fenv.h>
>> #include <float.h>
>>
>> #ifndef __ARM_PCS_VFP
>> #include "softfloat-for-gcc.h"
>> #include "milieu.h"
>> #include "softfloat.h"
>> #endif
>>
>> And indeed in src/lib/libc/arm/softfloat that file is not there (the
>> other two are)
>>
>> Adding "#define    __ARM_PCS_VFP" (so the test for those three
>> includes
>> always fails) appears to work. 
>>
>> But then the crossbuild blows up here:
>>
>> --- kerberos5/lib/libhdb__L ---
>> hdb-sqlite.So: In function `hdb_sqlite_make_database':
>> /pics/CrossBuild/src/kerberos5/lib/libhdb/../../../crypto/heimdal/lib
>> /hdb/hdb-sqlite.c:(.text+0x480):
>> undefined reference to `__aeabi_dcmpeq'
>> cc: error: linker command failed with exit code 1 (use -v to see
>> invocation)
>> *** [libhdb.so.11] Error code 1
>>
>> bmake[4]: stopped in /pics/CrossBuild/src/kerberos5/lib/libhdb
>> 1 error
>>
>> bmake[4]: stopped in /pics/CrossBuild/src/kerberos5/lib/libhdb
>> *** [kerberos5/lib/libhdb__L] Error code 2
>>
>> Will see what I can find later on this...
>>
> If that mk script is adding -DNO_CLEAN for you, that might be the
> problem.  I've had no problems doing a crossbuild after updating to the
> armv6hf->armv6 change, but I started with "rm -rf obj/*" in my build
> sandbox to be sure I got a new crosscompiler built first.
>
> -- Ian
"mk clean" was not sufficient; removing the obj directory was required. 
Looks ok now will try installation later.

-- 
Karl Denninger
karl at denninger.net <mailto:karl at denninger.net>
/The Market Ticker/
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