Unable to build FreeBSD xdev tools for ARM on FreeBSD 10.0-CURRENT

[Warner Losh]

I've never had this working for clang, only gcc.  I've never had cross building working for ARM.  Perhaps we should fix this to force gcc until the underlying issues can be fixed.  Check to see that you don't have WITH_CLANG_AS_CC defined, or CC=clang.

Warner

On Sep 14, 2012, at 6:12 PM, KCasey42 wrote:

> Attempting to build the cross tools
> # cd /usr/src
> # make xdev XDEV=arm XDEV_ARCH=arm
> 
> on the following system
> 
> # uname -a
> FreeBSD xxx.xxx.xxx 10.0-CURRENT FreeBSD 10.0-CURRENT #0 r240450: Thu Sep 13 05:49:13 PDT 2012 root at xxx.xxx.xxx:/usr/src/sys/amd64/compile/silver  amd64
> 
> using
> 
> # clang --version
> FreeBSD clang version 3.2 (trunk 162107) 20120817
> Target: x86_64-unknown-freebsd10.0
> Thread model: posix
> 
> produces the following error
> 
> clang  -O -pipe  -fpic -fvisibility=hidden -DVISIBILITY_HIDDEN -std=gnu99 -Qunused-arguments  -c /usr/src/lib/libcompiler_rt/__sync_fetch_and_add_4.c -o __sync_fetch_and_add_4.o
> In file included from /usr/src/lib/libcompiler_rt/__sync_fetch_and_add_4.c:6:
> /usr/src/lib/libcompiler_rt/__sync_fetch_and_op_n.h:34:1: error: conflicting
>      types for '__sync_fetch_and_add_4'
> NAME(volatile TYPE *ptr, TYPE value)
> ^
> /usr/src/lib/libcompiler_rt/__sync_fetch_and_add_4.c:2:15: note: expanded from
>      macro 'NAME'
> #define NAME            __sync_fetch_and_add_4# clang --version
> FreeBSD clang version 3.2 (trunk 162107) 20120817
> Target: x86_64-unknown-freebsd10.0
> Thread model: posix
> 
>                        ^
> /usr/src/lib/libcompiler_rt/__sync_fetch_and_op_n.h:34:1: note:
>      '__sync_fetch_and_add_4' is a builtin with type 'int (volatile int *, int,
>      ...)'
> NAME(volatile TYPE *ptr, TYPE value)
> ^
> /usr/src/lib/libcompiler_rt/__sync_fetch_and_add_4.c:2:15: note: expanded from
>      macro 'NAME'
> #define NAME            __sync_fetch_and_add_4
>                        ^
> In file included from /usr/src/lib/libcompiler_rt/__sync_fetch_and_add_4.c:6:
> /usr/src/lib/libcompiler_rt/__sync_fetch_and_op_n.h:34:1: error: definition of
>      builtin function '__sync_fetch_and_add_4'
> NAME(volatile TYPE *ptr, TYPE value)
> ^
> /usr/src/lib/libcompiler_rt/__sync_fetch_and_add_4.c:2:15: note: expanded from
>      macro 'NAME'
> #define NAME            __sync_fetch_and_add_4
>                        ^
> 2 errors generated.
> *** [__sync_fetch_and_add_4.o] Error code 1
> 
> Stop in /usr/src/lib/libcompiler_rt.
> *** [lib/libcompiler_rt__PL] Error code 1
> 
> Stop in /usr/src.
> *** [libraries] Error code 1
> 
> Stop in /usr/src.
> *** [_xi-libraries] Error code 1
> 
> Stop in /usr/src.
> *** [xdev] Error code 1
> 
> Stop in /usr/src.
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