On Mon, Jun 06, 2011 at 08:36:26PM +0200, Aurelien Jarno wrote: > clone 601645 -1 > reopen -1 > reassign -1 clang 2.9-1 > thanks > > Hi, > > On Wed, Oct 27, 2010 at 10:32:01PM -0400, Mark Heily wrote: >> Package: clang >> Version: 2.7-3 >> Severity: normal >> File: /usr/bin/clang >> >> clang is unable to compile a trivial program on MIPS due to a glibc >> dependency on GCC-specific macros. Here is a command that >> demonstrates the failure: >> >> $ echo '#include <stdlib.h>' | clang -x c - >> clang: warning: unknown platform, assuming -mfloat-abi=soft >> In file included from <stdin>:1: >> In file included from /usr/include/stdlib.h:320: >> In file included from /usr/include/sys/types.h:31: >> /usr/include/bits/types.h:128:3: error: #error >> >> The problem is that glibc expects the macro _MIPS_SZPTR to be >> defined by the compiler. Clang does not appear to define this macro. >> Glibc uses _MIPS_SZPTR to set the value of __WORDSIZE, so you can >> workaround the compilation issue like this: >> >> printf "#define _MIPS_SZPTR 32\n#include <stdlib.h>\n" | clang -x c - >> >> The Linux kernel sources mention several other MIPS-related macros >> that are specific to GCC and may not be implemented by other >> compilers [1]. > > This bug has been workaround in eglibc 2.13-5 by using another way to > define __WORDSIZE on clang. > > That said after discussing with upstream, it clearly appears to be a > clang issue. _MIPS_SZPTR has been defined by SGI and must be present > in all compilers targeting MIPS. Some more details are given in > "MIPSpro(TM) Compiling and Performance Tuning Guide" (SGI's document > #007-2360-008). > > I am therefore cloning and reassigning this bug to clang. I'll keep the > workaround in eglibc until the problem is solved on the clang side. Hello Aurelien, I just closed #599984. http://bugs.debian.org/599984 And #629441 was blocking the fix for #599984. http://bugs.debian.org/629441 I tried your one-line clang command on mips and mipsel. The mips result is below. $ uname -a Linux choco 3.10-3-r5k-ip32 #1 Debian 3.10.11-1 (2013-09-10) mips64 GNU/Linux $ echo '#include <stdlib.h>' | clang -x c - /usr/bin/ld: /tmp/--6Ek165.o: warning: linking abicalls files with non-abicalls files /usr/bin/../lib/gcc/mips-linux-gnu/4.8/../../../mips-linux-gnu/crt1.o: In function `__start': (.text+0x18): undefined reference to `main' clang: error: linker command failed with exit code 1 (use -v to see invocation) And the mipsel result is below. $ uname -a Linux eladi 2.6.36-trunk-loongson-2f #1 Thu Oct 28 17:32:42 UTC 2010 mips64 GNU/Linux $ echo '#include <stdlib.h>' | clang -x c - /usr/bin/ld: /tmp/--klojkk.o: warning: linking abicalls files with non-abicalls files /usr/bin/../lib/gcc/mipsel-linux-gnu/4.8/../../../mipsel-linux-gnu/crt1.o: In function `__start': (.text+0x18): undefined reference to `main' clang: error: linker command failed with exit code 1 (use -v to see invocation) Should I close #629441? Regards, Aníbal
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