On Thu, Dec 26, 2013 at 11:35:16AM +1100, Aníbal Monsalve Salazar wrote: > 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 . >> >> 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 Fixed typo in Cc list.
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