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[buildrobot] ppc: signed/unsigned comparison


With GCC 4.8.1 on my i686 builder targeting ppc-linux, I got:

gcc -DHAVE_CONFIG_H -I. -I/home/vaxbuild/repos/binutils_gdb/gas  -I. -I/home/vaxbuild/repos/binutils_gdb/gas -I../bfd -I/home/vaxbuild/repos/binutils_gdb/gas/config -I/home/vaxbuild/repos/binutils_gdb/gas/../include -I/home/vaxbuild/repos/binutils_gdb/gas/.. -I/home/vaxbuild/repos/binutils_gdb/gas/../bfd -DLOCALEDIR="\"/home/vaxbuild/build/ppc-linux/_install_/share/locale\""  -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Werror -g -O2 -MT tc-ppc.o -MD -MP -MF .deps/tc-ppc.Tpo -c -o tc-ppc.o `test -f 'config/tc-ppc.c' || echo '/home/vaxbuild/repos/binutils_gdb/gas/'`config/tc-ppc.c
/home/vaxbuild/repos/binutils_gdb/gas/config/tc-ppc.c: In function âppc_elf_localentryâ:
/home/vaxbuild/repos/binutils_gdb/gas/config/tc-ppc.c:2272:28: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
       if (exp.X_add_number != PPC64_LOCAL_ENTRY_OFFSET (encoded))
cc1: all warnings being treated as errors
make[3]: *** [tc-ppc.o] Error 1


This should probably fix it:

2013-11-08  Jan-Benedict Glaw  <

	* config/tc-ppc.c (ppc_elf_localentry): Add cast.

diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index 822f5a2..7c99e43 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -2269,7 +2269,7 @@ ppc_elf_localentry (int ignore ATTRIBUTE_UNUSED)
       unsigned char encoded = PPC64_SET_LOCAL_ENTRY_OFFSET (exp.X_add_number);
-      if (exp.X_add_number != PPC64_LOCAL_ENTRY_OFFSET (encoded))
+      if (exp.X_add_number != (offsetT) PPC64_LOCAL_ENTRY_OFFSET (encoded))
         as_bad (_(".localentry expression for `%s' "
 		  "is not a valid power of 2"), S_GET_NAME (sym));


      Jan-Benedict Glaw              +49-172-7608481
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