https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98708
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[11 Regression] |[11 Regression]
|cxx11-ios_failure-lt.s:3673 |cxx11-ios_failure-lt.s:3673
|3: Error: file number less |3: Error: file number less
|than one |than one by r11-6755
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
/bin/sh ../../libtool --tag CXX --tag disable-shared --mode=compile
/export/gnu/import/git/gcc-test-master-intel64-native/bld/./gcc/xgcc
-shared-libgcc
-B/export/gnu/import/git/gcc-test-master-intel64-native/bld/./gcc -nostdinc++
-L/export/gnu/import/git/gcc-test-master-intel64-native/bld/x86_64-pc-linux-gnu/libstdc++-v3/src
-L/export/gnu/import/git/gcc-test-master-intel64-native/bld/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/export/gnu/import/git/gcc-test-master-intel64-native/bld/x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -B/usr/11.0.0/x86_64-pc-linux-gnu/lib/
-isystem /usr/11.0.0/x86_64-pc-linux-gnu/include -isystem
/usr/11.0.0/x86_64-pc-linux-gnu/sys-include -fno-checking
-I/export/gnu/import/git/gcc-test-master-intel64-native/src-master/libstdc++-v3/../libgcc
-I/export/gnu/import/git/gcc-test-master-intel64-native/bld/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I/export/gnu/import/git/gcc-test-master-intel64-native/bld/x86_64-pc-linux-gnu/libstdc++-v3/include
-I/export/gnu/import/git/gcc-test-master-intel64-native/src-master/libstdc++-v3/libsupc++
-std=gnu++11 -prefer-pic -D_GLIBCXX_SHARED -fno-implicit-templates -Wall
-Wextra -Wwrite-strings -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once
-ffunction-sections -fdata-sections -frandom-seed=cxx11-ios_failure.lo -g -O2
-D_GNU_SOURCE -fcf-protection -mshstk -g0 -c cxx11-ios_failure-lt.s -o
cxx11-ios_failure.lo
cxx11-ios_failure-lt.s contains DWARF5 debug info. Since -g0 is used,
--gdwarf-5 isn't passed to assembler:
[hjl@gnu-clx-1 gcc]$ ./xgcc -B./ -c /tmp/cxx11-ios_failure-lt.s
/tmp/cxx11-ios_failure-lt.s: Assembler messages:
/tmp/cxx11-ios_failure-lt.s:36733: Error: file number less than one
[hjl@gnu-clx-1 gcc]$ ./xgcc -B./ -c /tmp/cxx11-ios_failure-lt.s -g
[hjl@gnu-clx-1 gcc]$
This means that "gcc -c" no longer works on assembly codes generated with
-g when DWARF5 is enabled.
