http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54204
Bug #: 54204
Summary: Wrong baseline_symbols.txt picked for x32
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: hjl.to...@gmail.com
On Linux/x32, when GCC is configured with --with
--with-multilib-list=m32,m64,mx32 -abi=x32
which builds the native x32 GCC:
[hjl@gnu-mic-2 gcc]$ ./xgcc --print-multi-directory
.
[hjl@gnu-mic-2 gcc]$ ./xgcc --print-multi-directory -mx32
.
[hjl@gnu-mic-2 gcc]$ ./xgcc --print-multi-directory -m32
32
[hjl@gnu-mic-2 gcc]$ ./xgcc --print-multi-directory -m64
64
[hjl@gnu-mic-2 gcc]$
libstdc++ testsuite uses
baseline_subdir := $(shell $(CXX) $(baseline_subdir_switch))
@(output=${baseline_dir}/${baseline_subdir}/baseline_symbols.txt
to pick up baseline_symbols.txt and
[hjl@gnu-6 gcc]$ ls libstdc++-v3/config/abi/post/x86_64-linux-gnu
32 baseline_symbols.txt x32
[hjl@gnu-6 gcc]$
The wrong file is picked for both -m64 and -mx32 cases. One way
to fix is to compile a small C/C++ file and use "file" to check
the output.
