https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64798
Bug ID: 64798
Summary: [5 regression] g++.old-deja/g++.eh/badalloc1.C FAILs
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Host: sparc*-sun-solaris2.*
Target: sparc*-sun-solaris2.*
Build: sparc*-sun-solaris2.*
Between 20150116 (r219745) and 20150123 (r220039),
g++.old-deja/g++.eh/badalloc1.C
started to FAIL on 32-bit Solaris/SPARC:
FAIL: g++.old-deja/g++.eh/badalloc1.C -std=c++11 execution test
FAIL: g++.old-deja/g++.eh/badalloc1.C -std=c++14 execution test
FAIL: g++.old-deja/g++.eh/badalloc1.C -std=c++98 execution test
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
__cxxabiv1::__cxa_throw (obj=0x2195c <arena+92>,
tinfo=0x73908 <typeinfo for int>, dest=0x0)
at /vol/gcc/src/hg/trunk/local/libstdc++-v3/libsupc++/eh_throw.cc:76
76
__GXX_INIT_PRIMARY_EXCEPTION_CLASS(header->exc.unwindHeader.exception_class);
1: x/i $pc
=> 0xff220314 <__cxxabiv1::__cxa_throw(void*, std::type_info*, void
(*)(void*))+96>: sttw %g2, [ %i0 + -24 ]
(gdb) where
#0 __cxxabiv1::__cxa_throw (obj=0x2195c <arena+92>,
tinfo=0x73908 <typeinfo for int>, dest=0x0)
at /vol/gcc/src/hg/trunk/local/libstdc++-v3/libsupc++/eh_throw.cc:76
#1 0x00011114 in fn_throw ()
at
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.old-deja/g++.eh/badalloc1.C:98
#2 0x000112f8 in main ()
at
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.old-deja/g++.eh/badalloc1.C:129
(gdb) p $i0-24
$3 = 137540
The SEGV happens because the sttw target needs to be 8-byte aligned, but is
not.
Rainer
