[Bug target/62231] [4.8/4.9 regression] Exception handling broken on powerpc-e500v2-linux-gnuspe
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62231 Andri Yngvason changed: What|Removed |Added CC||andri.yngvason at marel dot com --- Comment #14 from Andri Yngvason --- I have the same problem with 5.1 on a 603e, even though the patches from comment #4 seem to have been applied. I get the same stack trace as seen in comment #3. It doesn't matter whether I compile with --with-cpu=603e or without.
[Bug target/62231] [4.8/4.9 regression] Exception handling broken on powerpc-e500v2-linux-gnuspe
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62231 --- Comment #16 from Andri Yngvason --- Sorry, Joseph, I wasn't sure if this issue was fixed or not since the status is "NEW". I'll report a new issue.
[Bug libgcc/66212] New: Exception handling broken on powerpc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66212
Bug ID: 66212
Summary: Exception handling broken on powerpc
Product: gcc
Version: 5.1.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: libgcc
Assignee: unassigned at gcc dot gnu.org
Reporter: andri.yngvason at marel dot com
Target Milestone: ---
All exceptions cause the running process to be aborted.
The following program is aborted when trying to unwind the stack:
#include
#include
#include
using std::cout;
using std::endl;
void foobar()
{
cout << "..." << endl;
throw std::runtime_error("Whoohoo");
cout << "Wtf?" << endl;
}
int main(int, char**)
{
cout << "Throwing standard exception..." << endl;
try {
foobar();
} catch(std::exception& e) {
cout << "Caught: " << e.what() << endl;
}
cout << "Done!" << endl;
return 0;
}
Backtrace:
#0 0x0fbff76c in raise () from /lib/libc.so.6
#1 0x0fc010cc in abort () from /lib/libc.so.6
#2 0x0fd5fc1c in uw_init_context_1 () from /lib/glibc2.21/libgcc_s.so.1
#3 0x0fd60408 in _Unwind_RaiseException () from /lib/glibc2.21/libgcc_s.so.1
#4 0x0fed10ac in __cxa_throw () at
../../../../gcc-5.1.0/libstdc++-v3/libsupc++/eh_throw.cc:82
#5 0x1c28 in foobar() ()
#6 0x1cac in main ()
$ powerpc-marel-linux-gnu-g++ -v
Using built-in specs.
COLLECT_GCC=powerpc-marel-linux-gnu-g++
COLLECT_LTO_WRAPPER=/opt/plutotoolchain/libexec/gcc/powerpc-marel-linux-gnu/5.1.0/lto-wrapper
Target: powerpc-marel-linux-gnu
Configured with: ../gcc-5.1.0/configure --prefix=/opt/plutotoolchain
--target=powerpc-marel-linux-gnu --enable-languages=c,c++
--enable-threads=posix --enable-shared --disable-multilib --enable-__cxa_atexit
--disable-sjlj-exceptions --disable-nls --enable-symvers=gnu --enable-c99
--enable-long-long --enable-profile --with-tune=e300c3 --disable-altivec
Thread model: posix
gcc version 5.1.0 (GCC)
I tried to compile libgcc with debug symbols so that I could see which
assertion fails, but my attempts had no effect. I'd be happy to learn how to
get those debug symbols in there.
[Bug libgcc/66212] Exception handling broken on powerpc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66212 --- Comment #1 from Andri Yngvason --- I've now compiled the same toolchain for i686 and I have the same issue there, so I assume that I'm doing something wrong. It's hard to pin down what I'm doing wrong though. Everything seems to be linked correctly: # ldd stdexcept linux-gate.so.1 (0xb77ad000) libstdc++.so.6 => /lib/libstdc++.so.6 (0xb7633000) libm.so.6 => /lib/libm.so.6 (0xb75ea000) libgcc_s.so.1 => /lib/glibc2.21/libgcc_s.so.1 (0xb75ce000) libc.so.6 => /lib/libc.so.6 (0xb742) /lib/ld-linux.so.2 (0xb77ae000) # ls -l /lib/libstdc++.so.6 /lib/libm.so.6 /lib/libc.so.6 /lib/glibc2.21/libgcc_s.so.1 /lib/ld-linux.so.2 -rw-r--r--1 root root397872 May 20 10:11 /lib/glibc2.21/libgcc_s.so.1 lrwxrwxrwx1 root root10 May 20 10:57 /lib/ld-linux.so.2 -> ld-2.21.so lrwxrwxrwx1 root root12 May 20 10:57 /lib/libc.so.6 -> libc-2.21.so lrwxrwxrwx1 root root12 May 20 10:57 /lib/libm.so.6 -> libm-2.21.so lrwxrwxrwx1 root root19 May 20 10:57 /lib/libstdc++.so.6 -> libstdc++.so.6.0.21 I'll try 4.9...
[Bug libgcc/66212] Exception handling broken on powerpc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66212 --- Comment #3 from Andri Yngvason --- This is the libgcc that I built. I put it there. However, it is entirely within the realm of possibility that it may have been stripped on it's way there via dpkg. I'll try copying it there directly. Thanks!
[Bug libgcc/66212] Exception handling broken on powerpc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66212 Andri Yngvason changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #4 from Andri Yngvason --- I downloaded everything again and started from scratch. I've no idea what was wrong but now the problem is gone. Mea culpa.
