|Subject:||Re: [Libunwind-devel] libunwind on x86-64 w/ C++ exceptions|
|Date:||Thu, 28 Feb 2008 14:51:31 -0800|
As I said in the other mail, something along the lines of this completely untested change may be what you and others who're having trouble with _Unwind_*() APIs want:
@@ -70,7 +70,10 @@ libunwind_la_SOURCES_local = \
mi/Lput_dynamic_unwind_info.c mi/Ldestroy_addr_space.c \
mi/Lget_reg.c mi/Lset_reg.c \
mi/Lget_fpreg.c mi/Lset_fpreg.c \
- mi/Lset_caching_policy.c \
+libunwind_la_SOURCES_local += \
unwind/Backtrace.c unwind/DeleteException.c \
unwind/FindEnclosingFunction.c unwind/ForcedUnwind.c \
unwind/GetBSP.c unwind/GetCFA.c unwind/GetDataRelBase.c \
@@ -78,6 +81,7 @@ libunwind_la_SOURCES_local = \
unwind/GetRegionStart.c unwind/GetTextRelBase.c \
unwind/RaiseException.c unwind/Resume.c \
unwind/Resume_or_Rethrow.c unwind/SetGR.c unwind/SetIP.c
@@ -94,6 +94,7 @@ AM_CONDITIONAL(ARCH_PPC32, test x$target_arch = xppc32)
AM_CONDITIONAL(ARCH_PPC64, test x$target_arch = xppc64)
AM_CONDITIONAL(OS_LINUX, expr x$target_os : xlinux >/dev/null)
AM_CONDITIONAL(OS_HPUX, expr x$target_os : xhpux >/dev/null)
+AM_CONDITIONAL(SUPPORT_CXX_EXCEPTIONS, test x$target_arch = xia64)
if test x$target_arch = xppc64; then
On Tue, Feb 26, 2008 at 10:41 PM, Mark Rabkin <address@hidden> wrote:
My battle to get this working still continues :) Are you going to have time to take a look into the first crash (the one you can reproduce)?
I made a patch to prevent that 2nd crashing bug below on the fldenv(), as I mentioned before, but now I'm seeing another strange behavior -- in my complicated program, I have exceptions that slip through a try-catch block uncaught (even though they should be), and result in a program termination due to uncaught exception. I'm struggling to get a smaller test case of that working so I can get verification of it.
I'll send you my patch in the meantime to see if you think it's acceptable.
On 2/15/08 4:58 PM, "Arun Sharma" <address@hidden> wrote:
On Fri, Feb 15, 2008 at 4:25 PM, Mark Rabkin <address@hidden> wrote:
$ gdb unwind
Program received signal SIGABRT, Aborted.
#0 0x0000003bd882f3b0 in raise () from /lib64/libc.so.6
#1 0x0000003bd8830860 in abort () from /lib64/libc.so.6
#2 0x0000003bd95bb8c1 in __cxa_get_globals () from /usr/lib64/libstdc++.so.6
#3 0x0000003bd95bb9b4 in __cxa_get_globals () from /usr/lib64/libstdc++.so.6
#4 0x0000003bd95bbd07 in __gxx_personality_v0 ()
#5 0x000000000040100b in _Unwind_Resume (exception_object=0x517060)
#6 0x0000000000400e84 in throw_int () at unwind.cpp:7
#7 0x0000000000400e98 in main (argc=1, argv=0x7ffffffcb818) at unwind.cpp:12
I can reproduce this one.
Program received signal SIGSEGV, Segmentation fault.
_x86_64_setcontext () at x86_64/setcontext.S:34
34 fldenv (%r8)
But not this one. Which version of gcc are you using?
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