Date: Tue, 19 Jan 2016 20:14:25 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 206384] llvm libunwind segfaults while building lang/polyml Message-ID: <bug-206384-8-kpaJTDIVEt@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-206384-8@https.bugs.freebsd.org/bugzilla/> References: <bug-206384-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206384 --- Comment #2 from Ed Maste <emaste@freebsd.org> --- The large stack usage comes from this function -- note sub $0x878,%rsp: template <typename A, typename R> void UnwindCursor<A, R>::setInfoBasedOnIPRegister(bool isReturnAddress) { 92d0: 55 push %rbp 92d1: 48 89 e5 mov %rsp,%rbp 92d4: 41 57 push %r15 92d6: 41 56 push %r14 92d8: 41 55 push %r13 92da: 41 54 push %r12 92dc: 53 push %rbx 92dd: 48 81 ec 78 08 00 00 sub $0x878,%rsp from the stack-allocated typename CFI_Parser<A>::PrologInfo prolog 1229 #if _LIBUNWIND_SUPPORT_DWARF_UNWIND 1230 // There is no static unwind info for this pc. Look to see if an = FDE was 1231 // dynamically registered for it. 1232 pint_t cachedFDE =3D DwarfFDECache<A>::findFDE(0, pc); 1233 if (cachedFDE !=3D 0) { 1234 CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo; 1235 CFI_Parser<LocalAddressSpace>::CIE_Info cieInfo; 1236 const char *msg =3D CFI_Parser<A>::decodeFDE(_addressSpace, 1237 cachedFDE, &fdeInfo, &cieInfo); 1238 if (msg =3D=3D NULL) { 1239 typename CFI_Parser<A>::PrologInfo prolog; 1240 if (CFI_Parser<A>::parseFDEInstructions(_addressSpace, fdeInf= o, cieInfo, 1241 pc, &prolog)) { (lldb) p sizeof(PrologInfo) (unsigned long) $10 =3D 1952 --=20 You are receiving this mail because: You are the assignee for the bug.=
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