alexandreyy added a comment. In https://reviews.llvm.org/D39681#920349, @labath wrote:
> I'm not sure what's the problem with backtracing without more info, but the > nice thing about core files is that you can open a ppc and x86 one side by > side and see how for do you get before things start to diverge. The > interesting commands you can start with are "image lookup" (to see if you can > find symbols properly), "image show-unwind" (to see the unwind plans) and > "log enable lldb unwind && bt" (to see backtracing in action). This is what I > get for the x86_64 core file (you should be able to see the same thing > yourself): > > (lldb) bt > * thread #1, name = 'a.out', stop reason = signal SIGSEGV > * frame #0: 0x000000000040011c > linux-x86_64.out`bar(boom=0x0000000000000000) at main.c:4 > frame #1: 0x0000000000400142 > linux-x86_64.out`foo(boom=0x0000000000000000, boomer=(linux-x86_64.out`bar at > main.c:2)) at main.c:10 > frame #2: 0x000000000040015f linux-x86_64.out`_start at main.c:16 > (lldb) image lookup -n bar > 1 match found in > /usr/local/google/home/labath/ll/lldb/test/testcases/functionalities/postmortem/elf-core/linux-x86_64.out: > Address: linux-x86_64.out[0x000000000040010c] > (linux-x86_64.out..text + 0) > Summary: linux-x86_64.out`bar at main.c:2 > (lldb) image show-unwind -n bar > UNWIND PLANS for linux-x86_64.out`bar (start addr 0x40010c) > > Asynchronous (not restricted to call-sites) UnwindPlan is 'assembly insn > profiling' > Synchronous (restricted to call-sites) UnwindPlan is 'eh_frame CFI' > Fast UnwindPlan is 'x86_64 default unwind plan' > > Assembly language inspection UnwindPlan: > This UnwindPlan originally sourced from assembly insn profiling > This UnwindPlan is sourced from the compiler: no. > This UnwindPlan is valid at all instruction locations: yes. > Address range of this UnwindPlan: [linux-x86_64.out..text + > 0-0x0000000000000015) > row[0]: 0: CFA=rsp +8 => rsp=CFA+0 rip=[CFA-8] > row[1]: 1: CFA=rsp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8] > row[2]: 4: CFA=rbp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8] > row[3]: 20: CFA=rsp +8 => rsp=CFA+0 rip=[CFA-8] > > eh_frame UnwindPlan: > This UnwindPlan originally sourced from eh_frame CFI > This UnwindPlan is sourced from the compiler: yes. > This UnwindPlan is valid at all instruction locations: no. > Address range of this UnwindPlan: [linux-x86_64.out..text + > 0-0x0000000000000015) > row[0]: 0: CFA=rsp +8 => rip=[CFA-8] > row[1]: 1: CFA=rsp+16 => rbp=[CFA-16] rip=[CFA-8] > row[2]: 4: CFA=rbp+16 => rbp=[CFA-16] rip=[CFA-8] > row[3]: 20: CFA=rsp +8 => rbp=[CFA-16] rip=[CFA-8] > > Fast UnwindPlan: > This UnwindPlan originally sourced from x86_64 default unwind plan > This UnwindPlan is sourced from the compiler: no. > This UnwindPlan is valid at all instruction locations: no. > row[0]: 0: CFA=rbp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8] > > Arch default UnwindPlan: > This UnwindPlan originally sourced from x86_64 default unwind plan > This UnwindPlan is sourced from the compiler: no. > This UnwindPlan is valid at all instruction locations: no. > row[0]: 0: CFA=rbp+16 => rbp=[CFA-16] rsp=CFA+0 rip=[CFA-8] > > Arch default at entry point UnwindPlan: > This UnwindPlan originally sourced from x86_64 at-func-entry default > This UnwindPlan is sourced from the compiler: no. > This UnwindPlan is valid at all instruction locations: not specified. > row[0]: 0: CFA=rsp +8 => rsp=CFA+0 rip=[CFA-8] > > Thanks. I moved the enums and I will investigate that problem using these commands. https://reviews.llvm.org/D39681 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
