[lldb-dev] [Bug 39500] New: Segfault when evaluating STL expression
https://bugs.llvm.org/show_bug.cgi?id=39500
Bug ID: 39500
Summary: Segfault when evaluating STL expression
Product: lldb
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
Assignee: lldb-dev@lists.llvm.org
Reporter: ldio...@apple.com
CC: llvm-b...@lists.llvm.org
When evaluating some STL expression, lldb segfaults. This only seems to happen
with a recent Clang and LLDB, which may be related to the removal of
`always_inline` from libc++ shipped with recent Clangs.
This bug is a reduction of the STL-related failure that started happening in
http://green.lab.llvm.org/green/job/lldb-cmake/11896.
Here's the reproduction (with Trunk Clang and LLDB):
```
#!/bin/sh
cat > t.cpp <
#include
#include
int main() {
std::string hello_world = "Hello World!";
std::map associative_array;
associative_array[hello_world] = 1;
associative_array.count(hello_world);
std::printf("before returning\n"); // Set break point at this line.
}
EOF
clang++ t.cpp -O0 -g
lldb a.out
```
Then, from within lldb:
```
breakpoint set -l 9
run
expr associative_array.count(hello_world)
expr associative_array.count(hello_world)
```
The evaluation works the first time around, but fails the second time around
with a segfault.
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[lldb-dev] [Bug 39500] Segfault when evaluating STL expression
https://bugs.llvm.org/show_bug.cgi?id=39500 Davide Italiano changed: What|Removed |Added Assignee|lldb-dev@lists.llvm.org |syaghm...@gmail.com -- You are receiving this mail because: You are the assignee for the bug.___ lldb-dev mailing list lldb-dev@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
[lldb-dev] November LLVM bay-area social is this Thursday!
We'll be at Tied House as usual, starting on Thursday the 1st at 7pm! If you can, help us plan and RSVP here: https://www.meetup.com/LLVM-Bay-Area-Social/events/kncsjlyxpbcb/ See everyone there! ___ lldb-dev mailing list lldb-dev@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
[lldb-dev] LLVM 7.0.1-rc1 release on Thursday
Hi, I'm planning to do the LLVM 7.0.1-rc1 release on Thursday. This is really just a snapshot release of the current release branch, but It's still important that it gets testing. You still have until Nov 21 to get patches into the final release, so you can keep sending me merge requests. I would also really like to get the gcc/clang abi mismatch bug[1] fixed for this release. If you have any suggestions for how to fix it, let me know. We actually need two different fixes, one for trunk and one for the release_70 branch which is able to maintain the current ABI. Thanks, Tom [1] https://bugs.llvm.org/show_bug.cgi?id=39427 ___ lldb-dev mailing list lldb-dev@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
