MantisBT - CMake

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Category

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Date Submitted

Last Update

0016048

CMake

public

2016-04-01 15:22

2016-06-10 14:21

Reporter

arlbranch

Assigned To

Priority

high

Severity

crash

Reproducibility

always

Status

closed

Resolution

duplicate

Platform

x86_64

Linux

OS Version

4.4.5-1-ARCH

Product Version

CMake 3.5.1

Target Version

Fixed in Version

Summary

0016048: Segfault on target_link_libraries() with aliased target from another subdirectory

Description

CMake crashes with a segfault when target_link_libraries is used to add a dependency on an alias of a target that was added in a different subdirectory.

Complete Example
================
[branch@fortuna on /dev/pts/1] 1150 ~/repositories/test/cmake_segfault
$ cmake --version
cmake version 3.5.1

CMake suite maintained and supported by Kitware (kitware.com/cmake).
[branch@fortuna on /dev/pts/1] 1151 ~/repositories/test/cmake_segfault
$ ls -lR
.:
total 12
drwxr-xr-x 2 branch atlsdd 4096 Apr 1 13:37 alib/
drwxr-xr-x 2 branch atlsdd 4096 Apr 1 14:14 blib/
-rw-r--r-- 1 branch atlsdd 98 Apr 1 13:18 CMakeLists.txt

./alib:
total 4
-rw-r--r-- 1 branch atlsdd 87 Apr 1 13:24 CMakeLists.txt

./blib:
total 4
-rw-r--r-- 1 branch atlsdd 162 Apr 1 13:38 CMakeLists.txt
[branch@fortuna on /dev/pts/1] 1152 ~/repositories/test/cmake_segfault
$ cat CMakeLists.txt
cmake_minimum_required(VERSION 2.8.11)
project(top)
add_subdirectory(alib)
add_subdirectory(blib)
[branch@fortuna on /dev/pts/1] 1153 ~/repositories/test/cmake_segfault
$ cat alib/CMakeLists.txt
add_library(alib alib.c)
set_source_files_properties(alib.c PROPERTIES GENERATED TRUE)
[branch@fortuna on /dev/pts/1] 1154 ~/repositories/test/cmake_segfault
$ cat blib/CMakeLists.txt
add_library(blib blib.c)
set_source_files_properties(blib.c PROPERTIES GENERATED TRUE)

add_library(alib::alib ALIAS alib)
target_link_libraries(blib alib::alib)
[branch@fortuna on /dev/pts/1] 1155 ~/repositories/test/cmake_segfault
$ mkdir build && cd build
[branch@fortuna on /dev/pts/1] 1156 ~/repositories/test/cmake_segfault/build
$ cmake ..
-- The C compiler identification is GNU 5.3.0
-- The CXX compiler identification is GNU 5.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
Segmentation fault (core dumped)

Steps To Reproduce

1) create the project in the Description
2) run cmake against it

Additional Information

Also seen on MacOS.

This is a regression, cmake 3.4 does not crash.