Force shared library under libbacktrace, allow shared or static otherwise (#22)

.github/workflows/cmake-integration.yml

@@ -32,7 +32,7 @@ jobs:
            tag=$(git rev-parse --abbrev-ref HEAD)
            mkdir build
            cd build
-           cmake .. -DCMAKE_BUILD_TYPE=Debug -DBUILD_SHARED_LIBS=On
+           cmake .. -DCMAKE_BUILD_TYPE=Debug
            sudo make -j install
            cd ../..
            cp -rv cpptrace/test/findpackage-integration .
@@ -64,7 +64,7 @@ jobs:
            tag=$(git rev-parse --abbrev-ref HEAD)
            mkdir build
            cd build
-           cmake .. -DCMAKE_BUILD_TYPE=Debug -DBUILD_SHARED_LIBS=On
+           cmake .. -DCMAKE_BUILD_TYPE=Debug
            sudo make -j install
            cd ../..
            cp -rv cpptrace/test/findpackage-integration .

.github/workflows/performance-tests.yml

@@ -35,13 +35,12 @@ jobs:
             -DCMAKE_CXX_STANDARD=${{matrix.std}} \
             ${{matrix.config}} \
             -DCPPTRACE_BACKTRACE_PATH=/usr/lib/gcc/x86_64-linux-gnu/11/include/backtrace.h \
-            -DCPPTRACE_BUILD_SPEEDTEST=On \
+            -DCPPTRACE_BUILD_SPEEDTEST=On
-            -DBUILD_SHARED_LIBS=On
            make -j
     - name: test
       working-directory: build
       run: |
-           ./speedtest | python3 ../ci/speedtest.py ${{matrix.config}}
+           ./speedtest | python3 ../ci/speedtest.py ${{matrix.compiler}} ${{matrix.config}}
   # TODO: For some reason this is slow on github's runner
   #performancetest-windows:
   #  runs-on: windows-2019
@@ -67,8 +66,7 @@ jobs:
   #          -DCMAKE_CXX_COMPILER=${{matrix.compiler}} `
   #          -DCMAKE_CXX_STANDARD=${{matrix.std}} `
   #          ${{matrix.config}} `
-  #          -DCPPTRACE_BUILD_SPEEDTEST=On `
+  #          -DCPPTRACE_BUILD_SPEEDTEST=On
-  #          -DBUILD_SHARED_LIBS=On
   #         msbuild .\cpptrace.sln
   #  - name: test
   #    working-directory: build

CMakeLists.txt

@@ -10,46 +10,10 @@ project(
   LANGUAGES CXX
 )
 
-set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
-
-set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-
 include(GNUInstallDirs)
 include(CheckCXXSourceCompiles)
 include(CheckCXXCompilerFlag)
 
-file(GLOB_RECURSE sources src/*.cpp)
-add_library(cpptrace ${sources} include/cpptrace/cpptrace.hpp)
-
-target_include_directories(
-  cpptrace
-  PUBLIC
-  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include/>
-  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/cpptrace/>
-)
-
-# TODO
-target_compile_features(
-  cpptrace
-  PUBLIC
-  cxx_std_11
-)
-
-set_target_properties(
-  cpptrace
-  PROPERTIES
-  CXX_STANDARD_REQUIRED TRUE
-  CXX_EXTENSIONS OFF
-)
-
-target_compile_options(
-  cpptrace
-  PRIVATE
-  $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-Wall -Wextra -Werror=return-type -Wshadow -Wundef>
-  $<$<CXX_COMPILER_ID:GNU>:-Wuseless-cast -Wnonnull-compare>
-  $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX /permissive->
-)
-
 option(CPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE "" OFF)
 option(CPPTRACE_FULL_TRACE_WITH_STACKTRACE "" OFF)
 
@@ -252,6 +216,50 @@ else()
   #message(STATUS "Manual demangling back-end specified")
 endif()
 
+# =============================================== Now define the library ===============================================
+
+set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+file(GLOB_RECURSE sources src/*.cpp)
+
+# TODO: This feels like a hack.
+if(CPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE OR CPPTRACE_GET_SYMBOLS_WITH_LIBBACKTRACE)
+  add_library(cpptrace SHARED ${sources} include/cpptrace/cpptrace.hpp)
+else()
+  add_library(cpptrace ${sources} include/cpptrace/cpptrace.hpp)
+endif()
+
+target_include_directories(
+  cpptrace
+  PUBLIC
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include/>
+  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/cpptrace/>
+)
+
+# TODO
+target_compile_features(
+  cpptrace
+  PUBLIC
+  cxx_std_11
+)
+
+set_target_properties(
+  cpptrace
+  PROPERTIES
+  CXX_STANDARD_REQUIRED TRUE
+  CXX_EXTENSIONS OFF
+)
+
+target_compile_options(
+  cpptrace
+  PRIVATE
+  $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:-Wall -Wextra -Werror=return-type -Wshadow -Wundef>
+  $<$<CXX_COMPILER_ID:GNU>:-Wuseless-cast -Wnonnull-compare>
+  $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX /permissive->
+)
+
 # =============================================== Apply options to build ===============================================
 
 function(check_backtrace_error)
@@ -369,13 +377,6 @@ endif()
 
 # ======================================================================================================================
 
-#target_link_libraries(
-#  cpptrace
-#  PRIVATE
-#  #$<$<CXX_COMPILER_ID:MSVC>:dbghelp>
-#  #${CMAKE_DL_LIBS}
-#)
-
 if(CMAKE_BUILD_TYPE STREQUAL "")
   message(FATAL_ERROR "Setting CMAKE_BUILD_TYPE is required")
 endif()

README.md

@@ -62,7 +62,7 @@ git clone https://github.com/jeremy-rifkin/cpptrace.git
 # optional: git checkout <HASH or TAG>
 mkdir cpptrace/build
 cd cpptrace/build
-cmake .. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=On
+cmake .. -DCMAKE_BUILD_TYPE=Release
 make -j
 sudo make install
 ```
@@ -95,7 +95,7 @@ git clone https://github.com/jeremy-rifkin/cpptrace.git
 # optional: git checkout <HASH or TAG>
 mkdir cpptrace/build
 cd cpptrace/build
-cmake .. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=On
+cmake .. -DCMAKE_BUILD_TYPE=Release
 msbuild cpptrace.sln
 msbuild INSTALL.vcxproj
 ```
@@ -113,7 +113,7 @@ git clone https://github.com/jeremy-rifkin/cpptrace.git
 # optional: git checkout <HASH or TAG>
 mkdir cpptrace/build
 cd cpptrace/build
-cmake .. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=On -DCMAKE_INSTALL_PREFIX=$HOME/wherever
+cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$HOME/wherever
 make -j
 sudo make install
 ```

ci/speedtest.py

@@ -12,7 +12,10 @@ def main():
 
     dwarf4 = any(["DWARF4" in arg for arg in sys.argv[1:]])
     dwarf5 = any(["DWARF5" in arg for arg in sys.argv[1:]])
-    expect_slow = dwarf4
+    clang = any(["clang" in arg for arg in sys.argv[1:]])
+    # Somehow -gdwarf-4 clang is fast after a completely unrelated PR? Weird. Something to do with static linking...?
+    # https://github.com/jeremy-rifkin/cpptrace/pull/22
+    expect_slow = dwarf4 and not clang
 
     threshold = 100 # ms
 

ci/test-all-configs.py

@@ -157,8 +157,7 @@ def build(matrix):
             f"-D{matrix['symbols']}=On",
             f"-D{matrix['demangle']}=On",
             "-DCPPTRACE_BACKTRACE_PATH=/usr/lib/gcc/x86_64-linux-gnu/10/include/backtrace.h",
-            "-DCPPTRACE_BUILD_TEST=On",
+            "-DCPPTRACE_BUILD_TEST=On"
-            "-DBUILD_SHARED_LIBS=On"
         ]
         if matrix['symbols'] == "CPPTRACE_GET_SYMBOLS_WITH_LIBDL":
            args.append("-DCPPTRACE_BUILD_TEST_RDYNAMIC=On")
@@ -175,8 +174,7 @@ def build(matrix):
             f"-D{matrix['unwind']}=On",
             f"-D{matrix['symbols']}=On",
             f"-D{matrix['demangle']}=On",
-            "-DCPPTRACE_BUILD_TEST=On",
+            "-DCPPTRACE_BUILD_TEST=On"
-            "-DBUILD_SHARED_LIBS=On"
         ]
         if matrix["compiler"] == "g++":
             args.append("-GUnix Makefiles")
@@ -196,8 +194,7 @@ def build_full_or_auto(matrix):
             f"-DCMAKE_CXX_COMPILER={matrix['compiler']}",
             f"-DCMAKE_CXX_STANDARD={matrix['std']}",
             f"-DCPPTRACE_BACKTRACE_PATH=/usr/lib/gcc/x86_64-linux-gnu/10/include/backtrace.h",
-            "-DCPPTRACE_BUILD_TEST=On",
+            "-DCPPTRACE_BUILD_TEST=On"
-            "-DBUILD_SHARED_LIBS=On"
         ]
         if matrix["config"] != "":
             args.append(f"{matrix['config']}")
@@ -211,8 +208,7 @@ def build_full_or_auto(matrix):
             f"-DCMAKE_BUILD_TYPE={matrix['target']}",
             f"-DCMAKE_CXX_COMPILER={matrix['compiler']}",
             f"-DCMAKE_CXX_STANDARD={matrix['std']}",
-            "-DCPPTRACE_BUILD_TEST=On",
+            "-DCPPTRACE_BUILD_TEST=On"
-            "-DBUILD_SHARED_LIBS=On"
         ]
         if matrix["config"] != "":
             args.append(f"{matrix['config']}")