Build work (#1)

.github/workflows/build.yml

@@ -1,34 +1,70 @@
-name: build c++20
+name: build
 
 on:
   push:
   pull_request:
 
 jobs:
-  build-gcc:
+  build-linux:
     runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [g++-10, clang++-14]
+        target: [Debug]
+        std: [11, 20]
+        unwind: [
+          LIBCPPTRACE_GET_SYMBOLS_WITH_LIBBACKTRACE,
+          LIBCPPTRACE_GET_SYMBOLS_WITH_NOTHING,
+        ]
+        symbols: [
+          LIBCPPTRACE_UNWIND_WITH_EXECINFO,
+          LIBCPPTRACE_UNWIND_WITH_NOTHING,
+        ]
+        demangle: [
+          LIBCPPTRACE_DEMANGLE_WITH_CXXABI,
+          LIBCPPTRACE_DEMANGLE_WITH_NOTHING,
+        ]
     steps:
     - uses: actions/checkout@v2
     - name: dependencies
-      run: sudo apt install gcc-10 g++-10
+      run: sudo apt install gcc-10 g++-10 libgcc-10-dev
     - name: build
       run: |
            mkdir -p build
            cd build
-           cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_COMPILER=g++-10
+           cmake .. \
+            -DCMAKE_BUILD_TYPE=${{matrix.target}} \
+            -DCMAKE_CXX_COMPILER=${{matrix.compiler}} \
+            -DCMAKE_CXX_STANDARD=${{matrix.std}} \
+            -D${{matrix.unwind}}=On \
+            -D${{matrix.symbols}}=On \
+            -D${{matrix.demangle}}=On \
+            -DLIBCPP_BACKTRACE_PATH=/usr/lib/gcc/x86_64-linux-gnu/10/include/backtrace.h
            make
-  build-clang:
+  build-windows:
-    runs-on: ubuntu-22.04
-    steps:
-    - uses: actions/checkout@v2
-    - name: build
-      run: |
-           mkdir -p build
-           cd build
-           cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_COMPILER=clang++-14
-           make
-  build-msvc:
     runs-on: windows-2019
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [cl, clang++]
+        target: [Debug]
+        std: [11, 20]
+        unwind: [
+          # LIBCPPTRACE_GET_SYMBOLS_WITH_LIBBACKTRACE
+          LIBCPPTRACE_GET_SYMBOLS_WITH_NOTHING,
+        ]
+        symbols: [
+          LIBCPPTRACE_UNWIND_WITH_WINAPI,
+          LIBCPPTRACE_UNWIND_WITH_NOTHING,
+        ]
+        demangle: [
+          # LIBCPPTRACE_DEMANGLE_WITH_CXXABI,
+          LIBCPPTRACE_DEMANGLE_WITH_NOTHING,
+        ]
+        exclude:
+          - demangle: LIBCPPTRACE_DEMANGLE_WITH_CXXABI
+            compiler: cl
     steps:
     - uses: actions/checkout@v2
     - name: Enable Developer Command Prompt
@@ -37,5 +73,61 @@ jobs:
       run: |
            mkdir -p build
            cd build
-           cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_COMPILER=cl
+           cmake .. `
+            -DCMAKE_BUILD_TYPE=Debug `
+            -DCMAKE_CXX_COMPILER=${{matrix.compiler}} `
+            -DCMAKE_CXX_STANDARD=${{matrix.std}} `
+            -D${{matrix.unwind}}=On `
+            -D${{matrix.symbols}}=On `
+            -D${{matrix.demangle}}=On
+           msbuild .\libcpptrace.sln
+
+  build-linux-full-or-auto:
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [g++-10, clang++-14]
+        target: [Debug]
+        std: [11, 20]
+        config: ["-DLIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE=On", ""]
+    steps:
+    - uses: actions/checkout@v2
+    - name: dependencies
+      run: sudo apt install gcc-10 g++-10 libgcc-10-dev
+    - name: build
+      run: |
+           mkdir -p build
+           cd build
+           cmake .. \
+            -DCMAKE_BUILD_TYPE=${{matrix.target}} \
+            -DCMAKE_CXX_COMPILER=${{matrix.compiler}} \
+            -DCMAKE_CXX_STANDARD=${{matrix.std}} \
+            -DLIBCPP_BACKTRACE_PATH=/usr/lib/gcc/x86_64-linux-gnu/10/include/backtrace.h \
+            ${{matrix.config}}
            make
+  build-windows-full-or-auto:
+    runs-on: windows-2019
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [cl, clang++]
+        target: [Debug]
+        std: [11, 20]
+        config: [""]
+        exclude:
+          - config: -DLIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE=On # TODO
+    steps:
+    - uses: actions/checkout@v2
+    - name: Enable Developer Command Prompt
+      uses: ilammy/msvc-dev-cmd@v1.10.0
+    - name: build
+      run: |
+           mkdir -p build
+           cd build
+           cmake .. `
+            -DCMAKE_BUILD_TYPE=Debug `
+            -DCMAKE_CXX_COMPILER=${{matrix.compiler}} `
+            -DCMAKE_CXX_STANDARD=${{matrix.std}} `
+            ${{matrix.config}}
+           msbuild .\libcpptrace.sln

CMakeLists.txt

@@ -18,7 +18,6 @@ include(GNUInstallDirs)
 include(CheckCXXSourceCompiles)
 
 file(GLOB_RECURSE sources src/*.cpp)
-#message(STATUS "Sources" ${sources})
 add_library(cpptrace ${sources} include/cpptrace/cpptrace.hpp)
 
 target_include_directories(
@@ -48,15 +47,6 @@ target_compile_options(
   $<$<CXX_COMPILER_ID:MSVC>:/W4 /WX /permissive->
 )
 
-function(check_support var source includes libraries definitions)
-  set(CMAKE_REQUIRED_INCLUDES "${includes}")
-  list(APPEND CMAKE_REQUIRED_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
-  set(CMAKE_REQUIRED_LIBRARIES "${libraries}")
-  set(CMAKE_REQUIRED_DEFINITIONS "${definitions}")
-  check_cxx_source_compiles("#include \"${source}\"" ${var})
-  set(${var} ${${var}} PARENT_SCOPE)
-endfunction()
-
 option(LIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE "" OFF)
 
 option(LIBCPPTRACE_GET_SYMBOLS_WITH_LIBBACKTRACE "" OFF)
@@ -72,6 +62,36 @@ option(LIBCPPTRACE_UNWIND_WITH_NOTHING "" OFF)
 option(LIBCPPTRACE_DEMANGLE_WITH_CXXABI "" OFF)
 option(LIBCPPTRACE_DEMANGLE_WITH_NOTHING "" OFF)
 
+set(LIBCPP_BACKTRACE_PATH "" CACHE STRING "Path to backtrace.h, if the compiler doesn't already know it. Check /usr/lib/gcc/x86_64-linux-gnu/*/include.")
+
+if(NOT "${LIBCPP_BACKTRACE_PATH}" STREQUAL "")
+  # quotes used over <> because of a macro substitution issue where
+  # </usr/lib/gcc/x86_64-linux-gnu/12/include/backtrace.h>
+  # is expanded to
+  # </usr/lib/gcc/x86_64-1-gnu/12/include/backtrace.h>
+  string(CONCAT LIBCPP_BACKTRACE_PATH "\"" ${LIBCPP_BACKTRACE_PATH})
+  string(CONCAT LIBCPP_BACKTRACE_PATH ${LIBCPP_BACKTRACE_PATH} "\"")
+  #message(STATUS ${LIBCPP_BACKTRACE_PATH})
+  string(CONCAT LIBCPP_BACKTRACE_PATH_DEFINITION "-DLIBCPP_BACKTRACE_PATH=" ${LIBCPP_BACKTRACE_PATH})
+  #message(STATUS ${LIBCPP_BACKTRACE_PATH_DEFINITION})
+else()
+  set(LIBCPP_BACKTRACE_PATH_DEFINITION "")
+endif()
+
+function(check_support var source includes libraries definitions)
+  set(CMAKE_REQUIRED_INCLUDES "${includes}")
+  list(APPEND CMAKE_REQUIRED_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+  set(CMAKE_REQUIRED_LIBRARIES "${libraries}")
+  set(CMAKE_REQUIRED_DEFINITIONS "${definitions}")
+  string(CONCAT full_source "#include \"${source}\"" ${nonce})
+  check_cxx_source_compiles(${full_source} ${var})
+  set(${var} ${${var}} PARENT_SCOPE)
+endfunction()
+
+check_support(HAS_EXECINFO has_execinfo.cpp "" "" "")
+check_support(HAS_BACKTRACE has_backtrace.cpp "" "backtrace" "${LIBCPP_BACKTRACE_PATH_DEFINITION}")
+check_support(HAS_CXXABI has_cxxabi.cpp "" "" "")
+
 # =============================================== Autoconfig full dump ===============================================
 # If nothing is specified, attempt to use libbacktrace's full dump
 if(
@@ -85,8 +105,6 @@ if(
   )
 )
   # Attempt to auto-config
-  check_support(HAS_BACKTRACE has_backtrace.cpp "" "backtrace" "")
-
   if(HAS_BACKTRACE)
     set(LIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE On)
     message(STATUS "Cpptrace auto config: Using libbacktrace for the full trace")
@@ -105,14 +123,12 @@ if(
 )
   # Attempt to auto-config
   if(UNIX)
-    check_support(HAS_EXECINFO has_execinfo.cpp "" "" "")
-
     if(HAS_EXECINFO)
       set(LIBCPPTRACE_UNWIND_WITH_EXECINFO On)
       message(STATUS "Cpptrace auto config: Using execinfo.h for unwinding")
     else()
       set(LIBCPPTRACE_UNWIND_WITH_NOTHING On)
-      message(WARNING "Cpptrace auto config: <execinfo.h> doesn't seem to be supported, stack tracing will not work.")
+      message(FATAL_ERROR "Cpptrace auto config: <execinfo.h> doesn't seem to be supported, stack tracing will not work. To compile anyway set LIBCPPTRACE_UNWIND_WITH_NOTHING.")
     endif()
   elseif(WIN32)
     set(LIBCPPTRACE_UNWIND_WITH_WINAPI On)
@@ -133,13 +149,11 @@ if(
 )
   # Attempt to auto-config
   if(UNIX)
-    check_support(HAS_EXECINFO has_execinfo.cpp "" "" "")
+    if(HAS_BACKTRACE)
-
-    if(HAS_EXECINFO)
       set(LIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE On)
       message(STATUS "Cpptrace auto config: Using libbacktrace for symbols")
     else()
-      message(WARNING "Cpptrace auto config: No symbol back end could be automatically configured")
+      message(FATAL_ERROR "Cpptrace auto config: No symbol back end could be automatically configured. To compile anyway set LIBCPPTRACE_GET_SYMBOLS_WITH_NOTHING.")
     endif()
   elseif(WIN32)
     #set(LIBCPPTRACE_UNWIND_WITH_WINAPI On)
@@ -157,7 +171,6 @@ if(
     LIBCPPTRACE_DEMANGLE_WITH_NOTHING
   )
 )
-  check_support(HAS_CXXABI has_cxxabi.cpp "" "" "")
   if(HAS_CXXABI)
     set(LIBCPPTRACE_DEMANGLE_WITH_CXXABI On)
   else()
@@ -169,19 +182,34 @@ endif()
 
 # =============================================== Apply options to build ===============================================
 
+function(check_backtrace_error)
+  if(NOT HAS_BACKTRACE)
+    if(NOT "${LIBCPP_BACKTRACE_PATH}" STREQUAL "")
+      message(WARNING "Cpptrace: LIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE specified but libbacktrace doesn't appear installed or configured properly.")
+    else()
+      message(WARNING "Cpptrace: LIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE specified but libbacktrace doesn't appear installed or configured properly. You may need to specify LIBCPP_BACKTRACE_PATH.")
+    endif()
+  endif()
+endfunction()
+
 # Full
 if(LIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE)
+  check_backtrace_error()
   target_compile_definitions(cpptrace PUBLIC LIBCPPTRACE_FULL_TRACE_WITH_LIBBACKTRACE)
   target_link_libraries(cpptrace PRIVATE backtrace)
 endif()
 
 # Symbols
 if(LIBCPPTRACE_GET_SYMBOLS_WITH_LIBBACKTRACE)
+  check_backtrace_error()
   target_compile_definitions(cpptrace PUBLIC LIBCPPTRACE_GET_SYMBOLS_WITH_LIBBACKTRACE)
 endif()
 
 # Unwinding
 if(LIBCPPTRACE_UNWIND_WITH_EXECINFO)
+  if(NOT HAS_EXECINFO)
+    message(WARNING "Cpptrace: LIBCPPTRACE_UNWIND_WITH_EXECINFO specified but execinfo.h doesn't seem to be available.")
+  endif()
   target_compile_definitions(cpptrace PUBLIC LIBCPPTRACE_UNWIND_WITH_EXECINFO)
 endif()
 
@@ -191,6 +219,9 @@ endif()
 
 # Demangling
 if(LIBCPPTRACE_DEMANGLE_WITH_CXXABI)
+  if(NOT HAS_CXXABI)
+    message(WARNING "Cpptrace: LIBCPPTRACE_DEMANGLE_WITH_CXXABI specified but cxxabi.h doesn't seem to be available.")
+  endif()
   target_compile_definitions(cpptrace PUBLIC LIBCPPTRACE_DEMANGLE_WITH_CXXABI)
 endif()
 
@@ -198,6 +229,12 @@ if(LIBCPPTRACE_DEMANGLE_WITH_NOTHING)
   target_compile_definitions(cpptrace PUBLIC LIBCPPTRACE_DEMANGLE_WITH_NOTHING)
 endif()
 
+if(NOT "${LIBCPP_BACKTRACE_PATH}" STREQUAL "")
+  target_compile_definitions(cpptrace PUBLIC LIBCPP_BACKTRACE_PATH=${LIBCPP_BACKTRACE_PATH})
+endif()
+
+# ======================================================================================================================
+
 target_link_libraries(
   cpptrace
   PRIVATE

README.md

@@ -1,4 +1,6 @@
-# libcpptrace
+# Cpptrace
+
+[![build](https://github.com/jeremy-rifkin/cpptrace/actions/workflows/build.yml/badge.svg?branch=master)](https://github.com/jeremy-rifkin/cpptrace/actions/workflows/build.yml)
 
 Libcpptrace is a lightweight C++ stacktrace library supporting C++11 and greater on Linux, Unix, MacOS, and Windows
 (including cygwin / mingw environments). The goal: Make traces simple for once.

cmake/has_backtrace.cpp

@@ -1,4 +1,8 @@
+#ifdef LIBCPP_BACKTRACE_PATH
+#include LIBCPP_BACKTRACE_PATH
+#else
 #include <backtrace.h>
+#endif
 
 int main() {
     backtrace_state* state = backtrace_create_state(nullptr, true, nullptr, nullptr);

cmake/has_cxxabi.cpp

@@ -1,6 +1,6 @@
-#include <execinfo.h>
+#include <cxxabi.h>
 
 int main() {
-    void* frames[10];
+    int status;
-    int size = backtrace(frames, 10);
+    abi::__cxa_demangle("_Z3foov", nullptr, nullptr, &status);
 }

cmake/has_execinfo.cpp

@@ -1,5 +1,6 @@
-#include <backtrace.h>
+#include <execinfo.h>
 
 int main() {
-    backtrace_state* state = backtrace_create_state(nullptr, true, nullptr, nullptr);
+    void* frames[10];
+    backtrace(frames, 10);
 }

src/demangle/demangle_with_nothing.cpp

@@ -3,8 +3,6 @@
 #include <cpptrace/cpptrace.hpp>
 #include "libcpp_demangle.hpp"
 
-#include <cxxabi.h>
-
 #include <cstdlib>
 #include <string>
 

src/full/full_trace_with_libbacktrace.cpp

@@ -6,7 +6,11 @@
 
 #include <vector>
 
+#ifdef LIBCPP_BACKTRACE_PATH
+#include LIBCPP_BACKTRACE_PATH
+#else
 #include <backtrace.h>
+#endif
 
 namespace cpptrace {
     namespace detail {

src/symbols/libcpp_symbols.hpp

@@ -1,5 +1,5 @@
-#ifndef LIBCPP_SYMBOLIZE_HPP
+#ifndef LIBCPP_SYMBOLS_HPP
-#define LIBCPP_SYMBOLIZE_HPP
+#define LIBCPP_SYMBOLS_HPP
 
 #include <cpptrace/cpptrace.hpp>
 
@@ -10,7 +10,7 @@ namespace cpptrace {
     namespace detail {
         class symbolizer {
             struct impl;
-            std::unique_ptr<impl> impl;
+            std::unique_ptr<impl> pimpl;
         public:
             symbolizer();
             ~symbolizer();

src/symbols/symbols_with_libbacktrace.cpp

@@ -1,16 +1,33 @@
 #ifdef LIBCPPTRACE_GET_SYMBOLS_WITH_LIBBACKTRACE
 
 #include <cpptrace/cpptrace.hpp>
-#include "libcpp_symbolize.hpp"
+#include "libcpp_symbols.hpp"
 #include "../platform/libcpp_program_name.hpp"
 
 #include <memory>
 #include <vector>
 
+#ifdef LIBCPP_BACKTRACE_PATH
+#include LIBCPP_BACKTRACE_PATH
+#else
 #include <backtrace.h>
+#endif
 
 namespace cpptrace {
     namespace detail {
+        int full_callback(void* data, uintptr_t address, const char* file, int line, const char* symbol) {
+            stacktrace_frame& frame = *static_cast<stacktrace_frame*>(data);
+            frame.address = address;
+            frame.line = line;
+            frame.filename = file ? file : "";
+            frame.symbol = symbol ? symbol : "";
+            return 0;
+        }
+
+        void error_callback(void*, const char*, int) {
+            // nothing at the moment
+        }
+
         backtrace_state* get_backtrace_state() {
             // backtrace_create_state must be called only one time per program
             static backtrace_state* state = nullptr;
@@ -22,26 +39,6 @@ namespace cpptrace {
             return state;
         }
 
-        int full_callback(void* data, uintptr_t address, const char* file, int line, const char* symbol) {
-            stacktrace_frame& frame = *static_cast<stacktrace_frame*>(data);
-            data.address = address;
-            data.line = line;
-            data.filename = file ? file : "";
-            data.symbol = symbol ? symbol : "";
-            return 0;
-        }
-
-        void error_callback(void*, const char*, int) {
-            // nothing at the moment
-        }
-
-        symbolizer::symbolizer() : impl(std::make_unique<impl>()) {}
-        symbolizer::~symbolizer() = default;
-
-        stacktrace_frame symbolizer::resolve_frame(void* addr) {
-            impl->resolve_frame(addr);
-        }
-
         // TODO: Handle backtrace_pcinfo calling the callback multiple times on inlined functions
         struct symbolizer::impl {
             stacktrace_frame resolve_frame(void* addr) {
@@ -57,6 +54,13 @@ namespace cpptrace {
                 return frame;
             }
         };
+
+        symbolizer::symbolizer() : pimpl{new impl} {}
+        symbolizer::~symbolizer() = default;
+
+        stacktrace_frame symbolizer::resolve_frame(void* addr) {
+            return pimpl->resolve_frame(addr);
+        }
     }
 }
 

src/symbols/symbols_with_nothing.cpp

@@ -1,7 +1,7 @@
 #ifdef LIBCPPTRACE_GET_SYMBOLS_WITH_NOTHING
 
 #include <cpptrace/cpptrace.hpp>
-#include "libcpp_symbolize.hpp"
+#include "libcpp_symbols.hpp"
 #include "../platform/libcpp_program_name.hpp"
 
 #include <vector>

src/unwind/unwind_with_execinfo.cpp

@@ -11,7 +11,7 @@ namespace cpptrace {
     namespace detail {
         std::vector<void*> capture_frames() {
             std::vector<void*> frames(hard_max_frames, nullptr);
-            int n_frames = backtrace(bt.data(), hard_max_frames);
+            int n_frames = backtrace(frames.data(), hard_max_frames);
             frames.resize(n_frames);
             frames.shrink_to_fit();
             return frames;

src/unwind/unwind_with_winapi.cpp

@@ -11,11 +11,11 @@ namespace cpptrace {
     namespace detail {
         std::vector<void*> capture_frames() {
             // TODO: When does this need to be called? Can it be moved to the symbolizer?
-            SymSetOptions(SYMOPT_ALLOW_ABSOLUTE_SYMBOLS);
+            //SymSetOptions(SYMOPT_ALLOW_ABSOLUTE_SYMBOLS);
-            HANDLE proc = GetCurrentProcess();
+            //HANDLE proc = GetCurrentProcess();
-            if(!SymInitialize(proc, NULL, TRUE)) return {};
+            //if(!SymInitialize(proc, NULL, TRUE)) return {};
             std::vector<PVOID> addrs(hard_max_frames, nullptr);
-            int frames = CaptureStackBackTrace(n_skip, hard_max_frames, addrs.data(), NULL);
+            int frames = CaptureStackBackTrace(0, hard_max_frames, addrs.data(), NULL);
             addrs.resize(frames);
             addrs.shrink_to_fit();
             return addrs;