* Fixed for Linux, GCC 64bit.

README.md

@@ -116,6 +116,21 @@ EXCEPTION_INT_DIVIDE_BY_ZERO
 [4] 0x0000000000403388 qMain(int, char**) at C:\dev\asmCrashReport\build-example-Qt_5_9_1_MinGW_32bit/../example/main.cpp:61
 [5] 0x0000000000404592 ?? at qtmain_win.cpp:?
 ```
+Linux (GCC 64bit):
+```
+asmCrashReportTest v1.0.0
+04 янв. 2020 @ 22:46:22
+
+Caught SIGFPE: (integer divide by zero)
+
+/lib/x86_64-linux-gnu/libpthread.so.0(+0x13f40) [0x7f5fc497bf40]
+/home/pavelk.ru/Projects/asmCrashReport/build-test-Desktop_Qt_5_12_3_GCC_64bit-Release/asmCrashReportTest(crashTest::_divideByZero(int) у main.cpp:32 (discriminator 6)
+/home/pavelk.ru/Projects/asmCrashReport/build-test-Desktop_Qt_5_12_3_GCC_64bit-Release/asmCrashReportTest(crashTest::_function2(int) у main.cpp:40
+/home/pavelk.ru/Projects/asmCrashReport/build-test-Desktop_Qt_5_12_3_GCC_64bit-Release/asmCrashReportTest(crashTest::_function1() у main.cpp:45
+/home/pavelk.ru/Projects/asmCrashReport/build-test-Desktop_Qt_5_12_3_GCC_64bit-Release/asmCrashReportTest(crashTest::divideByZero() у main.cpp:14
+/home/pavelk.ru/Projects/asmCrashReport/build-test-Desktop_Qt_5_12_3_GCC_64bit-Release/asmCrashReportTest(main+0x157) [0x558bdea937f4]
+/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb) [0x7f5fc4596b6b]
+```
 
 Pull Requests
 ==

asmCrashReport.pri

@@ -25,6 +25,21 @@ CONFIG (release, release|debug) {
         LIBS += "-L$$PWD/Win/WinDebug" -lDbghelp
     }
 
+    linux {
+        QMAKE_CFLAGS_RELEASE -= -O2
+        QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO -= -O2
+        QMAKE_CXXFLAGS_RELEASE -= -O2
+        QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO -= -O2
+
+        QMAKE_CFLAGS_RELEASE += -g -fno-pie -fno-omit-frame-pointer -O0
+        QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO += -fno-pie -fno-omit-frame-pointer -O0
+        QMAKE_CXXFLAGS_RELEASE += -g -fno-pie -fno-omit-frame-pointer -O0
+        QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO += -fno-pie -fno-omit-frame-pointer -O0
+
+        QMAKE_LFLAGS_RELEASE  += -rdynamic
+        LIBS += -ldl
+    }
+
     mac {
         QMAKE_CFLAGS_RELEASE -= -O2
         QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO -= -O2

src/asmCrashReport.cpp

@@ -38,6 +38,10 @@
 #include <execinfo.h>
 #endif
 
+#ifdef Q_OS_LINUX
+#include <dlfcn.h>
+#endif
+
 #include "asmCrashReport.h"
 
 
@@ -106,17 +110,27 @@ namespace asmCrashReport
          "-arch", "x86_64",
          cAddrStr
       };
-#else
+#elif defined (Q_OS_WIN)
       // Uses addr2line
       const QString  cProgram = QStringLiteral( "%1/tools/addr2line" ).arg( QCoreApplication::applicationDirPath() );
-
       const QStringList  cArguments = {
          "-f",
          "-p",
          "-s",
          "-e", inProgramName,
          cAddrStr
       };
+#elif defined (Q_OS_LINUX)
+       // Uses addr2line
+       const QString  cProgram = QStringLiteral( "addr2line" );
+       const QStringList  cArguments = {
+           "-f",
+           "-p",
+           "-s",
+           "-C",
+           "-e", inProgramName,
+           cAddrStr
+       };
 #endif
 
       sProcess->setProgram( cProgram );
@@ -314,12 +328,17 @@ namespace asmCrashReport
 
          if ( !cSymbol.isNull() )
          {
+            #ifdef Q_OS_LINUX
+                Dl_info symbolInfo;
+                if ( dladdr(sStackTraces[i], &symbolInfo)!=0) {
+                    sStackTraces[i] = reinterpret_cast<void*>(qintptr(sStackTraces[i])-qintptr(symbolInfo.dli_fbase));
+                }
+            #endif
             QString  locationStr = _addressToLine( sProgramName, sStackTraces[i] );
 
             if ( !locationStr.isEmpty() )
             {
                int   matchStart = match.capturedStart( 1 );
-
                message.replace( matchStart, message.length() - matchStart, locationStr );
             }
          }
@@ -413,7 +432,10 @@ namespace asmCrashReport
    void _posixSetupSignalHandler()
    {
       // setup alternate stack
-      stack_t ss{ static_cast<void*>(sAlternateStack), SIGSTKSZ, 0 };
+      stack_t ss;
+      ss.ss_sp = static_cast<void*>(sAlternateStack);
+      ss.ss_size = SIGSTKSZ;
+      ss.ss_flags = 0;
 
       if ( sigaltstack( &ss, nullptr ) != 0 )
       {
@@ -430,6 +452,8 @@ namespace asmCrashReport
 #ifdef __APPLE__
       // backtrace() doesn't work on macOS when we use an alternate stack
       sigAction.sa_flags = SA_SIGINFO;
+#elif defined (Q_OS_LINUX)
+      sigAction.sa_flags = SA_SIGINFO;
 #else
       sigAction.sa_flags = SA_SIGINFO | SA_ONSTACK;
 #endif