From 0642a0910ca0fb8e392636254684b91637a7b542 Mon Sep 17 00:00:00 2001
From: Aqua-sama <aqua@iserlohn-fortress.net>
Date: Fri, 3 Jan 2020 21:58:20 +0200
Subject: PKGBUILD: add install stage for debug symbols

- make toggling breakpad work properly
---
 src/crashhandler.cpp | 44 +++++++++++++++++++++++++++++++-------------
 1 file changed, 31 insertions(+), 13 deletions(-)

(limited to 'src/crashhandler.cpp')

diff --git a/src/crashhandler.cpp b/src/crashhandler.cpp
index 194d04b..0c2fec7 100644
--- a/src/crashhandler.cpp
+++ b/src/crashhandler.cpp
@@ -8,31 +8,49 @@
 
 #include "crashhandler.h"
 #include "version.h"
-
-#ifdef BREAKPAD
-
-//#ifdef Q_OS_LINUX
+#include <QByteArray>
+#include <client/linux/handler/exception_handler.h>
 #include <unistd.h>
-//#endif // Q_OS_LINUX
-
 
-bool CrashHandler::dumpCallback(const google_breakpad::MinidumpDescriptor &descriptor, void *context, bool succeeded)
+// bool filter_callback (void*)
+// --> true: continue processing and write a minidump
+static bool minidumpCb(const google_breakpad::MinidumpDescriptor &descriptor, void *context, bool succeeded)
 {
     printf("Dump path: %s\n", descriptor.path());
 
-    auto *ctx = static_cast<BreakpadContext *>(context);
+    auto *ctx = static_cast<CrashHandler::Context *>(context);
     if(ctx != nullptr) {
-        if(ctx->handler != nullptr) {
+        if(!ctx->handler.empty()) {
             // fork and run 'handler master:commit path.dmp'
             pid_t pid = fork();
             if(pid == 0) {
-                char buffer[256];
-                snprintf(buffer, 256, "%s %s %s", ctx->handler, poi_Version, descriptor.path());
-                execlp("/bin/sh", "/bin/sh", "-c", buffer, (char *)nullptr);
+                // pathname program argument ... nullptr
+                execlp(ctx->handler.c_str(),
+                    ctx->handler.c_str(), "--crashd", ctx->dumppath.c_str(), "-c", descriptor.path(), poi_Version,
+                    (char *)nullptr);
             }
         }
     }
 
     return succeeded;
 }
-#endif
+
+bool CrashHandler::install_handler(CrashHandler::Context &ctx)
+{
+    if(ctx.dumppath.empty())
+        return false;
+
+    // Disable Chromium's crash handler so breakpad can capture crashes instead.
+    // This has to be done before QtWebEngine gets initialized.
+    const auto chromiumFlags = qgetenv("QTWEBENGINE_CHROMIUM_FLAGS");
+    if(!chromiumFlags.contains("disable-in-process-stack-traces")) {
+        qputenv("QTWEBENGINE_CHROMIUM_FLAGS", chromiumFlags + " --disable-in-process-stack-traces");
+    }
+
+    google_breakpad::MinidumpDescriptor descriptor(ctx.dumppath.c_str());
+
+    // minidump descriptor, filter callback, minidump callback, callback_context, install handler, server_fd
+    auto *eh = new google_breakpad::ExceptionHandler(descriptor, nullptr, minidumpCb, &ctx, true, -1);
+
+    return true;
+}
-- 
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