From 474ada9267ccb98015991ee9d0d93fbb5da72034 Mon Sep 17 00:00:00 2001
From: Jan Beich <jbeich@FreeBSD.org>
Date: Mon, 20 Feb 2023 14:15:15 +0000
Subject: [PATCH] Unbreak CrashReporter on FreeBSD (#1589)

---
 CMakeLists.txt                |  6 ++++++
 meson.build                   |  1 +
 src/debug/CrashReporter.cpp   | 36 +++++++++++++++++++++++++++++++++++
 src/helpers/MiscFunctions.cpp |  4 ++++
 src/helpers/Vector2D.cpp      |  1 +
 src/meson.build               |  1 +
 6 files changed, 49 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 065f5894..b59b455e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -69,6 +69,12 @@ file(GLOB_RECURSE SRCFILES "src/*.cpp")
 
 add_executable(Hyprland ${SRCFILES})
 
+include(CheckLibraryExists)
+check_library_exists(execinfo backtrace "" HAVE_LIBEXECINFO)
+if(HAVE_LIBEXECINFO)
+    target_link_libraries(Hyprland PRIVATE execinfo)
+endif()
+
 IF(LEGACY_RENDERER MATCHES true)
     message(STATUS "Using the legacy GLES2 renderer!")
     add_definitions( -DLEGACY_RENDERER )
diff --git a/meson.build b/meson.build
index c2f80adc..0ae3d518 100644
--- a/meson.build
+++ b/meson.build
@@ -52,6 +52,7 @@ if not have_xwayland
 add_project_arguments('-DNO_XWAYLAND', language: 'cpp')
 endif
 
+backtrace_dep = cpp_compiler.find_library('execinfo', required: false)
 systemd_dep = dependency('libsystemd', required: get_option('systemd'))
 
 if get_option('systemd').enabled() 
diff --git a/src/debug/CrashReporter.cpp b/src/debug/CrashReporter.cpp
index 6876e390..5738f180 100644
--- a/src/debug/CrashReporter.cpp
+++ b/src/debug/CrashReporter.cpp
@@ -4,6 +4,10 @@
 #include <execinfo.h>
 #include <fstream>
 
+#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__)
+#include <sys/sysctl.h>
+#endif
+
 std::string getRandomMessage() {
 
     const std::vector<std::string>  MESSAGES = {"Sorry, didn't mean to...",
@@ -47,7 +51,11 @@ void CrashReporter::createAndSaveCrash() {
     finalCrashReport +=
         getFormat("\tSystem name: %s\n\tNode name: %s\n\tRelease: %s\n\tVersion: %s\n\n", unameInfo.sysname, unameInfo.nodename, unameInfo.release, unameInfo.version);
 
+#if defined(__DragonFly__) || defined(__FreeBSD__)
+    const std::string GPUINFO = execAndGet("pciconf -lv | fgrep -A4 vga");
+#else
     const std::string GPUINFO = execAndGet("lspci -vnn | grep VGA");
+#endif
 
     finalCrashReport += "GPU:\n\t" + GPUINFO;
 
@@ -61,12 +69,40 @@ void CrashReporter::createAndSaveCrash() {
 
     btSize           = backtrace(bt, 1024);
     btSymbols        = backtrace_symbols(bt, btSize);
+
+#if defined(KERN_PROC_PATHNAME)
+    int mib[] = {
+	CTL_KERN,
+#if defined(__NetBSD__)
+	KERN_PROC_ARGS,
+	-1,
+	KERN_PROC_PATHNAME,
+#else
+	KERN_PROC,
+	KERN_PROC_PATHNAME,
+	-1,
+#endif
+    };
+    u_int      miblen = sizeof(mib) / sizeof(mib[0]);
+    char       exe[PATH_MAX] = "";
+    size_t     sz = sizeof(exe);
+    sysctl(mib, miblen, &exe, &sz, NULL, 0);
+    const auto FPATH = std::filesystem::canonical(exe);
+#elif defined(__OpenBSD__)
+    // Neither KERN_PROC_PATHNAME nor /proc are supported
+    const auto FPATH = std::filesystem::canonical("/usr/local/bin/Hyprland");
+#else
     const auto FPATH = std::filesystem::canonical("/proc/self/exe");
+#endif
 
     for (size_t i = 0; i < btSize; ++i) {
         finalCrashReport += getFormat("\t#%i | %s\n", i, btSymbols[i]);
 
+#ifdef __clang__
+        const auto CMD       = getFormat("llvm-addr2line -e %s -f 0x%lx", FPATH.c_str(), (uint64_t)bt[i]);
+#else
         const auto CMD       = getFormat("addr2line -e %s -f 0x%lx", FPATH.c_str(), (uint64_t)bt[i]);
+#endif
         const auto ADDR2LINE = replaceInString(execAndGet(CMD.c_str()), "\n", "\n\t\t");
         finalCrashReport += "\t\t" + ADDR2LINE.substr(0, ADDR2LINE.length() - 2);
     }
diff --git a/src/helpers/MiscFunctions.cpp b/src/helpers/MiscFunctions.cpp
index dcc1efbd..10d59316 100644
--- a/src/helpers/MiscFunctions.cpp
+++ b/src/helpers/MiscFunctions.cpp
@@ -412,7 +412,11 @@ void logSystemInfo() {
 
     Debug::log(NONE, "\n");
 
+#if defined(__DragonFly__) || defined(__FreeBSD__)
+    const std::string GPUINFO = execAndGet("pciconf -lv | fgrep -A4 vga");
+#else
     const std::string GPUINFO = execAndGet("lspci -vnn | grep VGA");
+#endif
     Debug::log(LOG, "GPU information:\n%s\n", GPUINFO.c_str());
 
     if (GPUINFO.contains("NVIDIA")) {
diff --git a/src/helpers/Vector2D.cpp b/src/helpers/Vector2D.cpp
index 3ab3ce43..afd8b22a 100644
--- a/src/helpers/Vector2D.cpp
+++ b/src/helpers/Vector2D.cpp
@@ -1,5 +1,6 @@
 #include "Vector2D.hpp"
 #include <algorithm>
+#include <cmath>
 
 Vector2D::Vector2D(double xx, double yy) {
     x = xx;
diff --git a/src/meson.build b/src/meson.build
index d7b1ec22..6c018e12 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -14,6 +14,7 @@ executable('Hyprland', src,
     dependency('xkbcommon'),
     dependency('libinput'),
     xcb_dep,
+    backtrace_dep,
     systemd_dep,
 
     dependency('pixman-1'),