From 85efdc3a0d5a75ff753b63ac104ec1c3ae537f94 Mon Sep 17 00:00:00 2001
From: antangelo <contact@antangelo.com>
Date: Fri, 2 Aug 2024 19:15:47 -0400
Subject: [PATCH] wip

---
 .gitmodules               |  3 +++
 configure                 |  2 +-
 meson.build               | 13 +++++++++++++
 scripts/archive-source.sh |  1 +
 scripts/gen-license.py    |  6 ++++++
 thirdparty/backward-cpp   |  1 +
 thirdparty/meson.build    | 11 +++++++++++
 7 files changed, 36 insertions(+), 1 deletion(-)
 create mode 160000 thirdparty/backward-cpp
 create mode 100644 thirdparty/meson.build

diff --git a/.gitmodules b/.gitmodules
index 4118661130c..7a46e5cbfc6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -88,3 +88,6 @@
 [submodule "ui/thirdparty/httplib"]
 	path = ui/thirdparty/httplib
 	url = https://github.com/yhirose/cpp-httplib
+[submodule "thirdparty/backward-cpp"]
+	path = thirdparty/backward-cpp
+	url = https://github.com/bombela/backward-cpp.git
diff --git a/configure b/configure
index 761cd5e4313..5b351202f3c 100755
--- a/configure
+++ b/configure
@@ -237,7 +237,7 @@ else
     git_submodules_action="ignore"
 fi
 
-git_submodules="ui/keycodemapdb ui/thirdparty/imgui ui/thirdparty/implot ui/thirdparty/httplib util/xxHash tomlplusplus genconfig hw/xbox/nv2a/thirdparty/nv2a_vsh_cpu"
+git_submodules="ui/keycodemapdb ui/thirdparty/imgui ui/thirdparty/implot ui/thirdparty/httplib util/xxHash tomlplusplus genconfig hw/xbox/nv2a/thirdparty/nv2a_vsh_cpu thirdparty/backward-cpp"
 git="git"
 
 # Don't accept a target_list environment variable.
diff --git a/meson.build b/meson.build
index a6fd6fa5a3b..4a3979bf341 100644
--- a/meson.build
+++ b/meson.build
@@ -169,6 +169,16 @@ if 'dtrace' in get_option('trace_backends')
   endif
 endif
 
+libunwind = dependency('libunwind', required : false, kwargs : static_kwargs)
+if libunwind.found()
+  add_global_arguments('-DBACKWARD_HAS_LIBUNWIND=1', language : 'cpp')
+endif
+
+libdw = dependency('libdw', required : false, kwargs: static_kwargs)
+if libdw.found()
+  add_global_arguments('-DBACKWARD_HAS_DW=1', language : 'cpp')
+endif
+
 if get_option('iasl') == ''
   iasl = find_program('iasl', required: false)
 else
@@ -192,6 +202,8 @@ endif
 qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
 
 if targetos == 'windows'
+  # These are required for backward-cpp to produce a stack trace
+  qemu_ldflags += ['-ldbghelp', '-lucrt']
   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
   # Disable ASLR for debug builds to allow debugging with gdb
   if get_option('optimization') == '0'
@@ -3111,6 +3123,7 @@ subdir('hw')
 subdir('gdbstub')
 subdir('data')
 subdir('winpcap-loader')
+subdir('thirdparty')
 
 
 if enable_modules
diff --git a/scripts/archive-source.sh b/scripts/archive-source.sh
index 0496ebeb6c7..e71f4f9424c 100755
--- a/scripts/archive-source.sh
+++ b/scripts/archive-source.sh
@@ -30,6 +30,7 @@ submodules="dtc meson ui/keycodemapdb"
 submodules="$submodules tests/fp/berkeley-softfloat-3 tests/fp/berkeley-testfloat-3"
 submodules="$submodules ui/thirdparty/imgui ui/thirdparty/implot ui/thirdparty/httplib util/xxHash tomlplusplus genconfig" # xemu extras
 submodules="$submodules hw/xbox/nv2a/thirdparty/nv2a_vsh_cpu"
+submodules="$submodules thirdparty/backward-cpp"
 sub_deinit=""
 
 function cleanup() {
diff --git a/scripts/gen-license.py b/scripts/gen-license.py
index b71d4ecd56a..d4f1b78c874 100755
--- a/scripts/gen-license.py
+++ b/scripts/gen-license.py
@@ -231,6 +231,12 @@ def head(self):
 	submodule=Submodule('hw/xbox/nv2a/thirdparty/nv2a_vsh_cpu')
 	),
 
+Lib('backward-cpp', 'https://github.com/bombela/backward-cpp',
+    mit, 'https://raw.githubusercontent.com/bombela/backward-cpp/master/LICENSE.txt',
+    ships_static=all_platforms,
+    submodule=Submodule('thirdparty/backward-cpp')
+    ),
+
 #
 # Data files included with xemu
 #
diff --git a/thirdparty/backward-cpp b/thirdparty/backward-cpp
new file mode 160000
index 00000000000..51f0700452c
--- /dev/null
+++ b/thirdparty/backward-cpp
@@ -0,0 +1 @@
+Subproject commit 51f0700452cf71c57d43c2d028277b24cde32502
diff --git a/thirdparty/meson.build b/thirdparty/meson.build
new file mode 100644
index 00000000000..6560ca0bada
--- /dev/null
+++ b/thirdparty/meson.build
@@ -0,0 +1,11 @@
+if libunwind.found()
+  softmmu_ss.add(libunwind)
+endif
+
+if libdw.found()
+  softmmu_ss.add(libdw)
+endif
+
+softmmu_ss.add(files(
+  'backward-cpp/backward.cpp'
+))