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-rw-r--r--src/asan-options/asan-options.cc17
-rw-r--r--src/meson.build11
-rw-r--r--src/nix/meson.build1
3 files changed, 28 insertions, 1 deletions
diff --git a/src/asan-options/asan-options.cc b/src/asan-options/asan-options.cc
new file mode 100644
index 000000000..c4cf360af
--- /dev/null
+++ b/src/asan-options/asan-options.cc
@@ -0,0 +1,17 @@
+/// @file This is very bothersome code that has to be included in every
+/// executable to get the correct default ASan options. I am so sorry.
+
+extern "C" [[gnu::retain]] const char *__asan_default_options()
+{
+ // We leak a bunch of memory knowingly on purpose. It's not worthwhile to
+ // diagnose that memory being leaked for now.
+ //
+ // Instruction bytes are useful for finding the actual code that
+ // corresponds to an ASan report.
+ //
+ // TODO: setting log_path=asan.log or not: neither works, since you can't
+ // write to the fs in certain places in the testsuite, but you also cannot
+ // write arbitrarily to stderr in other places so the reports get eaten.
+ // pain 🥖
+ return "halt_on_error=1:abort_on_error=1:detect_leaks=0:print_summary=1:dump_instruction_bytes=1";
+}
diff --git a/src/meson.build b/src/meson.build
index 3fc5595b8..e918ae392 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -12,10 +12,19 @@ subdir('libmain')
# libcmd depends on everything
subdir('libcmd')
-
# The rest of the subdirectories aren't separate components,
# just source files in another directory, so we process them here.
+# Static library that just sets default ASan options. It needs to be included
+# in every executable.
+asanoptions = static_library(
+ 'libasanoptions',
+ files('asan-options/asan-options.cc'),
+)
+libasanoptions = declare_dependency(
+ link_whole: asanoptions
+)
+
build_remote_sources = files(
'build-remote/build-remote.cc',
)
diff --git a/src/nix/meson.build b/src/nix/meson.build
index 22f148fcb..97387e402 100644
--- a/src/nix/meson.build
+++ b/src/nix/meson.build
@@ -80,6 +80,7 @@ nix = executable(
profiles_md_gen,
nix2_commands_sources,
dependencies : [
+ libasanoptions,
liblixcmd,
liblixutil_mstatic,
liblixstore_mstatic,