Add strip mode mini-debug-info.
Mini-debug-info strip mode strips most debug information, but
maintains minimal debugging information similar to
https://sourceware.org/gdb/onlinedocs/gdb/MiniDebugInfo.html.
Bug: 27923447
Change-Id: I0405f0b3c33cb3cadeafbd22ce94d645c4dbe7b9
diff --git a/core/dynamic_binary.mk b/core/dynamic_binary.mk
index 7ed5c35..f11803d 100644
--- a/core/dynamic_binary.mk
+++ b/core/dynamic_binary.mk
@@ -121,6 +121,7 @@
$(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP)
$(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY)
+$(strip_output): PRIVATE_NM := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NM)
$(strip_output): PRIVATE_READELF := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_READELF)
ifeq ($(my_strip_module),no_debuglink)
$(strip_output): PRIVATE_NO_DEBUGLINK := true
@@ -128,7 +129,11 @@
$(strip_output): PRIVATE_NO_DEBUGLINK :=
endif
-ifneq ($(filter true no_debuglink,$(my_strip_module)),)
+ifeq ($(my_strip_module),mini-debug-info)
+# Strip the binary, but keep debug frames and symbol table in a compressed .gnu_debugdata section.
+$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NM)
+ $(transform-to-stripped-keep-mini-debug-info)
+else ifneq ($(filter true no_debuglink,$(my_strip_module)),)
# Strip the binary
$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP)
$(transform-to-stripped)