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-rw-r--r--scripts/Makefile.debug44
1 files changed, 44 insertions, 0 deletions
diff --git a/scripts/Makefile.debug b/scripts/Makefile.debug
new file mode 100644
index 0000000000..059ff38fe0
--- /dev/null
+++ b/scripts/Makefile.debug
@@ -0,0 +1,44 @@
+DEBUG_CFLAGS :=
+DEBUG_RUSTFLAGS :=
+
+debug-flags-y := -g
+
+ifdef CONFIG_DEBUG_INFO_SPLIT
+DEBUG_CFLAGS += -gsplit-dwarf
+endif
+
+debug-flags-$(CONFIG_DEBUG_INFO_DWARF4) += -gdwarf-4
+debug-flags-$(CONFIG_DEBUG_INFO_DWARF5) += -gdwarf-5
+ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_AS_IS_GNU),yy)
+# Clang does not pass -g or -gdwarf-* option down to GAS.
+# Add -Wa, prefix to explicitly specify the flags.
+KBUILD_AFLAGS += $(addprefix -Wa$(comma), $(debug-flags-y))
+endif
+DEBUG_CFLAGS += $(debug-flags-y)
+KBUILD_AFLAGS += $(debug-flags-y)
+
+ifdef CONFIG_DEBUG_INFO_REDUCED
+DEBUG_CFLAGS += -fno-var-tracking
+DEBUG_RUSTFLAGS += -Cdebuginfo=1
+ifdef CONFIG_CC_IS_GCC
+DEBUG_CFLAGS += -femit-struct-debug-baseonly
+endif
+else
+DEBUG_RUSTFLAGS += -Cdebuginfo=2
+endif
+
+ifdef CONFIG_DEBUG_INFO_COMPRESSED_ZLIB
+DEBUG_CFLAGS += -gz=zlib
+KBUILD_AFLAGS += -gz=zlib
+KBUILD_LDFLAGS += --compress-debug-sections=zlib
+else ifdef CONFIG_DEBUG_INFO_COMPRESSED_ZSTD
+DEBUG_CFLAGS += -gz=zstd
+KBUILD_AFLAGS += -gz=zstd
+KBUILD_LDFLAGS += --compress-debug-sections=zstd
+endif
+
+KBUILD_CFLAGS += $(DEBUG_CFLAGS)
+export DEBUG_CFLAGS
+
+KBUILD_RUSTFLAGS += $(DEBUG_RUSTFLAGS)
+export DEBUG_RUSTFLAGS