[RFC PATCH v3 08/22] objtool: Introduce STATIC_CHECK

madvenka
2023-02-02T07:42:56Z

From: "Madhavan T. Venkataraman" <madvenka@linux.microsoft.com>

Objtool currently implements static stack validation. Another method called
dynamic validation can be supported for other architectures.

Define STATIC_CHECK to select the files required for static validation
in objtool build.

Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com>
---
tools/objtool/Build | 6 +++---
tools/objtool/Makefile | 3 ++-
2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/objtool/Build b/tools/objtool/Build
index c4666d0b40ba..974290dc4aac 100644
--- a/tools/objtool/Build
+++ b/tools/objtool/Build
@@ -2,13 +2,13 @@ objtool-y += arch/$(SRCARCH)/

objtool-y += weak.o

-objtool-y += check.o
-objtool-y += special.o
+objtool-$(STATIC_CHECK) += check.o
+objtool-$(STATIC_CHECK) += special.o
objtool-y += builtin-check.o
objtool-y += cfi.o
objtool-y += insn.o
objtool-y += decode.o
-objtool-y += unwind_hints.o
+objtool-$(STATIC_CHECK) += unwind_hints.o
objtool-y += elf.o
objtool-y += objtool.o

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index a3a9cc24e0e3..797d1ea02db0 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -43,9 +43,10 @@ BUILD_ORC := n

ifeq ($(SRCARCH),x86)
BUILD_ORC := y
+ STATIC_CHECK := y
endif

-export BUILD_ORC
+export BUILD_ORC STATIC_CHECK
export srctree OUTPUT CFLAGS SRCARCH AWK
include $(srctree)/tools/build/Makefile.include

--
2.25.1