The following commit has been merged into the objtool/core branch of tip:
Commit-ID: 32b504854bd96f707a03c6ddecb0af9d7fbc4775
Gitweb: https://git.kernel.org/tip/32b504854bd96f707a03c6ddecb0af9d7fbc4775
Author: HONG Yifan <elsk@xxxxxxxxxx>
AuthorDate: Tue, 08 Oct 2024 23:47:17
Committer: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
CommitterDate: Thu, 17 Oct 2024 15:13:06 -07:00
objtool: Also include tools/include/uapi
When building objtool against a sysroot that contains a stripped down
version of the UAPI headers, the following error happens:
In file included from arch/x86/decode.c:10:
In file included from .../tools/arch/x86/include/asm/insn.h:10:
In file included from <sysroot>/include/asm/byteorder.h:9:
In file included from <sysroot>/include/linux/byteorder/little_endian.h:15:
In file included from <sysroot>/include/linux/stddef.h:9:
In file included from .../tools/include/linux/compiler_types.h:36:
.../tools/include/linux/compiler-gcc.h:3:2: error: "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
3 | #error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
| ^
1 error generated.
As hinted by the error, this is because <sysroot>/include/linux/stddef.h
(a stripped-down version of uapi/include/linux/stddef.h) includes
linux/compiler_types.h directly. However, this gets resolved to
tools/include/linux/compiler_types.h, which is not expected to be
included directly.
To resolve this, I added tools/include/uapi to the include paths when
building objtool. With this trick, linux/stddef.h is resolved to
tools/include/uapi/linux/stddef.h, which doesn't include
linux/compiler_types.h.
Signed-off-by: HONG Yifan <elsk@xxxxxxxxxx>
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
tools/objtool/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index bf7f7f8..f56e277 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -24,6 +24,7 @@ LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lel
all: $(OBJTOOL)
INCLUDES := -I$(srctree)/tools/include \
+ -I$(srctree)/tools/include/uapi \
-I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
-I$(srctree)/tools/arch/$(SRCARCH)/include \
-I$(srctree)/tools/objtool/include \
|