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d="scan'208";a="60634184" From: Anthony PERARD To: CC: Anthony PERARD , Anthony PERARD , Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Wei Liu Subject: [XEN PATCH v8 39/47] RFC, no-VPATH: x86/boot: workaround gcc including the wrong file Date: Thu, 25 Nov 2021 13:39:58 +0000 Message-ID: <20211125134006.1076646-40-anthony.perard@citrix.com> X-Mailer: git-send-email 2.34.0 In-Reply-To: <20211125134006.1076646-1-anthony.perard@citrix.com> References: <20211125134006.1076646-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain From: Anthony PERARD we generate cmdline.S and reloc.S, so we should include those generated file as presented in the build tree, but for file included with quote, gcc will first look into the directory where the source file is, that is where head.S is located and thus include cmdline.S that is present in the source tree when it is dirty. But that the wrong file as we want to include the file from the build tree. Work around by using <> to include those file as if the come from the system, as gcc will first look in directories listed with '-I' on the command line. So now we also need to add -I when building in the source tree. Signed-off-by: Anthony PERARD --- xen/arch/x86/boot/Makefile | 4 +++- xen/arch/x86/boot/head.S | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/xen/arch/x86/boot/Makefile b/xen/arch/x86/boot/Makefile index 04ee9da83333..4fc6b1d8ffc2 100644 --- a/xen/arch/x86/boot/Makefile +++ b/xen/arch/x86/boot/Makefile @@ -8,7 +8,9 @@ targets += $(head-objs:.S=.o) head-objs := $(addprefix $(obj)/, $(head-objs)) ifdef building_out_of_srctree -$(obj)/head.o: CFLAGS-y += -iquote $(obj) +$(obj)/head.o: CFLAGS-y += -I$(obj) +else +$(obj)/head.o: CFLAGS-y += -I$(src) endif $(obj)/head.o: $(head-objs) diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S index dd1bea0d10b3..66acd2e9bfc0 100644 --- a/xen/arch/x86/boot/head.S +++ b/xen/arch/x86/boot/head.S @@ -772,10 +772,10 @@ trampoline_setup: lret cmdline_parse_early: -#include "cmdline.S" +#include reloc: -#include "reloc.S" +#include ENTRY(trampoline_start) #include "trampoline.S" -- Anthony PERARD