On 03/30/2017 10:53 PM, Lv Zheng wrote: > _LINUX: used to detect a target build is a linux kernel/application. > __linux__: used to detect a build is on a linux hosts. > > Thus we can see: if a linux kernel build is performed on environments other > than linux hosts, __linux__ may not be defined by the compiler and _LINUX > cannot cover linux kernel resident ACPICA files, as it's only defined in > <linux/acpi.h> and hence only allows non ACPICA kernel files to correctly > include aclinux.h. > As a conclusion, we don't actually support such build. > > This patch adds -D_LINUX for ACPICA files so that kernel builds on any > hosts can use unified _LINUX as a linux kernel target indication to > correctly include aclinux.h. > > Cc: Al Stone <ah3@xxxxxxxxxx> > Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> > --- > drivers/acpi/acpica/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile > index 32d93ed..dea6530 100644 > --- a/drivers/acpi/acpica/Makefile > +++ b/drivers/acpi/acpica/Makefile > @@ -2,7 +2,7 @@ > # Makefile for ACPICA Core interpreter > # > > -ccflags-y := -Os -DBUILDING_ACPICA > +ccflags-y := -Os -D_LINUX -DBUILDING_ACPICA > ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT > > # use acpi.o to put all files here into acpi.o modparam namespace > These patches do solve the particular compilation problem I was having (targeting an embedded arm64 system), so thank you for that. The build test obviously needs fixing, but with the Linaro aarch64-elf compilers, and the defconfig, Tested-by: Al Stone <ahs3@xxxxxxxxxx> -- ciao, al ----------------------------------- Al Stone Software Engineer Red Hat, Inc. ahs3@xxxxxxxxxx ----------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
