diff mbox series

MIPS: fix build on non-linux hosts

Message ID 20190619140818.44022-1-ldir@darbyshire-bryant.me.uk (mailing list archive)
State Mainlined
Commit 1196364f21ffe5d1e6d83cafd6a2edb89404a3ae
Headers show
Series MIPS: fix build on non-linux hosts | expand

Commit Message

Kevin 'ldir' Darbyshire-Bryant June 19, 2019, 2:08 p.m. UTC
calc_vmlinuz_load_addr.c requires SZ_64K to be defined for alignment
purposes.  It included "../../../../include/linux/sizes.h" to define
that size, however "sizes.h" tries to include <linux/const.h> which
assumes linux system headers.  These may not exist eg. the following
error was encountered when building Linux for OpenWrt under macOS:

In file included from arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:16:
arch/mips/boot/compressed/../../../../include/linux/sizes.h:11:10: fatal error: 'linux/const.h' file not found
         ^~~~~~~~~~

Change makefile to force building on local linux headers instead of
system headers.  Also change eye-watering relative reference in include
file spec.

Thanks to Jo-Philip Wich & Petr Štetiar for assistance in tracking this
down & fixing.

Suggested-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
---
 arch/mips/boot/compressed/Makefile                 | 2 ++
 arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

Comments

Paul Burton June 20, 2019, 9:54 p.m. UTC | #1
Hello,

Kevin Darbyshire-Bryant wrote:
> calc_vmlinuz_load_addr.c requires SZ_64K to be defined for alignment
> purposes.  It included "../../../../include/linux/sizes.h" to define
> that size, however "sizes.h" tries to include <linux/const.h> which
> assumes linux system headers.  These may not exist eg. the following
> error was encountered when building Linux for OpenWrt under macOS:
> 
> In file included from arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:16:
> arch/mips/boot/compressed/../../../../include/linux/sizes.h:11:10: fatal error: 'linux/const.h' file not found
> ^~~~~~~~~~
> 
> Change makefile to force building on local linux headers instead of
> system headers.  Also change eye-watering relative reference in include
> file spec.
> 
> Thanks to Jo-Philip Wich & Petr Å tetiar for assistance in tracking this
> down & fixing.
> 
> Suggested-by: Jo-Philipp Wich <jo@mein.io>
> Signed-off-by: Petr Å tetiar <ynezz@true.cz>
> Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>

Applied to mips-fixes.

Thanks,
    Paul

[ This message was auto-generated; if you believe anything is incorrect
  then please email paul.burton@mips.com to report it. ]
diff mbox series

Patch

diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 3c453a1f1ff1..172801ed35b8 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -78,6 +78,8 @@  OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
 	$(call if_changed,objcopy)
 
+HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
+
 # Calculate the load address of the compressed kernel image
 hostprogs-y := calc_vmlinuz_load_addr
 
diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
index 240f1d12df75..080b926d2623 100644
--- a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
+++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
@@ -9,7 +9,7 @@ 
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "../../../../include/linux/sizes.h"
+#include <linux/sizes.h>
 
 int main(int argc, char *argv[])
 {