[xen staging] xen/arm: Include asm/asm-offsets.h and asm/macros.h on every assembly files

[patchbot@xxxxxxx]

commit 8d1ca2ac8d5763e72350b4f1ff34ae3276d99e4a
Author:     Julien Grall <jgrall@xxxxxxxxxx>
AuthorDate: Sat Jan 23 17:48:45 2021 +0000
Commit:     Julien Grall <jgrall@xxxxxxxxxx>
CommitDate: Sun Apr 18 18:59:54 2021 +0100

    xen/arm: Include asm/asm-offsets.h and asm/macros.h on every assembly files
    
    In a follow-up patch we may want to automatically replace some
    mnemonics (such as ret) with a different sequence.
    
    To ensure all the assembly files will include asm/macros.h it is best to
    automatically include it on single assembly. This can be done via
    config.h.
    
    It was necessary to include a few more headers as dependency:
      - <asm/asm_defns.h> to define sizeof_*
      - <xen/page-size.h> which is already a latent issue given STACK_ORDER
      rely on PAGE_SIZE.
    
    Unfortunately the build system will use -D__ASSEMBLY__ when generating
    the linker script. A new option -D__LINKER__ is introduceed and used for
    the linker script to avoid including headers (such as asm/macros.h) that
    may not be compatible with the syntax.
    
    Lastly, take the opportunity to remove both asm/asm-offsets.h and
    asm/macros.h from the various assembly files as they are now
    automagically included.
    
    Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
    Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
    Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/Makefile                | 2 +-
 xen/arch/arm/arm32/entry.S           | 1 -
 xen/arch/arm/arm32/head.S            | 1 -
 xen/arch/arm/arm32/proc-v7.S         | 1 -
 xen/arch/arm/arm64/debug-cadence.inc | 1 -
 xen/arch/arm/arm64/debug-pl011.inc   | 2 --
 xen/arch/arm/arm64/entry.S           | 2 --
 xen/arch/arm/arm64/head.S            | 2 --
 xen/arch/arm/arm64/smc.S             | 3 ---
 xen/include/asm-arm/config.h         | 6 ++++++
 10 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/xen/arch/arm/Makefile b/xen/arch/arm/Makefile
index 46e6a95fec..ca75f1040d 100644
--- a/xen/arch/arm/Makefile
+++ b/xen/arch/arm/Makefile
@@ -134,7 +134,7 @@ asm-offsets.s: $(TARGET_SUBARCH)/asm-offsets.c
        $(CC) $(filter-out -flto,$(c_flags)) -S -o $@ $<
 
 xen.lds: xen.lds.S
-       $(CPP) -P $(a_flags) -MQ $@ -o $@ $<
+       $(CPP) -P $(a_flags) -D__LINKER__ -MQ $@ -o $@ $<
 
 dtb.o: $(patsubst "%",%,$(CONFIG_DTB_FILE))
 
diff --git a/xen/arch/arm/arm32/entry.S b/xen/arch/arm/arm32/entry.S
index b228d44b19..f2f1bc7a31 100644
--- a/xen/arch/arm/arm32/entry.S
+++ b/xen/arch/arm/arm32/entry.S
@@ -1,4 +1,3 @@
-#include <asm/asm_defns.h>
 #include <asm/sysregs.h>
 #include <asm/regs.h>
 #include <asm/alternative.h>
diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S
index 50f019ed98..7178865f48 100644
--- a/xen/arch/arm/arm32/head.S
+++ b/xen/arch/arm/arm32/head.S
@@ -18,7 +18,6 @@
  */
 
 #include <asm/page.h>
-#include <asm/asm_defns.h>
 #include <asm/early_printk.h>
 
 #define ZIMAGE_MAGIC_NUMBER 0x016f2818
diff --git a/xen/arch/arm/arm32/proc-v7.S b/xen/arch/arm/arm32/proc-v7.S
index 46bfc7a907..1efde2d72d 100644
--- a/xen/arch/arm/arm32/proc-v7.S
+++ b/xen/arch/arm/arm32/proc-v7.S
@@ -17,7 +17,6 @@
  * GNU General Public License for more details.
  */
 
-#include <asm/asm_defns.h>
 #include <asm/arm32/processor.h>
 #include <asm/sysregs.h>
 
diff --git a/xen/arch/arm/arm64/debug-cadence.inc 
b/xen/arch/arm/arm64/debug-cadence.inc
index 7df0abe475..0b6f2e094e 100644
--- a/xen/arch/arm/arm64/debug-cadence.inc
+++ b/xen/arch/arm/arm64/debug-cadence.inc
@@ -17,7 +17,6 @@
  * GNU General Public License for more details.
  */
 
-#include <asm/asm_defns.h>
 #include <asm/cadence-uart.h>
 
 /*
diff --git a/xen/arch/arm/arm64/debug-pl011.inc 
b/xen/arch/arm/arm64/debug-pl011.inc
index 385deff49b..1928a2e3ff 100644
--- a/xen/arch/arm/arm64/debug-pl011.inc
+++ b/xen/arch/arm/arm64/debug-pl011.inc
@@ -16,8 +16,6 @@
  * GNU General Public License for more details.
  */
 
-#include <asm/asm_defns.h>
-
 /*
  * PL011 UART initialization
  * xb: register which containts the UART base address
diff --git a/xen/arch/arm/arm64/entry.S b/xen/arch/arm/arm64/entry.S
index 175ea2981e..ab9a65fc14 100644
--- a/xen/arch/arm/arm64/entry.S
+++ b/xen/arch/arm/arm64/entry.S
@@ -1,6 +1,4 @@
-#include <asm/asm_defns.h>
 #include <asm/current.h>
-#include <asm/macros.h>
 #include <asm/regs.h>
 #include <asm/alternative.h>
 #include <asm/smccc.h>
diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S
index f38a8dfca7..aa1f88c764 100644
--- a/xen/arch/arm/arm64/head.S
+++ b/xen/arch/arm/arm64/head.S
@@ -21,11 +21,9 @@
  */
 
 #include <asm/page.h>
-#include <asm/asm_defns.h>
 #include <asm/early_printk.h>
 #include <efi/efierr.h>
 #include <asm/arm64/efibind.h>
-#include <asm/arm64/macros.h>
 
 #define PT_PT     0xf7f /* nG=1 AF=1 SH=11 AP=01 NS=1 ATTR=111 T=1 P=1 */
 #define PT_MEM    0xf7d /* nG=1 AF=1 SH=11 AP=01 NS=1 ATTR=111 T=0 P=1 */
diff --git a/xen/arch/arm/arm64/smc.S b/xen/arch/arm/arm64/smc.S
index b0752be57e..91bae62dd4 100644
--- a/xen/arch/arm/arm64/smc.S
+++ b/xen/arch/arm/arm64/smc.S
@@ -13,9 +13,6 @@
  * GNU General Public License for more details.
  */
 
-#include <asm/asm_defns.h>
-#include <asm/macros.h>
-
 /*
  * void __arm_smccc_1_0_smc(register_t a0, register_t a1, register_t a2,
  *                          register_t a3, register_t a4, register_t a5,
diff --git a/xen/include/asm-arm/config.h b/xen/include/asm-arm/config.h
index 5c10c755db..c7b7791201 100644
--- a/xen/include/asm-arm/config.h
+++ b/xen/include/asm-arm/config.h
@@ -69,6 +69,7 @@
 #endif
 
 #include <xen/const.h>
+#include <xen/page-size.h>
 
 /*
  * Common ARM32 and ARM64 layout:
@@ -190,6 +191,11 @@ extern unsigned long frametable_virt_end;
 #define watchdog_disable() ((void)0)
 #define watchdog_enable()  ((void)0)
 
+#if defined(__ASSEMBLY__) && !defined(__LINKER__)
+#include <asm/asm_defns.h>
+#include <asm/macros.h>
+#endif
+
 #endif /* __ARM_CONFIG_H__ */
 /*
  * Local variables:
--
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