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From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/6] ARM: compressed: move xscale startup code into subroutine
Date: Mon,  5 Nov 2018 19:44:35 +0100	[thread overview]
Message-ID: <20181105184438.19494-4-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <20181105184438.19494-1-ard.biesheuvel@linaro.org>

Instead of relying on unspecified linker behavior, move the
XScale startup code into a subroutine and call it from the
location we expect the linker to put the code.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 arch/arm/boot/compressed/head-xscale.S | 7 ++++---
 arch/arm/boot/compressed/head.S        | 3 +++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/compressed/head-xscale.S b/arch/arm/boot/compressed/head-xscale.S
index 20fa44d59f82..89e14a55ec3d 100644
--- a/arch/arm/boot/compressed/head-xscale.S
+++ b/arch/arm/boot/compressed/head-xscale.S
@@ -8,10 +8,9 @@
 
 #include <linux/linkage.h>
 
-		.section        ".start", "ax"
-
-__XScale_start:
+		.text
 
+ENTRY(__XScale_start)
 		@ Preserve r8/r7 i.e. kernel entry values
 
 		@ Data cache might be active.
@@ -33,3 +32,5 @@ __XScale_start:
 		bic	r0, r0, #0x1000		@ clear Icache
 		mcr	p15, 0, r0, c1, c0, 0
 
+		mov	pc, lr
+ENDPROC(__XScale_start)
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index c5355f929cee..da93f419d1f4 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -219,6 +219,9 @@ not_angel:
 #ifdef CONFIG_ARCH_SA1100
 		bl	__SA1100_start
 #endif
+#ifdef CONFIG_CPU_XSCALE
+		bl	__XScale_start
+#endif
 
 #ifdef CONFIG_AUTO_ZRELADDR
 		/*
-- 
2.19.1

  parent reply	other threads:[~2018-11-05 18:44 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-05 18:44 [PATCH 0/6] ARM: compressed: clean up section layout and enable EFI debugging Ard Biesheuvel
2018-11-05 18:44 ` [PATCH 1/6] ARM: compressed: move sharpsl startup code into subroutine Ard Biesheuvel
2018-11-05 18:59   ` Russell King - ARM Linux
2018-11-05 19:07     ` Ard Biesheuvel
2018-11-05 19:13       ` Russell King - ARM Linux
2018-11-05 19:25   ` Nicolas Pitre
2018-11-05 19:35     ` Ard Biesheuvel
2018-11-05 18:44 ` [PATCH 2/6] ARM: compressed: move sa1100 " Ard Biesheuvel
2018-11-05 19:00   ` Russell King - ARM Linux
2018-11-05 18:44 ` Ard Biesheuvel [this message]
2018-11-05 19:00   ` [PATCH 3/6] ARM: compressed: move xscale " Russell King - ARM Linux
2018-11-05 18:44 ` [PATCH 4/6] ARM: compressed: move BE32 handling into head.S Ard Biesheuvel
2018-11-05 18:44 ` [PATCH 5/6] ARM: compressed: put zImage header and EFI header in dedicated section Ard Biesheuvel
2018-11-05 18:44 ` [PATCH 6/6] ARM: efi: add PE/COFF debug table to EFI header Ard Biesheuvel
2018-11-05 19:09 ` [PATCH 0/6] ARM: compressed: clean up section layout and enable EFI debugging Russell King - ARM Linux
2018-11-05 19:10   ` Ard Biesheuvel
2018-11-05 19:14     ` Russell King - ARM Linux
2018-11-05 19:21       ` Ard Biesheuvel

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