arm: make _end compiler-generated

This prevents references to _end from generating absolute
relocation records.

This change is binary invariant for ARM targets.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>

22 files changed, 117 insertions, 29 deletions

diff --git a/arch/arm/cpu/arm1136/u-boot-spl.lds b/arch/arm/cpu/arm1136/u-boot-spl.lds
index bccde73317..0299902f20 100644
--- a/arch/arm/cpu/arm1136/u-boot-spl.lds
+++ b/arch/arm/cpu/arm1136/u-boot-spl.lds
@@ -33,7 +33,11 @@ SECTIONS
 	.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
 	. = ALIGN(4);
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	}
 
 	.bss :
 	{
diff --git a/arch/arm/cpu/arm920t/ep93xx/u-boot.lds b/arch/arm/cpu/arm920t/ep93xx/u-boot.lds
index 4bed4fcdd7..96994043e4 100644
--- a/arch/arm/cpu/arm920t/ep93xx/u-boot.lds
+++ b/arch/arm/cpu/arm920t/ep93xx/u-boot.lds
@@ -50,5 +50,8 @@ SECTIONS
 	.bss : { *(.bss*) }
 	__bss_end = .;
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
 }
diff --git a/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds b/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
index 80fb9bdc8d..d0b482d615 100644
--- a/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
+++ b/arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
@@ -49,9 +49,14 @@ SECTIONS
 		__bss_end = .;
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }
diff --git a/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds b/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds
index 76b499d87f..b6d0f65b66 100644
--- a/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds
+++ b/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds
@@ -49,9 +49,14 @@ SECTIONS
 		__bss_end = .;
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }
diff --git a/arch/arm/cpu/armv7/am33xx/u-boot-spl.lds b/arch/arm/cpu/armv7/am33xx/u-boot-spl.lds
index 9302856a95..b1c28c9442 100644
--- a/arch/arm/cpu/armv7/am33xx/u-boot-spl.lds
+++ b/arch/arm/cpu/armv7/am33xx/u-boot-spl.lds
@@ -38,7 +38,11 @@ SECTIONS
 
 	. = ALIGN(4);
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	} >.sram
 
 	.bss :
 	{
diff --git a/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds b/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
index 02aa129733..745603d0fe 100644
--- a/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
+++ b/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
@@ -39,7 +39,11 @@ SECTIONS
 
 	. = ALIGN(4);
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	}
 
 	.bss :
 	{
diff --git a/arch/arm/cpu/armv7/socfpga/u-boot-spl.lds b/arch/arm/cpu/armv7/socfpga/u-boot-spl.lds
index a7c9c9d281..4282beb395 100644
--- a/arch/arm/cpu/armv7/socfpga/u-boot-spl.lds
+++ b/arch/arm/cpu/armv7/socfpga/u-boot-spl.lds
@@ -28,7 +28,11 @@ SECTIONS
 
 	. = ALIGN(4);
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	}
 
 	.bss : {
 		. = ALIGN(4);
diff --git a/arch/arm/cpu/armv7/zynq/u-boot.lds b/arch/arm/cpu/armv7/zynq/u-boot.lds
index a68b050f2b..f2a5965988 100644
--- a/arch/arm/cpu/armv7/zynq/u-boot.lds
+++ b/arch/arm/cpu/armv7/zynq/u-boot.lds
@@ -60,7 +60,12 @@ SECTIONS
 		*(.__rel_dyn_end)
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
 /*
  * Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c
diff --git a/arch/arm/cpu/at91-common/u-boot-spl.lds b/arch/arm/cpu/at91-common/u-boot-spl.lds
index 038335d3da..57ac1eb242 100644
--- a/arch/arm/cpu/at91-common/u-boot-spl.lds
+++ b/arch/arm/cpu/at91-common/u-boot-spl.lds
@@ -37,7 +37,11 @@ SECTIONS
 
 	. = ALIGN(4);
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	} >.sram
 
 	.bss :
 	{
diff --git a/arch/arm/cpu/u-boot-spl.lds b/arch/arm/cpu/u-boot-spl.lds
index 4880d0f78a..3e886680e8 100644
--- a/arch/arm/cpu/u-boot-spl.lds
+++ b/arch/arm/cpu/u-boot-spl.lds
@@ -42,7 +42,12 @@ SECTIONS
 		__rel_dyn_end = .;
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
 	.bss __rel_dyn_start (OVERLAY) : {
 		__bss_start = .;
@@ -51,7 +56,7 @@ SECTIONS
 		__bss_end = .;
 	}
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }
diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds
index 4da5d246e0..87c2de22f5 100644
--- a/arch/arm/cpu/u-boot.lds
+++ b/arch/arm/cpu/u-boot.lds
@@ -60,7 +60,12 @@ SECTIONS
 		*(.__rel_dyn_end)
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
 	/*
 	 * Deprecated: this MMU section is used by pxa at present but
@@ -91,7 +96,7 @@ SECTIONS
 		KEEP(*(.__bss_end));
 	}
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 321997c332..45febcfd98 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -32,7 +32,6 @@ endif
 ifndef CONFIG_SYS_GENERIC_BOARD
 obj-y	+= board.o
 endif
-obj-y	+= sections.o
 
 obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
@@ -43,6 +42,7 @@ else
 obj-$(CONFIG_SPL_FRAMEWORK) += spl.o
 endif
 
+obj-y	+= sections.o
 ifdef CONFIG_ARM64
 obj-y	+= interrupts_64.o
 else
diff --git a/arch/arm/lib/sections.c b/arch/arm/lib/sections.c
index e35687c09c..5b30bcb9a5 100644
--- a/arch/arm/lib/sections.c
+++ b/arch/arm/lib/sections.c
@@ -25,3 +25,4 @@ char __image_copy_start[0] __attribute__((section(".__image_copy_start")));
 char __image_copy_end[0] __attribute__((section(".__image_copy_end")));
 char __rel_dyn_start[0] __attribute__((section(".__rel_dyn_start")));
 char __rel_dyn_end[0] __attribute__((section(".__rel_dyn_end")));
+char _end[0] __attribute__((section(".__end")));
diff --git a/board/Barix/ipam390/u-boot-spl-ipam390.lds b/board/Barix/ipam390/u-boot-spl-ipam390.lds
index 5480d1f276..8604696be7 100644
--- a/board/Barix/ipam390/u-boot-spl-ipam390.lds
+++ b/board/Barix/ipam390/u-boot-spl-ipam390.lds
@@ -49,5 +49,9 @@ SECTIONS
 	} >.sram
 
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	} >.sram
 }
diff --git a/board/ait/cam_enc_4xx/u-boot-spl.lds b/board/ait/cam_enc_4xx/u-boot-spl.lds
index fdfbfc38a9..c0d09adf7c 100644
--- a/board/ait/cam_enc_4xx/u-boot-spl.lds
+++ b/board/ait/cam_enc_4xx/u-boot-spl.lds
@@ -48,5 +48,9 @@ SECTIONS
 	} >.sram
 
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	}
 }
diff --git a/board/compulab/cm_t335/u-boot.lds b/board/compulab/cm_t335/u-boot.lds
index d25c19a834..0984dfe6ea 100644
--- a/board/compulab/cm_t335/u-boot.lds
+++ b/board/compulab/cm_t335/u-boot.lds
@@ -61,7 +61,12 @@ SECTIONS
 		*(.__rel_dyn_end)
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
 	/*
 	 * Deprecated: this MMU section is used by pxa at present but
@@ -92,7 +97,7 @@ SECTIONS
 		KEEP(*(.__bss_end));
 	}
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.hash : { *(.hash) }
 	.got.plt : { *(.got.plt) }
 	.dynbss : { *(.dynbss) }
diff --git a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
index 5480d1f276..de21a132b0 100644
--- a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
+++ b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
@@ -49,5 +49,9 @@ SECTIONS
 	} >.sram
 
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	}
 }
diff --git a/board/davinci/da8xxevm/u-boot-spl-hawk.lds b/board/davinci/da8xxevm/u-boot-spl-hawk.lds
index d49c314490..299226b95f 100644
--- a/board/davinci/da8xxevm/u-boot-spl-hawk.lds
+++ b/board/davinci/da8xxevm/u-boot-spl-hawk.lds
@@ -61,5 +61,8 @@ SECTIONS
 		__bss_end = .;
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
 }
diff --git a/board/freescale/mx31ads/u-boot.lds b/board/freescale/mx31ads/u-boot.lds
index 1cca176c38..6da1d4b5f5 100644
--- a/board/freescale/mx31ads/u-boot.lds
+++ b/board/freescale/mx31ads/u-boot.lds
@@ -69,7 +69,12 @@ SECTIONS
 		*(.__rel_dyn_end)
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
 /*
  * Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c
@@ -90,7 +95,7 @@ SECTIONS
 		KEEP(*(.__bss_end));
 	}
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }
diff --git a/board/samsung/common/exynos-uboot-spl.lds b/board/samsung/common/exynos-uboot-spl.lds
index 8e3b73ecf7..b22f9e07bb 100644
--- a/board/samsung/common/exynos-uboot-spl.lds
+++ b/board/samsung/common/exynos-uboot-spl.lds
@@ -42,7 +42,11 @@ SECTIONS
 	. = ALIGN(4);
 
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	} >.sram
 
 	.bss :
 	{
diff --git a/board/ti/am335x/u-boot.lds b/board/ti/am335x/u-boot.lds
index 6a734b30ac..ceb20226ff 100644
--- a/board/ti/am335x/u-boot.lds
+++ b/board/ti/am335x/u-boot.lds
@@ -77,7 +77,12 @@ SECTIONS
 		*(.__rel_dyn_end)
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
 	/*
 	 * Deprecated: this MMU section is used by pxa at present but
@@ -108,7 +113,7 @@ SECTIONS
 		KEEP(*(.__bss_end));
 	}
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }
diff --git a/board/vpac270/u-boot-spl.lds b/board/vpac270/u-boot-spl.lds
index b6fdde4d1b..5dbf94e44e 100644
--- a/board/vpac270/u-boot-spl.lds
+++ b/board/vpac270/u-boot-spl.lds
@@ -54,7 +54,12 @@ SECTIONS
 
 	. = ALIGN(0x800);
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
+
+	_image_binary_end = .;
 
 	.bss __rel_dyn_start (OVERLAY) : {
 		__bss_start = .;
@@ -63,7 +68,7 @@ SECTIONS
 		__bss_end = .;
 	}
 
-	.dynsym _end : { *(.dynsym) }
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }