arc: make sure _start is in the beginning of .text section

This is important to have entry point in the beginning of .text section because it allows simple loading and execution of U-Boot. For example pre-bootloader loads U-Boot in memory starting from offset 0x81000000 and then just jumps to the same address. Otherwise pre-bootloader would need to find-out where entry-point is. In its turn if it deals with binary image of U-Boot there's no way for pre-bootloader to get required value. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

arc: make sure _start is in the beginning of .text section
This is important to have entry point in the beginning of .text section because it allows simple loading and execution of U-Boot. For example pre-bootloader loads U-Boot in memory starting from offset 0x81000000 and then just jumps to the same address. Otherwise pre-bootloader would need to find-out where entry-point is. In its turn if it deals with binary image of U-Boot there's no way for pre-bootloader to get required value. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Alexey Brodkin
1 parent 0241c3131d
Showing 2 changed files with 2 additions and 1 deletions Side-by-side Diff
arch/arc/cpu/u-boot.lds
arch/arc/lib/Makefile
@@ -13,6 +13,7 @@
 	.text :	{
 		*(.__text_start)
 		*(.__image_copy_start)
+		arch/arc/lib/start.o (.text*)
 		*(.text*)
 	}
  
@@ -4,6 +4,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
  
+head-y := start.o
 obj-y += cache.o
 obj-y += cpu.o
 obj-y += interrupts.o
@@ -18,7 +19,6 @@
 obj-y += memset.o
 obj-y += reset.o
 obj-y += timer.o
-obj-y += start.o
 obj-y += ints_low.o
 obj-y += init_helpers.o
...	...	@@ -13,6 +13,7 @@
13	13	.text : {
14	14	*(.__text_start)
15	15	*(.__image_copy_start)
	16	+ arch/arc/lib/start.o (.text*)
16	17	(.text)
17	18	}
18	19
...	...	@@ -4,6 +4,7 @@
4	4	# SPDX-License-Identifier: GPL-2.0+
5	5	#
6	6
	7	+head-y := start.o
7	8	obj-y += cache.o
8	9	obj-y += cpu.o
9	10	obj-y += interrupts.o
...	...	@@ -18,7 +19,6 @@
18	19	obj-y += memset.o
19	20	obj-y += reset.o
20	21	obj-y += timer.o
21		-obj-y += start.o
22	22	obj-y += ints_low.o
23	23	obj-y += init_helpers.o
24	24