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uboot: Use "mdbtrick" target when building elf for ARC

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By default position independent executables (PIE) are generated
when building U-Boot elf target. MetaWare debugger doesn't support
PIE (position-independent executable).

In order to allow MDB load and run U-Boot elf, we need to do a
special trick, called "mdbtrick".

This special build target is used to fake generated U-Boot elf by:
    1. Reset PIE flag in ELF header
    2. Strip all debug information from elf

Signed-off-by: Zakharov Vlad <vzakhar@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Zakharov Vlad 2016-05-27 20:51:41 +03:00 committed by Thomas Petazzoni
parent f075afcbd6
commit 41a077d2b1
1 changed files with 4 additions and 0 deletions
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4
boot/uboot/uboot.mk
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@ -38,6 +38,10 @@ endif
ifeq ($(BR2_TARGET_UBOOT_FORMAT_ELF),y)
UBOOT_BIN = u-boot
# To make elf usable for debuging on ARC use special target
ifeq ($(BR2_arc),y)
UBOOT_MAKE_TARGET = mdbtrick
endif
else ifeq ($(BR2_TARGET_UBOOT_FORMAT_KWB),y)
UBOOT_BIN = u-boot.kwb
UBOOT_MAKE_TARGET = $(UBOOT_BIN)