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9c2aa7e707
GCC's garbage collector works for Microblaze for quite a long time but none
has enabled it.
The same change has be done for example by commit fac4790491f6 ("arc:
Eliminate unused code and data with GCC's garbage collector").
Before:
text data bss dec hex filename
588760 33592 39192 661544 a1828 u-boot
After:
text data bss dec hex filename
504504 32164 38608 575276 8c72c u-boot
Which saves almost 15% of memory footprint.
Also group symbols/functions to proper section.
Reported-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
19 lines
441 B
Makefile
19 lines
441 B
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# (C) Copyright 2007-2008 Michal Simek
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# Michal SIMEK <monstr@monstr.eu>
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#
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# (C) Copyright 2004 Atmark Techno, Inc.
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# Yasushi SHOJI <yashi@atmark-techno.com>
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CONFIG_STANDALONE_LOAD_ADDR ?= 0x80F00000
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PLATFORM_CPPFLAGS += -ffixed-r31 -D__microblaze__
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PLATFORM_CPPFLAGS += -fdata-sections -ffunction-sections
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LDFLAGS_FINAL += --gc-sections
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ifeq ($(CONFIG_SPL_BUILD),)
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PLATFORM_CPPFLAGS += -fPIC
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endif
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