genode/repos/base/mk/spec-x86_64.mk
Christian Helmuth 11c31c4432 Prevent silly text-segment alignment on all platforms
We set 'ld -z max-page-size' to 4KiB to prevent the linker from aligning
the text segment to any built-in default (e.g., 4MiB on x86_64 or 64KiB
on ARM). Otherwise, the padding bytes are wasted at the beginning of the
final binary.
2015-07-01 14:46:16 +02:00

26 lines
551 B
Makefile

#
# Specifics for 64-bit x86
#
SPECS += x86 64bit
#
# x86-specific Genode headers
#
REP_INC_DIR += include/x86
REP_INC_DIR += include/x86_64
REP_INC_DIR += include/platform/x86
CC_MARCH ?= -m64
#
# Avoid wasting almost 4 MiB by telling the linker that the max page size is
# 4K. Otherwise, the linker would align the text segment to a 4M boundary,
# effectively adding 4M of zeros to each binary.
#
# See http://sourceware.org/ml/binutils/2009-04/msg00099.html
#
LD_MARCH ?= -melf_x86_64
include $(call select_from_repositories,mk/spec-64bit.mk)