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Let linker assume stacks are non-executable

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In our binaries, the .note.GNU-stack section is missing, which is okay
as we do not interpret these sections anyway and map stack pages
non-executable per default.

Issue #4827
This commit is contained in:
Christian Helmuth 2023-05-23 15:44:25 +02:00
parent 823349fffb
commit 6b2338257d
1 changed files with 2 additions and 1 deletions
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3
repos/base/mk/global.mk
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@ -211,8 +211,9 @@ CC_CXX_OPT += $(lastword $(CC_CXX_OPT_STD) $(CC_CXX_OPT_STD_$(subst .,_,$*)))
#
LD_OPT_GC_SECTIONS ?= -gc-sections
LD_OPT_ALIGN_SANE = -z max-page-size=0x1000
LD_OPT_NX_STACK = -z noexecstack
LD_OPT_PREFIX := -Wl,
LD_OPT += $(LD_MARCH) $(LD_OPT_GC_SECTIONS) $(LD_OPT_ALIGN_SANE)
LD_OPT += $(LD_MARCH) $(LD_OPT_GC_SECTIONS) $(LD_OPT_ALIGN_SANE) $(LD_OPT_NX_STACK)
CXX_LINK_OPT += $(addprefix $(LD_OPT_PREFIX),$(LD_OPT))
CXX_LINK_OPT += $(LD_OPT_NOSTDLIB)