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Hardening compilation support for 64bit Linux

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Without this patch the compilation failed with:

/usr/bin/ld: main.o: relocation R_X86_64_32S against
`vtable for Genode::Dataspace' can not be used when making a shared object;
recompile with -fPIC
main.o: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[6]: *** [init] Error 1

For this patch the use of the hardening tool chain must be indicated
using the "hardening_tool_chain" SPECS entry within the file
<build>/etc/specs.conf

Fixes #79
This commit is contained in:
Torsten Hilbrich
2012-06-19 11:05:16 +02:00
committed by Norman Feske
parent df6a2f1365
commit ae41acec27
3 changed files with 15 additions and 0 deletions
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7
base-linux/lib/import/import-lx_hybrid.mk
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@ -77,10 +77,17 @@ endif
#
# Use the host's startup codes, linker script, and dynamic linker
#
ifneq ($(filter hardening_tool_chain, $(SPECS)),)
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=Scrt1.o)
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crti.o)
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crtbeginS.o)
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crtendS.o)
else
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crt1.o)
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crti.o)
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crtbegin.o)
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crtend.o)
endif
EXT_OBJECTS += $(shell cc $(CC_MARCH) -print-file-name=crtn.o)
EXT_OBJECTS += -lgcc -lgcc_s -lsupc++ -lc
EXT_OBJECTS += -lpthread