The current build fails with GCC6 on Debian sid i386 (unstable):
/tmp/ccqjaueF.s: Assembler messages:
/tmp/ccqjaueF.s:3713: Error: missing or invalid displacement expression
`vmovd_to_reg_len@GOT'
This is due to the combination of GCC6, and Debian's decision to
enable some hardening flags by default (to try to make runtime
addresses less predictable):
https://wiki.debian.org/Hardening/PIEByDefaultTransition
This is of no benefit for the x86 instruction emulator test, which is
a rebuild of the emulator code for testing purposes only. So pass
options to disable this.
These options will be no-ops if they are the same as the compiler
default.
On amd64, the -fno-pic breaks the build in a different way. So do
this only on i386.
Signed-off-by: Ian Jackson
CC: Jan Beulich
CC: Andrew Cooper
squash! tools/tests/x86_emulator: Pass -no-pie -fno-pic to gcc
Signed-off-by: Ian Jackson
---
tools/tests/x86_emulator/Makefile | 4
1 file changed, 4 insertions(+)
diff --git a/tools/tests/x86_emulator/Makefile
b/tools/tests/x86_emulator/Makefile
index 13ace9a..d349c0f 100644
--- a/tools/tests/x86_emulator/Makefile
+++ b/tools/tests/x86_emulator/Makefile
@@ -45,6 +45,10 @@ x86_emulate/x86_emulate.c x86_emulate/x86_emulate.h:
HOSTCFLAGS += $(CFLAGS_xeninclude)
+ifeq ($(XEN_TARGET_ARCH),x86_32)
+HOSTCFLAGS += -no-pie -fno-pic
+endif
+
x86_emulate.o: x86_emulate.c x86_emulate/x86_emulate.c
x86_emulate/x86_emulate.h
$(HOSTCC) $(HOSTCFLAGS) -c -g -o $@ $<
--
2.10.1
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