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[PATCH 2/4] x86/hvmloader: Don't build as PIC/PIE
- To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Wed, 24 Aug 2022 11:59:13 +0100
- Authentication-results: esa1.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none
- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
- Delivery-date: Wed, 24 Aug 2022 10:59:58 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
HVMLoader is not relocatable in memory, and 32bit PIC code has a large
overhead. Build it as non-relocatable.
Bloat-o-meter reports a net:
add/remove: 0/0 grow/shrink: 3/107 up/down: 14/-3370 (-3356)
No functional change.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
---
tools/firmware/hvmloader/Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/firmware/hvmloader/Makefile
b/tools/firmware/hvmloader/Makefile
index 4f31c881613c..eb757819274b 100644
--- a/tools/firmware/hvmloader/Makefile
+++ b/tools/firmware/hvmloader/Makefile
@@ -23,7 +23,8 @@ include $(XEN_ROOT)/tools/firmware/Rules.mk
# SMBIOS spec requires format mm/dd/yyyy
SMBIOS_REL_DATE ?= $(shell date +%m/%d/%Y)
-CFLAGS += $(CFLAGS_xeninclude)
+CFLAGS += $(CFLAGS_xeninclude) -fno-pic
+$(call cc-option-add,CFLAGS,-no-pie)
# We mustn't use tools-only public interfaces.
CFLAGS += -D__XEN_INTERFACE_VERSION__=__XEN_LATEST_INTERFACE_VERSION__
--
2.11.0
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