[Xen-changelog] [xen stable-4.9] rombios: prevent building with PIC/PIE

[patchbot@xxxxxxx]

commit 5587d9af0d872796c9313995a5fc9f1b552a2a1d
Author:     Olaf Hering <olaf@xxxxxxxxx>
AuthorDate: Mon Aug 28 11:35:29 2017 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Aug 28 11:35:29 2017 +0200

    rombios: prevent building with PIC/PIE
    
    If the default compiler silently defaults to to -fPIC/-fPIE building
    rombios fails:
    
     ld -melf_i386 -s -r 32bitbios.o tcgbios/tcgbiosext.o util.o pmm.o -o 
32bitbios_all.o
     There are undefined symbols in the BIOS:
              U _GLOBAL_OFFSET_TABLE_
     make[10]: *** [Makefile:26: 32bitbios_all.o] Error 11
    
    Prevent the failure by enforcing non-PIC/PIE mode.
    
    Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: 672949d6c61d9cba01c5b414eed9d522082f04d3
    master date: 2017-06-26 14:32:46 +0100
---
 tools/firmware/rombios/32bit/Makefile         | 2 ++
 tools/firmware/rombios/32bit/tcgbios/Makefile | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/tools/firmware/rombios/32bit/Makefile 
b/tools/firmware/rombios/32bit/Makefile
index b0583c9..28c1544 100644
--- a/tools/firmware/rombios/32bit/Makefile
+++ b/tools/firmware/rombios/32bit/Makefile
@@ -4,6 +4,8 @@ include $(XEN_ROOT)/tools/firmware/Rules.mk
 TARGET = 32bitbios_flat.h
 
 CFLAGS += $(CFLAGS_xeninclude) -I.. -I../../../libacpi
+$(call cc-option-add,CFLAGS,CC,-fno-pic)
+$(call cc-option-add,CFLAGS,CC,-fno-PIE)
 
 SUBDIRS = tcgbios
 
diff --git a/tools/firmware/rombios/32bit/tcgbios/Makefile 
b/tools/firmware/rombios/32bit/tcgbios/Makefile
index f87d130..5cff4ef 100644
--- a/tools/firmware/rombios/32bit/tcgbios/Makefile
+++ b/tools/firmware/rombios/32bit/tcgbios/Makefile
@@ -4,6 +4,8 @@ include $(XEN_ROOT)/tools/firmware/Rules.mk
 TARGET  = tcgbiosext.o
 
 CFLAGS += $(CFLAGS_xeninclude) -I.. -I../.. -I../../../../libacpi
+$(call cc-option-add,CFLAGS,CC,-fno-pic)
+$(call cc-option-add,CFLAGS,CC,-fno-PIE)
 
 .PHONY: all
 all: $(TARGET)
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.9

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