shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 04:10:18 +09:00
Code Issues Packages Projects Releases Wiki Activity

xen/efi: don't use -fshort-wchar

Browse Source 
Specifying -fshort-wchar for just one object breaks LTO with the
following error message:

 ld.gold: fatal error: Failed to link module drivers/xen/efi.o:
 linking module flags 'wchar_size': IDs have conflicting values

Since efi.c doesn't actually use wchar_t, turn off the flag when
LTO is enabled.

Bug: 62093296
Bug: 67506682
Change-Id: I509c18677353add8e1ad04f99f6e42bdab7814e7
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
This commit is contained in:
Sami Tolvanen
2018-02-13 13:48:10 -08:00
parent f437c20fc6
commit aadfde875d
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/xen/Makefile
View File

@@ -7,8 +7,10 @@ obj-y += xenbus/
nostackp := $(call cc-option, -fno-stack-protector)
CFLAGS_features.o := $(nostackp)
ifndef CONFIG_LTO_CLANG
CFLAGS_efi.o += -fshort-wchar
LDFLAGS += $(call ld-option, --no-wchar-size-warning)
endif
dom0-$(CONFIG_ARM64) += arm-device.o
dom0-$(CONFIG_PCI) += pci.o