The patch titled
vDSO hash-style fix
has been added to the -mm tree. Its filename is
vdso-hash-style-fix-fix.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: vDSO hash-style fix
From: Roland McGrath <roland@xxxxxxxxxx>
Here is a new version of the patch that addresses the issues cited.
Signed-off-by: Roland McGrath <roland@xxxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Cc: Kyle McMartin <kyle@xxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
Documentation/kbuild/makefiles.txt | 14 ++++++++++++++
scripts/Kbuild.include | 5 +++--
2 files changed, 17 insertions(+), 2 deletions(-)
diff -puN Documentation/kbuild/makefiles.txt~vdso-hash-style-fix-fix Documentation/kbuild/makefiles.txt
--- a/Documentation/kbuild/makefiles.txt~vdso-hash-style-fix-fix
+++ a/Documentation/kbuild/makefiles.txt
@@ -412,6 +412,20 @@ more details, with real examples.
and then outputs either option1 or option2
C escapes are supported in the test instruction
+ ld-option
+ ld-option is used to check if $(CC) when used to link object files
+ supports the given option. An optional second option may be
+ specified if first option are not supported.
+
+ Example:
+ #arch/i386/kernel/Makefile
+ vsyscall-flags += $(call ld-option, -Wl$(comma)--hash-style=sysv)
+
+ In the above example vsyscall-flags will be assigned the option
+ -Wl$(comma)--hash-style=sysv if it is supported by $(CC).
+ The second argument is optional, and if supplied will be used
+ if first argument is not supported.
+
cc-option
cc-option is used to check if $(CC) support a given option, and not
supported to use an optional second option.
diff -puN scripts/Kbuild.include~vdso-hash-style-fix-fix scripts/Kbuild.include
--- a/scripts/Kbuild.include~vdso-hash-style-fix-fix
+++ a/scripts/Kbuild.include
@@ -97,8 +97,9 @@ cc-ifversion = $(shell if [ $(call cc-ve
# ld-option
# Usage: ldflags += $(call ld-option, -Wl$(comma)--hash-style=both)
ld-option = $(shell if $(CC) $(1) \
- -nostdlib -o /dev/null -xc /dev/null \
- > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi)
+ -nostdlib -o ldtest$$$$.out -xc /dev/null \
+ > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi; \
+ rm -f ldtest$$$$.out)
###
# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
_
Patches currently in -mm which might be from roland@xxxxxxxxxx are
vdso-hash-style-fix.patch
vdso-hash-style-fix-fix.patch
-
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