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3 Commits

Author SHA1 Message Date
Michael S. Tsirkin
8083013fc3 ld-version: Fix it on Fedora 
On Fedora 23, ld --version outputs:
GNU ld version 2.25-15.fc23

But ld-version.sh fails to parse this, so e.g.  mips build fails to
enable VDSO, printing a warning that binutils >= 2.24 is required.

To fix, teach ld-version to parse this format.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: linux-kernel@vger.kernel.org
Cc: Michal Marek <mmarek@suse.com>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12023/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-01-08 16:34:27 +01:00
James Hogan
d5ece1cb07 Fix ld-version.sh to handle large 3rd version part 
The ld-version.sh script doesn't handle versions with large (>= 10) 3rd
version components, because the 2nd component is only multiplied by 10
times that of the 3rd component.

For example the following version string:
GNU ld (Codescape GNU Tools 2015.06-05 for MIPS MTI Linux) 2.24.90

gives a bogus version number:
 20000000
+ 2400000
+  900000 = 23300000

Breakage, confusion and mole-whacking ensues.

Increase the multipliers of the first two version components by a factor
of 10 to give space for a 3rd components of up to 99, and update the
sole user of ld-ifversion (MIPS VDSO) accordingly.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11931/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-01-04 10:22:52 +01:00
Andi Kleen
ccbef1674a Kbuild, lto: add ld-version and ld-ifversion macros 
To check the linker version. Used by the LTO makefile.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391846481-31491-9-git-send-email-ak@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
 2014-02-13 20:25:00 -08:00