[coreboot-gerrit] Patch merged into coreboot/master: 17c05f2 inteltool: pcie.c: Use `0xffULL` instead of `0xff` to avoid shift overflow
gerrit at coreboot.org
gerrit at coreboot.org
Mon Apr 15 19:03:20 CEST 2013
the following patch was just integrated into master:
commit 17c05f23e215ff741bfc3fa611d7d2087198c3c1
Author: Paul Menzel <paulepanter at users.sourceforge.net>
Date: Wed Apr 3 10:00:33 2013 +0200
inteltool: pcie.c: Use `0xffULL` instead of `0xff` to avoid shift overflow
When building inteltool with Clang, it warns about the following.
$ clang --version
Debian clang version 3.2-1~exp6 (tags/RELEASE_32/final) (based on LLVM 3.2)
Target: i386-pc-linux-gnu
Thread model: posix
$ CC=clang make
[…]
clang -O2 -g -Wall -W -c -o pcie.o pcie.c
pcie.c:297:40: warning: signed shift result (0xFF0000000) requires 37 bits to represent, but 'int' only has 32 bits [-Wshift-overflow]
pciexbar_phys = pciexbar_reg & (0xff << 28);
~~~~ ^ ~~
pcie.c:301:41: warning: signed shift result (0xFF8000000) requires 37 bits to represent, but 'int' only has 32 bits [-Wshift-overflow]
pciexbar_phys = pciexbar_reg & (0x1ff << 27);
~~~~~ ^ ~~
pcie.c:305:41: warning: signed shift result (0xFFC000000) requires 37 bits to represent, but 'int' only has 32 bits [-Wshift-overflow]
pciexbar_phys = pciexbar_reg & (0x3ff << 26);
~~~~~ ^ ~~
3 warnings generated.
[…]
Specifying the length by using the suffix `0xffULL` fixes these issues
as now enough bits are available.
These issues were introduced in commit 1162f25a [1].
commit 1162f25a49e8f39822123d664cda10fef466b351
Author: Stefan Reinauer <stepan at coresystems.de>
Date: Thu Dec 4 15:18:20 2008 +0000
Patch to util/inteltool:
* PMBASE dumping now knows the registers.
* Add support for i965, i975, ICH8M
* Add support for Darwin OS using DirectIO
[1] http://review.coreboot.org/gitweb?p=coreboot.git;a=commit;h=1162f25a49e8f39822123d664cda10fef466b351
Change-Id: I7b9a15b04ef3bcae64e06266667597d0f9f07b79
Signed-off-by: Paul Menzel <paulepanter at users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/3015
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.huber at secunet.com>
Reviewed-by: Ronald G. Minnich <rminnich at gmail.com>
Build-Tested: build bot (Jenkins) at Mon Apr 15 12:16:10 2013, giving +1
Reviewed-By: Ronald G. Minnich <rminnich at gmail.com> at Mon Apr 15 19:03:19 2013, giving +2
See http://review.coreboot.org/3015 for details.
-gerrit
More information about the coreboot-gerrit
mailing list