linux/arch/parisc
John David Anglin cabd91c3bb parisc: avoid undefined shift in cnv_float.h
The attached change fixes a float conversion problem found running the
GCC testsuite with GCC configured with --with-arch=2.0.

The actual problem occurs for an exponent value of 63. This is the
maximum exponent value that can be passed. This causes a left shift by
32 in the else hunk of the macro. This causes undefined behavior and the
wrong value is returned for dresultB. The fix is the check "exponent <=
62". If the exponent is 63, dresultB is set to 0. The patch also
optimizes the operation a bit by copying "Sall(sgl_value) <<
SGL_EXP_LENGTH" to val, so that sgl_value is not modified.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-01-07 23:06:22 +01:00
..
configs kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
hpux vfs: define struct filename and have getname() return it 2012-10-12 20:14:55 -04:00
include ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
kernel ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
lib [PARISC] update parisc to use generic strncpy_from_user() 2012-05-31 11:14:37 +01:00
math-emu parisc: avoid undefined shift in cnv_float.h 2013-01-07 23:06:22 +01:00
mm parisc: Use generic init_task 2012-05-05 13:00:24 +02:00
oprofile oprofile: more whitespace fixes 2008-10-15 20:55:51 +02:00
defpalo.conf
install.sh kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
Kconfig Bury the conditionals from kernel_thread/kernel_execve series 2012-12-19 18:07:38 -05:00
Kconfig.debug parisc: add strict copy size checks (v2) 2010-03-06 22:54:09 +00:00
Makefile [PARISC] fix code to find libgcc 2012-06-05 14:10:23 +09:00
nm