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author | eadler <eadler@FreeBSD.org> | 2014-02-04 03:36:42 +0000 |
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committer | eadler <eadler@FreeBSD.org> | 2014-02-04 03:36:42 +0000 |
commit | ec294fd7f5fc5de11ed889d6c2d701f918d1ecfb (patch) | |
tree | 7e76e370b9406b0383b17bd343084addb4ad6a25 /sys/arm/include | |
parent | d374d7f398b846dc59d8a5ec3c7bfb318cf880af (diff) | |
download | FreeBSD-src-ec294fd7f5fc5de11ed889d6c2d701f918d1ecfb.zip FreeBSD-src-ec294fd7f5fc5de11ed889d6c2d701f918d1ecfb.tar.gz |
MFC r258779,r258780,r258787,r258822:
Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this
shifts into the sign bit. Instead use (1U << 31) which gets the
expected result.
Similar to the (1 << 31) case it is not defined to do (2 << 30).
This fix is not ideal as it assumes a 32 bit int, but does fix the issue
for most cases.
A similar change was made in OpenBSD.
Diffstat (limited to 'sys/arm/include')
-rw-r--r-- | sys/arm/include/armreg.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/arm/include/armreg.h b/sys/arm/include/armreg.h index 1ee3dd1..d47f743 100644 --- a/sys/arm/include/armreg.h +++ b/sys/arm/include/armreg.h @@ -363,7 +363,7 @@ #define CPU_CT_ARMV7 0x4 /* ARM v7 Cache type definitions */ -#define CPUV7_CT_CTYPE_WT (1 << 31) +#define CPUV7_CT_CTYPE_WT (1U << 31) #define CPUV7_CT_CTYPE_WB (1 << 30) #define CPUV7_CT_CTYPE_RA (1 << 29) #define CPUV7_CT_CTYPE_WA (1 << 28) |