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in VALID_USER_DSEL3() only check the low 16 bits.

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this fixes 32bit gmake from occasionally reporting "Error 255" after
a command has successfully run.

lots of help from ad@ and joerg@.
This commit is contained in:
mrg 2007-09-26 02:33:46 +00:00
parent 089984cd2f
commit ceb63bd6ed
1 changed files with 5 additions and 2 deletions
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7
sys/arch/amd64/include/segments.h
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@ -1,4 +1,4 @@
/* $NetBSD: segments.h,v 1.7 2006/08/19 16:27:58 dsl Exp $ */
/* $NetBSD: segments.h,v 1.8 2007/09/26 02:33:46 mrg Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
@ -354,9 +354,12 @@ int valid_user_selector(struct lwp *, uint64_t, char *, int);
* ldt is active.
*/
#define VALID_USER_DSEL32(s) \
((s) == GSEL(GUDATA32_SEL, SEL_UPL) || (s) == LSEL(LUDATA32_SEL, SEL_UPL))
(((s) & 0xffff) == GSEL(GUDATA32_SEL, SEL_UPL) || \
((s) & 0xffff) == LSEL(LUDATA32_SEL, SEL_UPL))
#if 0 /* not used */
#define VALID_USER_CSEL32(s) \
((s) == GSEL(GUCODE32_SEL, SEL_UPL) || (s) == LSEL(LUCODE32_SEL, SEL_UPL))
#endif
#define VALID_USER_CSEL(s) \
((s) == GSEL(GUCODE_SEL, SEL_UPL) || (s) == LSEL(LUCODE_SEL, SEL_UPL))