diff options
Diffstat (limited to 'lib/libc/i386/gen')
| -rw-r--r-- | lib/libc/i386/gen/_set_tp.c | 19 |
1 files changed, 1 insertions, 18 deletions
diff --git a/lib/libc/i386/gen/_set_tp.c b/lib/libc/i386/gen/_set_tp.c index 9b76fa2..110e7e4 100644 --- a/lib/libc/i386/gen/_set_tp.c +++ b/lib/libc/i386/gen/_set_tp.c @@ -28,28 +28,11 @@ #include <string.h> #include <stdint.h> -#include <machine/segments.h> #include <machine/sysarch.h> void _set_tp(void *tp) { - union descriptor ldt; - int error, sel; - error = i386_set_gsbase(tp); - if (error == 0) - return; - memset(&ldt, 0, sizeof(ldt)); - ldt.sd.sd_lolimit = 0xffff; /* 4G limit */ - ldt.sd.sd_lobase = ((uintptr_t)tp) & 0xffffff; - ldt.sd.sd_type = SDT_MEMRWA; - ldt.sd.sd_dpl = SEL_UPL; - ldt.sd.sd_p = 1; /* present */ - ldt.sd.sd_hilimit = 0xf; /* 4G limit */ - ldt.sd.sd_def32 = 1; /* 32 bit */ - ldt.sd.sd_gran = 1; /* limit in pages */ - ldt.sd.sd_hibase = (((uintptr_t)tp) >> 24) & 0xff; - sel = i386_set_ldt(LDT_AUTO_ALLOC, &ldt, 1); - __asm __volatile("movl %0,%%gs" : : "rm" ((sel << 3) | 7)); + i386_set_gsbase(tp); } |
