PERFORCE change 78508 for review
Peter Wemm
peter at FreeBSD.org
Tue Jun 14 02:11:05 GMT 2005
http://perforce.freebsd.org/chv.cgi?CH=78508
Change 78508 by peter at peter_melody on 2005/06/14 02:10:43
clean up ldt goop
Affected files ...
.. //depot/projects/hammer/libexec/rtld-elf/i386/reloc.c#9 edit
Differences ...
==== //depot/projects/hammer/libexec/rtld-elf/i386/reloc.c#9 (text+ko) ====
@@ -327,8 +327,6 @@
allocate_initial_tls(Obj_Entry *objs)
{
void* tls;
- union descriptor ldt;
- int error, sel;
/*
* Fix the size of the static TLS block by using the maximum
@@ -337,21 +335,7 @@
*/
tls_static_space = tls_last_offset + RTLD_STATIC_TLS_EXTRA;
tls = allocate_tls(objs, NULL, 2*sizeof(Elf_Addr), sizeof(Elf_Addr));
- error = i386_set_gsbase(tls);
- if (error < 0) {
- memset(&ldt, 0, sizeof(ldt));
- ldt.sd.sd_lolimit = 0xffff; /* 4G limit */
- ldt.sd.sd_lobase = ((Elf_Addr)tls) & 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 = (((Elf_Addr)tls) >> 24) & 0xff;
- sel = i386_set_ldt(LDT_AUTO_ALLOC, &ldt, 1);
- __asm __volatile("movl %0,%%gs" : : "rm" ((sel << 3) | 7));
- }
+ i386_set_gsbase(tls);
}
/* GNU ABI */
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