| reloc.c (145593) | reloc.c (147673) |
|---|---|
| 1/*- 2 * Copyright 1996, 1997, 1998, 1999 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 8 unchanged lines hidden (view full) --- 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * | 1/*- 2 * Copyright 1996, 1997, 1998, 1999 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 8 unchanged lines hidden (view full) --- 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * |
| 25 * $FreeBSD: head/libexec/rtld-elf/i386/reloc.c 145593 2005-04-27 13:17:23Z davidxu $ | 25 * $FreeBSD: head/libexec/rtld-elf/i386/reloc.c 147673 2005-06-29 23:15:36Z peter $ |
| 26 */ 27 28/* 29 * Dynamic linker for ELF. 30 * 31 * John Polstra <jdp@polstra.com>. 32 */ 33 --- 288 unchanged lines hidden (view full) --- 322 obj->jmpslots_done = true; 323 return 0; 324} 325 326void 327allocate_initial_tls(Obj_Entry *objs) 328{ 329 void* tls; | 26 */ 27 28/* 29 * Dynamic linker for ELF. 30 * 31 * John Polstra <jdp@polstra.com>. 32 */ 33 --- 288 unchanged lines hidden (view full) --- 322 obj->jmpslots_done = true; 323 return 0; 324} 325 326void 327allocate_initial_tls(Obj_Entry *objs) 328{ 329 void* tls; |
| 330 union descriptor ldt; 331 int error, sel; | |
| 332 333 /* 334 * Fix the size of the static TLS block by using the maximum 335 * offset allocated so far and adding a bit for dynamic modules to 336 * use. 337 */ 338 tls_static_space = tls_last_offset + RTLD_STATIC_TLS_EXTRA; 339 tls = allocate_tls(objs, NULL, 2*sizeof(Elf_Addr), sizeof(Elf_Addr)); | 330 331 /* 332 * Fix the size of the static TLS block by using the maximum 333 * offset allocated so far and adding a bit for dynamic modules to 334 * use. 335 */ 336 tls_static_space = tls_last_offset + RTLD_STATIC_TLS_EXTRA; 337 tls = allocate_tls(objs, NULL, 2*sizeof(Elf_Addr), sizeof(Elf_Addr)); |
| 340 error = i386_set_gsbase(tls); 341 if (error < 0) { 342 memset(&ldt, 0, sizeof(ldt)); 343 ldt.sd.sd_lolimit = 0xffff; /* 4G limit */ 344 ldt.sd.sd_lobase = ((Elf_Addr)tls) & 0xffffff; 345 ldt.sd.sd_type = SDT_MEMRWA; 346 ldt.sd.sd_dpl = SEL_UPL; 347 ldt.sd.sd_p = 1; /* present */ 348 ldt.sd.sd_hilimit = 0xf; /* 4G limit */ 349 ldt.sd.sd_def32 = 1; /* 32 bit */ 350 ldt.sd.sd_gran = 1; /* limit in pages */ 351 ldt.sd.sd_hibase = (((Elf_Addr)tls) >> 24) & 0xff; 352 sel = i386_set_ldt(LDT_AUTO_ALLOC, &ldt, 1); 353 __asm __volatile("movl %0,%%gs" : : "rm" ((sel << 3) | 7)); 354 } | 338 i386_set_gsbase(tls); |
| 355} 356 357/* GNU ABI */ 358__attribute__((__regparm__(1))) 359void *___tls_get_addr(tls_index *ti) 360{ 361 Elf_Addr** segbase; 362 Elf_Addr* dtv; --- 18 unchanged lines hidden --- | 339} 340 341/* GNU ABI */ 342__attribute__((__regparm__(1))) 343void *___tls_get_addr(tls_index *ti) 344{ 345 Elf_Addr** segbase; 346 Elf_Addr* dtv; --- 18 unchanged lines hidden --- |