/* PLT trampolines. Sparc 64-bit version. Copyright (C) 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include .text .align 32 /* %g1: PLT offset loaded by PLT entry * %g4: callers PC, which is PLT0 + 24, therefore we * add (32 + 8) to get the address of PLT2 which * is where the magic cookie is stored */ .globl _dl_runtime_resolve_0 .type _dl_runtime_resolve_0, @function _dl_runtime_resolve_0: save %sp, -192, %sp sethi %hi(1047552), %l2 ldx [%g4 + 32 + 8], %o0 sub %g1, %g4, %l0 xor %l2, -1016, %l2 sethi %hi(5120), %l3 /* 160 * 32 */ add %l0, %l2, %l0 sethi %hi(32768), %l4 udivx %l0, %l3, %l3 sllx %l3, 2, %l1 add %l1, %l3, %l1 sllx %l1, 10, %l2 sub %l4, 4, %l4 sllx %l1, 5, %l1 sub %l0, %l2, %l0 udivx %l0, 24, %l0 add %l0, %l4, %l0 add %l1, %l0, %l1 add %l1, %l1, %l0 add %l0, %l1, %l0 call _dl_fixup sllx %l0, 3, %o1 jmp %o0 restore .size _dl_runtime_resolve_0, .-_dl_runtime_resolve_0 /* %g1: PLT offset loaded by PLT entry * %g4: callers PC, which is PLT1 + 24, therefore we * add 8 to get the address of PLT2 which * is where the magic cookie is stored */ .globl _dl_runtime_resolve_1 .type _dl_runtime_resolve_1, @function _dl_runtime_resolve_1: save %sp, -192, %sp srlx %g1, 12, %o1 ldx [%g4 + 8], %o0 add %o1, %o1, %o3 sub %o1, 96, %o1 call _dl_fixup add %o1, %o3, %o1 jmp %o0 restore .size _dl_runtime_resolve_1, .-_dl_runtime_resolve_1 /* For the profiling cases we pass in our stack frame * as the base of the La_sparc64_regs, so it looks * like: * %l0 %sp * ... * %l7 %sp + (7 * 8) * %i0 %sp + (8 * 8) * ... * %i7 %sp + (15 * 8) * %f0 %sp + (16 * 8) * %f16 %sp + (31 * 8) * framesize %sp + (32 * 8) */ .globl _dl_profile_save_regs .type _dl_profile_save_regs, @function _dl_profile_save_regs: stx %l0, [%sp + STACK_BIAS + ( 0 * 8)] stx %l1, [%sp + STACK_BIAS + ( 1 * 8)] stx %l2, [%sp + STACK_BIAS + ( 2 * 8)] stx %l3, [%sp + STACK_BIAS + ( 3 * 8)] stx %l4, [%sp + STACK_BIAS + ( 4 * 8)] stx %l5, [%sp + STACK_BIAS + ( 5 * 8)] stx %l6, [%sp + STACK_BIAS + ( 6 * 8)] stx %l7, [%sp + STACK_BIAS + ( 7 * 8)] stx %i0, [%sp + STACK_BIAS + ( 8 * 8)] stx %i1, [%sp + STACK_BIAS + ( 9 * 8)] stx %i2, [%sp + STACK_BIAS + (10 * 8)] stx %i3, [%sp + STACK_BIAS + (11 * 8)] stx %i4, [%sp + STACK_BIAS + (12 * 8)] stx %i5, [%sp + STACK_BIAS + (13 * 8)] stx %i6, [%sp + STACK_BIAS + (14 * 8)] stx %i7, [%sp + STACK_BIAS + (15 * 8)] std %f0, [%sp + STACK_BIAS + (16 * 8)] std %f2, [%sp + STACK_BIAS + (17 * 8)] std %f4, [%sp + STACK_BIAS + (18 * 8)] std %f6, [%sp + STACK_BIAS + (19 * 8)] std %f8, [%sp + STACK_BIAS + (20 * 8)] std %f10, [%sp + STACK_BIAS + (21 * 8)] std %f12, [%sp + STACK_BIAS + (22 * 8)] std %f14, [%sp + STACK_BIAS + (23 * 8)] std %f16, [%sp + STACK_BIAS + (24 * 8)] std %f18, [%sp + STACK_BIAS + (25 * 8)] std %f20, [%sp + STACK_BIAS + (26 * 8)] std %f22, [%sp + STACK_BIAS + (27 * 8)] std %f24, [%sp + STACK_BIAS + (28 * 8)] std %f26, [%sp + STACK_BIAS + (29 * 8)] std %f28, [%sp + STACK_BIAS + (30 * 8)] retl std %f30, [%sp + STACK_BIAS + (31 * 8)] .size _dl_profile_save_regs, .-_dl_profile_save_regs /* If we are going to call pltexit, then we must replicate * the caller's stack frame. * %o0: PLT resolved function address */ .globl _dl_profile_invoke .type _dl_profile_invoke, @function _dl_profile_invoke: sub %sp, %l0, %sp 1: srlx %l0, 3, %l7 mov %o0, %l1 mov %i0, %o0 mov %i1, %o1 mov %i2, %o2 mov %i3, %o3 mov %i4, %o4 mov %i5, %o5 add %fp, STACK_BIAS, %l2 add %sp, STACK_BIAS, %l3 1: ldx [%l2], %l4 add %l2, 0x8, %l2 subcc %l7, 1, %l7 stx %l4, [%l3] bne,pt %xcc, 1b add %l3, 0x8, %l3 jmpl %l1, %o7 nop stx %o0, [%sp + STACK_BIAS + (16 * 8)] stx %o1, [%sp + STACK_BIAS + (17 * 8)] stx %o2, [%sp + STACK_BIAS + (18 * 8)] stx %o3, [%sp + STACK_BIAS + (19 * 8)] std %f0, [%sp + STACK_BIAS + (20 * 8)] std %f2, [%sp + STACK_BIAS + (21 * 8)] std %f4, [%sp + STACK_BIAS + (22 * 8)] std %f8, [%sp + STACK_BIAS + (23 * 8)] mov %l5, %o0 mov %l6, %o1 add %sp, %l0, %o2 add %sp, STACK_BIAS + (16 * 8), %o3 call _dl_call_pltexit add %o2, STACK_BIAS, %o2 ldx [%sp + STACK_BIAS + (16 * 8)], %i0 ldx [%sp + STACK_BIAS + (17 * 8)], %i1 ldx [%sp + STACK_BIAS + (18 * 8)], %i2 ldx [%sp + STACK_BIAS + (19 * 8)], %i3 jmpl %i7 + 8, %g0 restore /* %g1: PLT offset loaded by PLT entry * %g4: callers PC, which is PLT0 + 24, therefore we * add (32 + 8) to get the address of PLT2 which * is where the magic cookie is stored */ .align 32 .globl _dl_runtime_profile_0 .type _dl_runtime_profile_0, @function _dl_runtime_profile_0: brz,a,pn %fp, 1f mov 192, %g5 sub %fp, %sp, %g5 1: save %sp, -336, %sp sethi %hi(1047552), %l2 ldx [%g4 + 32 + 8], %o0 sub %g1, %g4, %l0 xor %l2, -1016, %l2 sethi %hi(5120), %l3 /* 160 * 32 */ add %l0, %l2, %l0 sethi %hi(32768), %l4 udivx %l0, %l3, %l3 sllx %l3, 2, %l1 add %l1, %l3, %l1 sllx %l1, 10, %l2 sub %l4, 4, %l4 sllx %l1, 5, %l1 sub %l0, %l2, %l0 udivx %l0, 24, %l0 add %l0, %l4, %l0 add %l1, %l0, %l1 add %l1, %l1, %l0 add %l0, %l1, %l0 mov %i7, %o2 sllx %l0, 3, %o1 mov %g5, %l0 mov %o0, %l5 mov %o1, %l6 call _dl_profile_save_regs nop add %sp, STACK_BIAS, %o3 call _dl_profile_fixup add %sp, (STACK_BIAS + (32 * 8)), %o4 ldx [%sp + STACK_BIAS + (32 * 8)], %o1 brgez,pt %o1, 1f nop call _dl_profile_invoke nop 1: jmp %o0 restore .size _dl_runtime_profile_0, .-_dl_runtime_profile_0 /* %g1: PLT offset loaded by PLT entry * %g4: callers PC, which is PLT1 + 24, therefore we * add 8 to get the address of PLT2 which * is where the magic cookie is stored */ .globl _dl_runtime_profile_1 .type _dl_runtime_profile_1, @function _dl_runtime_profile_1: brz,a,pn %fp, 1f mov 192, %g5 sub %fp, %sp, %g5 1: save %sp, -336, %sp srlx %g1, 12, %o1 ldx [%g4 + 8], %o0 add %o1, %o1, %o3 sub %o1, 96, %o1 mov %i7, %o2 add %o1, %o3, %o1 mov %g5, %l0 mov %o0, %l5 mov %o1, %l6 call _dl_profile_save_regs nop add %sp, STACK_BIAS, %o3 call _dl_profile_fixup add %sp, (STACK_BIAS + (32 * 8)), %o4 ldx [%sp + STACK_BIAS + (32 * 8)], %o1 brgez,pt %o1, 1f nop call _dl_profile_invoke nop 1: jmp %o0 restore .size _dl_runtime_resolve_1, .-_dl_runtime_resolve_1