From 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 Mon Sep 17 00:00:00 2001 From: Zack Weinberg Date: Thu, 8 Jun 2017 15:39:03 -0400 Subject: Prepare for radical source tree reorganization. All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control). --- REORG.TODO/sysdeps/alpha/dl-trampoline.S | 540 +++++++++++++++++++++++++++++++ 1 file changed, 540 insertions(+) create mode 100644 REORG.TODO/sysdeps/alpha/dl-trampoline.S (limited to 'REORG.TODO/sysdeps/alpha/dl-trampoline.S') diff --git a/REORG.TODO/sysdeps/alpha/dl-trampoline.S b/REORG.TODO/sysdeps/alpha/dl-trampoline.S new file mode 100644 index 0000000000..f527705d27 --- /dev/null +++ b/REORG.TODO/sysdeps/alpha/dl-trampoline.S @@ -0,0 +1,540 @@ +/* PLT trampolines. Alpha version. + Copyright (C) 2005-2017 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, see + . */ + +#include + + .set noat + +.macro savei regno, offset + stq $\regno, \offset($30) + cfi_rel_offset(\regno, \offset) +.endm + +.macro savef regno, offset + stt $f\regno, \offset($30) + cfi_rel_offset(\regno+32, \offset) +.endm + + .align 4 + .globl _dl_runtime_resolve_new + .ent _dl_runtime_resolve_new + +#undef FRAMESIZE +#define FRAMESIZE 14*8 + +_dl_runtime_resolve_new: + .frame $30, FRAMESIZE, $26, 0 + .mask 0x4000000, 0 + + ldah $29, 0($27) !gpdisp!1 + lda $30, -FRAMESIZE($30) + stq $26, 0*8($30) + stq $16, 2*8($30) + + stq $17, 3*8($30) + lda $29, 0($29) !gpdisp!1 + stq $18, 4*8($30) + mov $28, $16 /* link_map from .got.plt */ + + stq $19, 5*8($30) + mov $25, $17 /* offset of reloc entry */ + stq $20, 6*8($30) + mov $26, $18 /* return address */ + + stq $21, 7*8($30) + stt $f16, 8*8($30) + stt $f17, 9*8($30) + stt $f18, 10*8($30) + + stt $f19, 11*8($30) + stt $f20, 12*8($30) + stt $f21, 13*8($30) + .prologue 2 + + bsr $26, _dl_fixup !samegp + mov $0, $27 + + ldq $26, 0*8($30) + ldq $16, 2*8($30) + ldq $17, 3*8($30) + ldq $18, 4*8($30) + ldq $19, 5*8($30) + ldq $20, 6*8($30) + ldq $21, 7*8($30) + ldt $f16, 8*8($30) + ldt $f17, 9*8($30) + ldt $f18, 10*8($30) + ldt $f19, 11*8($30) + ldt $f20, 12*8($30) + ldt $f21, 13*8($30) + lda $30, FRAMESIZE($30) + jmp $31, ($27), 0 + .end _dl_runtime_resolve_new + + .globl _dl_runtime_profile_new + .type _dl_runtime_profile_new, @function + +#undef FRAMESIZE +#define FRAMESIZE 20*8 + + /* We save the registers in a different order than desired by + .mask/.fmask, so we have to use explicit cfi directives. */ + cfi_startproc + +_dl_runtime_profile_new: + ldah $29, 0($27) !gpdisp!2 + lda $30, -FRAMESIZE($30) + savei 26, 0*8 + stq $16, 2*8($30) + + stq $17, 3*8($30) + lda $29, 0($29) !gpdisp!2 + stq $18, 4*8($30) + lda $1, FRAMESIZE($30) /* incoming sp value */ + + stq $1, 1*8($30) + stq $19, 5*8($30) + stq $20, 6*8($30) + mov $28, $16 /* link_map from .got.plt */ + + stq $21, 7*8($30) + mov $25, $17 /* offset of reloc entry */ + stt $f16, 8*8($30) + mov $26, $18 /* return address */ + + stt $f17, 9*8($30) + mov $30, $19 /* La_alpha_regs address */ + stt $f18, 10*8($30) + lda $20, 14*8($30) /* framesize address */ + + stt $f19, 11*8($30) + stt $f20, 12*8($30) + stt $f21, 13*8($30) + stq $28, 16*8($30) + stq $25, 17*8($30) + + bsr $26, _dl_profile_fixup !samegp + mov $0, $27 + + /* Discover if we're wrapping this call. */ + ldq $18, 14*8($30) + bge $18, 1f + + ldq $26, 0*8($30) + ldq $16, 2*8($30) + ldq $17, 3*8($30) + ldq $18, 4*8($30) + ldq $19, 5*8($30) + ldq $20, 6*8($30) + ldq $21, 7*8($30) + ldt $f16, 8*8($30) + ldt $f17, 9*8($30) + ldt $f18, 10*8($30) + ldt $f19, 11*8($30) + ldt $f20, 12*8($30) + ldt $f21, 13*8($30) + lda $30, FRAMESIZE($30) + jmp $31, ($27), 0 + +1: + /* Create a frame pointer and allocate a new argument frame. */ + savei 15, 15*8 + mov $30, $15 + cfi_def_cfa_register (15) + addq $18, 15, $18 + bic $18, 15, $18 + subq $30, $18, $30 + + /* Save the call destination around memcpy. */ + stq $0, 14*8($30) + + /* Copy the stack arguments into place. */ + lda $16, 0($30) + lda $17, FRAMESIZE($15) + jsr $26, memcpy + ldgp $29, 0($26) + + /* Reload the argument registers. */ + ldq $27, 14*8($30) + ldq $16, 2*8($15) + ldq $17, 3*8($15) + ldq $18, 4*8($15) + ldq $19, 5*8($15) + ldq $20, 6*8($15) + ldq $21, 7*8($15) + ldt $f16, 8*8($15) + ldt $f17, 9*8($15) + ldt $f18, 10*8($15) + ldt $f19, 11*8($15) + ldt $f20, 12*8($15) + ldt $f21, 13*8($15) + + jsr $26, ($27), 0 + ldgp $29, 0($26) + + /* Set up for call to _dl_call_pltexit. */ + ldq $16, 16*8($15) + ldq $17, 17*8($15) + stq $0, 16*8($15) + lda $18, 0($15) + stq $1, 17*8($15) + lda $19, 16*8($15) + stt $f0, 18*8($15) + stt $f1, 19*8($15) + bsr $26, _dl_call_pltexit !samegp + + mov $15, $30 + cfi_def_cfa_register (30) + ldq $26, 0($30) + ldq $15, 15*8($30) + lda $30, FRAMESIZE($30) + ret + + cfi_endproc + .size _dl_runtime_profile_new, .-_dl_runtime_profile_new + + .align 4 + .globl _dl_runtime_resolve_old + .ent _dl_runtime_resolve_old + +#undef FRAMESIZE +#define FRAMESIZE 44*8 + +_dl_runtime_resolve_old: + lda $30, -FRAMESIZE($30) + .frame $30, FRAMESIZE, $26 + /* Preserve all registers that C normally doesn't. */ + stq $26, 0*8($30) + stq $0, 1*8($30) + stq $1, 2*8($30) + stq $2, 3*8($30) + stq $3, 4*8($30) + stq $4, 5*8($30) + stq $5, 6*8($30) + stq $6, 7*8($30) + stq $7, 8*8($30) + stq $8, 9*8($30) + stq $16, 10*8($30) + stq $17, 11*8($30) + stq $18, 12*8($30) + stq $19, 13*8($30) + stq $20, 14*8($30) + stq $21, 15*8($30) + stq $22, 16*8($30) + stq $23, 17*8($30) + stq $24, 18*8($30) + stq $25, 19*8($30) + stq $29, 20*8($30) + stt $f0, 21*8($30) + stt $f1, 22*8($30) + stt $f10, 23*8($30) + stt $f11, 24*8($30) + stt $f12, 25*8($30) + stt $f13, 26*8($30) + stt $f14, 27*8($30) + stt $f15, 28*8($30) + stt $f16, 29*8($30) + stt $f17, 30*8($30) + stt $f18, 31*8($30) + stt $f19, 32*8($30) + stt $f20, 33*8($30) + stt $f21, 34*8($30) + stt $f22, 35*8($30) + stt $f23, 36*8($30) + stt $f24, 37*8($30) + stt $f25, 38*8($30) + stt $f26, 39*8($30) + stt $f27, 40*8($30) + stt $f28, 41*8($30) + stt $f29, 42*8($30) + stt $f30, 43*8($30) + .mask 0x27ff01ff, -FRAMESIZE + .fmask 0xfffffc03, -FRAMESIZE+21*8 + /* Set up our GP. */ + br $29, .+4 + ldgp $29, 0($29) + .prologue 0 + /* Set up the arguments for _dl_fixup: + $16 = link_map out of plt0 + $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24 + $18 = return address + */ + subq $28, $27, $17 + ldq $16, 8($27) + subq $17, 20, $17 + mov $26, $18 + addq $17, $17, $17 + bsr $26, _dl_fixup !samegp + + /* Move the destination address into position. */ + mov $0, $27 + /* Restore program registers. */ + ldq $26, 0*8($30) + ldq $0, 1*8($30) + ldq $1, 2*8($30) + ldq $2, 3*8($30) + ldq $3, 4*8($30) + ldq $4, 5*8($30) + ldq $5, 6*8($30) + ldq $6, 7*8($30) + ldq $7, 8*8($30) + ldq $8, 9*8($30) + ldq $16, 10*8($30) + ldq $17, 11*8($30) + ldq $18, 12*8($30) + ldq $19, 13*8($30) + ldq $20, 14*8($30) + ldq $21, 15*8($30) + ldq $22, 16*8($30) + ldq $23, 17*8($30) + ldq $24, 18*8($30) + ldq $25, 19*8($30) + ldq $29, 20*8($30) + ldt $f0, 21*8($30) + ldt $f1, 22*8($30) + ldt $f10, 23*8($30) + ldt $f11, 24*8($30) + ldt $f12, 25*8($30) + ldt $f13, 26*8($30) + ldt $f14, 27*8($30) + ldt $f15, 28*8($30) + ldt $f16, 29*8($30) + ldt $f17, 30*8($30) + ldt $f18, 31*8($30) + ldt $f19, 32*8($30) + ldt $f20, 33*8($30) + ldt $f21, 34*8($30) + ldt $f22, 35*8($30) + ldt $f23, 36*8($30) + ldt $f24, 37*8($30) + ldt $f25, 38*8($30) + ldt $f26, 39*8($30) + ldt $f27, 40*8($30) + ldt $f28, 41*8($30) + ldt $f29, 42*8($30) + ldt $f30, 43*8($30) + /* Flush the Icache after having modified the .plt code. */ + imb + /* Clean up and turn control to the destination */ + lda $30, FRAMESIZE($30) + jmp $31, ($27) + + .end _dl_runtime_resolve_old + + .globl _dl_runtime_profile_old + .usepv _dl_runtime_profile_old, no + .type _dl_runtime_profile_old, @function + + /* We save the registers in a different order than desired by + .mask/.fmask, so we have to use explicit cfi directives. */ + cfi_startproc + +#undef FRAMESIZE +#define FRAMESIZE 50*8 + + .align 4 +_dl_runtime_profile_old: + lda $30, -FRAMESIZE($30) + cfi_adjust_cfa_offset (FRAMESIZE) + + /* Preserve all argument registers. This also constructs the + La_alpha_regs structure. */ + savei 26, 0*8 + savei 16, 2*8 + savei 17, 3*8 + savei 18, 4*8 + savei 19, 5*8 + savei 20, 6*8 + savei 21, 7*8 + lda $16, FRAMESIZE($30) + savef 16, 8*8 + savef 17, 9*8 + savef 18, 10*8 + savef 19, 11*8 + savef 20, 12*8 + savef 21, 13*8 + stq $16, 1*8($30) + + /* Preserve all registers that C normally doesn't. */ + savei 0, 14*8 + savei 1, 15*8 + savei 2, 16*8 + savei 3, 17*8 + savei 4, 18*8 + savei 5, 19*8 + savei 6, 20*8 + savei 7, 21*8 + savei 8, 22*8 + savei 22, 23*8 + savei 23, 24*8 + savei 24, 25*8 + savei 25, 26*8 + savei 29, 27*8 + savef 0, 28*8 + savef 1, 29*8 + savef 10, 30*8 + savef 11, 31*8 + savef 12, 32*8 + savef 13, 33*8 + savef 14, 34*8 + savef 15, 35*8 + savef 22, 36*8 + savef 23, 37*8 + savef 24, 38*8 + savef 25, 39*8 + savef 26, 40*8 + savef 27, 41*8 + savef 28, 42*8 + savef 29, 43*8 + savef 30, 44*8 + + /* Set up our GP. */ + br $29, .+4 + ldgp $29, 0($29) + + /* Set up the arguments for _dl_profile_fixup: + $16 = link_map out of plt0 + $17 = offset of reloc entry = ($28 - $27 - 20) /12 * 24 + $18 = return address + $19 = La_alpha_regs address + $20 = framesize address + */ + subq $28, $27, $17 + ldq $16, 8($27) + subq $17, 20, $17 + mov $26, $18 + addq $17, $17, $17 + lda $19, 0($30) + lda $20, 45*8($30) + stq $16, 48*8($30) + stq $17, 49*8($30) + + bsr $26, _dl_profile_fixup !samegp + + /* Discover if we're wrapping this call. */ + ldq $18, 45*8($30) + bge $18, 1f + + /* Move the destination address into position. */ + mov $0, $27 + /* Restore program registers. */ + ldq $26, 0*8($30) + ldq $16, 2*8($30) + ldq $17, 3*8($30) + ldq $18, 4*8($30) + ldq $19, 5*8($30) + ldq $20, 6*8($30) + ldq $21, 7*8($30) + ldt $f16, 8*8($30) + ldt $f17, 9*8($30) + ldt $f18, 10*8($30) + ldt $f19, 11*8($30) + ldt $f20, 12*8($30) + ldt $f21, 13*8($30) + ldq $0, 14*8($30) + ldq $1, 15*8($30) + ldq $2, 16*8($30) + ldq $3, 17*8($30) + ldq $4, 18*8($30) + ldq $5, 19*8($30) + ldq $6, 20*8($30) + ldq $7, 21*8($30) + ldq $8, 22*8($30) + ldq $22, 23*8($30) + ldq $23, 24*8($30) + ldq $24, 25*8($30) + ldq $25, 26*8($30) + ldq $29, 27*8($30) + ldt $f0, 28*8($30) + ldt $f1, 29*8($30) + ldt $f10, 30*8($30) + ldt $f11, 31*8($30) + ldt $f12, 32*8($30) + ldt $f13, 33*8($30) + ldt $f14, 34*8($30) + ldt $f15, 35*8($30) + ldt $f22, 36*8($30) + ldt $f23, 37*8($30) + ldt $f24, 38*8($30) + ldt $f25, 39*8($30) + ldt $f26, 40*8($30) + ldt $f27, 41*8($30) + ldt $f28, 42*8($30) + ldt $f29, 43*8($30) + ldt $f30, 44*8($30) + + /* Clean up and turn control to the destination. */ + lda $30, FRAMESIZE($30) + jmp $31, ($27) + +1: + /* Create a frame pointer and allocate a new argument frame. */ + savei 15, 45*8 + mov $30, $15 + cfi_def_cfa_register (15) + addq $18, 15, $18 + bic $18, 15, $18 + subq $30, $18, $30 + + /* Save the call destination around memcpy. */ + stq $0, 46*8($30) + + /* Copy the stack arguments into place. */ + lda $16, 0($30) + lda $17, FRAMESIZE($15) + jsr $26, memcpy + ldgp $29, 0($26) + + /* Reload the argument registers. */ + ldq $27, 46*8($30) + ldq $16, 2*8($15) + ldq $17, 3*8($15) + ldq $18, 4*8($15) + ldq $19, 5*8($15) + ldq $20, 6*8($15) + ldq $21, 7*8($15) + ldt $f16, 8*8($15) + ldt $f17, 9*8($15) + ldt $f18, 10*8($15) + ldt $f19, 11*8($15) + ldt $f20, 12*8($15) + ldt $f21, 13*8($15) + + jsr $26, ($27), 0 + ldgp $29, 0($26) + + /* Set up for call to _dl_call_pltexit. */ + ldq $16, 48*8($15) + ldq $17, 49*8($15) + stq $0, 46*8($15) + lda $18, 0($15) + stq $1, 47*8($15) + lda $19, 46*8($15) + stt $f0, 48*8($15) + stt $f1, 49*8($15) + bsr $26, _dl_call_pltexit !samegp + + mov $15, $30 + cfi_def_cfa_register (30) + ldq $26, 0($30) + ldq $15, 45*8($30) + lda $30, FRAMESIZE($30) + ret + + cfi_endproc + .size _dl_runtime_profile_old, .-_dl_runtime_profile_old -- cgit 1.4.1