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https://sourceware.org/git/glibc.git
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433 lines
8.8 KiB
ArmAsm
433 lines
8.8 KiB
ArmAsm
/* PLT trampolines. SH version.
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Copyright (C) 2005-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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.text
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.globl _dl_runtime_resolve
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.type _dl_runtime_resolve, @function
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cfi_startproc
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.align 5
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_dl_runtime_resolve:
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mov.l r2,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r3,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r4,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r5,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r6,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r7,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r12,@-r15
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cfi_adjust_cfa_offset (4)
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sts.l macl,@-r15
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cfi_adjust_cfa_offset (4)
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sts.l mach,@-r15
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cfi_adjust_cfa_offset (4)
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movt r3 ! Save T flag.
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mov.l r3,@-r15
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cfi_adjust_cfa_offset (4)
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#ifdef HAVE_FPU
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sts.l fpscr,@-r15
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cfi_adjust_cfa_offset (4)
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mov #8,r3
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swap.w r3,r3
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lds r3,fpscr
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fmov.s fr11,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr10,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr9,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr8,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr7,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr6,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr5,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr4,@-r15
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cfi_adjust_cfa_offset (4)
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#endif
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sts.l pr,@-r15
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cfi_adjust_cfa_offset (4)
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tst r0,r0
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bt 1f
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mov r0,r2
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1:
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mov r0,r4 ! PLT type
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mov r2,r5 ! link map address
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#ifdef SHARED
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mov.l 2f,r2
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mova 2f,r0
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add r0,r2 ! Get GOT address in r2
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mov.l 3f,r0
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add r2,r0
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#else
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mov.l 3f,r0
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#endif
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jsr @r0 ! Call resolver.
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mov r1,r6 ! reloc offset
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lds.l @r15+,pr ! Get register content back.
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cfi_adjust_cfa_offset (-4)
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#ifdef HAVE_FPU
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fmov.s @r15+,fr4
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr5
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr6
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr7
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr8
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr9
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr10
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr11
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cfi_adjust_cfa_offset (-4)
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lds.l @r15+,fpscr
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cfi_adjust_cfa_offset (-4)
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#endif
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mov.l @r15+,r3
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cfi_adjust_cfa_offset (-4)
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shal r3 ! Lode T flag.
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lds.l @r15+,mach
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cfi_adjust_cfa_offset (-4)
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lds.l @r15+,macl
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r12
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r7
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r6
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r5
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r4
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r3
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cfi_adjust_cfa_offset (-4)
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jmp @r0 ! Jump to function address.
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mov.l @r15+,r2
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cfi_adjust_cfa_offset (-4)
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.align 2
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#ifdef SHARED
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2: .long _GLOBAL_OFFSET_TABLE_
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3: .long _dl_fixup@GOTOFF
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#else
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3: .long _dl_fixup
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#endif
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cfi_endproc
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.size _dl_runtime_resolve, .-_dl_runtime_resolve
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#ifdef SHARED
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.globl _dl_runtime_profile
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.type _dl_runtime_profile,@function
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cfi_startproc
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.align 5
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_dl_runtime_profile:
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mov.l r12,@-r15
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cfi_adjust_cfa_offset (4)
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#ifdef HAVE_FPU
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sts.l fpscr,@-r15
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cfi_adjust_cfa_offset (4)
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mov #8,r12
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swap.w r12,r12
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lds r12,fpscr
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fmov.s fr11,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr10,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr9,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr8,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr7,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr6,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr5,@-r15
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cfi_adjust_cfa_offset (4)
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fmov.s fr4,@-r15
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cfi_adjust_cfa_offset (4)
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#else
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add #-36,r15
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cfi_adjust_cfa_offset (36)
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#endif
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mov.l r7,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r6,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r5,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r4,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r3,@-r15
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cfi_adjust_cfa_offset (4)
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mov.l r2,@-r15
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cfi_adjust_cfa_offset (4)
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sts.l macl,@-r15
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cfi_adjust_cfa_offset (4)
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sts.l mach,@-r15
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cfi_adjust_cfa_offset (4)
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movt r3 ! Save T flag.
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mov.l r3,@-r15
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cfi_adjust_cfa_offset (4)
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sts.l pr,@-r15
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cfi_adjust_cfa_offset (4)
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tst r0,r0
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bt 1f
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mov r0,r2
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1:
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mov r0,r4 ! PLT type
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mov r2,r5 ! link map address
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sts pr,r7 ! return address
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add #-24,r15
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cfi_adjust_cfa_offset (24)
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mov #40,r0
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add r15,r0
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mov.l r0,@r15 ! Address of the register structure
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mov #-1,r0
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mov.l r0,@(8,r15)
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mov #8,r0
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add r15,r0
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mov.l r0,@(4,r15)
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mov.l r5,@(12,r15)
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mov.l r1,@(16,r15)
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#ifdef SHARED
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mov.l 2f,r12
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mova 2f,r0
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add r0,r12 ! Get GOT address in r12
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mov.l 3f,r0
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add r12,r0
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#else
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mov.l 3f,r0
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#endif
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jsr @r0 ! Call resolver.
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mov r1,r6 ! reloc offset
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mov.l @(8,r15),r1
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cmp/pz r1
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bt 4f
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add #24,r15
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cfi_adjust_cfa_offset (-24)
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lds.l @r15+,pr ! Get register content back.
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r3
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cfi_adjust_cfa_offset (-4)
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shal r3 ! Lode T flag.
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lds.l @r15+,mach
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cfi_adjust_cfa_offset (-4)
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lds.l @r15+,macl
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r2
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r3
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r4
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r5
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r6
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r7
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cfi_adjust_cfa_offset (-4)
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#ifdef HAVE_FPU
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fmov.s @r15+,fr4
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr5
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr6
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr7
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr8
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr9
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr10
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr11
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cfi_adjust_cfa_offset (-4)
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lds.l @r15+,fpscr
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cfi_adjust_cfa_offset (-4)
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#else
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add #36,r15
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cfi_adjust_cfa_offset (-36)
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#endif
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jmp @r0 ! Jump to function address.
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mov.l @r15+,r12
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cfi_adjust_cfa_offset (-4)
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.align 2
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#ifdef SHARED
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2: .long _GLOBAL_OFFSET_TABLE_
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3: .long _dl_profile_fixup@GOTOFF
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#else
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3: .long _dl_profile_fixup
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#endif
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cfi_adjust_cfa_offset (104)
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4:
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mov #104,r3
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add r15,r3 ! Original stack
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mov.l r8,@(20,r15)
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cfi_rel_offset (r8, 20)
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mov r15,r8
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sub r1,r15
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shlr2 r15
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shll2 r15
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mov r15,r4
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shlr2 r1
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tst r1,r1
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5:
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bt/s 6f
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dt r1
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mov.l @r3+,r2
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mov.l r2,@r4
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bra 5b
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add #4,r4
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6:
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mov.l @r8,r12
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mov.l @r12+,r2
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mov.l @r12+,r3
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mov.l @r12+,r4
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mov.l @r12+,r5
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mov.l @r12+,r6
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mov.l @r12+,r7
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#ifdef HAVE_FPU
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fmov.s @r12+,fr4
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fmov.s @r12+,fr5
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fmov.s @r12+,fr6
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fmov.s @r12+,fr7
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fmov.s @r12+,fr8
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fmov.s @r12+,fr9
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fmov.s @r12+,fr10
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fmov.s @r12+,fr11
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lds.l @r12+,fpscr
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#else
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add #36,r2
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#endif
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jsr @r0 ! Call function.
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nop
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mov r8,r15
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mov.l @(12,r15),r4 ! link map address
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mov.l @(16,r15),r5 ! reloc offset
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mov.l @r15,r6 ! input registers
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#ifdef HAVE_FPU
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mov #16,r8
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add r15,r8
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fmov.s fr1,@-r8
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fmov.s fr0,@-r8
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#else
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mov #8,r8
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add r15,r8
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#endif
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mov.l r1,@-r8
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mov.l r0,@-r8
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mov.l @(20,r15),r8
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cfi_restore (r8)
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#ifdef SHARED
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mov.l 7f,r12
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mova 7f,r0
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add r0,r12 ! Get GOT address in r12
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mov.l 8f,r0
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add r12,r0
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#else
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mov.l 8f,r0
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#endif
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jsr @r0
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mov r15,r7 ! output registers
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mov.l @r15+,r0
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r1
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cfi_adjust_cfa_offset (-4)
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#ifdef HAVE_FPU
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fmov.s @r15+,fr0
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr1
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cfi_adjust_cfa_offset (-4)
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add #8,r15
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cfi_adjust_cfa_offset (-8)
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#else
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add #16,r15
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cfi_adjust_cfa_offset (-16)
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#endif
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lds.l @r15+,pr ! Get register content back.
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r3
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cfi_adjust_cfa_offset (-4)
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shal r3 ! Lode T flag.
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lds.l @r15+,mach
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cfi_adjust_cfa_offset (-4)
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lds.l @r15+,macl
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r2
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r3
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r4
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r5
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r6
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cfi_adjust_cfa_offset (-4)
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mov.l @r15+,r7
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cfi_adjust_cfa_offset (-4)
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#ifdef HAVE_FPU
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fmov.s @r15+,fr4
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr5
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr6
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr7
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr8
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr9
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr10
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cfi_adjust_cfa_offset (-4)
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fmov.s @r15+,fr11
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cfi_adjust_cfa_offset (-4)
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lds.l @r15+,fpscr
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cfi_adjust_cfa_offset (-4)
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#else
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add #36,r15
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cfi_adjust_cfa_offset (-36)
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#endif
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rts ! Jump to function address.
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mov.l @r15+,r12
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cfi_adjust_cfa_offset (-4)
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cfi_endproc
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.align 2
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#ifdef SHARED
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7: .long _GLOBAL_OFFSET_TABLE_
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8: .long _dl_audit_pltexit@GOTOFF
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#else
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8: .long _dl_audit_pltexit
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#endif
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.size _dl_runtime_profile, .-_dl_runtime_profile
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#endif /* SHARED */
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