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389d1f1b23
* sysdeps/aarch64/crti.S: Add include of sysdep.h. (call_weak_fn): Use PTR_REG to get correct reg name in ILP32. * sysdeps/aarch64/dl-irel.h: Add include of sysdep.h. (elf_irela): Use AARCH64_R macro to get correct relocation in ILP32. * sysdeps/aarch64/dl-machine.h: Add include of sysdep.h. (elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START, elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela, elf_machine_lazy_rel): Add ifdef's for ILP32 support. * sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return, _dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic, _dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG to get correct reg name for ILP32. * sysdeps/aarch64/dl-trampoline.S (ip01): New Macro. (RELA_SIZE): New Macro. (_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG to support ILP32. * sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add cast for ILP32 mode. * sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode. * sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto. * sysdeps/aarch64/memset.S (__memset): Ditto. * sysdeps/aarch64/strchr.S (strchr): Ditto. * sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto. * sysdeps/aarch64/strcmp.S (strcmp): Ditto. * sysdeps/aarch64/strcpy.S (strcpy): Ditto. * sysdeps/aarch64/strlen.S (__strlen): Ditto. * sysdeps/aarch64/strncmp.S (strncmp): Ditto. * sysdeps/aarch64/strnlen.S (strnlen): Ditto. * sysdeps/aarch64/strrchr.S (strrchr): Ditto. * sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto. * sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto. * sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto. * sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32, change PTR_MANGLE call to use register numbers instead of names. * sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto. * sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for ILP32 mode, change PTR_MANGLE calls to use register numbers. * sysdeps/aarch64/start.S (_start): Ditto. * sysdeps/aarch64/nptl/bits/pthreadtypes.h (__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define. (__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T, __SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T, __SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T, __SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T, __SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T): Make defined values dependent on __ILP32__. * sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define. (sem_t): Change __align type. * sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE, PTR_SIZE): New Macros. (LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG. * sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE): Set when in ILP32 mode. (F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode. * sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID): Set elf flags for ILP32. (add_system_dir): Set ILP32 library directories. * sysdeps/unix/sysv/linux/aarch64/init-first.c (_libc_vdso_platform_setup): Set minimum kernel version for ILP32. * sysdeps/unix/sysv/linux/aarch64/ldconfig.h (SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names. * sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC): New Macros. * sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers.
301 lines
8.3 KiB
ArmAsm
301 lines
8.3 KiB
ArmAsm
/* Copyright (C) 2005-2016 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 License as
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published by the Free Software Foundation; either version 2.1 of the
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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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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <libc-symbols.h>
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#include "dl-link.h"
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#define ip0 x16
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#define ip0l PTR_REG (16)
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#define ip1 x17
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#define lr x30
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/* RELA relocatons are 3 pointers */
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#define RELA_SIZE (PTR_SIZE * 3)
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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 2
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_dl_runtime_resolve:
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/* AArch64 we get called with:
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ip0 &PLTGOT[2]
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ip1 temp(dl resolver entry point)
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[sp, #8] lr
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[sp, #0] &PLTGOT[n]
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*/
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cfi_rel_offset (lr, 8)
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/* Save arguments. */
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stp x8, x9, [sp, #-(80+8*16)]!
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cfi_adjust_cfa_offset (80+8*16)
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cfi_rel_offset (x8, 0)
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cfi_rel_offset (x9, 8)
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stp x6, x7, [sp, #16]
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cfi_rel_offset (x6, 16)
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cfi_rel_offset (x7, 24)
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stp x4, x5, [sp, #32]
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cfi_rel_offset (x4, 32)
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cfi_rel_offset (x5, 40)
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stp x2, x3, [sp, #48]
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cfi_rel_offset (x2, 48)
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cfi_rel_offset (x3, 56)
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stp x0, x1, [sp, #64]
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cfi_rel_offset (x0, 64)
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cfi_rel_offset (x1, 72)
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stp q0, q1, [sp, #(80+0*16)]
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cfi_rel_offset (q0, 80+0*16)
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cfi_rel_offset (q1, 80+1*16)
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stp q2, q3, [sp, #(80+2*16)]
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cfi_rel_offset (q0, 80+2*16)
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cfi_rel_offset (q1, 80+3*16)
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stp q4, q5, [sp, #(80+4*16)]
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cfi_rel_offset (q0, 80+4*16)
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cfi_rel_offset (q1, 80+5*16)
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stp q6, q7, [sp, #(80+6*16)]
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cfi_rel_offset (q0, 80+6*16)
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cfi_rel_offset (q1, 80+7*16)
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/* Get pointer to linker struct. */
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ldr PTR_REG (0), [ip0, #-PTR_SIZE]
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/* Prepare to call _dl_fixup(). */
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ldr x1, [sp, 80+8*16] /* Recover &PLTGOT[n] */
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sub x1, x1, ip0
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add x1, x1, x1, lsl #1
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lsl x1, x1, #3
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sub x1, x1, #(RELA_SIZE<<3)
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lsr x1, x1, #3
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/* Call fixup routine. */
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bl _dl_fixup
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/* Save the return. */
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mov ip0, x0
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/* Get arguments and return address back. */
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ldp q0, q1, [sp, #(80+0*16)]
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ldp q2, q3, [sp, #(80+2*16)]
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ldp q4, q5, [sp, #(80+4*16)]
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ldp q6, q7, [sp, #(80+6*16)]
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ldp x0, x1, [sp, #64]
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ldp x2, x3, [sp, #48]
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ldp x4, x5, [sp, #32]
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ldp x6, x7, [sp, #16]
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ldp x8, x9, [sp], #(80+8*16)
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cfi_adjust_cfa_offset (-(80+8*16))
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ldp ip1, lr, [sp], #16
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cfi_adjust_cfa_offset (-16)
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/* Jump to the newly found address. */
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br ip0
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cfi_endproc
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.size _dl_runtime_resolve, .-_dl_runtime_resolve
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#ifndef PROF
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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 2
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_dl_runtime_profile:
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/* AArch64 we get called with:
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ip0 &PLTGOT[2]
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ip1 temp(dl resolver entry point)
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[sp, #8] lr
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[sp, #0] &PLTGOT[n]
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Stack frame layout:
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[sp, #...] lr
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[sp, #...] &PLTGOT[n]
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[sp, #96] La_aarch64_regs
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[sp, #48] La_aarch64_retval
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[sp, #40] frame size return from pltenter
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[sp, #32] dl_profile_call saved x1
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[sp, #24] dl_profile_call saved x0
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[sp, #16] t1
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[sp, #0] x29, lr <- x29
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*/
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# define OFFSET_T1 16
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# define OFFSET_SAVED_CALL_X0 OFFSET_T1 + 8
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# define OFFSET_FS OFFSET_SAVED_CALL_X0 + 16
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# define OFFSET_RV OFFSET_FS + 8
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# define OFFSET_RG OFFSET_RV + DL_SIZEOF_RV
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# define SF_SIZE OFFSET_RG + DL_SIZEOF_RG
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# define OFFSET_PLTGOTN SF_SIZE
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# define OFFSET_LR OFFSET_PLTGOTN + 8
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/* Save arguments. */
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sub sp, sp, #SF_SIZE
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cfi_adjust_cfa_offset (SF_SIZE)
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stp x29, x30, [SP, #0]
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mov x29, sp
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cfi_def_cfa_register (x29)
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cfi_rel_offset (x29, 0)
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cfi_rel_offset (lr, 8)
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stp x0, x1, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*0]
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cfi_rel_offset (x0, OFFSET_RG + DL_OFFSET_RG_X0 + 16*0 + 0)
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cfi_rel_offset (x1, OFFSET_RG + DL_OFFSET_RG_X0 + 16*0 + 8)
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stp x2, x3, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*1]
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cfi_rel_offset (x2, OFFSET_RG + DL_OFFSET_RG_X0 + 16*1 + 0)
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cfi_rel_offset (x3, OFFSET_RG + DL_OFFSET_RG_X0 + 16*1 + 8)
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stp x4, x5, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*2]
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cfi_rel_offset (x4, OFFSET_RG + DL_OFFSET_RG_X0 + 16*2 + 0)
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cfi_rel_offset (x5, OFFSET_RG + DL_OFFSET_RG_X0 + 16*2 + 8)
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stp x6, x7, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*3]
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cfi_rel_offset (x6, OFFSET_RG + DL_OFFSET_RG_X0 + 16*3 + 0)
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cfi_rel_offset (x7, OFFSET_RG + DL_OFFSET_RG_X0 + 16*3 + 8)
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stp d0, d1, [X29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*0]
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cfi_rel_offset (d0, OFFSET_RG + DL_OFFSET_RG_D0 + 16*0)
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cfi_rel_offset (d1, OFFSET_RG + DL_OFFSET_RG_D0 + 16*0 + 8)
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stp d2, d3, [X29, #OFFSET_RG+ DL_OFFSET_RG_D0 + 16*1]
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cfi_rel_offset (d2, OFFSET_RG + DL_OFFSET_RG_D0 + 16*1 + 0)
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cfi_rel_offset (d3, OFFSET_RG + DL_OFFSET_RG_D0 + 16*1 + 8)
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stp d4, d5, [X29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*2]
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cfi_rel_offset (d4, OFFSET_RG + DL_OFFSET_RG_D0 + 16*2 + 0)
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cfi_rel_offset (d5, OFFSET_RG + DL_OFFSET_RG_D0 + 16*2 + 8)
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stp d6, d7, [X29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*3]
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cfi_rel_offset (d6, OFFSET_RG + DL_OFFSET_RG_D0 + 16*3 + 0)
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cfi_rel_offset (d7, OFFSET_RG + DL_OFFSET_RG_D0 + 16*3 + 8)
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add x0, x29, #SF_SIZE + 16
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ldr x1, [x29, #OFFSET_LR]
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stp x0, x1, [x29, #OFFSET_RG + DL_OFFSET_RG_SP]
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/* Get pointer to linker struct. */
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ldr PTR_REG (0), [ip0, #-PTR_SIZE]
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/* Prepare to call _dl_profile_fixup(). */
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ldr x1, [x29, OFFSET_PLTGOTN] /* Recover &PLTGOT[n] */
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sub x1, x1, ip0
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add x1, x1, x1, lsl #1
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lsl x1, x1, #3
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sub x1, x1, #(RELA_SIZE<<3)
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lsr x1, x1, #3
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stp x0, x1, [x29, #OFFSET_SAVED_CALL_X0]
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/* Set up extra args for _dl_profile_fixup */
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ldr x2, [x29, #OFFSET_LR] /* load saved LR */
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add x3, x29, #OFFSET_RG /* address of La_aarch64_reg */
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add x4, x29, #OFFSET_FS /* address of framesize */
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bl _dl_profile_fixup
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ldr ip0l, [x29, #OFFSET_FS] /* framesize == 0 */
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cmp ip0l, #0
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bge 1f
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cfi_remember_state
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/* Save the return. */
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mov ip0, x0
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/* Get arguments and return address back. */
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ldp x0, x1, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*0]
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ldp x2, x3, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*1]
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ldp x4, x5, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*2]
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ldp x6, x7, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*3]
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ldp d0, d1, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*0]
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ldp d2, d3, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*1]
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ldp d4, d5, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*2]
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ldp d6, d7, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*3]
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cfi_def_cfa_register (sp)
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ldp x29, x30, [x29, #0]
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cfi_restore(x29)
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cfi_restore(x30)
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add sp, sp, SF_SIZE + 16
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cfi_adjust_cfa_offset (- SF_SIZE - 16)
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/* Jump to the newly found address. */
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br ip0
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cfi_restore_state
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1:
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/* The new frame size is in ip0. */
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sub PTR_REG (1), PTR_REG (29), ip0l
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and sp, x1, #0xfffffffffffffff0
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str x0, [x29, #OFFSET_T1]
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mov x0, sp
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add x1, x29, #SF_SIZE + 16
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mov x2, ip0
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bl memcpy
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ldr ip0, [x29, #OFFSET_T1]
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/* Call the function. */
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ldp x0, x1, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*0]
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ldp x2, x3, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*1]
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ldp x4, x5, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*2]
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ldp x6, x7, [x29, #OFFSET_RG + DL_OFFSET_RG_X0 + 16*3]
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ldp d0, d1, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*0]
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ldp d2, d3, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*1]
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ldp d4, d5, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*2]
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ldp d6, d7, [x29, #OFFSET_RG + DL_OFFSET_RG_D0 + 16*3]
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blr ip0
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stp x0, x1, [x29, #OFFSET_RV + DL_OFFSET_RV_X0]
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stp d0, d1, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*0]
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stp d2, d3, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*1]
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/* Setup call to pltexit */
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ldp x0, x1, [x29, #OFFSET_SAVED_CALL_X0]
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add x2, x29, #OFFSET_RG
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add x3, x29, #OFFSET_RV
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bl _dl_call_pltexit
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ldp x0, x1, [x29, #OFFSET_RV + DL_OFFSET_RV_X0]
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ldp d0, d1, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*0]
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ldp d2, d3, [x29, #OFFSET_RV + DL_OFFSET_RV_D0 + 16*1]
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/* LR from within La_aarch64_reg */
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ldr lr, [x29, #OFFSET_RG + DL_OFFSET_RG_LR]
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cfi_restore(lr)
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mov sp, x29
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cfi_def_cfa_register (sp)
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ldr x29, [x29, #0]
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cfi_restore(x29)
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add sp, sp, SF_SIZE + 16
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cfi_adjust_cfa_offset (- SF_SIZE - 16)
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br lr
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cfi_endproc
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.size _dl_runtime_profile, .-_dl_runtime_profile
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#endif
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.previous
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