mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-24 11:41:07 +00:00
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.
93 lines
2.4 KiB
ArmAsm
93 lines
2.4 KiB
ArmAsm
/* Copyright (C) 1996-2016 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* clone() is even more special than fork() as it mucks with stacks
|
|
and invokes a function in the right context after its all over. */
|
|
|
|
#include <sysdep.h>
|
|
#define _ERRNO_H 1
|
|
#include <bits/errno.h>
|
|
|
|
#define CLONE_VM_BIT 8
|
|
#define CLONE_VM (1 << CLONE_VM_BIT)
|
|
|
|
#define CLONE_THREAD_BIT 16
|
|
#define CLONE_THREAD (1 << CLONE_THREAD_BIT)
|
|
|
|
/* int clone(int (*fn)(void *arg), x0
|
|
void *child_stack, x1
|
|
int flags, x2
|
|
void *arg, x3
|
|
pid_t *ptid, x4
|
|
struct user_desc *tls, x5
|
|
pid_t *ctid); x6
|
|
*/
|
|
.text
|
|
ENTRY(__clone)
|
|
DELOUSE (0)
|
|
DELOUSE (1)
|
|
DELOUSE (2)
|
|
DELOUSE (3)
|
|
DELOUSE (4)
|
|
DELOUSE (5)
|
|
DELOUSE (6)
|
|
/* Save args for the child. */
|
|
mov x10, x0
|
|
mov x11, x2
|
|
mov x12, x3
|
|
|
|
/* Sanity check args. */
|
|
mov x0, #-EINVAL
|
|
cbz x10, .Lsyscall_error
|
|
cbz x1, .Lsyscall_error
|
|
|
|
/* Do the system call. */
|
|
/* X0:flags, x1:newsp, x2:parenttidptr, x3:newtls, x4:childtid. */
|
|
mov x0, x2 /* flags */
|
|
/* New sp is already in x1. */
|
|
mov x2, x4 /* ptid */
|
|
mov x3, x5 /* tls */
|
|
mov x4, x6 /* ctid */
|
|
mov x8, #SYS_ify(clone)
|
|
svc 0x0
|
|
|
|
cmp x0, #0
|
|
beq thread_start
|
|
blt .Lsyscall_error
|
|
RET
|
|
PSEUDO_END (__clone)
|
|
|
|
.align 4
|
|
.type thread_start, %function
|
|
thread_start:
|
|
cfi_startproc
|
|
cfi_undefined (x30)
|
|
mov x29, 0
|
|
|
|
/* Pick the function arg and execute. */
|
|
mov x0, x12
|
|
blr x10
|
|
|
|
/* We are done, pass the return value through x0. */
|
|
b HIDDEN_JUMPTARGET(_exit)
|
|
cfi_endproc
|
|
.size thread_start, .-thread_start
|
|
|
|
libc_hidden_def (__clone)
|
|
weak_alias (__clone, clone)
|