generic-library/bionic
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

AArch64: Add initial support for AArch64

Browse Source 
This is the first patch out of a series of patches that add support for
AArch64, the new 64bit execution state of the ARMv8 Architecture. The
patches add support for LP64 programming model.

The patch adds:
* "arch-aarch64" to the architecture directories.
* "arch-aarch64/include" - headers used by libc
* "arch-aarch64/bionic":
    - crtbegin, crtend support;
    - aarch64 specific syscall stubs;
    - setjmp, clone, vfork assembly files.

Change-Id: If72b859f81928d03ad05d4ccfcb54c2f5dbf99a5
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
This commit is contained in:
Serban Constantinescu
2013-09-26 11:37:10 +01:00
committed by Elliott Hughes
parent db7180233f
commit e210488e0d
28 changed files with 1761 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
libc/private/__get_tls.h
View File

@@ -29,11 +29,10 @@
#ifndef __BIONIC_PRIVATE_GET_TLS_H_
#define __BIONIC_PRIVATE_GET_TLS_H_
#if defined(__arm__)
# define __get_tls() \
({ void** __val; \
__asm__("mrc p15, 0, %0, c13, c0, 3" : "=r"(__val)); \
__val; })
#if defined(__aarch64__)
# define __get_tls() ({ void** __val; __asm__("mrs %0, tpidr_el0" : "=r"(__val)); __val; })
#elif defined(__arm__)
# define __get_tls() ({ void** __val; __asm__("mrc p15, 0, %0, c13, c0, 3" : "=r"(__val)); __val; })
#elif defined(__mips__)
# define __get_tls() \
/* On mips32r1, this goes via a kernel illegal instruction trap that's optimized for v1. */ \
@@ -44,15 +43,9 @@
".set pop\n" : "=r"(__val)); \
__val; })
#elif defined(__i386__)
# define __get_tls() \
({ void** __val; \
__asm__("movl %%gs:0, %0" : "=r"(__val)); \
__val; })
# define __get_tls() ({ void** __val; __asm__("movl %%gs:0, %0" : "=r"(__val)); __val; })
#elif defined(__x86_64__)
# define __get_tls() \
({ void** __val; \
__asm__("mov %%fs:0, %0" : "=r"(__val)); \
__val; })
# define __get_tls() ({ void** __val; __asm__("mov %%fs:0, %0" : "=r"(__val)); __val; })
#else
#error unsupported architecture
#endif