e58bb5dc4e
Summary: The `b` instruction in Thumb1 has limited range, which may cause link-time errors if the jump target is far away. This patch guards the tailcalls for non-Thumb1 Reviewers: peter.smith, compnerd, rengolin, eli.friedman Reviewed By: rengolin Subscribers: joerg, dalias, javed.absar, llvm-commits Differential Revision: https://reviews.llvm.org/D39700 llvm-svn: 317814
30 lines
854 B
ArmAsm
30 lines
854 B
ArmAsm
//===-- aeabi_memmove.S - EABI memmove implementation --------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===---------------------------------------------------------------------===//
|
|
|
|
#include "../assembly.h"
|
|
|
|
// void __aeabi_memmove(void *dest, void *src, size_t n) { memmove(dest, src, n); }
|
|
|
|
.p2align 2
|
|
DEFINE_COMPILERRT_FUNCTION(__aeabi_memmove)
|
|
#ifdef USE_THUMB_1
|
|
push {r7, lr}
|
|
bl memmove
|
|
pop {r7, pc}
|
|
#else
|
|
b memmove
|
|
#endif
|
|
END_COMPILERRT_FUNCTION(__aeabi_memmove)
|
|
|
|
DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memmove4, __aeabi_memmove)
|
|
DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memmove8, __aeabi_memmove)
|
|
|
|
NO_EXEC_STACK_DIRECTIVE
|
|
|