syntax fix
Summary:
Make the asm of aeabi_memset be assembled for thumb1.
Also fix some instructions to conform with the syntax of ARM reference manual.
For example, muls requires the form of "Rd, Rn, Rd" and orrs requires
the form of "Rd, Rm". Clang-as is benign but it may fail other assembler
if not in the exact form.
Reviewers: rengolin, compnerd, kubamracek
Reviewed By: rengolin, compnerd
Subscribers: aemerson, llvm-commits, mgorny
Differential Revision: https://reviews.llvm.org/D28971
llvm-svn: 292727
Use unified syntax for builtins/arm/aeabi_mem*.S.
This makes these files consistent with the others.
This fixes a problem on the linker, which can fail with the message
"relocation truncated to fit: R_ARM_THM_JUMP11 against symbol"
Patch by Kor Nielsen.
llvm-svn: 275264
These routines do not require executable stacks. However, by default ELFish
linkers may assume an executable stack on GNUish environments (and some non-GNU
ones too!). The GNU extension to add a note to indicate a non-executable stack
is honoured by these environments to mark the stack as non-executable (the
compiler normally emits this directive on appropriate targets whenever
possible). This allows normal builds from getting executable stacks due to
linking to the compiler rt builtins.
llvm-svn: 273500
The .align statements in ARM assembly routines is actually meant to be a power
of 2 alignment (e.g. .align 2 == 4 byte alignment, not 2). Switch to using
.p2align. .p2align is guaranteed to be a power-of-two alignment always and much
more explicit.
The .align in the case of x86_64 is byte alignment, use .balign instead of
.align.
llvm-svn: 208578
Weiming Zhao