This includes implementation of PLT0 entry.
For testing, libfn.so binary is added since
there's no way to link shared objects with lld yet.
llvm-svn: 234588
Make PLT entry atoms represent mapping symbols in the Release mode,
while in the Debug mode they are still function-like symbols
with regular names.
It's legal that mapping symbols denote unnamed parts of code,
and PLT entries are not required to have function-like names.
Differential Revision: http://reviews.llvm.org/D8819
llvm-svn: 234301
The function call that goes through PLT table may be performed
from both ARM and Thumb code.
This situation requires adding a veneer to original PLT code
(which is always ARM) to effect Thumb-to-ARM transition.
Differential Revision: http://reviews.llvm.org/D8701
llvm-svn: 233900
This diff includes implementation of linking calls to ifunc functions.
It provides ifunc entries in PLT and corresponding relocations (R_ARM_ALU_PC_G0_NC,
R_ARM_ALU_PC_G1_NC, R_ARM_LDR_PC_G2 for link-time and R_ARM_IRELATIVE for run-time).
Differential Revision: http://reviews.llvm.org/D7833
llvm-svn: 233277
Mapping symbols should have their own code models,
and in some places must be treated in a specific way.
Make $t denote Thumb code, and $a and $d denote ARM code.
Set size, binding and type of mapping symbols to what the specification says.
Differential Revision: http://reviews.llvm.org/D8601
llvm-svn: 233259
This patch defines implicit conversion between integers and PowerOf2
instances, so uses of the classes is now implicit and look like
regular integers. Now we are ready to remove the scaffolding.
llvm-svn: 233245
When calling ARM code from Thumb and vice versa,
a veneer that switches instruction set should be generated.
Added veneer generation for ARM_JUMP24 ARM_THM_JUMP24 instructions.
Differential Revision: http://reviews.llvm.org/D7502
llvm-svn: 228680
The code is able to statically link the simplest case of:
int main() { return 0; }
* Only works with ARM code - no Thumb code, no interwork (-marm -mno-thumb-interwork)
* musl libc built with no interwork and no Thumb code
Differential Revision: http://reviews.llvm.org/D6716
From: Denis Protivensky <dprotivensky@accesssoftek.com>
llvm-svn: 226643
