590e85b575
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
44 lines
1.3 KiB
ArmAsm
44 lines
1.3 KiB
ArmAsm
//===-- saveFP.S - Implement saveFP ---------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "../assembly.h"
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//
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// Helper function used by compiler to save ppc floating point registers in
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// function prologs. This routines also saves r0 in the LR slot.
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// If the compiler wants to save f27..f31, it does a "bl saveFP+52"
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//
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// This function should never be exported by a shared library. Each linkage
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// unit carries its own copy of this function.
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//
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DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(saveFP)
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stfd f14,-144(r1)
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stfd f15,-136(r1)
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stfd f16,-128(r1)
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stfd f17,-120(r1)
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stfd f18,-112(r1)
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stfd f19,-104(r1)
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stfd f20,-96(r1)
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stfd f21,-88(r1)
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stfd f22,-80(r1)
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stfd f23,-72(r1)
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stfd f24,-64(r1)
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stfd f25,-56(r1)
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stfd f26,-48(r1)
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stfd f27,-40(r1)
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stfd f28,-32(r1)
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stfd f29,-24(r1)
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stfd f30,-16(r1)
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stfd f31,-8(r1)
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stw r0,8(r1)
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blr
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NO_EXEC_STACK_DIRECTIVE
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