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f4f06ddca7
This patch reduces the number of functions in the interface between RuntimeDyld and RuntimeDyldChecker by combining "GetXAddress" and "GetXContent" functions into "GetXInfo" functions that return a struct describing both the address and content. The GetStubOffset function is also replaced with a pair of utilities, GetStubInfo and GetGOTInfo, that fit the new scheme. For RuntimeDyld both of these functions will return the same result, but for the new JITLink linker (https://reviews.llvm.org/D58704) these will provide the addresses of PLT stubs and GOT entries respectively. For JITLink's use, a 'got_addr' utility has been added to the rtdyld-check language, and the syntax of 'got_addr' and 'stub_addr' has been changed: both functions now take two arguments, a 'stub container name' and a target symbol name. For llvm-rtdyld/RuntimeDyld the stub container name is the object file name and section name, separated by a slash. E.g.: rtdyld-check: *{8}(stub_addr(foo.o/__text, y)) = y For the upcoming llvm-jitlink utility, which creates stubs on a per-file basis rather than a per-section basis, the container name is just the file name. E.g.: jitlink-check: *{8}(got_addr(foo.o, y)) = y llvm-svn: 358295
62 lines
2.1 KiB
ArmAsm
62 lines
2.1 KiB
ArmAsm
# RUN: rm -rf %t && mkdir -p %t
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# RUN: llvm-mc -triple=thumbv7s-apple-ios7.0.0 -filetype=obj -o %t/MachO_Thumb.o %s
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# RUN: llvm-rtdyld -triple=thumbv7s-apple-ios7.0.0 -verify -check=%s %t/MachO_Thumb.o
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.section __TEXT,__text,regular,pure_instructions
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.syntax unified
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.globl thumb_caller_thumb_callee
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.p2align 1
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.code 16
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.thumb_func thumb_caller_thumb_callee
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thumb_caller_thumb_callee:
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nop
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.globl arm_caller_thumb_callee
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.p2align 1
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.code 16
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.thumb_func arm_caller_thumb_callee
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arm_caller_thumb_callee:
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nop
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.globl thumb_caller_arm_callee
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.p2align 1
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.code 32
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thumb_caller_arm_callee:
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nop
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.globl thumb_caller
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.p2align 1
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.code 16
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.thumb_func thumb_caller
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thumb_caller:
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nop
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# Check that stubs for thumb callers use thumb code (not arm), and that thumb
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# callees have the low bit set on their addresses.
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#
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o/__text, thumb_caller_thumb_callee)) = 0xf000f8df
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o/__text, thumb_caller_thumb_callee) + 4) = (thumb_caller_thumb_callee | 0x1)
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bl thumb_caller_thumb_callee
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# Check that arm callees do not have the low bit set on their addresses.
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#
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o/__text, thumb_caller_arm_callee)) = 0xf000f8df
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o/__text, thumb_caller_arm_callee) + 4) = thumb_caller_arm_callee
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bl thumb_caller_arm_callee
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.globl arm_caller
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.p2align 2
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.code 32
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arm_caller:
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nop
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# Check that stubs for arm callers use arm code (not thumb), and that thumb
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# callees have the low bit set on their addresses.
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o/__text, arm_caller_thumb_callee)) = 0xe51ff004
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o/__text, arm_caller_thumb_callee) + 4) = (arm_caller_thumb_callee | 0x1)
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bl arm_caller_thumb_callee
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nop
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.subsections_via_symbols
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