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llvm-svn: 363538
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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
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Previously thumb bits were only checked for external relocations (thumb to arm
code and vice-versa). This patch adds detection for thumb callees in the same
section asthe (also thumb) caller.
The MachO/Thumb test case is updated to cover this, and redundant checks
(handled by the MachO/ARM test) are removed.
llvm-svn: 331838
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llvm-svn: 311293
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The %T lit expansion expands to a common directory shared between all the tests in the same directory, which is unexpected and unintuitive, and more importantly, it's been a source of subtle race conditions and flaky tests. In https://reviews.llvm.org/D35396, it was agreed that it would be best to simply ban %T and only keep %t, which is unique to each test. When a test needs a temporary directory, it can just create one using mkdir %t.
This patch removes %T in llvm.
Differential Revision: https://reviews.llvm.org/D36495
llvm-svn: 310953
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This patch adds support for thumb relocations to RuntimeDyldMachOARM, and adds
a target-specific flags field to JITSymbolFlags (so that on ARM we can record
whether each symbol is Thumb-mode code).
RuntimeDyldImpl::emitSection is modified to ensure that stubs memory is
correctly aligned based on the size returned by getStubAlignment().
llvm-svn: 310517
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Summary:
This is a 31bits relative relocation instead of a 32bits absolute relocation.
Reviewers: t.p.northover, peter.smith, rengolin
Subscribers: aemerson, llvm-commits, samparker
Differential Revision: https://reviews.llvm.org/D25069
llvm-svn: 284780
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Summary:
This adds the necessary logic to support relocations to thumb functions in the COFF dynamic linker.
The jumps to function addresses are mostly blx, which requires the ISA selection bit when jumping to a thumb function.
Note: I'm determining if the relocation requires the ISA bit when creating the relocation entries and not when resolving the relocation. I have to do that because I need the ObjectFile and the actual Symbol, which are available only when creating the entries. It would require a gross refactor if I do it otherwise, but I'm okay with doing it if you think it's better.
Reviewers: peter.smith, compnerd
Subscribers: rengolin, sas
Differential Revision: https://reviews.llvm.org/D25151
llvm-svn: 284410
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According to the arm arm specifications, 4 bytes are needed for a shift instead
of 8, this was causing the movt instruction to write to a different register
sometimes.
Patch by Walter Erquinigo!
llvm-svn: 280005
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This adds rudimentary support for COFF ARM to the dynamic loader for the
exeuction engine. This can be used by lldb to JIT code into a COFF ARM
environment. This lays the foundation for the loader, though a few of the
relocation types are yet unhandled.
llvm-svn: 273682
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Very few things in MC itself use the option. Most of the code that that
uses it could be move to CodeGen.
llvm-svn: 269871
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llvm-svn: 243126
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(See e.g. http://bb.pgr.jp/builders/cmake-llvm-x86_64-linux/builds/17653)
llvm-svn: 220249
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symbol table.
Patch by Anthony Pesch. Thanks Anthony!
llvm-svn: 220245
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symbols.
Previously we have only been testing these relocations with external symbols.
<rdar://problem/18308413>
llvm-svn: 217635
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Fixes <rdar://problem/18297804>.
llvm-svn: 217620
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and BR24 relocations.
<rdar://problem/18296496>
llvm-svn: 217605
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We now (1) correctly decode the branch immediate, (2) modify the immediate to
corretly treat it as PC-rel, and (3) properly populate the stub entry.
Previously we had been doing each of these wrong.
<rdar://problem/17750739>
llvm-svn: 214285
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RuntimeDyldChecker.
This allows us to remove one of the six remaining object files in the LLVM
source tree.
llvm-svn: 212780
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