The current functionality is extremely basic and a bit rough around the
edges, but it will flesh out in future commits.
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This is in preparation for switching the clang driver over to using LLVM's
Option library. Richard Smith introduced most of these changes to the clang
driver in r167638.
Reviewers: espindola on IRC
Differential Revision: http://llvm-reviews.chandlerc.com/D970
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It was only used to implement ExecuteAndWait and ExecuteNoWait. Expose just
those two functions and make Execute and Wait implementations details.
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I've been comparing the object file output of LLVM's integrated
assembler against the external assembler on PowerPC, and one
area where differences still remain are in DWARF sections.
In particular, the GNU assembler generates .debug_frame and
.debug_line sections using a code alignment factor of 4, since
all PowerPC instructions have size 4 and must be aligned to a
multiple of 4. However, current MC code hard-codes a code
alignment factor of 1.
This patch changes this by adding a "minimum instruction alignment"
data element to MCAsmInfo and using this as code alignment factor.
This requires passing a MCContext into MCDwarfLineAddr::Encode
and MCDwarfLineAddr::EncodeAdvanceLoc. Note that one caller,
MCDwarfLineAddr::Write, didn't actually have that information
available. However, it turns out that this routine is in fact
never used in the whole code base, so the patch simply removes
it. If it turns out to be needed again at a later time, it
could be re-added with an updated interface.
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`typeinfo for llvm:🆑:GenericOptionValue').
Remove an "anchor" method for an abstract class. (This does not
increase the number of vtables.)
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Most clients have already been moved from Path V1 to V2. The ones using V1
now include PathV1.h explicitly.
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COFF header is always present both in executable and in object file. PE header
is present only in executable. So the natural way to handle PE/COFF file is
treating COFF is mandatory header and PE is optional. Current data structre
does not allow it, because PE header includes COFF header. Removing COFF
header will simplify the code to handle PE/COFF files.
Reviewers: Bigcheese
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D952
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This enables the compiler to see the enum and produce warnings about a switch
not being fully covered. Fix one of these warnings.
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Currently, only emitting the ELF header is supported (no sections or
segments).
The ELFYAML code organization is broadly similar to the COFFYAML code.
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building outside projects with a different compiler than that used to build
LLVM itself (eg switching between gcc and clang).
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