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9 Commits

Author SHA1 Message Date
Sean Fertile
3853b078f5 [Object][XCOFF] Remove extra includes from XCOFF related files. [NFC]
Differential Revision: https://reviews.llvm.org/D60885

llvm-svn: 366723
2019-07-22 18:47:55 +00:00
Sean Fertile
c0135f7359 Try to appease the Windows build bots.
Several of the conditonal operators commited in llvm-svn: 365524 fail to compile
on the windows buildbots. Converting to an if and early return to try to fix.

llvm-svn: 365535
2019-07-09 18:44:28 +00:00
Sean Fertile
aa1c5e5087 [Object][XCOFF] Add support for 64-bit file header and section header dumping.
Adds a readobj dumper for 32-bit and 64-bit section header tables, and extend
support for the file-header dumping to include 64-bit object files. Also
refactors the binary file parsing to be done in a helper function in an attempt
to cleanup error handeling.

Differential Revision: https://reviews.llvm.org/D63843

llvm-svn: 365524
2019-07-09 18:09:11 +00:00
Jason Liu
7fa2c0c182 [XCOFF] Implement parsing symbol table for xcoffobjfile and output as yaml format
Summary:
This patch implement parsing symbol table for xcoffobjfile and
output as yaml format. Parsing auxiliary entries of a symbol
will be in a separate patch.

The XCOFF object file (aix_xcoff.o) used in the test comes from
-bash-4.2$ cat test.c
extern int i;
extern int TestforXcoff;
int main()
{
i++;
TestforXcoff--;
}

Patch by DiggerLin

Reviewers: sfertile, hubert.reinterpretcast, MaskRay, daltenty

Differential Revision: https://reviews.llvm.org/D61532

llvm-svn: 361832
2019-05-28 14:37:59 +00:00
Fangrui Song
a07a8b5b12 [Object] Change ObjectFile::getSectionContents to return Expected<ArrayRef<uint8_t>>
Change
std::error_code getSectionContents(DataRefImpl, StringRef &) const;
to
Expected<ArrayRef<uint8_t>> getSectionContents(DataRefImpl) const;

Many object formats use ArrayRef<uint8_t> as the underlying type, which
is generally better than StringRef to represent binary data, so change
the type to decrease the number of type conversions.

Reviewed By: ruiu, sbc100

Differential Revision: https://reviews.llvm.org/D61781

llvm-svn: 360648
2019-05-14 04:22:51 +00:00
Sean Fertile
b7773a156f [Object][XCOFF] Add an XCOFF dumper for llvm-readobj.
Patch adds support for dumping of file headers with llvm-readobj. XCOFF
object files are added to test dumping a well formed file, and dumping
both negative timestamps and negative symbol counts, both of which are
allowed in the XCOFF definition.

Differential Revision: https://reviews.llvm.org/D60878

llvm-svn: 359878
2019-05-03 12:57:07 +00:00
Fangrui Song
228858c00c [Object] Change getSectionName() to return Expected<StringRef>
Summary:
It currently receives an output parameter and returns
std::error_code. Expected<StringRef> fits for this purpose perfectly.

Differential Revision: https://reviews.llvm.org/D61421

llvm-svn: 359774
2019-05-02 10:32:03 +00:00
Sean Fertile
5f6d6445c2 [Object][XCOFF] Add intial support for section header table.
Adds a representation of the section header table to XCOFFObjectFile,
and implements enough to dump the section headers with llvm-obdump.

Differential Revision: https://reviews.llvm.org/D60784

llvm-svn: 359244
2019-04-25 21:36:04 +00:00
Hubert Tong
bf6e074ab0 [XCOFF] Add functionality for parsing AIX XCOFF object file headers
Summary:
1. Add functionality for parsing AIX XCOFF object files headers.
2. Only support 32-bit AIX XCOFF object files in this patch.
3. Print out the AIX XCOFF object file header in YAML format.

Reviewers: sfertile, hubert.reinterpretcast, jasonliu, mstorsjo, zturner, rnk

Reviewed By: sfertile, hubert.reinterpretcast

Subscribers: jsji, mgorny, hiraditya, jdoerfert, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59419

Patch by Digger Lin

llvm-svn: 357663
2019-04-04 00:53:21 +00:00