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11 Commits

Author SHA1 Message Date
Siva Chandra Reddy 3cc2161c89 [libc] Move the x86_64 syscall functions to OSUtil. 
Reviewed By: michaelrj, lntue

Differential Revision: https://reviews.llvm.org/D116177
 2021-12-22 21:48:57 +00:00
Guillaume Chatelet 7c2ece523d [libc] Normalize LIBC_TARGET_MACHINE 
Current implementation defines LIBC_TARGET_MACHINE with the use of CMAKE_SYSTEM_PROCESSOR.
Unfortunately CMAKE_SYSTEM_PROCESSOR is OS dependent and can produce different results.
An evidence of this is the various matchers used to detect whether the architecture is x86.

This patch normalizes LIBC_TARGET_MACHINE and renames it LIBC_TARGET_ARCHITECTURE.
I've added many architectures but we may want to limit ourselves to x86 and ARM.

Differential Revision: https://reviews.llvm.org/D101524
 2021-05-05 15:52:42 +00:00
Siva Chandra Reddy 5d59385ba6 [libc] Setup TLS in x86_64 loader. 
The new code added is still very x86_64 specific. AArch64 support will
be added very soon and refactoring of the loader code will be done as
part of the patches adding it.

Reviewed By: asteinhauser

Differential Revision: https://reviews.llvm.org/D82700
 2020-08-07 23:19:03 -07:00
Siva Chandra Reddy fd3295fb6f [libc] Skip entrypoints not present in the entrypoints list. 
Summary:
If a test depends on a skipped entrypoint, then the test is also
skipped. This setup will be useful as we gradually add support for
more operating systems and target architectures.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D81489
 2020-06-09 14:40:28 -07:00
Siva Chandra Reddy 7f12512db2 [libc][Take 2] Propagate entrypoint deps to downstream targets. 
This reverts commit a8086ba4ac.
Setting couple of target properties to an empty string was missed in the
previous commit.
 2020-04-21 10:29:09 -07:00
Siva Chandra Reddy a8086ba4ac [libc] Revert "Propagate entrypoint deps to downstream targets." 
This reverts commit 20cb440ea2 as the
target llvmlibc seems to be failing on the bots.
 2020-04-21 10:10:18 -07:00
Siva Chandra Reddy 20cb440ea2 [libc] Propagate entrypoint deps to downstream targets. 
Deps are recrusively evaluated at the place they are needed. With this
change, one does not have to list recursive deps of entrypoints when
listing test targets. One will still have to explicitly list all
entrypoint objects when setting up an "add_entrypoint_library" target.

Reviewers: abrachet

Differential Revision: https://reviews.llvm.org/D78537
 2020-04-21 09:58:55 -07:00
Siva Chandra Reddy e4767a6f14 [libc] Add fully-qualified target names. 
Only targets setup by the special LLVM libc rules now have fully
qualified names. The naming style is similar to fully qualified names in
Python.

Reviewers: abrachet, PaulkaToast, phosek

Differential Revision: https://reviews.llvm.org/D77340
 2020-04-10 18:01:52 -07:00
Paula Toth 66d00feb18 [libc][NFC] Make all top of file comments consistent. 
Summary:
Made all header files consistent based of this documentation: https://llvm.org/docs/CodingStandards.html#file-headers.
And did the same for all source files top of file comments.

Reviewers: sivachandra, abrachet

Reviewed By: sivachandra, abrachet

Subscribers: MaskRay, tschuett, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D77533
 2020-04-08 10:18:37 -07:00
Siva Chandra Reddy 51b899c846 [libc] Extend add_object rule to handle helper object libraries. 
The rule is now called add_object_library.

Reviewers: abrachet

Differential Revision: https://reviews.llvm.org/D76826
 2020-03-28 00:07:46 -07:00
Siva Chandra Reddy f6ccb4fef2 [libc] Add a simple x86_64 linux loader. 
This adds a very simple loader. This will be extended to a full loader
in future patches. A utility rule to add unittests has been added to
serve us while we are building out the full loader.

Reviewers: abrachet, phosek

Differential Revision: https://reviews.llvm.org/D76412
 2020-03-25 10:12:35 -07:00