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8 Commits

Author SHA1 Message Date
Fangrui Song dbc96b518b Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" 
This reverts commit 789a46f2d7.

Accidentally committed.
 2020-02-03 10:09:39 -08:00
Fangrui Song 789a46f2d7 [CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition 
Summary:
Clang -fpic defaults to -fno-semantic-interposition (GCC -fpic defaults
to -fsemantic-interposition).
Users need to specify -fsemantic-interposition to get semantic
interposition behavior.

Semantic interposition is currently a best-effort feature. There may
still be some cases where it is not handled well.

Reviewers: peter.smith, rnk, serge-sans-paille, sfertile, jfb, jdoerfert

Subscribers: dschuff, jyknight, dylanmckay, nemanjai, jvesely, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, arphaman, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73865
 2020-02-03 09:52:48 -08:00
Alexander Richardson 6cdd12a3ba Update avr attributes test for output change in r340519 
After this commit there is an addrspace(1) before the attribute #. Since
these tests are only checking the value of the attribute add a {{.*}} to
make the test resilient to future output changes.

llvm-svn: 340522
 2018-08-23 10:21:36 +00:00
Dylan McKay 315edb0216 [AVR] Fix __AVR_xxx macro definitions; authored by Peter Wu 
Summary:
The -mmcu option for GCC sets macros like __AVR_ATmega328P__ (with the trailing
underscores), be sure to include these underscores for Clangs -mcpu option.

See "AVR Built-in Macros" in https://gcc.gnu.org/onlinedocs/gcc/AVR-Options.html

Reviewers: jroelofs, dylanmckay

Reviewed By: jroelofs, dylanmckay

Subscribers: efriedma, cfe-commits

Differential Revision: https://reviews.llvm.org/D29817

llvm-svn: 294869
 2017-02-11 21:06:07 +00:00
Dylan McKay e8232d73f5 [AVR] Add support for the 'interrupt' and 'naked' attributes 
Summary:
This teaches clang how to parse and lower the 'interrupt' and 'naked'
attributes.

This allows interrupt signal handlers to be written.

Reviewers: aaron.ballman

Subscribers: malcolm.parsons, cfe-commits

Differential Revision: https://reviews.llvm.org/D28451

llvm-svn: 294402
 2017-02-08 05:09:26 +00:00
Dylan McKay ecb6e7b83c Revert "Revert "[AVR] Allow specifying the CPU on the command line"" 
This reverts commit 7ac30e0f839fdab6d723ce2ef6a5b7a4cf03d150.

llvm-svn: 294282
 2017-02-07 06:04:18 +00:00
Diana Picus 37a2d6d699 Revert "[AVR] Allow specifying the CPU on the command line" 
This reverts commit r294177. It seems to have broken some buildbots.

llvm-svn: 294180
 2017-02-06 11:35:42 +00:00
Dylan McKay 8464c9b579 [AVR] Allow specifying the CPU on the command line 
Summary:
This tells clang about all of the different AVR microcontrollers.

It also adds code to define the correct preprocessor macros for each
device.

Reviewers: jroelofs, asl

Reviewed By: asl

Subscribers: asl, cfe-commits

Differential Revision: https://reviews.llvm.org/D28346

llvm-svn: 294177
 2017-02-06 09:07:56 +00:00