Commit Graph

11 Commits

Author SHA1 Message Date
Fangrui Song 52fa1d1a02 [Driver][AVR] Fix warn_drv_avr_stdlib_not_linked condition
Many options (-fsyntax-only, -E, -S, etc) skip the link action phase which the
existing condition does not account for.

Since the code no longer specifies OPT_c, I think a single RUN line about -c
not leading to a warning is sufficient. Adding one for all of -E,
-fsyntax-only, -S would be excessive.

Reviewed By: benshi001

Differential Revision: https://reviews.llvm.org/D122553
2022-03-28 10:27:16 -07:00
Fangrui Song 17ea5bf1d5 Revert "[Driver][AVR] Fix warn_drv_avr_stdlib_not_linked condition"
This reverts commit 16524d2f1b.

The test caused some warnings when avr-gcc was not installed.
2022-03-28 10:11:45 -07:00
Fangrui Song 16524d2f1b [Driver][AVR] Fix warn_drv_avr_stdlib_not_linked condition
Many options (-fsyntax-only, -E, -S, etc) skip the link action phase which the
existing condition does not account for.

Since the code no longer specifies OPT_c, I think a single RUN line about -c
not leading to a warning is sufficient. Adding one for all of -E,
-fsyntax-only, -S would be excessive.

Reviewed By: benshi001

Differential Revision: https://reviews.llvm.org/D122553
2022-03-28 09:43:36 -07:00
Ben Shi 653836251a [clang][AVR] Set '-fno-use-cxa-atexit' to default
AVR is baremetal environment, so the avr-libc does not support
'__cxa_atexit()'.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D118445
2022-01-30 02:26:19 +00:00
Ben Shi b31199bab4 [AVR][clang] Improve search for avr-libc installation path
Search avr-libc path according to avr-gcc installation at first,
then other possible installed pathes.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D107682
2021-08-17 11:51:35 +08:00
Fangrui Song b978df4af4 [Driver][test] Improve avr-toolchain.c
Reviewed By: benshi001, mhjacobson

Differential Revision: https://reviews.llvm.org/D107797
2021-08-09 20:25:33 -07:00
Matt Jacobson dae7adda94 [AVR][clang] Pass '-fno-use-init-array' to cc1 as default
On AVR, '.ctors' is used, not '.init_array'. Make this the default
unless specifically overridden by driver argument.

This matches gcc, and it matches the behavior in (e.g.) the NetBSD
driver (for certain OS variants).

Reviewed by: MaskRay

Differential Revision: https://reviews.llvm.org/D107610
2021-08-06 10:14:23 +08:00
Mikhail Goncharov 8006ac7fe4 fix test for symlinked clang c1ee4fb5af 2021-05-31 13:29:33 +02:00
Ben Shi c1ee4fb5af [clang][AVR] Add avr-libc/include to clang system include paths
Reviewed By: dylanmckay

Differential Revision: https://reviews.llvm.org/D97669
2021-05-30 22:39:07 +08:00
Haojian Wu 9f4a935b2a No canonical-prefixes match in avr-toolchain.c.
llvm-svn: 291096
2017-01-05 10:06:58 +00:00
Dylan McKay 924fa3abdc Add AVR target and toolchain to Clang
Summary:
Authored by Senthil Kumar Selvaraj

This patch adds barebones support in Clang for the (experimental) AVR target. It uses the integrated assembler for assembly, and the GNU linker for linking, as lld doesn't know about the target yet.

The DataLayout string is the same as the one in AVRTargetMachine.cpp. The alignment specs look wrong to me, as it's an 8 bit target and all types only need 8 bit alignment. Clang failed with a datalayout mismatch error when I tried to change it, so I left it that way for now.

Reviewers: rsmith, dylanmckay, cfe-commits, rengolin

Subscribers: rengolin, jroelofs, wdng

Differential Revision: https://reviews.llvm.org/D27123

llvm-svn: 291082
2017-01-05 05:20:27 +00:00