tinygo

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Commit Graph

Author	SHA1	Message	Date
Ayke van Laethem	dbfaaf7c13	main: implement `tinygo lldb` subcommand LLDB mostly works on most platforms, but it is still lacking in some features. For example, it doesn't seem to support RISC-V yet (coming in LLVM 12), it only partially supports AVR (no stacktraces), and it doesn't seem to support the Ctrl-C keyboard command when running a binary for another platform (e.g. with GOOS=arm64). However, it does mostly work, even on baremetal systems.	3 years ago
Ayke van Laethem	f706219996	builder: hard code Clang compiler At the moment, all targets use the Clang compiler to compile C and assembly files. There is no good reason to make this configurable anymore and in fact it will make future changes more complicated (and thus more likely to have bugs). Therefore, I've removed support for setting the compiler. Note that the same is not true for the linker. While it makes sense to standardize on the Clang compiler (because if Clang doesn't support a target, TinyGo is unlikely to support it either), linkers will remain configurable for the foreseeable future. One example is Xtensa, which is supported by the Xtensa LLVM fork but doesn't have support in ld.lld yet. I've also fixed a bug in compileAndCacheCFile: it wasn't using the right CFlags for caching purposes. This could lead to using stale caches. This commit fixes that too.	4 years ago
Ayke van Laethem	f06d7d1bd6	builder: run tools (clang, ...) as separate processes This is necessary because LLVM defines many options in global variables that are modified when invoking Clang. In particular, LLVM 10 seems to have a bug in which it always sets the -pgo-warn-misexpect flag. Setting it multiple times (over various cc1 invocations) results in an error: clang (LLVM option parsing): for the --pgo-warn-misexpect option: may only occur zero or one times! This is fixed by running the Clang invocation in a new `tinygo` invocation. Because we've had issues with lld in the past, also run lld in a separate process so similar issues won't happen with lld in the future.	5 years ago

Author

SHA1

Message

Date

Ayke van Laethem

dbfaaf7c13

main: implement `tinygo lldb` subcommand

LLDB mostly works on most platforms, but it is still lacking in some
features. For example, it doesn't seem to support RISC-V yet (coming in
LLVM 12), it only partially supports AVR (no stacktraces), and it
doesn't seem to support the Ctrl-C keyboard command when running a
binary for another platform (e.g. with GOOS=arm64). However, it does
mostly work, even on baremetal systems.

3 years ago

Ayke van Laethem

f706219996

builder: hard code Clang compiler

At the moment, all targets use the Clang compiler to compile C and
assembly files. There is no good reason to make this configurable
anymore and in fact it will make future changes more complicated (and
thus more likely to have bugs). Therefore, I've removed support for
setting the compiler.

Note that the same is not true for the linker. While it makes sense to
standardize on the Clang compiler (because if Clang doesn't support a
target, TinyGo is unlikely to support it either), linkers will remain
configurable for the foreseeable future. One example is Xtensa, which is
supported by the Xtensa LLVM fork but doesn't have support in ld.lld
yet.

I've also fixed a bug in compileAndCacheCFile: it wasn't using the right
CFlags for caching purposes. This could lead to using stale caches. This
commit fixes that too.

4 years ago

Ayke van Laethem

f06d7d1bd6

builder: run tools (clang, ...) as separate processes

This is necessary because LLVM defines many options in global variables
that are modified when invoking Clang. In particular, LLVM 10 seems to
have a bug in which it always sets the -pgo-warn-misexpect flag. Setting
it multiple times (over various cc1 invocations) results in an error:

    clang (LLVM option parsing): for the --pgo-warn-misexpect option: may only occur zero or one times!

This is fixed by running the Clang invocation in a new `tinygo`
invocation.

Because we've had issues with lld in the past, also run lld in a
separate process so similar issues won't happen with lld in the future.

5 years ago

3 Commits (3d0c6dd02d6bff8a379fcdb9d4d0aeb1b5ce8ba7)