This was making sure that the overflow in some our opcode
implementations was visible to the C code so that overflow
detection would work in gcc and clang.
This is now handled on those compilers by using some built-ins
that detect overflow.
The `-fwrapv` should no longer be needed.
ClosesInterlisp/medley#90.
This no longer had anything to do with profiling and was
only doing some defines for the switch case block addresses,
which we no longer need since there's no longer optional
asm generated for them.
In the old build system, `ldeether` is built as follows:
```
$(OSARCHDIR)ldeether : $(SRCDIR)ldeether.c $(DLPIFILES)
$(CC) $(CFLAGS) -I$(INCDIR) $(SRCDIR)ldeether.c $(DLPIFILES) $(LDEETHERLDFLAGS) -o $(OSARCHDIR)ldeether
```
Instead of linking all of Maiko, it just links in the `src/dlpi.c`
object file.
* Use gcc / clang overflow builtins.
This avoids expensive checks for overflow that employ undefined
behavior.
This is a step along the way towards replacing the old hand-written
assembler that did the same thing in terms of using the CPU's
overflow detection.
* Remove unimplemented SPARC asm for multiplication, divide, and remainder.
This wasn't implemented before, and for multiplication, it is now
implemented for gcc and friends using overflow detection.
* Remove USE_INLINE_ARITH.
Now that we have the compiler built-ins for detecting overflow,
we don't need custom assembly for it for each platform.
For now, we keep, but still don't use, the code that do a hot
path through the dispatch loop for some math. This code isn't
actually running or in use, but it is separate from how the
other inline arithmetic was being performed. These are the
`fast_op_*` functions that are implemented in assembler.
We now can handle these via `inc/maiko/platform.h` and the
constants defined there.
This doesn't change `OS5` for Solaris yet as that's a much wider
set of changes.
This wasn't actually hooked up any more, so it was pretty much
all dead code. The handling of this in the command line options
is gone.
In `bin/makefile-tail`, `DEVFILES` and `LIBFILES` became identical, so
`DEVFILES` went away.
* Delete code related to NATIVETRAN feature.
This was obsolete work that had been done for generating
native code from the bytecode.
ClosesInterlisp/medley#89.
* Remove unused SaveD6.
Add standardized options for Oracle Developer Studio C compiler (aka SunPro C)
Using -funsigned-char causes the Oracle Developer Studio C compiler typedefs for
int8_t to become unsigned (uint8_t) rather than signed, with no warning or
other indication that this has happened.
The NOFORN flag controls foreign function interface code, which
was written using the dld_* APIs which haven't existed in years.
There was a GNU dld that provided this API, but it was withdrawn
in 2006.
If this code is to be re-enabled, it will have to be changed to
use the `dlopen` family of APIs.
* Support building on OpenBSD, x86-64
* Clean up OpenBSD Makefile
* Add OpenBSD to cmake build
* Use clang as CC for OpenBSD
Co-authored-by: Alex Segura <alex@lispm.dev>
We currently build for ISO C90 with GNU extensions. The GNU
extensions include both library and language features.
Compiling without GNU extensions results in a number of compilation
failures due to use of those library features.
With this, we'll build for ISO C99 with the GNU extensions and
can evaluate what's going on with those library features in the
future.
This doesn't remove or replace the existing build system, but
provides an alternative. It allows for faster builds with proper
incremental builds, as well as using tools such as `clang-tidy`,
which work better when they have a compiler commands 'database'.
