Commit graph

8130 commits

Author SHA1 Message Date
George Koehler 543bbcb9ab Declare raise() for Mac OS X.
This prevents the warning, "implicit declaration of function raise",
in programs that call raise().  I forgot to declare it because the
function raise() is in libc but the declaration goes in libsys.
2016-11-30 14:33:40 -05:00
David Given 960584c0f3 Replace the hacky and broken pipeline in testdriver.sh with a custom-written
tool in C; much more robust and easier to understand, as well as avoiding the
dependency on timeout (which isn't Posix).
2016-11-29 20:59:43 +01:00
George Koehler 0c2b6f523c Enable top and make other tweaks in plat/osxppc/descr
David Given made top for PowerPC.  Copy the asopt phase (running top)
from linuxppc to osxppc.

Remove CC_ALIGN=-Vr to become compatible with Apple's gcc.  Apple uses
left adjustment for bitfields; the first bitfield is on the left side
(the big end), not the right side.

Remove unused variables C_LIB and OLD_C_LIB; the file libc-ansi.a
doesn't exist.

Change MACHOPT_F from -m10 to -m3.  This means to use no more than 3
adds and shifts to optimize a multiply by a constant.  I pick -m3
because -m4 can use too many instructions.  At -m4, the compiler
rewrites

    n * 14

as

    s = n << 1
    (s << 3) + (0 - s)

This means (n * 16 - n * 2), but even at ack -O6, the compiler doesn't
rewrite (a + (0 - b)) as (a - b).  The compiler emits 5 instructions:
2 of rlinmw for 2 left shifts, then addi to load 0 in a register, subf
to subtract from that 0, then add.  These 5 instructions cost 5 cycles
on the MPC7450, using the cycle counts from mach/powerpc/ncg/table.

At -m3, (n * 14) becomes 2 instructions: addi to load 14 in a register
and mullw to multiply.  This also costs 5 cycles (because mullw costs
4 cycles), but uses less space.
2016-11-28 20:58:51 -05:00
George Koehler ecdfb61c9d Merge branch 'default' into kernigh-osx
This brings in David Given's PowerPC changes, including the addition
of the modern code generator (mcg) for PowerPC.

Resolve minor conflicts in top build.lua and util/led/main.c
2016-11-28 16:20:56 -05:00
David Given bbcc08a6b6 Fix putchar() return value. 2016-11-28 21:38:46 +01:00
George Koehler 466bc555fe Add getdirentries() and stat() for Mac OS X.
Also add fstat() and lstat().  I don't #define the constants for
st_mode or d_type, but I provide enough to get the block size of a
file and to list the names in a directory.  Some fields of struct stat
get truncated, see XXX in plat/osx/include/sys/stat.h.

In struct dirent, the inode field might be d_ino or d_fileno.  I
picked d_ino because Apple's sys/dirent.h uses d_ino (but Apple's
manual pages use d_fileno).
2016-11-28 14:32:49 -05:00
David Given 9f34262f95 Implement enough libb to make 'Hello, world!' work. 2016-11-27 22:05:15 +01:00
David Given fbd6e8f63d Add support for consecutive labels; needed by the B compiler. 2016-11-27 21:18:00 +01:00
David Given b9665c7c99 Fix some basic showstopping bugs; compilation now works up to failing to find
the libb standard library.
2016-11-27 21:08:14 +01:00
David Given 4485d89b23 Hook the B compiler up to the compiler driver. 2016-11-27 20:48:07 +01:00
David Given 5bce5fc4da Change the extension used by Basic files for .b to .bas, to avoid conflicts
with B.
2016-11-27 20:38:33 +01:00
David Given 707585b67d Perform initial (i.e. feature complete and compiling, but not necessarily
working) port of the B compiler to EM.
2016-11-27 20:28:19 +01:00
David Given cfc723250f Initial EM-ification; start threading word size stuff through the code. 2016-11-27 11:58:59 +01:00
David Given a69045c0e4 Import aap@github's B compiler. 2016-11-27 11:37:25 +01:00
David Given 4f446467c8 Suppress spurious message when testdriver probes for a testing method. 2016-11-26 21:50:56 +01:00
David Given 4633ca0886 Updated the README. 2016-11-26 19:25:02 +01:00
David Given 9641801455 Merge pull request #17 from davidgiven/dtrg-tests
Refactor the tests so they run for several plats.
2016-11-26 12:59:13 +01:00
David Given 2dc083f436 Use command -v rather than hash to detect commands (command is Posix and works
on OpenBSD).
2016-11-26 12:53:36 +01:00
David Given a596973f28 OSX doesn't work; let's not bother building it. 2016-11-26 12:52:09 +01:00
David Given a9a0b37b14 Plats which use aelflod need to depend on it. 2016-11-26 12:07:08 +01:00
David Given dff67447fe qmu-system-x86 isn't in Travis' repository? Let's try qemu-user. 2016-11-26 12:00:59 +01:00
David Given 98c761d5c0 Enable tests for linux386 via qemu-i386. 2016-11-26 11:58:02 +01:00
David Given cf33bd6cc4 Enable tests for linuxppc via qemu-ppc. 2016-11-26 11:56:17 +01:00
David Given 90e3d45c69 Travis only whitelists the -x86 version of qemu. 2016-11-26 11:29:57 +01:00
David Given 8a58614aef Rework the tests to run on pc86; lots of test fixes for the brk() test, which
was nearly useless; lots of fixes to qemuppc and pc86 sbrk(), which was broken;
change the pc86 console to echo output to the serial port (needed for running
tests on qemu).
2016-11-26 11:23:25 +01:00
David Given 5f66f06dc6 Refactored the tests to make the generic across different plats. 2016-11-25 21:02:51 +01:00
David Given bfa8e501a3 Make pc86 echo console output to the serial port, so qemu can pipe it to
stdout.
2016-11-25 20:28:41 +01:00
David Given ed181a8d20 Ansify Paranoia, because I was getting annoyed by all the compiler warnings on
every build.
2016-11-25 20:01:43 +01:00
David Given 3e69d1185a Fix a whole lot more stray prototypes. 2016-11-24 21:47:40 +01:00
David Given b8a2935f2b Fix more invalid prototypes of stdlib functions; build dependency fix. 2016-11-24 21:26:05 +01:00
David Given b5980af06f Linker groups don't work on OSX; go back to the hacky way of simply specifying
the inputs multiple times, which seems to work.
2016-11-24 21:03:27 +01:00
David Given 7435c06ff4 Non-standard stdlib prototypes are not our friend (and not OSX's friend, which
implements strcpy() &co as macros).
2016-11-24 20:48:51 +01:00
David Given b21197c0c7 Merge pull request #16 from davidgiven/dtrg-pascal-mark-release
Remove the Mark() and Release() procedures from Pascal.
2016-11-24 20:45:14 +01:00
David Given c084f9f224 Remove the Mark() and Release() procedures from the Pascal compiler and
standard library, because they never worked and come from an achingly old
version of the Pascal specification. Fix the implementations of New() and
Dispose() to use the standard C memory allocator rather than rolling their own
(also in C). Write test!
2016-11-24 20:35:26 +01:00
David Given 899f1ea4f3 Forgot to check in the change to qemuppc's brk() to set errno on memory
allocation failure.
2016-11-24 19:47:11 +01:00
David Given 3b46aadf94 Merge pull request #15 from davidgiven/dtrg-allocs
Fix various memory allocation bugs.
2016-11-23 22:35:50 +01:00
David Given 991f47098c Add a test for brk() and sbrk(). 2016-11-23 22:28:21 +01:00
David Given 6cd2a9ba81 Add a test for calloc(). 2016-11-23 22:22:04 +01:00
David Given 9481487e3d Implement calloc() (accidentally got dropped with the malloc rewrite). 2016-11-23 22:16:25 +01:00
David Given 36ab90385f Change sbrk() to take an int rather than an intptr_t (following the OpenBSD way
rather than the Linux way; various non-C bits of the ACK assume it takes an
int, so it's cleaner).
2016-11-23 22:06:24 +01:00
David Given 0aac9aafd3 Combine brk() with sbrk(); modify brk() to update the sbrk(0) value. 2016-11-23 22:04:21 +01:00
David Given 0b21f18d4c Merge pull request #14 from davidgiven/dtrg-experimental-mcgg
Merge mcg code generator to trunk
2016-11-23 21:58:31 +01:00
David Given 2367b011f5 Don't install qemu-system-ppc until openbios-ppc gets whitelisted by Travis. 2016-11-23 21:53:14 +01:00
George Koehler b6b707d9df Make working gettimeofday() for Mac OS X.
The system call puts the time in a pair of registers, not in the
timeval structure.  Add code to move the time to the structure, so
programs see the correct time, not garbage.  This fixes our example
programs that use the time as a random seed.
2016-11-23 13:25:55 -05:00
George Koehler 98f2273d97 Teach cvmach to emit the symbol table.
This preserves the name and value of every symbol.  The type and other
info of a symbol might be lost.  In gdb, one can now "disas main" or
"disas '.ret'" to disassemble functions by name.

Most symbols are in sections, so I also teach cvmach to emit the Mach
section headers.  The entry point in plat/osx*/descr moves down to
make room for the section headers and LC_SYMTAB.

I fix some bugs in calculations of cvmach.  They were wrong if ROM had
a greater alignment than TEXT, or if DATA did not start on a page
boundary.  I introduce machseg[] to simplify the mess of variables in
main().  I declare most functions as static.  Also, cvmach becomes the
first program to #include <object.h>.
2016-11-22 17:16:30 -05:00
George Koehler 19310d2521 Make possible to #include <object.h>.
This header declares functions in libobject.  Our programs never
included object.h, but called functions in libobject without declaring
them.  So, our build system never put object.h in the include path;
any #include <object.h> would fail to find the header.

With this commit, a program may #include <object.h> if it has
modules/src/object+lib in its deps.

Declare structs in object.h so we can use them in prototypes without
gcc warning, "'struct whatever' declared inside parameter list".

Remove inclusion of ansi.h from object.h.  Programs would need to
depend on modules+headers to get ansi.h in the include path.
2016-11-22 11:13:14 -05:00
David Given 6e9c2d5c0d Also call .trp .trap, for ncg compatibility. 2016-11-20 19:39:28 +01:00
David Given f8fa3ece42 inn on ncg now passes the CPU tests. 2016-11-20 19:35:34 +01:00
David Given 2d0bc7ef0d Finally fix the build system issue where ackprogram would try to explicitly
link all the language libraries.
2016-11-20 18:57:44 +01:00
George Koehler 88c2ea63aa Use uint32_t in util/led/main.c
This uses uint32_t for the base, file offset, and alignment of each
section, to be consistent with the usage of uint32_t in h/out.h

Also declare setbit() as static.
2016-11-20 11:38:16 -05:00