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Author SHA1 Message Date
David Given 51862cff82 Merge pull request #32 from dram/add-execve 
Add execve() system call for Linux
 2017-01-07 23:23:00 +01:00
Xin Wang 24d26b2826 Add execve() system call for Linux 2017-01-06 18:33:52 +08:00
David Given 0e10329876 Fix an issue throughout where B couldn't be built by ackprogram due to symbol 
laziness.
 2016-12-29 17:11:53 +00:00
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 a9a0b37b14 Plats which use aelflod need to depend on it. 2016-11-26 12:07:08 +01:00
David Given cf33bd6cc4 Enable tests for linuxppc via qemu-ppc. 2016-11-26 11:56:17 +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 48e74f46fc Add the very experimental qemuppc plat, intended to generate minimal images 
which can be emulated using qemu (for, hopefully, a test suite). Currently it
generates images which won't run because there's no RAM.
 2016-11-12 19:20:58 +01:00
David Given 8c3670483f Get top working with the PowerPC; use it to eliminate useless branches and 
moves.
 2016-10-29 23:37:11 +02:00
David Given a8c4dac67c Merge from default (merging in George Koehler's PowerPC changes). 2016-10-29 22:40:40 +02:00
David Given 5f0164db62 Bolt mcg into the PowerPC backend. It doesn't build yet, but it is generating 
*some* code.
 2016-10-17 00:06:06 +02:00
George Koehler ce5faba919 Remove .linenumber and .filename; use hol0 and hol0+4. 
We need this because some .e files in lang/ are using 'loe 0' and 'lae
4' to load the line number from hol0 and filename from hol0+4.
 2016-09-30 13:40:36 -04:00
George Koehler b427d33f9f Define the begdata, begrom, begbss symbols for linuxppc. 
I copied the definitions from linux386 and linux68k.

This change also moves _errno and the other common symbols in boot.s
from .text to .bss.  Common symbols belong in .bss, but the assembler
seems dumb enough to put them in any section.
 2016-09-30 13:21:42 -04:00
George Koehler 865ef629dd Multiple tweaks to plat/linuxppc/descr 
Don't define __POWERPC.  I don't know any other compiler that defines
__POWERPC and don't want to invent a new macro.  Apple's gcc 4.0.1
from Xcode 2.5 defines __ppc__, _ARCH_PPC, __POWERPC__.  Debian's gcc
4.9.2-10 defines _ARCH_PPC, __PPC__, __powerpc__, __PPC, __powerpc,
PPC, powerpc.

Move the base vm address from 0x80000000 down to 0x10000000, as this
is where Debian loads /bin/true.  This is still higher than the base
addresses for linux386 and linux68k.

Sync led's arguments with linux386.
 2016-09-21 16:26:30 -04:00
George Koehler 5b69777647 Rename our pseudo-opcode 'la' to 'li32'. 
GNU as has "la %r4,8(%r3)" as an alias for "addi %r4,%r3,8", meaning
to load the address of the thing at 8(%r3).  Our 'la', now 'li32',
makes an addis/ori pair to load an immediate 32-bit value.  For
example, "li32 r4,23456789" loads a big number.
 2016-09-18 17:03:23 -04:00
David Given 80cb6ba927 Eliminate the RELOH2 relocation, as it never worked --- the address would be 
calculated incorrectly because of overflow errors.

Replace it with an extended RELOPPC relocation which understands addis/ori
pairs; add an la pseudoop to the assembler which generates these and the
appropriate relocation. Make good.

--HG--
branch : dtrg-experimental-powerpc-branch
 2016-09-17 12:43:15 +02:00
David Given 45a950571d Mostly add support for the experimental and largely broken linuxppc platform. 
(Doesn't quite build.)

--HG--
branch : dtrg-experimental-powerpc-branch
 2016-09-15 23:12:03 +02:00
David Given f67c98e239 Distributions are a pain --- let's not bother any more. Instead, we just tag 
the repository and download a complete snapshot, old and ancient stuff and all.
 2016-09-02 23:00:38 +02:00
David Given 612e38f1c6 Remove the old make-based build system, plus some big chunks of horribly 
obsolete protomake build system.
 2016-09-02 22:17:51 +02:00
David Given 88bd7ce126 Remove defunct pmfiles. 
--HG--
branch : default-branch
 2016-06-03 13:56:50 +02:00
David Given 92817a6ad7 Allow platforms to specify size of long double; seperate alignment from size. 
--HG--
branch : dtrg-videocore
 2013-05-21 19:18:11 +01:00
David Given 11377070fd Update distribution files. 
--HG--
branch : dtrg-buildsystem
 2013-05-15 23:46:15 +01:00
David Given 07453d184a Top, topgen, aelflod. Moved the libraries back into the platform-specific 
directories --- wrangling descr files was too hard. C programs can be built
for cpm, pc86, linux386, linux68k!

--HG--
branch : dtrg-buildsystem
rename : util/ack/build.mk => util/led/build.mk
rename : util/LLgen/build.mk => util/topgen/build.mk
 2013-05-13 23:26:15 +01:00
David Given 442306d557 Split off some of the platform-independent stuff (such as as and ncg). 
--HG--
branch : dtrg-buildsystem
rename : plat/pc86/build.mk => mach/i386/build.mk
rename : plat/pc86/build.mk => mach/i80/build.mk
rename : plat/pc86/build.mk => mach/i86/build.mk
rename : plat/pc86/build.mk => mach/m68020/build.mk
rename : plat/pc86/build.mk => mach/powerpc/build.mk
 2013-05-13 22:12:46 +01:00
David Given 81778b603f Merge updates from trunk. 
--HG--
branch : dtrg-buildsystem
 2013-05-13 12:37:27 +01:00
David Given b0c238eb5d Made a start on building the runtimes for each platform and language; the 
Linuxes all build.

--HG--
branch : dtrg-buildsystem
rename : modules/src/em_mes/build.mk => modules/src/read_em/build.mk
rename : plat/pc86/build.mk => plat/linux386/build.mk
rename : plat/pc86/build.mk => plat/linux68k/build.mk
rename : plat/pc86/build.mk => plat/linuxppc/build.mk
rename : util/ack/build.mk => util/misc/build.mk
 2013-05-12 23:51:55 +01:00
David Given b9b808e01a Apply George Koehler's aelflod fix for generating non-EM_386 binaries. 
Adjust platforms to use it. Fix some bugs in the linux386 platform.

--HG--
branch : dtrg-experimental-powerpc
 2013-05-09 15:54:23 +01:00
David Given c93cb69959 Check in incomplete Linux PowerPC and M68K work. 
--HG--
branch : dtrg-experimental-powerpc
 2013-05-08 00:48:48 +01:00