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87 commits

Author SHA1 Message Date
David Given
5bae29a00c ego now builds and is used. 
This needed lots of refactoring to ego --- not all platforms have ego descr
files, and ego will just crash if you invoke it without one. I think originally
it was never intended that these platforms would be used at -O2 or above.

Plats now only specify the ego descr file if they have one.
 2016-08-21 22:01:19 +02:00
David Given
1a7b4f8729 Build the examples when doing a normal build; this exercises the compiler as a 
whole and is one step further towards a proper test suite.
 2016-08-20 14:05:24 +02:00
David Given
edee22510b liblinux is no more; its files are now in libsys. 2016-08-20 14:03:49 +02:00
David Given
52eaf753b6 rpi has a time() function; don't try to call gettimeofday(). 2016-08-20 14:03:19 +02:00
David Given
204f932ed2 Raspberry Pi backend now builds. 2016-08-20 12:40:13 +02:00
David Given
420c47c386 Fix dependency error (only shows up with make, not ninja. Odd). 2016-08-15 00:46:43 +02:00
David Given
38fa6941d5 linux68k builds now. 2016-08-14 11:34:18 +02:00
David Given
3df4906d52 Turns out I wasn't building the syscall libraries. Do so. 2016-08-14 11:23:57 +02:00
David Given
b549980af2 Wasn't exporting the plat headers; refactor to make this a little cleaner. 2016-08-14 11:01:36 +02:00
David Given
f253b6a169 linux386 builds. Also, forgot to turn back on the language runtimes. 2016-08-14 10:37:55 +02:00
David Given
262c5fedcf Biggish refactor to break cycles; my build rules were full of them. cpm builds, 
which requires top and topgen.
 2016-08-14 01:39:40 +02:00
David Given
e0b8bd221d Pascal runtime library now builds. 2016-08-13 13:07:19 +02:00
David Given
e770d09dc8 Pascal compiler builds. 2016-08-13 13:03:06 +02:00
David Given
00c67fcc0e Modula-2 runtime library now builds. 2016-08-13 12:43:44 +02:00
David Given
08b7c4aaae The Basic runtime builds now. 2016-08-12 00:24:40 +02:00
David Given
7c60c27302 The Basic compiler works now. 2016-08-12 00:19:51 +02:00
David Given
3ce4e53aa9 Most of libc builds now (missing malloc). 2016-08-08 23:55:47 +02:00
David Given
0d77cb8279 We can build our first C file. 2016-08-07 21:56:53 +02:00
David Given
5e84be70fd Massive ackbuilder refactor --- cleaner and more expressive. Lists 
are automatically flattened (leading to better build files), and the
list and filename functions are vastly more orthogonal.
 2016-08-04 23:51:19 +02:00
David Given
b2bb4ce3b2 Builds libend (the simplest library). Becoming obvious I need to rework the way 
ackbuilder deals with lists.
 2016-07-30 00:39:22 +02:00
David Given
363d13cc2f C preprocessor; tabgen; now the pc86 boot.s builds using the ack 
toolchain.
 2016-07-29 00:22:49 +02:00
David Given
a8a9d1bbfa yacc, ncgg; platform ncg builds now. 2016-07-26 23:35:30 +02:00
David Given
bff5c4019c Baby steps towards building a platform --- make the assembler work. 
Add ackbuilder support for C preprocessor files and yacc.
 2016-07-24 00:50:02 +02:00
David Given
88bd7ce126 Remove defunct pmfiles. 
--HG--
branch : default-branch
 2016-06-03 13:56:50 +02:00
David Given
4b3c1a2d07 Add missing (but probably non-working) rpi file. 
--HG--
branch : default-branch
 2016-06-02 12:21:13 +02:00
David Given
ff0c78cc78 Merge from default. 
--HG--
branch : dtrg-videocore-branch-branch
 2016-03-13 21:13:09 +01:00
David Given
9f23fbbe6a Allow machines to use cg if they wish. 
--HG--
rename : mach/proto/ncg/build.mk => mach/proto/cg/build.mk
rename : util/ncgg/build.mk => util/cgg/build.mk
 2015-03-23 00:08:51 +01:00
David Given
c72eaef8ee Add routine to set the Raspberry Pi clock to 250MHz (loads faster than the default 19.2MHz). 
--HG--
branch : dtrg-videocore
rename : plat/rpi/libsys/pi_user_to_phys.s => plat/rpi/libsys/pi_fast_mode.s
 2013-06-24 23:57:27 +01:00
David Given
d94c1c8150 Updated distr files. 
--HG--
branch : dtrg-videocore
rename : mach/i80/.distr => mach/vc4/.distr
rename : plat/cpm/.distr => plat/rpi/.distr
 2013-06-21 23:38:21 +01:00
David Given
2be811bac2 Updated VC4 docs. 
--HG--
branch : dtrg-videocore
 2013-06-21 23:21:08 +01:00
David Given
052dd9bfc0 Actually remember to set the stack pointer on startup. Reduce to stack from 16kB to a much more reasonable 1kB. 
--HG--
branch : dtrg-videocore
 2013-06-20 00:14:55 +01:00
David Given
eaf4339cd6 Implement a very crude busy-wait based select() mechanism for consol input. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/include/ack/config.h => plat/rpi/include/sys/select.h
rename : plat/rpi/libsys/time.c => plat/rpi/libsys/select.c
 2013-06-09 22:16:30 +01:00
David Given
ed6c4a85d1 Change the size of the SRAM area to 128kB (to reflect reality). 
--HG--
branch : dtrg-videocore
 2013-06-06 00:05:48 +01:00
David Given
aacabba165 Apply fix contributed by George Koehler: 
- don't crash if BSS overlaps BDOS
- fix stack initialisation bug
- fix command line argification
 2013-06-02 22:02:15 +01:00
David Given
d5a112dbfd Some more termios compatibility options. 
--HG--
branch : dtrg-videocore
 2013-05-30 23:25:22 +01:00
David Given
2054618e75 Add basic termios to the rpi platform to allow echoing/newline translation to be controlled. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/include/unistd.h => plat/rpi/include/termios.h
rename : plat/rpi/libsys/write.c => plat/rpi/libsys/tcgetattr.c
rename : plat/rpi/libsys/write.c => plat/rpi/libsys/tcsetattr.c
 2013-05-30 23:19:55 +01:00
David Given
d3e3e72860 Update from trunk. 
--HG--
branch : dtrg-videocore
 2013-05-29 15:03:48 +01:00
David Given
ae993b1eb2 Add a crude README. 
--HG--
branch : dtrg-videocore
 2013-05-26 19:54:22 +01:00
David Given
38e4726f5c Boot code now works properly in both kernel and bare-metal mode. 
--HG--
branch : dtrg-videocore
 2013-05-26 19:41:37 +01:00
David Given
e01f00e320 Allow reading from the mini UART. Add a check to not touch the UART unless it's been initialised (in case of accidents when running in kernel mode). 
--HG--
branch : dtrg-videocore
 2013-05-26 18:58:54 +01:00
David Given
bd9497be77 Renamed the pi-specific functions to be a bit cleaner. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/libsys/phys_to_user.s => plat/rpi/libsys/pi_phys_to_user.s
rename : plat/rpi/libsys/uart.s => plat/rpi/libsys/pi_uart.s
rename : plat/rpi/libsys/user_to_phys.s => plat/rpi/libsys/pi_user_to_phys.s
 2013-05-26 00:22:39 +01:00
David Given
e299cc3bcf stdio (output only) now works. 
--HG--
branch : dtrg-videocore
 2013-05-25 23:59:31 +01:00
David Given
6a672d5e96 Heap allocations now works. 
--HG--
branch : dtrg-videocore
 2013-05-25 23:28:47 +01:00
David Given
ec25fec145 Build binaries that will run bare metal. Add enough syscall library to init the uart and write text. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/libsys/libsys.h => plat/rpi/libsys/libsysasm.h
rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/phys_to_user.s
rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/uart.s
rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/user_to_phys.s
 2013-05-25 00:35:29 +01:00
David Given
8f338f9b44 Now actually runs on real hardware. 
--HG--
branch : dtrg-videocore
 2013-05-22 22:46:10 +01:00
David Given
b5e5df4a63 Allocate a user stack to run code in. 
--HG--
branch : dtrg-videocore
 2013-05-22 18:25:30 +01:00
David Given
6b5316dcfa More typo fixes. 
--HG--
branch : dtrg-videocore
 2013-05-22 00:52:58 +01:00
David Given
72542288cd Adjust bootstrap code to build kernels that work with the mailbox test app. 
--HG--
branch : dtrg-videocore
 2013-05-22 00:16:59 +01:00
David Given
5e9102955c Reworked VC4 relocations and some of the instruction encoding to be actually correct. Now generating what could be real code! 
--HG--
branch : dtrg-videocore
 2013-05-21 23:17:30 +01:00
David Given
1312fe298b Now compiles (incorrectly) the entire libc, libpc, libm2 and libbasic! 
--HG--
branch : dtrg-videocore
 2013-05-21 20:05:26 +01:00