mjb/altos/src/stm/altos-loader.ld, branch debian/1.6.8-5AltOS - the operating system for Altus Metrum products
https://git.ethernal.org/mjb/altos/atom?h=debian%2F1.6.8-52016-07-12T22:41:41+00:00Switch from GPLv2 to GPLv2+2016-07-12T22:41:41+00:00Keith Packardkeithp@keithp.com2016-07-05T16:03:49+00:00urn:sha1:1085ec5d57e0ed5d132f2bbdac1a0b6a32c0ab4a
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: arm-none-eabi-binutils now puts 'main' into .text.startup2013-12-09T03:37:53+00:00Keith Packardkeithp@keithp.com2013-12-09T03:05:01+00:00urn:sha1:2cb7a96567e1302a699f78290fab5e29693940ab
Change name of .text.ram to .ramtext, then load .text* into flash and
.ramtext into ram. This ensures that 'main' and anything else in a
random .text.* segment will get loaded into flash as appropriate.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Create per-product flash loaders2013-05-08T04:30:27+00:00Keith Packardkeithp@keithp.com2013-04-27T22:33:04+00:00urn:sha1:4a90eec4b8ee4a35711aa74c13b3f30d12c0fe08
Split the flash loader prototype into pieces so that each product can
build a custom flash loader with very little code.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Get rodata into flash, make sure sections are aligned2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-27T07:24:08+00:00urn:sha1:a2e0676f476b0e2bdd5102315ebd5904b57f384a
.rodata* needs to be in flash; otherwise strings get left in ram.
Failing to align sections makes the initialized data get dumped into
the wrong place in memory.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Shrink stm flash loader to < 4kB2013-05-08T04:30:26+00:00Keith Packardkeithp@keithp.com2013-04-23T01:32:18+00:00urn:sha1:6cd015b8b6b02bd8e0ce28f248426ae75c242b53
Saves 4kB of flash space for applications.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Add comments to the .ld files explaining how the romconfig stuff works2013-05-08T03:16:52+00:00Keith Packardkeithp@keithp.com2013-03-24T22:27:42+00:00urn:sha1:7d98fc5d3f106f3063608a2e5c69d9359061437a
Would be nice to be able to explicitly define addresses for the
romconfig variables, but I can't figure out how to make that
work. Instead, just explicitly load the files in teh right order to
make things land in the right places.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Mark .boot section as (NOLOAD)2013-05-08T03:16:52+00:00Keith Packardkeithp@keithp.com2013-03-23T09:17:04+00:00urn:sha1:db7f17980c303e442f88c8a4168351dbc2c0b1a0
For some reason, the silly linker marks things in section .boot as
data rather than bss, so they'd end up initialized by default. Force
them to be NOLOAD so they preserve values across reboot so that boot
chaining works properly.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Clean up boot loader support2013-05-08T03:16:36+00:00Keith Packardkeithp@keithp.com2013-03-11T20:21:04+00:00urn:sha1:b1a43ce313c85cb7f8f16f7f0647d9d4320ba692
Split out code into separate files.
Add support for getting back to boot loader from application.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Add program flash function2013-05-08T03:15:45+00:00Keith Packardkeithp@keithp.com2013-03-11T07:01:52+00:00urn:sha1:56a7cbbf51f5c9ebbfe17d1cc30ed807572af3cc
And get it loaded to RAM so it can execute correctly.
Nothing calls it yet...
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Make stm-flash capable of switching to application2013-05-08T03:15:43+00:00Keith Packardkeithp@keithp.com2013-03-11T04:02:59+00:00urn:sha1:c9c35b100c3fcae661501d2bf89eedc7fceb2e1c
This shrinks the base OS load down a bit as well so that stm-flash
fits comfortably in the first 8kB of memory.
Signed-off-by: Keith Packard <keithp@keithp.com>