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Based on patches provided by Hanspeter Portner:
http://forums.leaflabs.com/topic.php?id=1717#post-11812
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Reorder the .data and .rodata sections in common.inc. This seems
necessary to get the linker to place the data ROM disk and the pointer
to it in the right places.
Switch from long long to int in start_c.c. I have no idea why this
helps, but it does. F1 will crash if you don't do this. It will
probably slow things down unnecessarily on F2, but I don't care.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Convert wirish/start.S and wirish/start_c.c to libmaple coding
conventions.
Whitespace and brace insertion changes only.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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We're no longer even marginally compatible with CS3, so it's
inappropriate to use that prefix in our names.
Rename:
__cs3_stm32_vector_table -> __stm32_vector_table.
__cs3_stack -> __msp_init
__cs3_reset -> __exc_reset
__cs3_start_c -> start_c
Also add an MIT license header and assert LeafLabs copyright over
wirish/start.S and wirish/start_c.c. These files are modified from
the original CodeSourcery versions, which were distributed under a
license that permits modifications to be distributed under a different
copyright and licensing terms than the originals.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Remove libcs3-related bits from support/ld. Break them out into
libmaple proper and Wirish as appropriate: vector table definition and
ISR declarations go into libmaple proper, and startup code goes into
Wirish. Vector table symbols are included into common.inc from an
STM32 family-specific directory under support/ld/stm32.
This is a combination of 5 commits. Individual commit messages follow:
libcs3_stm32_src: Don't depend on cs3.h.
So we can use the existing toolchain.
Move ISR decls/vector table into libmaple proper.
This allows us to configure the vector table on a per-family basis.
- Move
support/ld/libcs3_stm32_src/stm32_isrs.S
stm32_vector_table.S
to
libmaple/stm32f1/isrs_performance.S
vector_table_performance.S,
respectively.
The directory libmaple/stm32f1/ is intended to hold all
STM32F1-specific code within libmaple. Obviously, there's a lot of
work to do before this becomes true.
- support/ld/libcs3_stm32_src/Makefile: Don't try to compile
stm32_isrs.S and stm32_vector_table.S anymore.
- Add libmaple/stm32f1/rules.mk to include these new files in the
standard libmaple build.
- support/make/target-config.mk: Add LIBMAPLE_MODULE_FAMILY, which
selects a directory to use as a family-specific libmaple
submodule.
- Makefile: Add LIBMAPLE_MODULE_FAMILY to LIBMAPLE_MODULES.
Remove support/ld/libcs3_stm32_src and derived object files.
From support/ld/libcs3_stm32_src, move start.S and start_c.c into
Wirish. Modify wirish/rules.mk accordingly.
Delete support/ld/libcs3_stm32_*_density.a. These are no longer
necessary, as the relevant objects are included in the standard Wirish
build. Remove the GROUP statements from the board linker scripts
accordingly.
Remove SEARCH_DIR(.) from common.inc; it's no longer necessary. Also
fix up some comments that are now out of date.
wirish/start_c.c: Don't use CS3-style memory initialization.
Switch memory initialization to a simpler style of initializing .data
if necessary, then zeroing .bss. Initializing .data is only necessary
during Flash builds, since during RAM builds, LOADADDR(.data) ==
ADDR(.data).
This makes libmaple completely incompatible with the CS3 startup
sequence. Subsequent commits will clean up the namespace to reflect
that fact.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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