Instead of every "simple" target having their own duplicate file with
all the section mappings, just provide a single, simple,
"cortex-m-generic.ld" that works with our startup code and any simple
rom/ram system. This also drops the pointless copying of files all over
the place. Using -L flags properly is sufficient, and the standard file
is now in the root of the library already.
Somewhat replaces some earlier work done by hg/lg, but much more
complete, so we kept it as is, because it's bringing in even more parts
after this.
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Renamed every instance of variable CFLAGS in target specific Makefiles
to TGT_CFLAGS to free up CFLAGS for user defined compiler flags.
Added information in README.md about existence and usage of CFLAGS
environment variable in build process.
-ggdb3 make slightly bigger .elf files, but allows gdb to understand
macros, which libopenocm3 uses somewhat extensively. Make this the
default, and pull it up to the common base makefile, so it can be easily
substituted.
On linux, the output of CP rule was try to write to / which is - of course, forbidden for write.
This solution adds to each part of lib correct pointer to the root of lib where the libs should be written.
Bug found by Kuldeep Singh Dhaka.
We currently default to "-mfloat-abi=hard -mfpu=fpv4-sp-d16" for M4F cores, and
and variations of "-mfloat-abi=soft" for the others. Keep the M4F default, and
move others to no FP flags for consistency, but allow overriding these flags
via the FP_FLAGS environment variable.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
This also report bug fixes about data alignment and bss storage to EFM32 &
LM3S targets.
Note: removed chrysn copyright statement as the file is a verbatim copy of
previous files.
this follows the license change of the master branches in [43561de]. all
files whose copyright is not my own are originally based on files whose
license has been changed in master.
the expression used for the conversion was:
sed -i -e 's/This program is free software: you can redistribute/This library is free software: you can redistribute/g' -e 's/under the terms of the GNU General Public License as published/under the terms of the GNU Lesser General Public License as published/' -e 's/This program is distributed in the hope that/This library is distributed in the hope that/g' -e 's/You should have received a copy of the GNU General/You should have received a copy of the GNU Lesser General/' -e 's/along with this program. If not/along with this library. If not/' -e 's/GNU General Public License for more details/GNU Lesser General Public License for more details/' */**/efm32/**/*(.)
[43561de] 43561de329
* define weak symbol for ${irq_name}_isr
* put them in the rom vector table
* declare reset_vector weak in case someone wants to insert code there
* remove null_handler (null handlers should be only requested
explicitly, and finding out why the chip gets stuck is easier than
determining whether or not a no-op interrupt handler was executed)
includes minor refactoring in example code and modification of how the
generic and the tinygecko specific vector.h go together (bringing it in
line with stm32/f1's memorymap.h)
Karl Palsson