This commit removes the previous tdesc_cortex_a, tdesc_cortex_m, and
tdesc_cortex_mf XML string literals used for target description to GDB,
now instead programmatically generating them at runtime to significantly
deduplicate the characters that get embedded into the binary.
Output of ld's --print-memory-usage during final link before:
Memory region Used Size Region Size %age Used
rom: 116388 B 128 KB 88.80%
ram: 3348 B 20 KB 16.35%
Output of ld's --print-memory-usage during final link now:
Memory region Used Size Region Size %age Used
rom: 113032 B 128 KB 86.24%
ram: 3376 B 20 KB 16.48%
So all in all this saves 3356 bytes of flash.
Note: the exact size saved when compiled on your machine may differ, as
the size of the build seems at least partially non-deterministic.
We've gotten slightly different sizes (within 15 bytes of each other)
at different times, with the only differences being things like which
files were rebuilt in an incremental rebuild, or the order object files
were given to the linker command line. The numbers given above were the
numbers we got when testing the final builds from scratch, but all the
sizes we got were extremely similar to the sizes listed above.
Firmware BMP with ENABLE_DEBUG=1 will print WARN and INFO as before.
PC-Hosted BMPwill alway print to stderr. Warn is printed unconditional,
INFO, GDB, TARGET, DONGLE and WIRE will print if their appropriate bit in
cl_debuglevel is set via the -v verbose command line argument.
INFO will go to stdout with -t or -l.
This is will make debugging earier if this does happen, rather than
dereferencing the null pointer (or passing it to memcpy, or worse).
blackmagic PR #475
The old code for 'fast' memory accesses using the AHB directly
has problems with data consitency. Until this can be resolved, I'm
removing the affected code.
The new function returns a stop reason which must be translated in gdb server.
In the case of a watchpoint hit, the address is returned by a pointer parameter.
Simplify the extenal interface for set/clear breaki-/watchpoints.
Mikaela Szekely
Rafael Silva
dragonmux
James Turton
Gareth McMullin
Uwe Bonnes
Richard Meadows
Stefan Agner