sam0_common: use size_t len for I2C transfers (fixes #19008) [backport 2022.10] #19019
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…T-OS#19008) (cherry picked from commit ee76e21)
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Murdock results✔️ PASSED 1b6072d sam0_common: use size_t len for I2C transfers, as declared (fixes #19008)
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19019: sam0_common: use size_t len for I2C transfers (fixes #19008) [backport 2022.10] r=maribu a=maribu # Backport of #19009 See description in #19008 . I modified `_read` and `_write` in `cpu/sam0_common/periph/i2c.c` in order to use the declared `len` parameter. 19020: makefiles/tools/gdb.inc.mk: prefer $(target)-gdb over gdb-multiarch [backport 2022.10] r=maribu a=maribu # Backport of #18784 ### Contribution description In an ideal world everyone would just install `gdb-multiarch` and be happy. However, some MCUs need magic GDB versions sprinkled with unicorn-stardust-Espressif-patches... Since there is little reason to have `$(target)-gdb` installed in addition to `gdb-multiarch` if `gdb-multiarch` would work fine, let's assume the user wants to use `$(target)-gdb` when present over `gdb-multiarch`. ### Testing procedure ``` USEMODULE=esp_jtag make BOARD=esp32-ethernet-kit-v1_2 PROGRAMMER=openocd OPENOCD=openocd-esp32 debug -C examples/default ``` In `master`: ``` /home/maribu/Repos/software/RIOT/dist/tools/openocd/openocd.sh debug /home/maribu/Repos/software/RIOT/examples/default/bin/esp32-ethernet-kit-v1_2/default.elf ### Starting Debugging ### Open On-Chip Debugger v0.11.0-snapshot (2022-10-21-10:40) Licensed under GNU GPL v2 For bug reports, read http://openocd.org/doc/doxygen/bugs.html Reading symbols from /home/maribu/Repos/software/RIOT/examples/default/bin/esp32-ethernet-kit-v1_2/default.elf... Remote debugging using :3333 Remote 'g' packet reply is too long (expected 180 bytes, got 420 bytes): 00040040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000004004096fec51c2500060000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ``` With this PR: ``` /home/maribu/Repos/software/RIOT/dist/tools/openocd/openocd.sh debug /home/maribu/Repos/software/RIOT/examples/default/bin/esp32-ethernet-kit-v1_2/default.elf ### Starting Debugging ### DBG="xtensa-esp32-elf-gdb", GDB="xtensa-esp32-elf-gdb", DBG_FLAGS="-q -ex "tar ext :3333" " Open On-Chip Debugger v0.11.0-snapshot (2022-10-21-10:40) Licensed under GNU GPL v2 For bug reports, read http://openocd.org/doc/doxygen/bugs.html Reading symbols from /home/maribu/Repos/software/RIOT/examples/default/bin/esp32-ethernet-kit-v1_2/default.elf... Remote debugging using :3333 0x40000400 in ?? () (gdb) start The program being debugged has been started already. Start it from the beginning? (y or n) y Temporary breakpoint 1 at 0x400d0024: file /data/riotbuild/riotbase/examples/default/main.c, line 37. Note: automatically using hardware breakpoints for read-only addresses. Starting program: /home/maribu/Repos/software/RIOT/examples/default/bin/esp32-ethernet-kit-v1_2/default.elf [esp32.cpu0] Target halted, PC=0x400D0024, debug_reason=00000001 Set GDB target to 'esp32.cpu0' Temporary breakpoint 1, main () at /data/riotbuild/riotbase/examples/default/main.c:37 37 { (gdb) show arch The target architecture is set to "auto" (currently "xtensa"). (gdb) quit A debugging session is active. Inferior 1 [Remote target] will be detached. Quit anyway? (y or n) y Detaching from program: /home/maribu/Repos/software/RIOT/examples/default/bin/esp32-ethernet-kit-v1_2/default.elf, Remote target [Inferior 1 (Remote target) detached] ``` ### Issues/PRs references #18359 (comment) 19040: CI: add bors.toml from master r=kaspar030 a=kaspar030 19041: CI: update murdock yml [backport 2022.10] r=kaspar030 a=kaspar030 # Backport of #19022 Co-authored-by: Antonio Galea <antonio.galea@gmail.com> Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de> Co-authored-by: Kaspar Schleiser <kaspar@schleiser.de>
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Backport of #19009
See description in #19008 . I modified
_readand_writeincpu/sam0_common/periph/i2c.cin order to use the declaredlenparameter.