core: chibios: bootloader: use integer pointers as volatile #13450
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This prevents gcc from incorrectly trying to validate array bounds.
```
tmk_core/common/chibios/bootloader.c: error: '__builtin_memcpy' offset [0, 21] is out of the bounds [0, 0] [-Werror=array-bounds]
107 | __builtin_memcpy((void *) VBAT, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c16
Fixes qmk#12925
tzarc
reviewed
Jul 4, 2021
tzarc
approved these changes
Jul 4, 2021
fauxpark
approved these changes
Jul 5, 2021
|
Just thought you may want to check this works, as OP doesn't have a Kinetis device :) |
|
Ah, read up a bit on #12925. Without that context I was wildly confused... I haven't had any such issues compiling on my Debian system, though. Maybe we should ping @TheEdgeOfRage to check if it solves their issue? :) |
|
Whoops, didn't notice the linked issue. Sorry for the noise. |
|
No problem, happy to help anyway. 😛 |
|
I can confirm that the fix doesn't seem to introduce any issues on my Debian system at least. Compiling (still) works fine, and my |
|
For completeness sake, I can confirm that this fixed it for me. Thanks 👍 |
nhongooi
pushed a commit
to nhongooi/qmk_firmware
that referenced
this pull request
Dec 5, 2021
This prevents gcc from incorrectly trying to validate array bounds.
```
tmk_core/common/chibios/bootloader.c: error: '__builtin_memcpy' offset [0, 21] is out of the bounds [0, 0] [-Werror=array-bounds]
107 | __builtin_memcpy((void *) VBAT, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c16
Fixes qmk#12925
BorisTestov
pushed a commit
to BorisTestov/qmk_firmware
that referenced
this pull request
May 23, 2024
This prevents gcc from incorrectly trying to validate array bounds.
```
tmk_core/common/chibios/bootloader.c: error: '__builtin_memcpy' offset [0, 21] is out of the bounds [0, 0] [-Werror=array-bounds]
107 | __builtin_memcpy((void *) VBAT, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c16
Fixes qmk#12925
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Description
core: chibios: bootloader: use integer pointers as volatile
This prevents gcc from incorrectly trying to validate array bounds.
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99578#c16
Types of Changes
Issues Fixed or Closed by This PR
Checklist
Note: This is only compile tested, as I don't have such a device.