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gdb: fix compilation failures

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Compilation fails with an "index outside of array bounds" error:

In function 'find_memory_region',
    inlined from 'gdb_mem_can_read' at \
zephyr/subsys/debug/gdbstub/gdbstub.c:93:7:
zephyr/subsys/debug/gdbstub/gdbstub.c:65:21: warning: array subscript \
idx is outside array bounds of 'const struct gdb_mem_region[0]' \
[-Warray-bounds]
   65 |                 r = &gdb_mem_region_array[idx];
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~
zephyr/subsys/debug/gdbstub/gdbstub.c: In function 'gdb_mem_can_read':
zephyr/subsys/debug/gdbstub/gdbstub.c:42:36: note: while referencing \
'gdb_mem_region_array'
   42 | __weak const struct gdb_mem_region gdb_mem_region_array[0];
      |

Use a single element array to fix the problem.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
This commit is contained in:
Guennadi Liakhovetski 2025-07-11 10:31:15 +02:00 committed by Chris Friedt
parent 53375e95ba
commit 226747a1c8
1 changed files with 3 additions and 3 deletions
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6
subsys/debug/gdbstub/gdbstub.c
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@ -38,12 +38,12 @@ LOG_MODULE_REGISTER(gdbstub);
static bool not_first_start;
/* Empty memory region array */
__weak const struct gdb_mem_region gdb_mem_region_array[0];
/* Number of memory regions */
__weak const size_t gdb_mem_num_regions;
/* Fall-back memory region array */
__weak const struct gdb_mem_region gdb_mem_region_array[1];
/**
* Given a starting address and length of a memory block, find a memory
* region descriptor from the memory region array where the memory block