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7856369dc26697a6a7a462f69aa1f165d2ae5127
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4 Commits

Author SHA1 Message Date
Simon Glass
7856369dc2 cmd: malloc: Add a command to show the malloc log 
Add a command interface for the malloc-traffic log:
- malloc log start: Start recording allocations
- malloc log stop: Stop recording
- malloc log: Dump the recorded entries

Example output:

  => malloc log
  Malloc log: 29 entries (max 524288, total 29)
   Seq  Type                   Ptr      Size  Caller
  ----  --------  ----------------  --------  ------
     0  free              16a016e0         0  free_pipe_list:2001
                <-parse_stream_outer:3208 <-parse_file_outer:3300
     1  alloc             16a01b90        20  hush_file_init:3277
                <-parse_file_outer:3295 <-run_pipe_real:1986

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
 2026-01-03 12:41:32 -07:00
Simon Glass
ee8e9bf104 malloc: Add malloc dump command to walk the heap 
Add a new 'malloc dump' command that walks the dlmalloc heap from start
to end, printing each chunk's address, size (in hex), and status
(used/free/top). This is useful for debugging memory allocation issues.

When CONFIG_MCHECK_HEAP_PROTECTION is enabled, the caller string is
also shown if available.

Example output:
    Heap dump: 18a1d000 - 1ea1f000
         Address        Size  Status
    ----------------------------------
        18a1d000          10  (chunk header)
        18a1d010          90  used
        18adfc30          60  <free>
        18adff90     5f3f030  top
        1ea1f000              end
    ----------------------------------
    Used: c2ef0 bytes in 931 chunks
    Free: 5f3f0c0 bytes in 2 chunks + top

Expand the console-record size to handle this command.

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
 2025-12-10 05:53:03 -07:00
Simon Glass
d8b19014d7 malloc: Add call counters for malloc, free, realloc 
Add counters to track the number of calls to malloc(), free(), and
realloc(). These are displayed by the 'malloc info' command and
accessible via malloc_get_info().

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
 2025-12-10 05:53:03 -07:00
Simon Glass
cfbee94582 malloc: Add 'malloc' command with 'info' subcommand 
Add a command to display malloc heap statistics, showing total heap
size and memory currently in use.

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
 2025-12-10 05:53:03 -07:00