01 message "Implement a memory allocator in C11 in this directory. Files: alloc.c, alloc.h (my_malloc,… user prompt raw
02 message I’ll create the allocator, tests, and Makefile, then build and iterate on any failures. assistant response raw
03 plan Plans 5 todos 5 todos raw
04 result Tool call completed [ { "content": "Inspect directory and existing files", "status": "in_progress", "pr… · 5s raw
05 read Reads …/w3-opencode …/w3-opencode raw
06 result Tool call completed <path>…/path> <type>directory</type> <entries> .git/ (1 entries) </entries> raw
07 search Searches …/w3-opencode …/w3-opencode raw
08 result Tool call completed No files found · 4s raw
09 message The directory is empty aside from `.git`, so I’m adding the requested C files and tests fro… assistant response raw
10 plan Plans 4 todos 4 todos raw
11 result Tool call completed [ { "content": "Inspect directory and existing files", "status": "completed", "prio… · 4s raw
12 tool Uses Success. Updated the following files: A alloc.h A alloc.c A tests.c A Makefile Success. Updated the following files: A alloc.h A alloc.c A tests.c A Makefile raw
13 result Tool call completed Success. Updated the following files: A alloc.h A alloc.c A tests.c A Makefile · 1m 19s raw
14 message The allocator and tests are in place. I’m building now with the requested sanitizer flags a… assistant response raw
15 plan Plans 3 todos 3 todos raw
16 result Tool call completed [ { "content": "Inspect directory and existing files", "status": "completed", "prio… · 4s raw
17 plan Plans 1 todos 1 todos raw
18 result Tool call completed [ { "content": "Inspect directory and existing files", "status": "completed", "prio… · 3s raw
19 bash Runs make test make test raw
20 result Tool call completed clang -std=c11 -Wall -Wextra -fsanitize=address,undefined -g -c alloc.c clang -std=… · 3s raw
21 think **Inspecting code near line 95** reasoning · 102s raw
22 message The first run found a heap consistency failure during the stress test. I’m narrowing that d… assistant response raw
23 read Reads …/tests.c tests.c raw
24 result Tool call completed <path>…/path> <type>file</type> <content> 80: if (new_ptr != NULL) { 81: s->ptr = n… · 4s raw
25 think **Analyzing memory alignment and overhead issues** reasoning · 106s raw
26 think **Adjusting footer size for alignment** reasoning · 106s raw
27 message The failure is caused by block layout: an 8-byte footer canary made the next block start 8… assistant response raw
28 tool Uses Success. Updated the following files: M alloc.c Success. Updated the following files: M alloc.c raw
29 result Tool call completed Success. Updated the following files: M alloc.c · 12s raw
30 bash Runs make test make test raw
31 result Tool call completed clang -std=c11 -Wall -Wextra -fsanitize=address,undefined -g -c alloc.c clang -fsan… · 3s raw
32 think **Inspecting code changes with git diff** reasoning · 122s raw
33 bash Runs git status --short git status --short raw
34 result Tool call completed ?? Makefile ?? alloc.c ?? alloc.h ?? alloc.o ?? tests ?? tests.c ?? tests.o raw
35 bash Runs git diff -- alloc.c alloc.h tests.c Makefile git diff -- alloc.c alloc.h tests.c Makefile raw
36 result Tool call completed (no output) · 7s raw
37 think **Planning build artifacts cleanup** reasoning · 129s raw
38 message The test suite passes under ASan/UBSan. I’m cleaning generated build artifacts so only sour… assistant response raw
39 bash Runs make clean make clean raw
40 result Tool call completed rm -f tests *.o · 5s raw
41 bash Runs git status --short git status --short raw
42 result Tool call completed ?? Makefile ?? alloc.c ?? alloc.h ?? tests.c · 3s raw
43 plan Plans 0 todos 0 todos raw
44 result Tool call completed [ { "content": "Inspect directory and existing files", "status": "completed", "prio… · 4s raw
45 message Implemented the C11 allocator and tests. Files added: - `alloc.h` - `alloc.c` - `tests.c` -… assistant response raw
Discussion
No comments yet. Start the discussion. Recorded by @patrick-toulme.