4 Commits

Include renames

Author	SHA1	Message	Date
plexerPK	b96661d61c	fix(libc): synchronize macOS arena protection with write watch	2026-10-28 17:26:46 +01:00
Emanuele	f67e221738	test(libc): check that the macOS guest arena keeps free space beside host regions ... The four guest_arena tests still pass with the mach_vm_region walk disabled, because TryReserve marks every 1 GiB chunk it cannot reserve as occupied. guest_arena_gap reads the host map before the arena reserves its range and requires a fixed guest mapping in free space that shares a chunk with a host region to be accepted. The debt entry also records that on macOS 27.0.1 (M4 Pro) the unmappable range starts at 0xF_C000_0000.	2026-10-18 20:33:33 +02:00
yripper	913adca3aa	docs(libc): record the macOS guest arena holes as debt ... Move the explanatory comments into docs/dev/debt/libc.md, as the conventions require.	2026-10-14 19:47:07 -03:00
yripper	3e98703fc8	feat(libc): reserve the guest arena on macOS ... macOS has no /proc/self/maps or MAP_FIXED_NOREPLACE, so the arena never came up and every guest allocation threw. Enumerate host regions with mach_vm_region and reserve free chunks with a fixed mach_vm_map, which fails instead of replacing. This skips dyld, the Rosetta runtime, and ranges the kernel never lets a process map (0x10_0000_0000-0x70_0000_0000). The POSIX commit/protection paths now build on macOS unchanged. Adds standalone guest_arena tests (x86_64 under Rosetta and arm64).	2026-10-14 19:47:07 -03:00