AnyPS5

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Commit Graph

Author	SHA1	Message	Date
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

Author

SHA1

Message

Date

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