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- Get threads working on NetBSD
- Get threads working on OpenBSD
- Fix Emacs config for Emacs v28
- Improve --strace logging of sigset_t
- Improve --strace logging of struct stat
- Improve memory safety of DescribeThing functions
- Refactor auto stack allocation into LIBC_RUNTIME
- Introduce shell.com example which works on Windows
- Refactor __strace_thing into DescribeThing functions
- Document the CHECK macros and improve them in NDEBUG mode
- Rewrite MAP_STACK so it uses FreeBSD behavior across platforms
- Deprecate and discourage the use of MAP_GROWSDOWN (it's weird)
This commit is contained in:
Justine Tunney 2022-05-12 06:43:59 -07:00
parent dd9ab01d25
commit e7611a8476
101 changed files with 967 additions and 464 deletions
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22
libc/sysv/consts.sh
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@ -221,20 +221,20 @@ syscon compat O_LARGEFILE 0 0 0 0 0 0 #
syscon compat MAP_FILE 0 0 0 0 0 0 # consensus
syscon mmap MAP_SHARED 1 1 1 1 1 1 # forced consensus & faked nt
syscon mmap MAP_PRIVATE 2 2 2 2 2 2 # forced consensus & faked nt
syscon mmap MAP_STACK 6 6 6 6 6 6 # our definition
syscon mmap MAP_TYPE 15 15 15 15 15 15 # mask for type of mapping
syscon mmap MAP_FIXED 0x0000010 0x0000010 0x0000010 0x0000010 0x0000010 0x0000010 # unix consensus; openbsd appears to forbid; faked nt
syscon mmap MAP_FIXED_NOREPLACE 0x8000000 0x8000000 0x8000000 0x8000000 0x8000000 0x8000000 # handled and defined by cosmo runtime; 0x100000 on linux 4.7+
syscon mmap MAP_ANONYMOUS 0x20 0x1000 0x0001000 0x1000 0x1000 0x20 # bsd consensus; faked nt
syscon mmap MAP_GROWSDOWN 0x0100 0 0x0000400 0x4000 0x4000 0x100000 # mandatory for OpenBSD stacks; MAP_STACK on Free/OpenBSD; MEM_TOP_DOWN on NT
syscon mmap MAP_CONCEAL 0 0 0x0020000 0x8000 0x8000 0 # omit from core dumps; MAP_NOCORE on FreeBSD
syscon mmap MAP_NORESERVE 0x4000 0x40 0 0 64 0 # Linux calls it "reserve"; NT calls it "commit"? which is default?
syscon mmap MAP_HUGETLB 0x040000 0 0 0 0 0x80000000 # kNtSecLargePages
syscon mmap MAP_FIXED 0x00000010 0x00000010 0x00000010 0x00000010 0x00000010 0x00000010 # unix consensus; openbsd appears to forbid; faked nt
syscon mmap MAP_FIXED_NOREPLACE 0x08000000 0x08000000 0x08000000 0x08000000 0x08000000 0x08000000 # handled and defined by cosmo runtime; 0x100000 on linux 4.7+
syscon mmap MAP_ANONYMOUS 0x00000020 0x00001000 0x00001000 0x00001000 0x00001000 0x00000020 # bsd consensus; faked nt
syscon mmap MAP_GROWSDOWN 0x00000100 0 0 0 0 0 # use MAP_STACK; abstracted by MAP_STACK; may be passed to __sys_mmap() for low-level Linux fiddling
syscon mmap MAP_CONCEAL 0 0 0x00020000 0x00008000 0x00008000 0 # omit from core dumps; MAP_NOCORE on FreeBSD
syscon mmap MAP_LOCKED 0x00002000 0 0 0 0 0
syscon mmap MAP_NORESERVE 0x00004000 0x00000040 0 0 0x00000040 0 # Linux calls it "reserve"; NT calls it "commit"? which is default?
syscon mmap MAP_POPULATE 0x00008000 0 0 0 0 0 # can avoid madvise(MADV_WILLNEED) on private file mapping
syscon mmap MAP_NONBLOCK 0x00010000 0 0 0 0 0
syscon mmap MAP_HUGETLB 0x00040000 0 0 0 0 0x80000000 # kNtSecLargePages
syscon mmap MAP_HUGE_MASK 63 0 0 0 0 0
syscon mmap MAP_HUGE_SHIFT 26 0 0 0 0 0
syscon mmap MAP_LOCKED 0x2000 0 0 0 0 0
syscon mmap MAP_NONBLOCK 0x10000 0 0 0 0 0
syscon mmap MAP_POPULATE 0x8000 0 0 0 0 0 # can avoid madvise(MADV_WILLNEED) on private file mapping
syscon mmap MAP_STACK 0x0100 0 0x0000400 0x4000 0x2000 0x100000 # use MAP_GROWSDOWN
syscon compat MAP_NOCORE 0 0 0x0020000 0x8000 0x8000 0 # use MAP_CONCEAL
syscon compat MAP_ANON 0x20 0x1000 0x0001000 0x1000 0x1000 0x20 # bsd consensus; faked nt
syscon compat MAP_EXECUTABLE 0x1000 0 0 0 0 0 # ignored