Upgrading libc 0.1 to 0.2

Breaking0.1.12 → 0.2.191Breaking47Platform2Deprecated23New809Changed108Fixed244Other248

Full comparison Back to libc

BreakingUpgrade verdict

46 breaking changes and 2 platform requirement changes.

In plain terms

Removes many items from iOS, tvOS, watchOS, and visionOS that are only available on MacOS.
Removes the unsupported exec* and fork calls from tvOS and watchOS.
Removes unsound af_alg_iv trait implementations on Android and Linux that allowed out-of-bounds reads via safe functions.
Removes most items that have been deprecated since before 0.2.100.

Must act Top 5 of 71 that need code or config changes

Requires Rust 1.65 from 0.2.184 (none stated before).

Adds rustc-std-workspace-core ^1.0.1.

Installs 1 package in all (was 0).

What you must change

Breaking46

Removes many items from iOS, tvOS, watchOS, and visionOS that are only available on MacOS.

0.2.190GitHub ReleaseSummarizedView source

Removes the unsupported exec* and fork calls from tvOS and watchOS.

exec*fork

0.2.190GitHub ReleaseSummarizedView source

Removes unsound af_alg_iv trait implementations on Android and Linux that allowed out-of-bounds reads via safe functions.

af_alg_iv

0.2.190GitHub ReleaseSummarizedView source

Removes most items that have been deprecated since before 0.2.100.

0.2.190GitHub ReleaseSummarizedView source

Removes INHERIT_ZERO on Dragonfly because it does not exist upstream.

INHERIT_ZERO

0.2.190GitHub ReleaseSummarizedView source

Removes GNU-gated REG_* definitions on Musl riscv64.

REG_*

0.2.190GitHub ReleaseSummarizedView source

Removes the non-existent REG_NARGS on Musl riscv64.

REG_NARGS

0.2.190GitHub ReleaseSummarizedView source

Dragonfly: Removes FreeBSD-only Elf32_Lword, ip_mreq_source, and IP_ constants.

Elf32_Lwordip_mreq_sourceIP_

0.2.187GitHub ReleaseSummarizedView source

Dragonfly: Removes private VM type bindings.

0.2.187GitHub ReleaseSummarizedView source

Linux: Removes KERN_REALROOTDEV and VM_LAPTOP_MODE.

KERN_REALROOTDEVVM_LAPTOP_MODE

0.2.187GitHub ReleaseSummarizedView source

VxWorks: Removes non-user-facing (kernel) API.

0.2.187GitHub ReleaseSummarizedView source

Remove RUST_LIBC_UNSTABLE_LINUX_TIME_BITS64.

RUST_LIBC_UNSTABLE_LINUX_TIME_BITS64

0.2.179GitHub ReleaseOriginalView source

WASI: Remove nonexistent clocks.

0.2.179GitHub ReleaseOriginalView source

MIPS Musl: Remove rogue definition of SIGSTKFLT.

SIGSTKFLT

0.2.178GitHub ReleaseOriginalView source

NetBSD: Remove BPF constants.

0.2.178GitHub ReleaseOriginalView source

NetBSD: Remove *_MAXID constants and AT_SUN_LDPGSIZE.

*_MAXIDAT_SUN_LDPGSIZE

0.2.178GitHub ReleaseOriginalView source

NetBSD: Remove IFF_NOTRAILERS.

IFF_NOTRAILERS

0.2.178GitHub ReleaseOriginalView source

NetBSD: Remove vm_size_t.

vm_size_t

0.2.178GitHub ReleaseOriginalView source

FreeBSD: Remove JAIL_{GET,SET}_MASK, _MC_FLAG_MASK.

JAIL_{GET,SET}_MASK_MC_FLAG_MASK

0.2.176GitHub ReleaseOriginalView source

AIX: Remove duplicate constant definitions FIND and ENTER.

FINDENTER

0.2.175GitHub ReleaseOriginalView source

s390x musl: Remove O_FSYNC.

O_FSYNC

0.2.175GitHub ReleaseOriginalView source

s390x musl: Remove RTLD_DEEPBIND.

RTLD_DEEPBIND

0.2.175GitHub ReleaseOriginalView source

Musl: Remove O_FSYNC on RISC-V-32 (use O_SYNC instead).

O_FSYNCO_SYNC

0.2.172GitHub ReleaseOriginalView source

Musl: Remove RTLD_DEEPBIND on RISC-V-32.

RTLD_DEEPBIND

0.2.172GitHub ReleaseOriginalView source

NuttX: Remove pthread_set_name_np.

pthread_set_name_np

0.2.171GitHub ReleaseOriginalView source

Remove one unused import after the edition 2021 bump.

0.2.167GitHub ReleaseOriginalView source

Apple: remove rmx_state.

rmx_state

0.2.156GitHub ReleaseOriginalView source

openbsd: syscall has been removed in upcoming OpenBSD 7.5.

0.2.152GitHub ReleaseOriginalView source

Remove asmjs-unknown-emscripten target.

0.2.151GitHub ReleaseOriginalView source

Drops support for the armv7-apple-ios target.

armv7-apple-ios

0.2.149GitHub ReleaseSummarizedView source

Removes the AIX specific definition of sigval.

sigval

0.2.142GitHub ReleaseSummarizedView source

Removes the obsolete private a.out define on illumos.

0.2.136GitHub ReleaseSummarizedView source

Drops support for the Rumprun target.

0.2.127GitHub ReleaseSummarizedView source

Removes the deprecated winapi part on win32.

winapi

0.2.107GitHub ReleaseSummarizedView source

Changes the type of BPF_ALIGNMENT to size_t on AIX to match upstream and other platforms.

BPF_ALIGNMENT

0.2.190GitHub ReleaseSummarizedView source

Disables mach.h API on Apple mobile OSs.

mach.h

0.2.190GitHub ReleaseSummarizedView source

Replaces the RUST_LIBC_UNSTABLE_* environment variables with --cfg configuration options.

RUST_LIBC_UNSTABLE_*libc_unstable_musl_v1_2_3libc_unstable_gnu_time_bits

0.2.187GitHub ReleaseSummarizedView source

Corrects NetBSD _lwp_park ts parameter from *const timespec to *mut timespec.

_lwp_parktimespec

0.2.187GitHub ReleaseSummarizedView source

Changes overflowing Linux GNU PTRACE_*ET_SYSCALL_USER_DISPATCH_CONFIG constants from u8 to c_uint.

PTRACE_*ET_SYSCALL_USER_DISPATCH_CONFIGu8c_uint

0.2.187GitHub ReleaseSummarizedView source

NetBSD: Make statvfs.f_spare non-public.

statvfs.f_spare

0.2.178GitHub ReleaseOriginalView source

NetBSD: Replace REG_ENOSYS with REG_ILLSEQ.

0.2.178GitHub ReleaseOriginalView source

Fixes the MAP_HASSEMAPHORE name on Hurd, renaming the exposed constant.

MAP_HASSEMAPHORE

0.2.165GitHub ReleaseSummarizedView source

Fixes mismatched types of SA_* constants on ulibc Mips.

SA_*

0.2.165GitHub ReleaseSummarizedView source

Changes f_* constants to uint from ulong on linux/musl/s390x.

0.2.145GitHub ReleaseSummarizedView source

Changes MSG* constant types for musl and emscripten, following up on #2963.

MSG_OOBMSG_PEEKMSG_DONTROUTEMSG_EORMSG_WAITALLMSG_NOSIGNALMSG_TRUNCMSG_CTRUNC

0.2.137GitHub ReleaseSummarizedView source

Moves termios2 struct and ioctl constants to linux::arch::* modules.

termios2linux::arch

0.2.107GitHub ReleaseSummarizedView source

Platform2

Adds support for Emscripten versions v4.0.12 through v6.0.11.

0.2.191GitHub ReleaseSummarizedView source

MSRV: document the MSRV of the stable channel to be 1.63.

0.2.164GitHub ReleaseOriginalView source

Deprecations to plan for

Deprecated23

Adds back NOTE_PCTRLMASK on FreeBSD with a deprecation warning.

NOTE_PCTRLMASK

0.2.191GitHub ReleaseSummarizedView source

Deprecates AIX _kernel_simple_lock.

_kernel_simple_lock

0.2.190GitHub ReleaseSummarizedView source

Deprecates integer *_MIN/*_MAX constants in favor of associated constants like c_int::MAX.

*_MIN*_MAXc_int::MAX

0.2.190GitHub ReleaseSummarizedView source

Deprecates Fuchsia types that do not exist upstream.

0.2.190GitHub ReleaseSummarizedView source

Deprecates Hurd fallocate64, which does not exist on the platform.

fallocate64

0.2.190GitHub ReleaseSummarizedView source

Deprecates redundant Hurd glob64 types and routines.

glob64

0.2.190GitHub ReleaseSummarizedView source

Deprecates L4Re LFS bindings.

0.2.190GitHub ReleaseSummarizedView source

Deprecates OpenBSD syscall, mincore, and KERN_NSELCOLL, all removed upstream.

syscallmincoreKERN_NSELCOLL

0.2.190GitHub ReleaseSummarizedView source

Deprecates the POSIX-obsoleted tmpnam and tempnam on Unix.

tmpnamtempnam

0.2.190GitHub ReleaseSummarizedView source

Deprecates CLONE_INTO_CGROUP and CLONE_CLEAR_SIGHAND because they overflow their types and will change to a larger size later.

CLONE_INTO_CGROUPCLONE_CLEAR_SIGHAND

0.2.189GitHub ReleaseSummarizedView source

Deprecates Dragonfly compatibility aliases CPUCTL_RSMSR and UTX_DB_LASTLOG.

CPUCTL_RSMSRUTX_DB_LASTLOG

0.2.187GitHub ReleaseSummarizedView source

Apple: Deprecate TIOCREMOTE.

TIOCREMOTE

0.2.178GitHub ReleaseOriginalView source

Apple: Correct the deprecated attribute for iconv (a97a0b53).

deprecatediconv

0.2.176GitHub ReleaseOriginalView source

FreeBSD: Deprecate TIOCMGDTRWAIT and TIOCMSDTRWAIT.

TIOCMGDTRWAITTIOCMSDTRWAIT

0.2.176GitHub ReleaseOriginalView source

Linux: MAP_32BIT is only defined on x86 on non-x86 architectures.

MAP_32BIT

0.2.175GitHub ReleaseOriginalView source

FreeBSD: Deprecate TCP_PCAP_OUT and TCP_PCAP_IN.

TCP_PCAP_OUTTCP_PCAP_IN

0.2.172GitHub ReleaseOriginalView source

Linux: Deprecate obsolete packet filter interfaces.

0.2.171GitHub ReleaseOriginalView source

Linux: deprecate kernel modules syscalls.

0.2.170GitHub ReleaseOriginalView source

FreeBSD: Deprecate the CAP_UNUSED* and CAP_ALL* constants.

0.2.168GitHub ReleaseOriginalView source

Deprecates iconv_open on Apple targets.

iconv_open

0.2.165GitHub ReleaseSummarizedView source

Deprecates mach_task_self on Apple targets.

mach_task_self

0.2.165GitHub ReleaseSummarizedView source

Updates mach deprecation notices for things that were removed in main.

mach

0.2.165GitHub ReleaseSummarizedView source

Deprecates XU_NGROUPS on DragonFly.

XU_NGROUPS

0.2.105GitHub ReleaseSummarizedView source