src/libexec/rtld-elf/rtld-libc, branch releng/14.4

libc/gen: split user-visible opendir()-like functions into separate source files

2025-03-04T04:19:08Z

(cherry picked from commit d40daefca64750c1076822bdbd3c409a9519f513)

rtld: remove pointless "extern"

2024-02-29T00:24:06Z

(cherry picked from commit 180df764c4ee570850deb4a910a11780ec3316df)

Remove $FreeBSD$: one-line sh pattern

2023-08-16T17:55:03Z

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Remove $FreeBSD$: two-line .h pattern

2023-08-16T17:54:16Z

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

libexec/rtld-elf/rtld-libc/Makefile.inc: do not use machdep string functions

2023-07-16T15:41:55Z

With ifunc based SIMD dispatch, we cannot use the amd64 assembly implementations of string functions. Modify rtld to instead use the generic functions. To avoid an architecture-specific special case, this change is applied to all architectures. This change is a prerequisite to and formerly part of D40693. Sponsored by: FreeBSD Foundation Approved by: kib See also: D40693 Differential Revision: https://reviews.freebsd.org/D41050

Have rtld query the page size from the kernel

2022-04-07T14:37:37Z

To allow for a dynamic page size on arm64 have the runtime linker query the kernel for the currentl page size. Reviewed by: kib Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34765

TLS: Use for libc and rtld.

2021-12-09T21:23:05Z

- Include in MD rtld_machdep.h headers. - Remove local definitions of TLS_* constants from rtld_machdep.h headers and libc using the values from instead. - Use _tcb_set() instead of inlined versions in MD allocate_initial_tls() routines in rtld. The one exception is amd64 whose _tcb_set() invokes the amd64_set_fsbase ifunc. rtld cannot use ifuncs, so amd64 inlines the logic to optionally write to fsbase directly. - Use _tcb_set() instead of _set_tp() in libc. - Use '&_tcb_get()->tcb_dtv' instead of _get_tp() in both rtld and libc. This permits removing _get_tp.c from rtld. - Use TLS_TCB_SIZE and TLS_TCB_ALIGN with allocate_tls() in MD allocate_initial_tls() routines in rtld. Reviewed by: kib, jrtc27 (earlier version) Differential Revision: https://reviews.freebsd.org/D33353

rtld: provide private getenv(3)

2021-08-17T12:05:47Z

Reviewed by: arichardson, markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D31545

rtld: avoid recursing on rtld_bind_lock for write

2021-04-09T20:46:24Z

This fixes a regression in d36d6816151705907393889, where the call to __tls_get_address() was performed under rtld_bind_lock write-locked. Instead use tls_get_addr_slow() directly, with locked = true. Reported by: jkim, many others Tested by: jkim, bdragon (powerpc), mhorne (riscv) Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D29623

libc: Use musl's optimized strchr and strchrnul

2021-03-02T02:09:59Z

Parentheses added to HASZERO macro to avoid a GCC warning, and formatted with clang-format as we have adopted these and don't consider them 'contrib' code. Obtained from: musl (snapshot at commit 4d0a82170a25) Reviewed by: kib (libc integration), mjg (both earlier) MFC after: 1 month Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D17630