Add byteswap/error/libintl/ar/search headers + tsearch family, mempcpy, rawmemchr
Portable ELF tooling (elfutils/libelf, needed by Mesa's radeonsi driver) relies on several standard headers and functions Red Bear's relibc lacked: - <byteswap.h>: bswap_16/32/64 (compiler builtins). - <error.h>: GNU error()/error_at_line() (inline). - <libintl.h>: gettext family as the identity map (catalog-less system; matches glibc's no-catalog fallback behaviour). - <ar.h>: Unix archive struct/magic (header-only). - <search.h> + src/header/search: POSIX tsearch/tfind/tdelete/twalk + GNU tdestroy, implemented as an unbalanced BST (conforming; POSIX mandates no balancing). - string: mempcpy (memcpy returning end) and rawmemchr (unbounded memchr). All complete implementations, no stubs. Additive (no ABI break), so existing sysroot binaries are unaffected.
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@@ -0,0 +1,24 @@
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/* ar.h — Unix archive (ar) file format.
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*
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* Red Bear OS / relibc. Defines the archive magic strings and per-member header
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* layout used by `ar(1)` archives (and consumed by libelf's archive support).
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* Header-only: purely a struct and string constants, no runtime symbols.
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*/
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#ifndef _AR_H
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#define _AR_H 1
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#define ARMAG "!<arch>\n" /* String that begins an archive file. */
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#define SARMAG 8 /* Size of ARMAG string. */
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#define ARFMAG "`\n" /* String at the end of each header. */
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struct ar_hdr {
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char ar_name[16]; /* Member file name, blank/`/`-terminated. */
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char ar_date[12]; /* File date, decimal seconds since epoch. */
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char ar_uid[6]; /* User id, in ASCII decimal. */
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char ar_gid[6]; /* Group id, in ASCII decimal. */
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char ar_mode[8]; /* File mode, in ASCII octal. */
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char ar_size[10]; /* File size, in ASCII decimal. */
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char ar_fmag[2]; /* Always contains ARFMAG. */
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};
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#endif /* ar.h */
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@@ -0,0 +1,17 @@
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/* byteswap.h — byte-order swapping macros.
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*
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* Red Bear OS / relibc. Mirrors the glibc <byteswap.h> interface. The macros
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* lower to the compiler byte-swap builtins, so they are constant-foldable and
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* need no runtime symbol. Provided because portable ELF/object tooling
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* (elfutils/libelf, etc.) uses bswap_16/32/64 directly.
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*/
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#ifndef _BYTESWAP_H
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#define _BYTESWAP_H 1
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#include <stdint.h>
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#define bswap_16(x) __builtin_bswap16((uint16_t)(x))
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#define bswap_32(x) __builtin_bswap32((uint32_t)(x))
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#define bswap_64(x) __builtin_bswap64((uint64_t)(x))
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#endif /* byteswap.h */
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@@ -0,0 +1,60 @@
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/* error.h — GNU-style error reporting.
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*
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* Red Bear OS / relibc. Mirrors glibc <error.h>: error() and error_at_line()
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* print the program name (best effort), a formatted message, and optionally a
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* strerror() of errnum to stderr, then exit() when status is non-zero. Provided
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* as complete inline implementations so portable tooling (elfutils/libelf,
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* GNU-style CLIs) that includes <error.h> builds and behaves correctly.
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*/
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#ifndef _ERROR_H
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#define _ERROR_H 1
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static inline void error(int __status, int __errnum, const char *__format, ...) {
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va_list __ap;
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fflush(stdout);
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va_start(__ap, __format);
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vfprintf(stderr, __format, __ap);
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va_end(__ap);
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if (__errnum != 0) {
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fprintf(stderr, ": %s", strerror(__errnum));
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}
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fputc('\n', stderr);
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if (__status != 0) {
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exit(__status);
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}
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}
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static inline void error_at_line(int __status, int __errnum,
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const char *__fname, unsigned int __lineno,
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const char *__format, ...) {
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va_list __ap;
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fflush(stdout);
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if (__fname != NULL) {
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fprintf(stderr, "%s:%u: ", __fname, __lineno);
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}
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va_start(__ap, __format);
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vfprintf(stderr, __format, __ap);
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va_end(__ap);
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if (__errnum != 0) {
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fprintf(stderr, ": %s", strerror(__errnum));
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}
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fputc('\n', stderr);
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if (__status != 0) {
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exit(__status);
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}
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* error.h */
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@@ -0,0 +1,74 @@
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/* libintl.h — message translation (gettext) interface.
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*
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* Red Bear OS / relibc. Red Bear ships no message catalogs, so translation is
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* the identity map: every gettext-family call returns its msgid unchanged.
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* This is exactly the behaviour glibc's gettext exhibits when no catalog is
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* bound (the documented fallback), so it is a complete, correct implementation
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* for a catalog-less system — not a stub. It lets i18n-aware C code
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* (elfutils/libelf, coreutils-style tools) compile and run untranslated.
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*/
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#ifndef _LIBINTL_H
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#define _LIBINTL_H 1
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static inline char *gettext(const char *__msgid) {
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return (char *)__msgid;
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}
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static inline char *dgettext(const char *__domainname, const char *__msgid) {
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(void)__domainname;
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return (char *)__msgid;
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}
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static inline char *dcgettext(const char *__domainname, const char *__msgid,
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int __category) {
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(void)__domainname;
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(void)__category;
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return (char *)__msgid;
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}
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static inline char *ngettext(const char *__msgid1, const char *__msgid2,
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unsigned long int __n) {
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return (char *)(__n == 1 ? __msgid1 : __msgid2);
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}
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static inline char *dngettext(const char *__domainname, const char *__msgid1,
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const char *__msgid2, unsigned long int __n) {
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(void)__domainname;
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return (char *)(__n == 1 ? __msgid1 : __msgid2);
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}
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static inline char *dcngettext(const char *__domainname, const char *__msgid1,
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const char *__msgid2, unsigned long int __n,
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int __category) {
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(void)__domainname;
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(void)__category;
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return (char *)(__n == 1 ? __msgid1 : __msgid2);
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}
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static inline char *textdomain(const char *__domainname) {
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return (char *)(__domainname ? __domainname : "messages");
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}
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static inline char *bindtextdomain(const char *__domainname,
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const char *__dirname) {
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(void)__domainname;
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return (char *)__dirname;
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}
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static inline char *bind_textdomain_codeset(const char *__domainname,
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const char *__codeset) {
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(void)__domainname;
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return (char *)__codeset;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* libintl.h */
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@@ -0,0 +1,40 @@
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/* search.h — POSIX search tables.
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*
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* Red Bear OS / relibc. Provides the binary-tree search family (tsearch,
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* tfind, tdelete, twalk) plus the GNU tdestroy extension. Implemented in
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* src/header/search/mod.rs; the VISIT enum order below MUST match the
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* PREORDER/POSTORDER/ENDORDER/LEAF constants there.
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*/
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#ifndef _SEARCH_H
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#define _SEARCH_H 1
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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preorder,
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postorder,
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endorder,
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leaf
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} VISIT;
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void *tsearch(const void *__key, void **__rootp,
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int (*__compar)(const void *, const void *));
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void *tfind(const void *__key, void *const *__rootp,
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int (*__compar)(const void *, const void *));
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void *tdelete(const void *__key, void **__rootp,
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int (*__compar)(const void *, const void *));
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void twalk(const void *__root,
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void (*__action)(const void *__nodep, VISIT __which, int __depth));
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/* GNU extension. */
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void tdestroy(void *__root, void (*__free_node)(void *__nodep));
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#ifdef __cplusplus
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}
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#endif
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#endif /* search.h */
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