Index: lib/libc/gen/gen-private.h =================================================================== --- lib/libc/gen/gen-private.h +++ lib/libc/gen/gen-private.h @@ -51,7 +51,11 @@ int dd_len; /* size of data buffer */ off_t dd_seek; /* magic cookie returned by getdirentries */ int dd_flags; /* flags for readdir */ +#ifndef IN_RTLD struct pthread_mutex *dd_lock; /* lock */ +#else + struct _donotuse *dd_lock; /* unused in rtld, keep same layout */ +#endif struct _telldir *dd_td; /* telldir position recording */ void *dd_compat_de; /* compat dirent */ }; Index: libexec/rtld-elf/Makefile =================================================================== --- libexec/rtld-elf/Makefile +++ libexec/rtld-elf/Makefile @@ -63,7 +63,8 @@ CFLAGS.reloc.c+=-fno-jump-tables .endif LDFLAGS+= -shared -Wl,-Bsymbolic -Wl,-z,defs -LIBADD= c_nossp_pic +# Pull in the dependencies that we use from libc +.include "rtld-libc/Makefile.inc" .if ${MK_TOOLCHAIN} == "no" LDFLAGS+= -L${LIBCDIR} .endif Index: libexec/rtld-elf/libmap.c =================================================================== --- libexec/rtld-elf/libmap.c +++ libexec/rtld-elf/libmap.c @@ -17,6 +17,7 @@ #include "rtld.h" #include "libmap.h" #include "paths.h" +#include "rtld_libc.h" TAILQ_HEAD(lm_list, lm); struct lm { Index: libexec/rtld-elf/rtld-libc/Makefile.inc =================================================================== --- /dev/null +++ libexec/rtld-elf/rtld-libc/Makefile.inc @@ -0,0 +1,102 @@ +# $FreeBSD$ +# This makefiles adds the necessary libc dependencies for RTLD without pulling +# in all of the complex libc bits such as locales, etc. + +.include + +LIBC_SRCTOP=${SRCTOP}/lib/libc +.if exists(${LIBC_SRCTOP}/${MACHINE_ARCH}) +LIBC_ARCH=${MACHINE_ARCH} +.else +LIBC_ARCH=${MACHINE_CPUARCH} +.endif + +CFLAGS+= -I${SRCTOP}/libexec/rtld-elf/rtld-libc + +# Build all the files that use __libc_interposing with -DIN_RTLD. With that +# define they avoid the use of __libc_interposing. Moreover, we compile with a +# different libc_private.h and namespace.h that redirects all calls to +# interposed functions to use the non-interposed version instead. +.PATH: ${LIBC_SRCTOP}/gen +SRCS+= opendir.c closedir.c readdir.c telldir.c + +# Avoid further dependencies by providing simple implementations of libc +# functions such as __error(), etc. +.PATH: ${SRCTOP}/libexec/rtld-elf/rtld-libc +SRCS+= rtld_libc.c + +# Now build the remaining files from libc: +.PATH: ${LIBC_SRCTOP}/stdlib +SRCS+= reallocf.c realpath.c getenv.c merge.c reallocarray.c +# TODO: fix merge.c to build with WARNS=6 +.if ${COMPILER_TYPE} == "clang" +CFLAGS.merge.c+=-Wno-error=null-pointer-arithmetic +.endif +.PATH: ${LIBC_SRCTOP}/gen +SRCS+= errlst.c getcwd.c getprogname.c raise.c sigsetops.c sysctlnametomib.c \ + __xuname.c +# errlst.c needs the errlst.h header from libc: +CFLAGS.errlst.c+=-I${LIBC_SRCTOP}/include + +# Use the string and memory .o files from libc instead of rebuilding them (they +# might be using optimized assembly and duplicating that logic here is awkward). +_libc_string_objects= bcopy memchr memcmp memcpy memmove stpncpy strcat \ + strchr strcmp stpcpy strcpy strcspn strdup strlcat strlcpy strlen strncmp \ + strncpy strrchr strsep strspn strstr strtok +# Also use all the syscall .o files from libc_nossp_pic: +_libc_other_objects= sigsetjmp lstat stat fstat fstatat fstatfs syscall \ + cerror geteuid getegid munmap mprotect sysarch __sysctl issetugid __getcwd \ + utrace thr_self thr_kill pread mmap lseek _exit _fstat _fstatat _fstatfs \ + getdirentries _getdirentries _close _fcntl _open _openat _read \ + _sigprocmask _write readlink _setjmp setjmp setjmperr + + +# Finally add additional architecture-dependent libc dependencies + +.if ${LIBC_ARCH} == "arm" +# ARM needs aeabi_unwind_cpp for _setjmp +_libc_other_objects+=aeabi_unwind_cpp +.elif ${LIBC_ARCH} == "i386" +# __udivdi3 is needed by kvprintf() in rtld_printf.c +# i386 also needs i386_set_gsbase for allocate_initial_tls() +_libc_other_objects+=udivdi3 qdivrem i386_set_gsbase +.elif ${LIBC_ARCH} == "powerpc" || ${LIBC_ARCH} == "powerpcspe" +# ppc needs __syncicache for reloc.c and __umoddi3+__udivdi3 for rtld_printf.c +_libc_other_objects+=syncicache umoddi3 udivdi3 qdivrem +# for some reason there is also a reference to abs() +_libc_other_objects+=abs +.elif ${LIBC_ARCH} == "powerpc64" +# ppc64 needs __syncicache for reloc.c +_libc_other_objects+=syncicache +.elif ${LIBC_ARCH} == "mips" +# 32-bit MIPS needs __umoddi3+__udivdi3 for rtld_printf.c +.if ${MACHINE_ARCH:Mmipsn32*} == "" && ${MACHINE_ARCH:Mmips64*} == "" +_libc_other_objects+=umoddi3 udivdi3 qdivrem +.endif +.elif ${LIBC_ARCH} == "sparc64" +# reloc.c uses __sparc_utrap which needs a lot of other object files +_libc_other_objects+=__sparc_utrap __sparc_utrap_fp_disabled __sparc_utrap_gen \ + __sparc_utrap_setup __sparc_utrap_align __sparc_utrap_emul kill getpid \ + fpu fpu_explode fpu_div fpu_reg fpu_sqrt fpu_implode fpu_subr fpu_add \ + fpu_compare fpu_mul +.endif + +# Extract all the .o files from libc_nossp_pic.a. This ensures that +# we don't accidentally pull in the interposing table or similar by linking +# directly against libc_nossp_pic.a +_rtld_libc_objs= +.for _obj in ${_libc_other_objects} ${_libc_string_objects} +_rtld_libc_objs+=${_obj}.nossppico +CLEANFILES+=${_obj}.nossppico +# LDFLAGS+= -Wl,--trace-symbol=${_obj} +.endfor +# LDFLAGS+= -Wl,--trace + +# We insert all the .o files from libc_nossp_pic.a into a new rtld_libc.a file +# to ensure that only .o files that are actually used end up being included. +rtld_libc.a: ${LIBC_NOSSP_PIC} ${SRCTOP}/libexec/rtld-elf/rtld-libc/Makefile.inc + ${AR} x ${LIBC_NOSSP_PIC} ${_rtld_libc_objs} + ${AR} cr ${.OBJDIR}/${.TARGET} ${_rtld_libc_objs} +CLEANFILES+=rtld_libc.a +LDADD+=${.OBJDIR}/rtld_libc.a +${PROG}: rtld_libc.a Index: libexec/rtld-elf/rtld-libc/libc_private.h =================================================================== --- /dev/null +++ libexec/rtld-elf/rtld-libc/libc_private.h @@ -0,0 +1,37 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 2019 Alex Richadson + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory (Department of Computer Science and + * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the + * DARPA SSITH research programme. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#ifndef _RTLD_LIBC_PRIVATE_H_ +#define _RTLD_LIBC_PRIVATE_H_ + +#include "rtld_libc.h" + +#endif /* _RTLD_LIBC_PRIVATE_H_ */ Index: libexec/rtld-elf/rtld-libc/namespace.h =================================================================== --- /dev/null +++ libexec/rtld-elf/rtld-libc/namespace.h @@ -0,0 +1,37 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 2019 Alex Richadson + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory (Department of Computer Science and + * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the + * DARPA SSITH research programme. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#define fcntl _fcntl +#define open _open +#define openat _openat +#define fstatfs _fstatfs +#define close _close +#define getdirentries _getdirentries Index: libexec/rtld-elf/rtld-libc/rtld_libc.h =================================================================== --- /dev/null +++ libexec/rtld-elf/rtld-libc/rtld_libc.h @@ -0,0 +1,87 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 2019 Alex Richadson + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory (Department of Computer Science and + * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the + * DARPA SSITH research programme. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#ifndef _RTLD_AVOID_LIBC_DEPS_H_ +#define _RTLD_AVOID_LIBC_DEPS_H_ + +#include +#include +#include +#include + +/* Avoid dependencies on libthr (used by closedir/opendir/readdir) */ +#define __isthreaded 0 +#define _pthread_mutex_lock(mtx) (void)0 +#define _pthread_mutex_unlock(mtx) (void)0 +#define _pthread_mutex_destroy(mtx) (void)0 +#define __libc_interposing error, must not use this variable inside rtld + +int __sys_close(int); +void __sys_exit(int) __dead2; +int __sys_fcntl(int, int, ...); +int __sys_fstat(int fd, struct stat *); +int __sys_fstatat(int, const char *, struct stat *, int); +int __sys___getcwd(char *, size_t); +int __sys_open(const char *, int, ...); +int __sys_openat(int, const char *, int, ...); +int __sys_sigprocmask(int, const sigset_t *, sigset_t *); +int __sys_thr_kill(long, int); +int __sys_thr_self(long *); +__ssize_t __sys_pread(int, void *, __size_t, __off_t); +__ssize_t __sys_read(int, void *, __size_t); +__ssize_t __sys_write(int, const void *, __size_t); + +extern char* __progname; +const char *_getprogname(void); +int __getosreldate(void); + + +/* + * Don't pull in any of the libc wrappers. Instead we use the system call + * directly inside RTLD to avoid pulling in __libc_interposing (which pulls + * in lots more object files). + */ +#define close(fd) __sys_close(fd) +#define _close(fd) __sys_close(fd) +#define exit(status) __sys_exit(status) +#define _exit(status) __sys_exit(status) +#define fcntl(fd, cmd, arg) __sys_fcntl(fd, cmd, arg) +#define _fcntl(fd, cmd, arg) __sys_fcntl(fd, cmd, arg) +#define _fstat(fd, sb) __sys_fstat(fd, sb) +#define open(path, ...) __sys_open(path, __VA_ARGS__) +#define pread(fd, buf, nbytes, offset) __sys_pread(fd, buf, nbytes, offset) +#define read(fd, buf, nbytes) __sys_read(fd, buf, nbytes) +#define sigprocmask(how, set, oset) __sys_sigprocmask(how, set, oset) +#define strerror(errno) rtld_strerror(errno) +#define _write(fd, buf, nbytes) __sys_write(fd, buf, nbytes) +#define write(fd, buf, nbytes) __sys_write(fd, buf, nbytes) + +#endif /* _RTLD_AVOID_LIBC_DEPS_H_ */ Index: libexec/rtld-elf/rtld-libc/rtld_libc.c =================================================================== --- /dev/null +++ libexec/rtld-elf/rtld-libc/rtld_libc.c @@ -0,0 +1,138 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 2019 Alex Richadson + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory (Department of Computer Science and + * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the + * DARPA SSITH research programme. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "rtld.h" +#include "rtld_printf.h" +#include "rtld_libc.h" + +/* + * Avoid dependencies from various libc calls on abort(). Since this is only + * used for assertions in RTLD, we can just raise SIGABRT directly. + */ +void +abort(void) +{ + raise(SIGABRT); + __builtin_trap(); +} + +static int rtld_errno; +int *__error(void); +int * +__error(void) +{ + + return (&rtld_errno); +} + +/* Avoid dependency on __libc_interposing, use the system call directly. */ +#undef sigprocmask +int +sigprocmask(int how, const sigset_t *set, sigset_t *oset) +{ + + return (__sys_sigprocmask(how, set, oset)); +} +__strong_reference(sigprocmask, __libc_sigprocmask); + +#if defined DEBUG || !defined(NDEBUG) +/* Provide an implementation of __assert that does not pull in fprintf() */ +void +__assert(const char *func, const char *file, int line, const char *failedexpr) +{ + + if (func == NULL) + (void)rtld_fdprintf(STDERR_FILENO, + "Assertion failed: (%s), file %s, line %d.\n", failedexpr, + file, line); + else + (void)rtld_fdprintf(STDERR_FILENO, + "Assertion failed: (%s), function %s, file %s, line %d.\n", + failedexpr, func, file, line); + abort(); + /* NOTREACHED */ +} +#endif + +/* + * Avoid pulling in all of pthreads from getpagesize(). + * It normally uses libc/gen/auxv.c which pulls in pthread_once(). + */ +int +getpagesize(void) +{ + int mib[2], value; + size_t size; + static int pagesize; + + if (pagesize != 0) + return (pagesize); + + if (npagesizes > 0) + pagesize = pagesizes[0]; + + if (pagesize == 0) { + mib[0] = CTL_HW; + mib[1] = HW_PAGESIZE; + size = sizeof(value); + if (sysctl(mib, nitems(mib), &value, &size, NULL, 0) == -1) + pagesize = PAGE_SIZE; + else + pagesize = value; + } + + return (pagesize); +} + +extern int __sys___sysctl(const int *name, u_int namelen, void *oldp, + size_t *oldlenp, const void *newp, size_t newlen); + +int +sysctl(const int *name, u_int namelen, void *oldp, size_t *oldlenp, + const void *newp, size_t newlen) +{ + int retval; + + assert(name[0] != CTL_USER && "Not supported inside rtld!"); + retval = __sys___sysctl(name, namelen, oldp, oldlenp, newp, newlen); + return (retval); +} Index: libexec/rtld-elf/rtld-libc/un-namespace.h =================================================================== --- /dev/null +++ libexec/rtld-elf/rtld-libc/un-namespace.h @@ -0,0 +1,39 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright 2019 Alex Richadson + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory (Department of Computer Science and + * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the + * DARPA SSITH research programme. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#undef fcntl +#undef open +#undef openat +#undef close +#undef fstatfs +#undef getdirentries + +#include "rtld_libc.h" Index: libexec/rtld-elf/rtld.c =================================================================== --- libexec/rtld-elf/rtld.c +++ libexec/rtld-elf/rtld.c @@ -69,6 +69,7 @@ #include "rtld_malloc.h" #include "rtld_utrace.h" #include "notes.h" +#include "rtld_libc.h" /* Types. */ typedef void (*func_ptr_type)(void); @@ -78,7 +79,6 @@ /* Variables that cannot be static: */ extern struct r_debug r_debug; /* For GDB */ extern int _thread_autoinit_dummy_decl; -extern char* __progname; extern void (*__cleanup)(void); @@ -250,7 +250,6 @@ /* Only here to fix -Wmissing-prototypes warnings */ int __getosreldate(void); -void __pthread_cxa_finalize(struct dl_phdr_info *a); func_ptr_type _rtld(Elf_Addr *sp, func_ptr_type *exit_proc, Obj_Entry **objp); Elf_Addr _rtld_bind(Obj_Entry *obj, Elf_Size reloff); @@ -5647,26 +5646,6 @@ osreldate = osrel; return (osreldate); } - -void -exit(int status) -{ - - _exit(status); -} - -void (*__cleanup)(void); -int __isthreaded = 0; -int _thread_autoinit_dummy_decl = 1; - -/* - * No unresolved symbols for rtld. - */ -void -__pthread_cxa_finalize(struct dl_phdr_info *a __unused) -{ -} - const char * rtld_strerror(int errnum) { Index: libexec/rtld-elf/rtld_lock.c =================================================================== --- libexec/rtld-elf/rtld_lock.c +++ libexec/rtld-elf/rtld_lock.c @@ -52,6 +52,7 @@ #include "debug.h" #include "rtld.h" #include "rtld_machdep.h" +#include "rtld_libc.h" void _rtld_thread_init(struct RtldLockInfo *) __exported; void _rtld_atfork_pre(int *) __exported; Index: libexec/rtld-elf/rtld_printf.c =================================================================== --- libexec/rtld-elf/rtld_printf.c +++ libexec/rtld-elf/rtld_printf.c @@ -44,6 +44,7 @@ #include #include #include "rtld_printf.h" +#include "rtld_libc.h" #define MAXNBUF (sizeof(intmax_t) * NBBY + 1) Index: libexec/rtld-elf/xmalloc.c =================================================================== --- libexec/rtld-elf/xmalloc.c +++ libexec/rtld-elf/xmalloc.c @@ -34,6 +34,7 @@ #include "rtld.h" #include "rtld_printf.h" #include "rtld_malloc.h" +#include "rtld_libc.h" void * xcalloc(size_t number, size_t size)