Date: Fri, 22 May 2020 13:17:57 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r361381 - stable/11/lib/libc/gen Message-ID: <202005221317.04MDHvjS077865@repo.freebsd.org>
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Author: kib Date: Fri May 22 13:17:57 2020 New Revision: 361381 URL: https://svnweb.freebsd.org/changeset/base/361381 Log: MFC r342743 (by romain): Add man page for dlvsym(3). Modified: stable/11/lib/libc/gen/Makefile.inc stable/11/lib/libc/gen/dlopen.3 Directory Properties: stable/11/ (props changed) Modified: stable/11/lib/libc/gen/Makefile.inc ============================================================================== --- stable/11/lib/libc/gen/Makefile.inc Fri May 22 13:14:21 2020 (r361380) +++ stable/11/lib/libc/gen/Makefile.inc Fri May 22 13:17:57 2020 (r361381) @@ -321,7 +321,8 @@ MLINKS+=dlopen.3 fdlopen.3 \ dlopen.3 dlclose.3 \ dlopen.3 dlerror.3 \ dlopen.3 dlfunc.3 \ - dlopen.3 dlsym.3 + dlopen.3 dlsym.3 \ + dlopen.3 dlvsym.3 MLINKS+=err.3 err_set_exit.3 \ err.3 err_set_file.3 \ err.3 errc.3 \ Modified: stable/11/lib/libc/gen/dlopen.3 ============================================================================== --- stable/11/lib/libc/gen/dlopen.3 Fri May 22 13:14:21 2020 (r361380) +++ stable/11/lib/libc/gen/dlopen.3 Fri May 22 13:17:57 2020 (r361381) @@ -32,13 +32,14 @@ .\" @(#) dlopen.3 1.6 90/01/31 SMI .\" $FreeBSD$ .\" -.Dd July 7, 2017 +.Dd January 2, 2019 .Dt DLOPEN 3 .Os .Sh NAME .Nm dlopen , .Nm fdlopen , .Nm dlsym , +.Nm dlvsym , .Nm dlfunc , .Nm dlerror , .Nm dlclose @@ -53,6 +54,8 @@ .Fn fdlopen "int fd" "int mode" .Ft void * .Fn dlsym "void * restrict handle" "const char * restrict symbol" +.Ft void * +.Fn dlvsym "void * restrict handle" "const char * restrict symbol" "const char * restrict version" .Ft dlfunc_t .Fn dlfunc "void * restrict handle" "const char * restrict symbol" .Ft char * @@ -74,7 +77,8 @@ provides access to the shared object in .Fa path , returning a descriptor that can be used for later references to the object in calls to -.Fn dlsym +.Fn dlsym , +.Fn dlvsym and .Fn dlclose . If @@ -300,6 +304,16 @@ condition which may be queried with .Fn dlerror . .Pp The +.Fn dlvsym +function behaves like +.Fn dlsym , +but takes an extra argument +.Fa version : +a null-terminated character string which is used to request a specific version +of +.Fa symbol . +.Pp +The .Fn dlfunc function implements all of the behavior of @@ -328,6 +342,7 @@ occurred during a call to .Fn dladdr , .Fn dlinfo , .Fn dlsym , +.Fn dlvsym , .Fn dlfunc , or .Fn dlclose . @@ -375,7 +390,10 @@ using the option to .Xr ld 1 for symbols defined in the executable to become visible to -.Fn dlsym . +.Fn dlsym , +.Fn dlvsym +or +.Fn dlfunc .Pp Other ELF platforms require linking with .Lb libdl @@ -397,6 +415,7 @@ The .Fn dlopen , .Fn fdlopen , .Fn dlsym , +.Fn dlvsym , and .Fn dlfunc functions
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