1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * String conversion routine for version flag entries. 29 */ 30 #include <stdio.h> 31 #include "_conv.h" 32 #include "version_msg.h" 33 34 #define VERFLAGSZ CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \ 35 MSG_VER_FLG_WEAK_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 36 MSG_VER_FLG_BASE_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 37 MSG_VER_FLG_INFO_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \ 38 CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE 39 40 /* 41 * Ensure that Conv_ver_flags_buf_t is large enough: 42 * 43 * VERFLAGSZ is the real minimum size of the buffer required by 44 * conv_ver_flags(). However, Conv_ver_flags_buf_t uses CONV_VER_FLAGS_BUFSIZE 45 * to set the buffer size. We do things this way because the definition of 46 * VERFLAGSZ uses information that is not available in the environment of 47 * other programs that include the conv.h header file. 48 */ 49 #if (CONV_VER_FLAGS_BUFSIZE != VERFLAGSZ) && !defined(__lint) 50 #define REPORT_BUFSIZE VERFLAGSZ 51 #include "report_bufsize.h" 52 #error "CONV_VER_FLAGS_BUFSIZE does not match VERFLAGSZ" 53 #endif 54 55 const char * 56 conv_ver_flags(Half flags, Conv_fmt_flags_t fmt_flags, 57 Conv_ver_flags_buf_t *ver_flags_buf) 58 { 59 static const Val_desc vda[] = { 60 { VER_FLG_WEAK, MSG_VER_FLG_WEAK }, 61 { VER_FLG_BASE, MSG_VER_FLG_BASE }, 62 { VER_FLG_INFO, MSG_VER_FLG_INFO }, 63 { 0, 0 } 64 }; 65 static CONV_EXPN_FIELD_ARG conv_arg = { 66 NULL, sizeof (ver_flags_buf->buf) }; 67 68 if (flags == 0) 69 return (MSG_ORIG(MSG_GBL_NULL)); 70 71 conv_arg.buf = ver_flags_buf->buf; 72 conv_arg.oflags = conv_arg.rflags = flags; 73 (void) conv_expn_field(&conv_arg, vda, fmt_flags); 74 75 return ((const char *)ver_flags_buf->buf); 76 } 77 78 79 /* 80 * Format a version index as contained in a VERSYM section 81 * 82 * entry: 83 * verndx - Version index to format 84 * gnuver - If True (non-zero), the version rules used by the 85 * GNU ld are assumed. If False (0), Solaris ld rules apply. 86 */ 87 const char * 88 conv_ver_index(Versym verndx, int gnuver, Conv_inv_buf_t *inv_buf) 89 { 90 const char *fmt; 91 92 /* Special case versions starting at VER_NDX_LORESERVE */ 93 if (verndx == VER_NDX_ELIMINATE) 94 return (MSG_ORIG(MSG_VERSYM_ELIMINATE)); 95 96 /* 97 * The GNU style of versioning uses the top bit of the 98 * 16-bit version index (0x8000) as a "hidden bit". A 99 * hidden symbol is supposed to be ignored by the linker. 100 */ 101 if (gnuver && (verndx & 0x8000)) { 102 verndx &= ~0x8000; 103 fmt = MSG_ORIG(MSG_VERSYM_GNUH_FMT); 104 } else { 105 fmt = MSG_ORIG(MSG_VERSYM_FMT); 106 } 107 108 /* format as numeric */ 109 (void) snprintf(inv_buf->buf, sizeof (inv_buf->buf), 110 fmt, EC_HALF(verndx)); 111 return (inv_buf->buf); 112 } 113