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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _LIBC_INT_H
#define _LIBC_INT_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Libc/rtld Runtime Interface
*/
#define CI_NULL 0 /* (void) last entry */
#define CI_VERSION 1 /* current version of ri_interface */
#define CI_ATEXIT 2 /* _preexec_exit_handlers() address */
#define CI_LCMESSAGES 3 /* message locale */
#define CI_BIND_GUARD 4 /* bind_guard() address */
#define CI_BIND_CLEAR 5 /* bind_clear() address */
#define CI_THR_SELF 6 /* thr_self() address */
#define CI_TLS_MODADD 7 /* __tls_mod_add() address */
#define CI_TLS_MODREM 8 /* __tls_mod_remove() address */
#define CI_TLS_STATMOD 9 /* __tls_static_mods() address */
#define CI_THRINIT 10 /* libc thread initialization */
#define CI_CRITICAL 11 /* critical level query interface */
#define CI_MAX 12
#define CI_V_NONE 0 /* ci_version versions */
#define CI_V_ONE 1 /* original version */
#define CI_V_TWO 2
#define CI_V_THREE 3
#define CI_V_FOUR 4
#define CI_V_FIVE 5
#define CI_V_SIX 6
#define CI_V_CURRENT CI_V_SIX /* current version of libc interface */
#define CI_V_NUM 7 /* number of CI_V_* numbers */
/*
* Flags for the bindguard routines.
* THR_FLG_RTLD used to live in usr/src/cmd/sgs/rtld/common/_rtld.h
* THR_FLG_NOLOCK and THR_FLG_REENTER are new in version CI_V_FIVE.
*/
#define THR_FLG_RTLD 0x00000001 /* bind_guard() flag */
#define THR_FLG_NOLOCK 0x00000002 /* don't use ld.so.1's lock */
#define THR_FLG_REENTER 0x00000004 /* temporary leave / reenter */
/*
* Libc to ld.so.1 interface communication structure.
*/
typedef struct {
int ci_tag;
union {
void *ci_func;
long ci_val;
char *ci_ptr;
} ci_un;
} Lc_interface;
/*
* Address range returned via CI_ATEXIT. Note, the address range array passed
* back from ld.so.1 is maintained by ld.so.1 and should not be freed by libc.
*/
typedef struct {
void * lb; /* lower bound */
void * ub; /* upper bound */
} Lc_addr_range_t;
/*
* Thread-Local storage data type and interfaces shared between
* libc & ld.so.1.
*/
typedef struct {
unsigned long ti_moduleid; /* module ID for TLS var */
unsigned long ti_tlsoffset; /* offset into tls block for TLS var */
} TLS_index;
typedef struct {
const char *tm_modname; /* name of object */
/* containing TLS */
unsigned long tm_modid; /* TLS module id */
void * tm_tlsblock; /* pointer to r/o init image */
unsigned long tm_filesz; /* initialized file size */
unsigned long tm_memsz; /* memory size */
long tm_stattlsoffset; /* signed offset into static */
/* TLS block */
unsigned long tm_flags;
void * tm_tlsinitarray; /* TLS .init function array */
unsigned long tm_tlsinitarraycnt; /* # of entries in initarray */
void * tm_tlsfiniarray; /* TLS .fini function array */
unsigned long tm_tlsfiniarraycnt; /* # of entries in finiarray */
unsigned long tm_pad[5]; /* future expansion */
} TLS_modinfo;
#ifdef _SYSCALL32
typedef struct {
caddr32_t tm_modname; /* name of object */
/* containing TLS */
uint32_t tm_modid; /* TLS module id */
caddr32_t tm_tlsblock; /* pointer to r/o init image */
uint32_t tm_filesz; /* initialized file size */
uint32_t tm_memsz; /* memory size */
int32_t tm_stattlsoffset; /* signed offset into static */
/* TLS block */
uint32_t tm_flags;
caddr32_t tm_tlsinitarray; /* TLS .init function array */
uint32_t tm_tlsinitarraycnt; /* # of entries in initarray */
caddr32_t tm_tlsfiniarray; /* TLS .fini function array */
uint32_t tm_tlsfiniarraycnt; /* # of entries in finiarray */
uint32_t tm_pad[5]; /* future expansion */
} TLS_modinfo32;
#endif
/*
* Flag values for TLS_modifo.tm_flags
*/
#define TM_FLG_STATICTLS 0x0001 /* Static TLS module */
#ifdef __cplusplus
}
#endif
#endif /* _LIBC_INT_H */
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