2 * Copyright (c) 1996 Barton P. Miller
4 * We provide the Paradyn Parallel Performance Tools (below
5 * described as Paradyn") on an AS IS basis, and do not warrant its
6 * validity or performance. We reserve the right to update, modify,
7 * or discontinue this software at any time. We shall have no
8 * obligation to supply such updates or modifications or any other
9 * form of support to you.
11 * This license is for research uses. For such uses, there is no
12 * charge. We define "research use" to mean you may freely use it
13 * inside your organization for whatever purposes you see fit. But you
14 * may not re-distribute Paradyn or parts of Paradyn, in any form
15 * source or binary (including derivatives), electronic or otherwise,
16 * to any other organization or entity without our permission.
18 * (for other uses, please contact us at paradyn@cs.wisc.edu)
20 * All warranties, including without limitation, any warranty of
21 * merchantability or fitness for a particular purpose, are hereby
24 * By your use of Paradyn, you understand and agree that we (or any
25 * other person or entity with proprietary rights in Paradyn) are
26 * under no obligation to provide either maintenance services,
27 * update services, notices of latent defects, or correction of
28 * defects for Paradyn.
30 * Even if advised of the possibility of such damages, under no
31 * circumstances shall we (or any other person or entity with
32 * proprietary rights in the software licensed hereunder) be liable
33 * to you or any third party for direct, indirect, or consequential
34 * damages of any character regardless of type of action, including,
35 * without limitation, loss of profits, loss of use, loss of good
36 * will, or computer failure or malfunction. You agree to indemnify
37 * us (and any other person or entity with proprietary rights in the
38 * software licensed hereunder) for any and all liability it may
39 * incur to third parties resulting from your use of Paradyn.
42 /************************************************************************
43 * RTsolaris.c: mutatee-side library function specific to Solaris
44 ************************************************************************/
47 #include <sys/ucontext.h>
52 #include "dyninstAPI_RT/h/rtinst.h"
54 /************************************************************************
55 * void DYNINSTos_init(void)
57 * os initialization function
58 ************************************************************************/
61 DYNINSTos_init(int calledByFork, int calledByAttach)
65 This is currently being used only on the x86 platform.
67 #ifdef i386_unknown_solaris2_5
68 void DYNINSTtrapHandler(int sig, siginfo_t *info, ucontext_t *uap);
70 act.sa_handler = DYNINSTtrapHandler;
72 sigfillset(&act.sa_mask);
73 if (sigaction(SIGTRAP, &act, 0) != 0) {
74 perror("sigaction(SIGTRAP)");
87 /****************************************************************************
88 The trap handler. Currently being used only on x86 platform.
90 Traps are used when we can't insert a jump at a point. The trap
91 handler looks up the address of the base tramp for the point that
92 uses the trap, and set the pc to this base tramp.
93 The paradynd is responsible for updating the tramp table when it
94 inserts instrumentation.
95 *****************************************************************************/
97 #ifdef i386_unknown_solaris2_5
98 trampTableEntry DYNINSTtrampTable[TRAMPTABLESZ];
99 unsigned DYNINSTtotalTraps = 0;
101 static unsigned lookup(unsigned key) {
104 for (u = HASH1(key); 1; u = (u + HASH2(key)) % TRAMPTABLESZ) {
105 k = DYNINSTtrampTable[u].key;
109 return DYNINSTtrampTable[u].val;
116 void DYNINSTtrapHandler(int sig, siginfo_t *info, ucontext_t *uap) {
117 unsigned pc = uap->uc_mcontext.gregs[PC];
118 unsigned nextpc = lookup(pc);
121 /* kludge: maybe the PC was not automatically adjusted after the trap */
122 /* this happens for a forked process */
128 uap->uc_mcontext.gregs[PC] = nextpc;
137 int DYNINSTloadLibrary(char *libname)
139 if (dlopen(libname, RTLD_NOW | RTLD_GLOBAL) != NULL)