diff options
author | ru <ru@FreeBSD.org> | 2006-08-23 12:12:56 +0000 |
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committer | ru <ru@FreeBSD.org> | 2006-08-23 12:12:56 +0000 |
commit | aa1113efeac4967bde68a5bfe0a4d71645df8c2d (patch) | |
tree | e023655c23405d4cc96c02a952364de070070e61 /usr.bin/truss | |
parent | 266d19dde4623a7ff15746d6f0c550664635f2db (diff) | |
download | FreeBSD-src-aa1113efeac4967bde68a5bfe0a4d71645df8c2d.zip FreeBSD-src-aa1113efeac4967bde68a5bfe0a4d71645df8c2d.tar.gz |
Remove alpha-specific stuff.
Diffstat (limited to 'usr.bin/truss')
-rw-r--r-- | usr.bin/truss/alpha-fbsd.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/usr.bin/truss/alpha-fbsd.c b/usr.bin/truss/alpha-fbsd.c deleted file mode 100644 index 7afcaa8..0000000 --- a/usr.bin/truss/alpha-fbsd.c +++ /dev/null @@ -1,360 +0,0 @@ -/* - * Copryight 1998 Sean Eric Fagan - * - * 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Sean Eric Fagan - * 4. Neither the name of the author may be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * 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 lint -static const char rcsid[] = - "$FreeBSD$"; -#endif /* not lint */ - -/* - * FreeBSD/alpha-specific system call handling. This is probably the most - * complex part of the entire truss program, although I've got lots of - * it handled relatively cleanly now. The system call names are generated - * automatically, thanks to /usr/src/sys/kern/syscalls.master. The - * names used for the various structures are confusing, I sadly admit. - * - * This file is almost nothing more than a slightly-edited i386-fbsd.c. - */ - -#include <sys/types.h> -#include <sys/ioctl.h> -#include <sys/pioctl.h> -#include <sys/syscall.h> - -#include <machine/reg.h> - -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <unistd.h> - -#include "truss.h" -#include "syscall.h" -#include "extern.h" - -static int fd = -1; -static int cpid = -1; - -#include "syscalls.h" - -static int nsyscalls = sizeof(syscallnames) / sizeof(syscallnames[0]); - -/* - * This is what this particular file uses to keep track of a system call. - * It is probably not quite sufficient -- I can probably use the same - * structure for the various syscall personalities, and I also probably - * need to nest system calls (for signal handlers). - * - * 'struct syscall' describes the system call; it may be NULL, however, - * if we don't know about this particular system call yet. - */ -static struct freebsd_syscall { - struct syscall *sc; - const char *name; - int number; - unsigned long *args; - int nargs; /* number of arguments -- *not* number of words! */ - char **s_args; /* the printable arguments */ -} fsc; - -/* Clear up and free parts of the fsc structure. */ -static __inline void -clear_fsc(void) { - if (fsc.args) { - free(fsc.args); - } - if (fsc.s_args) { - int i; - for (i = 0; i < fsc.nargs; i++) - if (fsc.s_args[i]) - free(fsc.s_args[i]); - free(fsc.s_args); - } - memset(&fsc, 0, sizeof(fsc)); -} - -/* - * Called when a process has entered a system call. nargs is the - * number of words, not number of arguments (a necessary distinction - * in some cases). Note that if the STOPEVENT() code in alpha/alpha/trap.c - * is ever changed these functions need to keep up. - */ - -void -alpha_syscall_entry(struct trussinfo *trussinfo, int nargs) { - char buf[32]; - struct reg regs; - int syscall_num; - int i; - unsigned int parm_offset; - struct syscall *sc; - int indir = 0; /* indirect system call */ - - if (fd == -1 || trussinfo->pid != cpid) { - sprintf(buf, "/proc/%d/regs", trussinfo->pid); - fd = open(buf, O_RDWR); - if (fd == -1) { - fprintf(trussinfo->outfile, "-- CANNOT OPEN REGISTERS --\n"); - return; - } - cpid = trussinfo->pid; - } - - clear_fsc(); - lseek(fd, 0L, 0); - if (read(fd, ®s, sizeof(regs)) != sizeof(regs)) { - fprintf(trussinfo->outfile, "-- CANNOT READ REGISTERS --\n"); - return; - } - parm_offset = regs.r_regs[R_SP] + sizeof(int); - - /* - * FreeBSD has two special kinds of system call redirctions -- - * SYS_syscall, and SYS___syscall. The former is the old syscall() - * routine, basicly; the latter is for quad-aligned arguments. - */ - syscall_num = regs.r_regs[R_V0]; - if (syscall_num == SYS_syscall || syscall_num == SYS___syscall) { - indir = 1; - syscall_num = regs.r_regs[R_A0]; - } - - fsc.number = syscall_num; - fsc.name = - (syscall_num < 0 || syscall_num > nsyscalls) ? NULL : syscallnames[syscall_num]; - if (!fsc.name) { - fprintf(trussinfo->outfile, "-- UNKNOWN SYSCALL %d --\n", syscall_num); - } - - if (fsc.name && (trussinfo->flags & FOLLOWFORKS) - && ((!strcmp(fsc.name, "fork") - || !strcmp(fsc.name, "rfork") - || !strcmp(fsc.name, "vfork")))) - { - trussinfo->in_fork = 1; - } - - if (nargs == 0) - return; - - fsc.args = malloc((1+nargs) * sizeof(unsigned long)); - switch (nargs) { - default: - /* - * The OS doesn't seem to allow more than 10 words of - * parameters (yay!). So we shouldn't be here. - */ - warn("More than 10 words (%d) of arguments!\n", nargs); - break; - case 10: case 9: case 8: case 7: - /* - * If there are 7-10 words of arguments, they are placed - * on the stack, as is normal for other processors. - * The fall-through for all of these is deliberate!!! - */ - lseek(Procfd, regs.r_regs[R_SP], SEEK_SET); - read(fd, &fsc.args[6], (nargs - 6) * sizeof(fsc.args[0])); - case 6: fsc.args[5] = regs.r_regs[R_A5]; - case 5: fsc.args[4] = regs.r_regs[R_A4]; - case 4: fsc.args[3] = regs.r_regs[R_A3]; - case 3: fsc.args[2] = regs.r_regs[R_A2]; - case 2: fsc.args[1] = regs.r_regs[R_A1]; - case 1: fsc.args[0] = regs.r_regs[R_A0]; - case 0: - break; - } - - if (indir) { - memmove(&fsc.args[0], &fsc.args[1], (nargs-1) * sizeof(fsc.args[0])); - } - - sc = get_syscall(fsc.name); - if (sc) { - fsc.nargs = sc->nargs; - } else { -#if DEBUG - fprintf(trussinfo->outfile, "unknown syscall %s -- setting args to %d\n", - fsc.name, nargs); -#endif - fsc.nargs = nargs; - } - - fsc.s_args = malloc((1+fsc.nargs) * sizeof(char*)); - memset(fsc.s_args, 0, fsc.nargs * sizeof(char*)); - fsc.sc = sc; - - /* - * At this point, we set up the system call arguments. - * We ignore any OUT ones, however -- those are arguments that - * are set by the system call, and so are probably meaningless - * now. This doesn't currently support arguments that are - * passed in *and* out, however. - */ - - if (fsc.name) { - -#if DEBUG - fprintf(stderr, "syscall %s(", fsc.name); -#endif - for (i = 0; i < fsc.nargs; i++) { -#if DEBUG - fprintf(stderr, "0x%x%s", - sc - ? fsc.args[sc->args[i].offset] - : fsc.args[i], - i < (fsc.nargs - 1) ? "," : ""); -#endif - if (sc && !(sc->args[i].type & OUT)) { - fsc.s_args[i] = print_arg(Procfd, &sc->args[i], fsc.args, 0, trussinfo); - } - } -#if DEBUG - fprintf(stderr, ")\n"); -#endif - } - -#if DEBUG - fprintf(trussinfo->outfile, "\n"); -#endif - - /* - * Some system calls should be printed out before they are done -- - * execve() and exit(), for example, never return. Possibly change - * this to work for any system call that doesn't have an OUT - * parameter? - */ - - if (!strcmp(fsc.name, "execve") || !strcmp(fsc.name, "exit")) { - - /* XXX - * This could be done in a more general - * manner but it still wouldn't be very pretty. - */ - if (!strcmp(fsc.name, "execve")) { - if ((trussinfo->flags & EXECVEARGS) == 0) - if (fsc.s_args[1]) { - free(fsc.s_args[1]); - fsc.s_args[1] = NULL; - } - if ((trussinfo->flags & EXECVEENVS) == 0) - if (fsc.s_args[2]) { - free(fsc.s_args[2]); - fsc.s_args[2] = NULL; - } - } - - print_syscall(trussinfo, fsc.name, fsc.nargs, fsc.s_args); - fprintf(trussinfo->outfile, "\n"); - } - - return; -} - -/* - * And when the system call is done, we handle it here. - * Currently, no attempt is made to ensure that the system calls - * match -- this needs to be fixed (and is, in fact, why S_SCX includes - * the sytem call number instead of, say, an error status). - */ - -long -alpha_syscall_exit(struct trussinfo *trussinfo, int syscall_num __unused) -{ - char buf[32]; - struct reg regs; - long retval; - int i; - int errorp; - struct syscall *sc; - - if (fd == -1 || trussinfo->pid != cpid) { - sprintf(buf, "/proc/%d/regs", trussinfo->pid); - fd = open(buf, O_RDONLY); - if (fd == -1) { - fprintf(trussinfo->outfile, "-- CANNOT OPEN REGISTERS --\n"); - return (-1); - } - cpid = trussinfo->pid; - } - - lseek(fd, 0L, 0); - if (read(fd, ®s, sizeof(regs)) != sizeof(regs)) { - fprintf(trussinfo->outfile, "\n"); - return (-1); - } - retval = regs.r_regs[R_V0]; - errorp = !!(regs.r_regs[R_A3]); - - /* - * This code, while simpler than the initial versions I used, could - * stand some significant cleaning. - */ - - sc = fsc.sc; - if (!sc) { - for (i = 0; i < fsc.nargs; i++) - asprintf(&fsc.s_args[i], "0x%lx", fsc.args[i]); - } else { - /* - * Here, we only look for arguments that have OUT masked in -- - * otherwise, they were handled in the syscall_entry function. - */ - for (i = 0; i < sc->nargs; i++) { - char *temp; - if (sc->args[i].type & OUT) { - /* - * If an error occurred, than don't bothe getting the data; - * it may not be valid. - */ - if (errorp) - asprintf(&temp, "0x%lx", fsc.args[sc->args[i].offset]); - else - temp = print_arg(Procfd, &sc->args[i], fsc.args, retval, trussinfo); - fsc.s_args[i] = temp; - } - } - } - - /* - * It would probably be a good idea to merge the error handling, - * but that complicates things considerably. - */ - - print_syscall_ret(trussinfo, fsc.name, fsc.nargs, fsc.s_args, errorp, retval); - clear_fsc(); - - return (retval); -} |