Apply FreeBSD changes.
There is an incomplete piece of code in here which requires the process handling library which is still under development.
This commit is contained in:
John Birrell
parent
4257781cdc
commit
a6847cf6de
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=178537
@ -34,15 +34,20 @@
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include <limits.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <signal.h>
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#if defined(sun)
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#include <alloca.h>
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#endif
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#include <libgen.h>
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#if defined(sun)
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#include <libproc.h>
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#endif
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typedef struct dtrace_cmd {
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void (*dc_func)(struct dtrace_cmd *); /* function to compile arg */
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@ -92,8 +97,9 @@ static int g_mode = DMODE_EXEC;
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static int g_status = E_SUCCESS;
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static int g_grabanon = 0;
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static const char *g_ofile = NULL;
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static FILE *g_ofp = stdout;
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static FILE *g_ofp;
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static dtrace_hdl_t *g_dtp;
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#if defined(sun)
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static char *g_etcfile = "/etc/system";
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static const char *g_etcbegin = "* vvvv Added by DTrace";
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static const char *g_etcend = "* ^^^^ Added by DTrace";
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@ -108,6 +114,7 @@ static const char *g_etc[] = {
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"* chapter of the Solaris Dynamic Tracing Guide for details.",
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"*",
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NULL };
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#endif
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static int
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usage(FILE *fp)
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@ -195,6 +202,10 @@ fatal(const char *fmt, ...)
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static void
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dfatal(const char *fmt, ...)
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{
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#if !defined(sun) && defined(NEED_ERRLOC)
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char *p_errfile = NULL;
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int errline = 0;
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#endif
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va_list ap;
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va_start(ap, fmt);
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@ -212,6 +223,11 @@ dfatal(const char *fmt, ...)
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(void) fprintf(stderr, "%s\n",
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dtrace_errmsg(g_dtp, dtrace_errno(g_dtp)));
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}
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#if !defined(sun) && defined(NEED_ERRLOC)
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dt_get_errloc(g_dtp, &p_errfile, &errline);
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if (p_errfile != NULL)
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printf("File '%s', line %d\n", p_errfile, errline);
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#endif
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/*
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* Close the DTrace handle to ensure that any controlled processes are
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@ -372,6 +388,7 @@ dof_prune(const char *fname)
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free(buf);
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}
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#if defined(sun)
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static void
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etcsystem_prune(void)
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{
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@ -482,6 +499,7 @@ etcsystem_add(void)
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error("added forceload directives to %s\n", g_ofile);
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}
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#endif
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static void
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print_probe_info(const dtrace_probeinfo_t *p)
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@ -611,12 +629,26 @@ anon_prog(const dtrace_cmd_t *dcp, dof_hdr_t *dof, int n)
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p = (uchar_t *)dof;
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q = p + dof->dofh_loadsz;
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#if defined(sun)
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oprintf("dof-data-%d=0x%x", n, *p++);
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while (p < q)
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oprintf(",0x%x", *p++);
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oprintf(";\n");
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#else
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/*
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* On FreeBSD, the DOF data is handled as a kernel environment (kenv)
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* string. We use two hex characters per DOF byte.
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*/
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oprintf("dof-data-%d=%02x", n, *p++);
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while (p < q)
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oprintf("%02x", *p++);
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oprintf("\n");
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#endif
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dtrace_dof_destroy(g_dtp, dof);
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}
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@ -741,6 +773,8 @@ compile_str(dtrace_cmd_t *dcp)
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static void
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prochandler(struct ps_prochandle *P, const char *msg, void *arg)
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{
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fatal("DOODAD in function %s, file %s, line %d\n",__FUNCTION__,__FILE__,__LINE__);
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#ifdef DOODAD
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const psinfo_t *prp = Ppsinfo(P);
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int pid = Pstatus(P)->pr_pid;
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char name[SIG2STR_MAX];
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@ -778,6 +812,7 @@ prochandler(struct ps_prochandle *P, const char *msg, void *arg)
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g_pslive--;
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break;
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}
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#endif
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}
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/*ARGSUSED*/
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@ -1159,9 +1194,10 @@ main(int argc, char *argv[])
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dtrace_optval_t opt;
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dtrace_cmd_t *dcp;
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g_ofp = stdout;
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int done = 0, mode = 0;
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int err, i;
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char c, *p, **v;
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int err, i, c;
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char *p, **v;
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struct ps_prochandle *P;
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pid_t pid;
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@ -1188,7 +1224,7 @@ main(int argc, char *argv[])
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* options into g_argv[], and abort if any invalid options are found.
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*/
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for (optind = 1; optind < argc; optind++) {
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while ((c = getopt(argc, argv, DTRACE_OPTSTR)) != EOF) {
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while ((c = getopt(argc, argv, DTRACE_OPTSTR)) != -1) {
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switch (c) {
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case '3':
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if (strcmp(optarg, "2") != 0) {
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@ -1337,8 +1373,14 @@ main(int argc, char *argv[])
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dtrace_errmsg(NULL, err));
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}
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#if defined(__i386__)
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/* XXX The 32-bit seems to need more buffer space by default -sson */
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(void) dtrace_setopt(g_dtp, "bufsize", "12m");
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(void) dtrace_setopt(g_dtp, "aggsize", "12m");
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#else
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(void) dtrace_setopt(g_dtp, "bufsize", "4m");
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(void) dtrace_setopt(g_dtp, "aggsize", "4m");
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#endif
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/*
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* If -G is specified, enable -xlink=dynamic and -xunodefs to permit
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@ -1371,7 +1413,7 @@ main(int argc, char *argv[])
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* this time; these will compiled as part of the fourth processing pass.
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*/
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for (optind = 1; optind < argc; optind++) {
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while ((c = getopt(argc, argv, DTRACE_OPTSTR)) != EOF) {
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while ((c = getopt(argc, argv, DTRACE_OPTSTR)) != -1) {
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switch (c) {
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case 'a':
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if (dtrace_setopt(g_dtp, "grabanon", 0) != 0)
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@ -1528,7 +1570,7 @@ main(int argc, char *argv[])
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* may been affected by any library options set by the second pass.
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*/
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for (optind = 1; optind < argc; optind++) {
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while ((c = getopt(argc, argv, DTRACE_OPTSTR)) != EOF) {
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while ((c = getopt(argc, argv, DTRACE_OPTSTR)) != -1) {
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switch (c) {
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case 'c':
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if ((v = make_argv(optarg)) == NULL)
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@ -1616,10 +1658,21 @@ main(int argc, char *argv[])
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case DMODE_ANON:
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if (g_ofile == NULL)
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#if defined(sun)
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g_ofile = "/kernel/drv/dtrace.conf";
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#else
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/*
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* On FreeBSD, anonymous DOF data is written to
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* the DTrace DOF file that the boot loader will
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* read if booting with the DTrace option.
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*/
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g_ofile = "/boot/dtrace.dof";
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#endif
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dof_prune(g_ofile); /* strip out any old DOF directives */
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#if defined(sun)
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etcsystem_prune(); /* string out any forceload directives */
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#endif
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if (g_cmdc == 0) {
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dtrace_close(g_dtp);
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@ -1650,8 +1703,10 @@ main(int argc, char *argv[])
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* that itself contains a #pragma D option quiet.
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*/
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error("saved anonymous enabling in %s\n", g_ofile);
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#if defined(sun)
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etcsystem_add();
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error("run update_drv(1M) or reboot to enable changes\n");
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#endif
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dtrace_close(g_dtp);
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return (g_status);
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@ -1780,6 +1835,11 @@ main(int argc, char *argv[])
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if (sigaction(SIGTERM, NULL, &oact) == 0 && oact.sa_handler != SIG_IGN)
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(void) sigaction(SIGTERM, &act, NULL);
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#if !defined(sun)
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if (sigaction(SIGUSR1, NULL, &oact) == 0 && oact.sa_handler != SIG_IGN)
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(void) sigaction(SIGUSR1, &act, NULL);
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#endif
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/*
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* Now that tracing is active and we are ready to consume trace data,
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* continue any grabbed or created processes, setting them running
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