xnu-1228.tar.gz

[apple/xnu.git] / bsd / sys / sdt_impl.h

diff --git a/bsd/sys/sdt_impl.h b/bsd/sys/sdt_impl.h
new file mode 100644 (file)
index 0000000..cbd117b
--- /dev/null
+++ b/bsd/sys/sdt_impl.h
@@ -0,0 +1,134 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (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 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SDT_IMPL_H
+#define        _SDT_IMPL_H
+
+/*
+ * This file has been created by splitting up the original DTrace sdt.h
+ * header. Keep the pragma notice here to allow version tracking.
+ */
+
+/* #pragma ident       "@(#)sdt.h      1.7     05/06/08 SMI" */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const char *sdt_prefix;
+
+typedef struct sdt_probedesc {
+       char                    *sdpd_name;     /* name of this probe */
+#if defined(__APPLE__)
+       char                    *sdpd_func;     
+#endif /* __APPLE__ */
+       unsigned long           sdpd_offset;    /* offset of call in text */
+       struct sdt_probedesc    *sdpd_next;     /* next static probe */
+} sdt_probedesc_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+/* #pragma ident       "@(#)sdt_impl.h 1.3     05/06/08 SMI" */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/dtrace.h>
+
+#if !defined(__APPLE__)
+#if defined(__i386) || defined(__amd64)
+typedef uint8_t sdt_instr_t;
+#else
+typedef uint32_t sdt_instr_t;
+#endif
+#else
+struct module {
+       int sdt_nprobes;
+       sdt_probedesc_t *sdt_probes;
+};
+
+extern int sdt_invop(uintptr_t, uintptr_t *, uintptr_t);
+
+void sdt_provide_module(void *, struct modctl *);
+void sdt_init(void);
+
+extern int          sdt_probetab_size;
+extern int          sdt_probetab_mask;
+#define SDT_ADDR2NDX(addr)  ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask)
+
+
+#if defined(__i386__) || defined(__x86_64__)
+typedef uint8_t sdt_instr_t;
+#elif defined(__ppc__) || defined(__ppc64__)
+typedef uint32_t sdt_instr_t;
+#else
+#error Unknown implementation
+#endif
+#endif /* __APPLE__ */
+
+typedef struct sdt_provider {
+       const char                      *sdtp_name;     /* name of provider */
+       const char                      *sdtp_prefix;   /* prefix for probe names */
+       dtrace_pattr_t          *sdtp_attr;     /* stability attributes */
+       dtrace_provider_id_t    sdtp_id;        /* provider ID */
+} sdt_provider_t;
+
+extern sdt_provider_t sdt_providers[];         /* array of providers */
+
+typedef struct sdt_probe {
+       sdt_provider_t  *sdp_provider;          /* provider */
+       char            *sdp_name;              /* name of probe */
+       int             sdp_namelen;            /* length of allocated name */
+       dtrace_id_t     sdp_id;                 /* probe ID */
+       struct modctl   *sdp_ctl;               /* modctl for module */
+       int             sdp_loadcnt;            /* load count for module */
+       int             sdp_primary;            /* non-zero if primary mod */
+       sdt_instr_t     *sdp_patchpoint;        /* patch point */
+       sdt_instr_t     sdp_patchval;           /* instruction to patch */
+       sdt_instr_t     sdp_savedval;           /* saved instruction value */
+       struct sdt_probe *sdp_next;             /* next probe */
+       struct sdt_probe *sdp_hashnext;         /* next on hash */
+} sdt_probe_t;
+
+typedef struct sdt_argdesc {
+       const char *sda_provider;               /* provider for arg */
+       const char *sda_name;                   /* name of probe */
+       const int sda_ndx;                      /* argument index */
+       const int sda_mapping;                  /* mapping of argument */
+       const char *sda_native;                 /* native type of argument */
+       const char *sda_xlate;                  /* translated type of arg */
+} sdt_argdesc_t;
+
+extern void sdt_getargdesc(void *, dtrace_id_t, void *, dtrace_argdesc_t *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SDT_IMPL_H */