xnu-6153.81.5.tar.gz

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

diff --git a/bsd/sys/sdt_impl.h b/bsd/sys/sdt_impl.h
index e9531067c75acbd7518e99360f086932864d9e88..837e38c7411d2ee8e5b8a4e89626a88a9171746a 100644 (file)
--- a/bsd/sys/sdt_impl.h
+++ b/bsd/sys/sdt_impl.h
@@ -25,60 +25,41 @@
  */
 
 #ifndef _SDT_IMPL_H
-#define        _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
+#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 */
+       char                    *sdpd_name;     /* name of this probe */
+       char                    *sdpd_func;     /* APPLE NOTE: function name */
+       unsigned long           sdpd_offset;    /* offset of call in text */
+       struct sdt_probedesc    *sdpd_next;     /* next static probe */
 } sdt_probedesc_t;
 
-#ifdef __cplusplus
+#ifdef  __cplusplus
 }
 #endif
 
-/* #pragma ident       "@(#)sdt_impl.h 1.3     05/06/08 SMI" */
-
-#ifdef __cplusplus
+#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);
-#if defined (__APPLE__)
 extern uint64_t sdt_getarg(void *, dtrace_id_t, void *, int, int);
-#endif /* __APPLE__ */    
 
 void sdt_provide_module(void *, struct modctl *);
+void sdt_early_init(void);
 void sdt_init(void);
 
 extern int          sdt_probetab_size;
@@ -86,50 +67,53 @@ extern int          sdt_probetab_mask;
 #define SDT_ADDR2NDX(addr)  ((((uintptr_t)(addr)) >> 4) & sdt_probetab_mask)
 
 
-#if defined(__i386__) || defined(__x86_64__)
+#if defined(__x86_64__)
 typedef uint8_t sdt_instr_t;
+#elif defined(__arm__)
+typedef uint16_t sdt_instr_t;
+#elif defined(__arm64__)
+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 */
+       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 */
+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_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 */
+       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
+#ifdef  __cplusplus
 }
 #endif
 
-#endif /* _SDT_IMPL_H */
+#endif  /* _SDT_IMPL_H */