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Diffstat (limited to 'nptl_db/proc_service.h')
-rw-r--r--nptl_db/proc_service.h100
1 files changed, 57 insertions, 43 deletions
diff --git a/nptl_db/proc_service.h b/nptl_db/proc_service.h
index 9963c3aecd..d49e87ab30 100644
--- a/nptl_db/proc_service.h
+++ b/nptl_db/proc_service.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1999, 2002 Free Software Foundation, Inc.
+/* Callback interface for libthread_db, functions users must define.
+   Copyright (C) 1999,2002,2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,55 +20,68 @@
 /* The definitions in this file must correspond to those in the debugger.  */
 #include <sys/procfs.h>
 
+/* Functions in this interface return one of these status codes.  */
 typedef enum
 {
-  PS_OK,          /* generic "call succeeded" */
-  PS_ERR,         /* generic. */
-  PS_BADPID,      /* bad process handle */
-  PS_BADLID,      /* bad lwp identifier */
-  PS_BADADDR,     /* bad address */
-  PS_NOSYM,       /* p_lookup() could not find given symbol */
-        PS_NOFREGS
-  /*
-   * FPU register set not available for given
-   * lwp
-   */
-}       ps_err_e;
-
-
-struct ps_prochandle;		/* user defined. */
-
-
-extern ps_err_e ps_pdread(struct ps_prochandle *,
-                        psaddr_t, void *, size_t);
-extern ps_err_e ps_pdwrite(struct ps_prochandle *,
-                        psaddr_t, const void *, size_t);
-extern ps_err_e ps_ptread(struct ps_prochandle *,
-                        psaddr_t, void *, size_t);
-extern ps_err_e ps_ptwrite(struct ps_prochandle *,
-                        psaddr_t, const void *, size_t);
-
-extern ps_err_e ps_pglobal_lookup(struct ps_prochandle *,
-        const char *object_name, const char *sym_name, psaddr_t *sym_addr);
-
-
-extern ps_err_e ps_lgetregs(struct ps_prochandle *,
-                        lwpid_t, prgregset_t);
-extern ps_err_e ps_lsetregs(struct ps_prochandle *,
-                        lwpid_t, const prgregset_t);
-extern ps_err_e ps_lgetfpregs(struct ps_prochandle *,
-                        lwpid_t, prfpregset_t *);
-extern ps_err_e ps_lsetfpregs(struct ps_prochandle *,
-                        lwpid_t, const prfpregset_t *);
-
+  PS_OK,		/* Generic "call succeeded".  */
+  PS_ERR,		/* Generic error. */
+  PS_BADPID,		/* Bad process handle.  */
+  PS_BADLID,		/* Bad LWP identifier.  */
+  PS_BADADDR,		/* Bad address.  */
+  PS_NOSYM,		/* Could not find given symbol.  */
+  PS_NOFREGS		/* FPU register set not available for given LWP.  */
+} ps_err_e;
+
+
+/* This type is opaque in this interface.
+   It's defined by the user of libthread_db.  */
+struct ps_prochandle;
+
+
+/* Read or write process memory at the given address.  */
+extern ps_err_e ps_pdread (struct ps_prochandle *,
+			   psaddr_t, void *, size_t);
+extern ps_err_e ps_pdwrite (struct ps_prochandle *,
+			    psaddr_t, const void *, size_t);
+extern ps_err_e ps_ptread (struct ps_prochandle *,
+			   psaddr_t, void *, size_t);
+extern ps_err_e ps_ptwrite (struct ps_prochandle *,
+			    psaddr_t, const void *, size_t);
+
+
+/* Get and set the given LWP's general or FPU register set.  */
+extern ps_err_e ps_lgetregs (struct ps_prochandle *,
+			     lwpid_t, prgregset_t);
+extern ps_err_e ps_lsetregs (struct ps_prochandle *,
+			     lwpid_t, const prgregset_t);
+extern ps_err_e ps_lgetfpregs (struct ps_prochandle *,
+			       lwpid_t, prfpregset_t *);
+extern ps_err_e ps_lsetfpregs (struct ps_prochandle *,
+			       lwpid_t, const prfpregset_t *);
+
+/* Return the PID of the process.  */
 extern pid_t ps_getpid (struct ps_prochandle *);
 
+/* Fetch the special per-thread address associated with the given LWP.
+   This call is only used on a few platforms (most use a normal register).
+   The meaning of the `int' parameter is machine-dependent.  */
+extern ps_err_e ps_get_thread_area (const struct ps_prochandle *,
+				    lwpid_t, int, psaddr_t *);
+
+
+/* Look up the named symbol in the named DSO in the symbol tables
+   associated with the process being debugged, filling in *SYM_ADDR
+   with the corresponding run-time address.  */
+extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *,
+				   const char *object_name,
+				   const char *sym_name,
+				   psaddr_t *sym_addr);
 
+
+/* Stop or continue the entire process.  */
 extern ps_err_e ps_pstop (const struct ps_prochandle *);
 extern ps_err_e ps_pcontinue (const struct ps_prochandle *);
 
+/* Stop or continue the given LWP alone.  */
 extern ps_err_e ps_lstop (const struct ps_prochandle *, lwpid_t);
 extern ps_err_e ps_lcontinue (const struct ps_prochandle *, lwpid_t);
-
-extern ps_err_e ps_get_thread_area (const struct ps_prochandle *, lwpid_t,
-				    int, psaddr_t *);