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Date:      Tue, 19 Feb 2008 23:13:49 GMT
From:      John Birrell <jb@FreeBSD.org>
To:        Perforce Change Reviews <perforce@freebsd.org>
Subject:   PERFORCE change 135754 for review
Message-ID:  <200802192313.m1JNDnCa036295@repoman.freebsd.org>

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http://perforce.freebsd.org/chv.cgi?CH=135754

Change 135754 by jb@jb_freebsd1 on 2008/02/19 23:13:11

	Add hook variables for the CTF data arrays and ensure that
	the memory gets freed with other stuff.

Affected files ...

.. //depot/projects/dtrace/src/sys/kern/link_elf.c#16 edit
.. //depot/projects/dtrace/src/sys/kern/link_elf_obj.c#13 edit

Differences ...

==== //depot/projects/dtrace/src/sys/kern/link_elf.c#16 (text+ko) ====

@@ -63,6 +63,10 @@
 
 #include <sys/link_elf.h>
 
+#ifdef DDB_CTF
+#include <net/zlib.h>
+#endif
+
 #include "linker_if.h"
 
 #define MAXSEGS 4
@@ -101,6 +105,9 @@
     caddr_t		strbase;	/* malloc'ed string base */
     caddr_t		ctftab;		/* CTF table */
     long		ctfcnt;		/* number of bytes in CTF table */
+    caddr_t		ctfoff;		/* CTF offset table */
+    caddr_t		typoff;		/* Type offset table */
+    long		typlen;		/* Number of type entries. */
 #ifdef GDB
     struct link_map	gdb;		/* hooks for gdb */
 #endif
@@ -127,7 +134,7 @@
 				int (*)(const char *, void *),
 				void *);
 static int	link_elf_each_function_nameval(linker_file_t,
-				int (*)(linker_file_t, linker_symval_t*, void *),
+				linker_function_nameval_callback_t,
 				void *);
 static void	link_elf_reloc_local(linker_file_t);
 static Elf_Addr	elf_lookup(linker_file_t lf, Elf_Size symidx, int deps);
@@ -917,6 +924,10 @@
 	free(ef->strbase, M_LINKER);
     if (ef->ctftab)
 	free(ef->ctftab, M_LINKER);
+    if (ef->ctfoff)
+	free(ef->ctfoff, M_LINKER);
+    if (ef->typoff)
+	free(ef->typoff, M_LINKER);
 }
 
 static void
@@ -1236,7 +1247,7 @@
 
 static int
 link_elf_each_function_nameval(linker_file_t file,
-    int (*callback)(linker_file_t, linker_symval_t *, void *), void *opaque)
+    linker_function_nameval_callback_t callback, void *opaque)
 {
 	linker_symval_t symval;
 	elf_file_t ef = (elf_file_t)file;
@@ -1250,7 +1261,7 @@
 			error = link_elf_symbol_values(file, (c_linker_sym_t) symp, &symval);
 			if (error)
 				return (error);
-			error = callback(file, &symval, opaque);
+			error = callback(file, i, &symval, opaque);
 			if (error)
 				return (error);
 		}

==== //depot/projects/dtrace/src/sys/kern/link_elf_obj.c#13 (text+ko) ====

@@ -58,6 +58,10 @@
 
 #include <sys/link_elf.h>
 
+#ifdef DDB_CTF
+#include <net/zlib.h>
+#endif
+
 #include "linker_if.h"
 
 typedef struct {
@@ -108,6 +112,9 @@
 
 	caddr_t		ctftab;		/* CTF table */
 	long		ctfcnt;		/* number of bytes in CTF table */
+	caddr_t		ctfoff;		/* CTF offset table */
+	caddr_t		typoff;		/* Type offset table */
+	long		typlen;		/* Number of type entries. */
 
 } *elf_file_t;
 
@@ -130,7 +137,7 @@
 static int	link_elf_each_function_name(linker_file_t,
 		    int (*)(const char *, void *), void *);
 static int	link_elf_each_function_nameval(linker_file_t,
-				int (*)(linker_file_t, linker_symval_t*, void *),
+				linker_function_nameval_callback_t,
 				void *);
 static void	link_elf_reloc_local(linker_file_t);
 
@@ -823,6 +830,10 @@
 			free(ef->progtab, M_LINKER);
 		if (ef->ctftab)
 			free(ef->ctftab, M_LINKER);
+		if (ef->ctfoff)
+			free(ef->ctfoff, M_LINKER);
+		if (ef->typoff)
+			free(ef->typoff, M_LINKER);
 		if (file->filename != NULL)
 			preload_delete_name(file->filename);
 		/* XXX reclaim module memory? */
@@ -857,6 +868,10 @@
 		free(ef->shstrtab, M_LINKER);
 	if (ef->ctftab)
 		free(ef->ctftab, M_LINKER);
+	if (ef->ctfoff)
+		free(ef->ctfoff, M_LINKER);
+	if (ef->typoff)
+		free(ef->typoff, M_LINKER);
 }
 
 static const char *
@@ -1080,7 +1095,7 @@
 
 static int
 link_elf_each_function_nameval(linker_file_t file,
-    int (*callback)(linker_file_t, linker_symval_t *, void *), void *opaque)
+    linker_function_nameval_callback_t callback, void *opaque)
 {
 	linker_symval_t symval;
 	elf_file_t ef = (elf_file_t)file;
@@ -1094,7 +1109,7 @@
 			error = link_elf_symbol_values(file, (c_linker_sym_t) symp, &symval);
 			if (error)
 				return (error);
-			error = callback(file, &symval, opaque);
+			error = callback(file, i, &symval, opaque);
 			if (error)
 				return (error);
 		}



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