Implement missing heap-intercept function "dh_malloc_usable_size".

sewardj · sewardj · commit 7d7c0cba8f50 · 2014-11-14T10:13:49.000Z
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14721 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/exp-dhat/dh_main.c b/exp-dhat/dh_main.c
@@ -671,12 +671,11 @@ static void* dh_realloc ( ThreadId tid, void* p_old, SizeT new_szB )
 
 static SizeT dh_malloc_usable_size ( ThreadId tid, void* p )
 {                                                            
-   tl_assert(0);
-//zz   HP_Chunk* hc = VG_(HT_lookup)( malloc_list, (UWord)p );
-//zz
-//zz   return ( hc ? hc->req_szB + hc->slop_szB : 0 );
+   Block* bk = find_Block_containing( (Addr)p );
+   return bk ? bk->req_szB : 0;
 }                                                            
 
+
 //------------------------------------------------------------//
 //--- memory references                                    ---//
 //------------------------------------------------------------//

Original file line number	Diff line number	Diff line change
`@@ -671,12 +671,11 @@ static void* dh_realloc ( ThreadId tid, void* p_old, SizeT new_szB )`
`671`	`671`
`672`	`672`	`static SizeT dh_malloc_usable_size ( ThreadId tid, void* p )`
`673`	`673`	`{`
`674`		`- tl_assert(0);`
`675`		`-//zz HP_Chunk* hc = VG_(HT_lookup)( malloc_list, (UWord)p );`
`676`		`-//zz`
`677`		`-//zz return ( hc ? hc->req_szB + hc->slop_szB : 0 );`
	`674`	`+ Block* bk = find_Block_containing( (Addr)p );`
	`675`	`+ return bk ? bk->req_szB : 0;`
`678`	`676`	`}`
`679`	`677`
	`678`	`+`
`680`	`679`	`//------------------------------------------------------------//`
`681`	`680`	`//--- memory references ---//`
`682`	`681`	`//------------------------------------------------------------//`