core: Pass stack change user requests on to tools

Since DRD tracks the lowest and highest stack address that has been used,
it needs to know about stack registration events. Hence pass on stack
registration events to tools.

diff --git a/coregrind/m_scheduler/scheduler.c b/coregrind/m_scheduler/scheduler.c
index 77f78ebbc7c2600f3e652285d10726d792fe15ae..dc22dca1765aab46acc74dee08c68c56834a9f3e 100644 (file)
--- a/coregrind/m_scheduler/scheduler.c
+++ b/coregrind/m_scheduler/scheduler.c
@@ -2050,6 +2050,7 @@ void do_client_request ( ThreadId tid )
       case VG_USERREQ__STACK_REGISTER: {
          UWord sid = VG_(register_stack)((Addr)arg[1], (Addr)arg[2]);
          SET_CLREQ_RETVAL( tid, sid );
+         VG_TRACK(register_stack, (Addr)arg[1], (Addr)arg[2]);
          break; }
 
       case VG_USERREQ__STACK_DEREGISTER: {

diff --git a/coregrind/m_tooliface.c b/coregrind/m_tooliface.c
index efa991debf5e932046b44c562b1867a5f3ed5c1e..cbafe47c5290d84b46aa01f9beea93db00fa980a 100644 (file)
--- a/coregrind/m_tooliface.c
+++ b/coregrind/m_tooliface.c
@@ -438,6 +438,8 @@ DEF0(track_die_mem_stack,         Addr, SizeT)
 
 DEF0(track_ban_mem_stack,         Addr, SizeT)
 
+DEF0(track_register_stack,        Addr, Addr)
+
 DEF0(track_pre_mem_read,          CorePart, ThreadId, const HChar*, Addr, SizeT)
 DEF0(track_pre_mem_read_asciiz,   CorePart, ThreadId, const HChar*, Addr)
 DEF0(track_pre_mem_write,         CorePart, ThreadId, const HChar*, Addr, SizeT)

diff --git a/coregrind/pub_core_tooliface.h b/coregrind/pub_core_tooliface.h
index 4da8cd29e9af36b1b4ca36805ec4bafe738676b8..5f75d499728967fe7c8da1b6c86e6886beca5cf1 100644 (file)
--- a/coregrind/pub_core_tooliface.h
+++ b/coregrind/pub_core_tooliface.h
@@ -226,6 +226,8 @@ typedef struct {
 
    void (*track_ban_mem_stack)(Addr, SizeT);
 
+   void (*track_register_stack)(Addr, Addr);
+
    void (*track_pre_mem_read)       (CorePart, ThreadId, const HChar*, Addr, SizeT);
    void (*track_pre_mem_read_asciiz)(CorePart, ThreadId, const HChar*, Addr);
    void (*track_pre_mem_write)      (CorePart, ThreadId, const HChar*, Addr, SizeT);

diff --git a/include/pub_tool_tooliface.h b/include/pub_tool_tooliface.h
index c7eef06eb1abbd3592adcbdf238bdf5a1d807752..62c99696129eade009b0be59237e5fbfcc6eadb7 100644 (file)
--- a/include/pub_tool_tooliface.h
+++ b/include/pub_tool_tooliface.h
@@ -609,6 +609,9 @@ void VG_(track_die_mem_stack)                  (void(*f)(Addr a, SizeT len));
 /* Used for redzone at end of thread stacks */
 void VG_(track_ban_mem_stack)      (void(*f)(Addr a, SizeT len));
 
+/* Used to report VG_USERREQ__STACK_REGISTER client requests */
+void VG_(track_register_stack)     (void(*f)(Addr start, Addr end));
+
 /* These ones occur around syscalls, signal handling, etc */
 void VG_(track_pre_mem_read)       (void(*f)(CorePart part, ThreadId tid,
                                              const HChar* s, Addr a, SizeT size));