erts: Improve hipe load/upgrade/purge machinery

A step toward better integration of hipe load and purge

Highlights:

* code_server no longer needs to call hipe_unified_loader:post_beam_load/1
  Instead new internal function hipe_redirect_to_module()
  is called by loading BIFs to patch native call sites if needed.

* hipe_purge_module() is called by erts_internal:purge_module/2
  to purge any native code.

* struct hipe_mfa_info redesigned and only used for exported
  functions that are called from or implemented by native code.
  A list of native call sites (struct hipe_ref) are kept for each hipe_mfa_info.

* struct hipe_sdesc used by hipe_find_mfa_from_ra()
  to build native stack traces.

1 files changed, 10 insertions, 0 deletions

diff --git a/erts/emulator/hipe/hipe_ppc.c b/erts/emulator/hipe/hipe_ppc.c
index 9b2048c457..a1a6e2ad02 100644
--- a/erts/emulator/hipe/hipe_ppc.c
+++ b/erts/emulator/hipe/hipe_ppc.c
@@ -214,6 +214,11 @@ void *hipe_alloc_code(Uint nrbytes, Eterm callees, Eterm *trampolines, Process *
     return address;
 }
 
+void hipe_free_code(void* code, unsigned int bytes)
+{
+    /*SVERK: Leaking code memory */
+}
+
 static unsigned int *alloc_stub(Uint nrwords)
 {
     unsigned int *address;
@@ -241,6 +246,11 @@ static unsigned int *alloc_stub(Uint nrwords)
     return address;
 }
 
+void hipe_free_native_stub(void* stub)
+{
+    /*SVERK: Leaking code stubs */
+}
+
 static void patch_imm16(Uint32 *address, unsigned int imm16)
 {
     unsigned int insn = *address;