From: Julian Seward <jseward@acm.org>
Date: Sat, 14 Jul 2018 13:39:59 +0000 (+0200)
Subject: Add some initialisations that seemed to be required as a result of an LTO build with... 
X-Git-Tag: VALGRIND_3_14_0~87
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5b7b6662f240c455c5c3e109cd5aaad936731987;p=thirdparty%2Fvalgrind.git

Add some initialisations that seemed to be required as a result of an LTO build with a gcc 8 prerelease.
---

diff --git a/coregrind/m_coredump/coredump-elf.c b/coregrind/m_coredump/coredump-elf.c
index 98cf921b15..647338ace9 100644
--- a/coregrind/m_coredump/coredump-elf.c
+++ b/coregrind/m_coredump/coredump-elf.c
@@ -542,9 +542,12 @@ void dump_one_thread(struct note **notelist, const vki_siginfo_t *si, ThreadId t
 {
    vki_elf_fpregset_t  fpu;
    struct vki_elf_prstatus prstatus;
+   VG_(memset)(&fpu, 0, sizeof(fpu));
+   VG_(memset)(&prstatus, 0, sizeof(prstatus));
 #     if defined(VGP_x86_linux) && !defined(VGPV_x86_linux_android)
       {
          vki_elf_fpxregset_t xfpu;
+         VG_(memset)(&xfpu, 0, sizeof(xfpu));
          fill_xfpu(&VG_(threads)[tid], &xfpu);
          add_note(notelist, "LINUX", NT_PRXFPREG, &xfpu, sizeof(xfpu));
       }
diff --git a/coregrind/m_redir.c b/coregrind/m_redir.c
index 57a97a4796..660e696096 100644
--- a/coregrind/m_redir.c
+++ b/coregrind/m_redir.c
@@ -1185,8 +1185,10 @@ void VG_(redir_notify_delete_DebugInfo)( const DebugInfo* delsi )
 Addr VG_(redir_do_lookup) ( Addr orig, Bool* isWrap )
 {
    Active* r = VG_(OSetGen_Lookup)(activeSet, &orig);
-   if (r == NULL)
+   if (r == NULL) {
+      if (isWrap) *isWrap = False;
       return orig;
+   }
 
    vg_assert(r->to_addr != 0);
    if (isWrap)
diff --git a/drd/drd_error.c b/drd/drd_error.c
index b9e62f1309..622b344b16 100644
--- a/drd/drd_error.c
+++ b/drd/drd_error.c
@@ -159,7 +159,10 @@ void drd_report_data_race(const Error* const err,
    const HChar* const auxwhat_prefix = xml ? "  <auxwhat>" : "";
    const HChar* const auxwhat_suffix = xml ? "</auxwhat>" : "";
    const HChar* const indent = xml ? "  " : "";
+
    AddrInfo ai;
+   VG_(memset)(&ai, 0, sizeof(ai));
+   ai.akind = eUnknown; // A safe initial value (?)
 
    DiEpoch cur_ep = VG_(current_DiEpoch)();
    XArray* /* of HChar */ descr1