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Check for a NULL sentinel value before using it.

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This commit is contained in:
Nick Clifton
2003-02-21 12:42:56 +00:00
parent 77c6dd379a
commit 887933998a
2 changed files with 11 additions and 3 deletions
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9
gprof/corefile.c
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@@ -1,6 +1,6 @@
/* corefile.c
Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of GNU Binutils.
@@ -736,13 +736,16 @@ core_create_line_syms (cbfd)
/* Update sentinels. */
sentinel = sym_lookup (&symtab, (bfd_vma) 0);
if (strcmp (sentinel->name, "<locore>") == 0
if (sentinel
&& strcmp (sentinel->name, "<locore>") == 0
&& min_vma <= sentinel->end_addr)
sentinel->end_addr = min_vma - 1;
sentinel = sym_lookup (&symtab, ~(bfd_vma) 0);
if (strcmp (sentinel->name, "<hicore>") == 0 && max_vma >= sentinel->addr)
if (sentinel
&& strcmp (sentinel->name, "<hicore>") == 0
&& max_vma >= sentinel->addr)
sentinel->addr = max_vma + 1;
/* Copy in function symbols. */