[Crash-utility] [PATCH 1/2] sparc64 changes for gdb-7.6
Originally by Karl Volz <karl.volz(a)oracle.com>
---
gdb-7.6.patch | 37 +++++++++++++++++++++++++++++++++++++
1 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/gdb-7.6.patch b/gdb-7.6.patch
index 5bd9b0c..8b2d5c8 100644
--- a/gdb-7.6.patch
+++ b/gdb-7.6.patch
@@ -2044,3 +2044,40 @@ diff -up gdb-7.6/bfd/elf64-ppc.c.orig gdb-7.6/bfd/elf64-ppc.c
{
struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
+diff -up gdb-7.6/gdb/dwarf2read.c.old gdb-7.6/gdb/dwarf2read.c
+--- gdb-7.6/gdb/dwarf2read.c.old 2014-02-11 10:29:01.668110122 -0800
++++ gdb-7.6/gdb/dwarf2read.c 2014-02-11 14:13:30.257151330 -0800
+@@ -84,6 +84,10 @@ static int dwarf2_read_debug = 0;
+ /* When non-zero, dump DIEs after they are read in. */
+ static unsigned int dwarf2_die_debug = 0;
+
++#if defined(__sparc__) && __WORDSIZE == 64
++static int pagesize;
++#endif
++
+ /* When non-zero, cross-check physname against demangler. */
+ static int check_physname = 0;
+
+@@ -1932,9 +1936,21 @@ dwarf2_read_section (struct objfile *obj
+
+ abfd = sectp->owner;
+
++#if defined(__sparc__) && __WORDSIZE == 64
++ if (pagesize == 0)
++ pagesize = getpagesize ();
++#endif
++
+ /* If the section has relocations, we must read it ourselves.
+- Otherwise we attach it to the BFD. */
++ Otherwise we attach it to the BFD.
++ Also, in sparc64 only try mmap for sections which
++ are properly aligned in order to avoid SIGBUS errors. */
++
++#if defined(__sparc__) && __WORDSIZE == 64
++ if (info->size > 4 * pagesize && (sectp->flags & SEC_RELOC) == 0
&& !(sectp->filepos & 0x3))
++#else
+ if ((sectp->flags & SEC_RELOC) == 0)
++#endif
+ {
+ const gdb_byte *bytes = gdb_bfd_map_section (sectp, &info->size);
+
--
1.7.1