components/gdb/patches/gdb.procfs.c.patch
author April Chin <april.chin@oracle.com>
Fri, 15 Jul 2016 07:22:25 -0700
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permissions -rw-r--r--
22928258 update gdb to 7.11 20745970 need to investigate if gdb tests can be added to Makefile test target
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# Patch required for Solaris.
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# Will contribute upstream if possible; if so, may need to #ifdef SOLARIS.
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--- gdb-7.11-orig/gdb/procfs.c	Tue Feb  9 19:19:39 2016
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+++ gdb-7.11/gdb/procfs.c	Thu Mar 10 13:12:47 2016
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@@ -158,21 +158,34 @@
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 		   gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp)
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 {
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   enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ());
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+  const int sizeof_auxv_field = sizeof (void *);
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   gdb_byte *ptr = *readptr;
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   if (endptr == ptr)
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     return 0;
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-  if (endptr - ptr < 8 * 2)
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+  if (endptr - ptr < sizeof_auxv_field * 2)
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     return -1;
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-  *typep = extract_unsigned_integer (ptr, 4, byte_order);
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-  ptr += 8;
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+  /*
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+   * On 64 bit Solaris SPARC, i.e. big endian, the type will be in
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+   * the left 4 bytes for 32 bit processes and the right 4 bytes
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+   * for 64 bit processes.  The padding is 0.
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+   */
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+  if ((sizeof_auxv_field == 8) && (byte_order == BFD_ENDIAN_BIG)) {
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+    if (*typep == 0)
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+      *typep = extract_unsigned_integer (ptr + 4, 4, byte_order);
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+  } else
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+    *typep = extract_unsigned_integer (ptr, sizeof_auxv_field , byte_order);
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+
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+  ptr += sizeof_auxv_field;
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+
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   /* The size of data is always 64-bit.  If the application is 32-bit,
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      it will be zero extended, as expected.  */
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-  *valp = extract_unsigned_integer (ptr, 8, byte_order);
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-  ptr += 8;
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+  *valp = extract_unsigned_integer (ptr, sizeof_auxv_field, byte_order);
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+  ptr += sizeof_auxv_field;
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+
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   *readptr = ptr;
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   return 1;
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 }
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@@ -341,7 +354,7 @@
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 #  define AS_PROC_NAME_FMT     "/proc/%d/as"
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 #  define MAP_PROC_NAME_FMT    "/proc/%d/map"
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 #  define STATUS_PROC_NAME_FMT "/proc/%d/status"
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-#  define MAX_PROC_NAME_SIZE sizeof("/proc/99999/lwp/8096/lstatus")
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+#  define MAX_PROC_NAME_SIZE sizeof("/proc/012345679/lwp/0123456789/lstatus")
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 # endif
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 /* the name of the proc status struct depends on the implementation */
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 typedef pstatus_t   gdb_prstatus_t;
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@@ -349,11 +362,11 @@
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 #else /* ! NEW_PROC_API */
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 /* format strings for /proc paths */
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 # ifndef CTL_PROC_NAME_FMT
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-#  define MAIN_PROC_NAME_FMT   "/proc/%05d"
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-#  define CTL_PROC_NAME_FMT    "/proc/%05d"
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-#  define AS_PROC_NAME_FMT     "/proc/%05d"
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-#  define MAP_PROC_NAME_FMT    "/proc/%05d"
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-#  define STATUS_PROC_NAME_FMT "/proc/%05d"
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+#  define MAIN_PROC_NAME_FMT   "/proc/%06d"
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+#  define CTL_PROC_NAME_FMT    "/proc/%06d"
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+#  define AS_PROC_NAME_FMT     "/proc/%06d"
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+#  define MAP_PROC_NAME_FMT    "/proc/%06d"
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+#  define STATUS_PROC_NAME_FMT "/proc/%06d"
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 #  define MAX_PROC_NAME_SIZE sizeof("/proc/ttttppppp")
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 # endif
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 /* The name of the proc status struct depends on the implementation.  */