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* ia64-tdep.c (ia64_convert_from_func_ptr_addr): New variable buf.
	Check first the descriptor memory is readable.
This commit is contained in:
Jan Kratochvil 2009-09-29 16:27:05 +00:00
parent 94454bb4c9
commit e453266f58
2 changed files with 11 additions and 3 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2009-09-29 Jan Kratochvil <jan.kratochvil@redhat.com>
* ia64-tdep.c (ia64_convert_from_func_ptr_addr): New variable buf.
Check first the descriptor memory is readable.
2009-09-29 Tom Tromey <tromey@redhat.com>
* python/py-value.c (valpy_string): NULL-terminate 'keywords'.

9
gdb/ia64-tdep.c
View file

@ -3510,6 +3510,7 @@ ia64_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr,
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct obj_section *s;
gdb_byte buf[8];
s = find_pc_section (addr);
@ -3520,10 +3521,12 @@ ia64_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr,
/* Normally, functions live inside a section that is executable.
So, if ADDR points to a non-executable section, then treat it
as a function descriptor and return the target address iff
the target address itself points to a section that is executable. */
if (s && (s->the_bfd_section->flags & SEC_CODE) == 0)
the target address itself points to a section that is executable.
Check first the memory of the whole length of 8 bytes is readable. */
if (s && (s->the_bfd_section->flags & SEC_CODE) == 0
&& target_read_memory (addr, buf, 8) == 0)
{
CORE_ADDR pc = read_memory_unsigned_integer (addr, 8, byte_order);
CORE_ADDR pc = extract_unsigned_integer (buf, 8, byte_order);
struct obj_section *pc_section = find_pc_section (pc);
if (pc_section && (pc_section->the_bfd_section->flags & SEC_CODE))