Author: pfg
Date: Fri Dec 28 22:06:50 2012
New Revision: 244792
URL: http://svnweb.freebsd.org/changeset/base/244792
Log:
gcc: avoid generating negative values to DW_AT_byte_size.
The previous change was actually a NOP because size is
unsigned and compilers are dumb.
Submitted by: Christoph Mallon
MFC after: 1 week
Modified:
head/contrib/gcc/dwarf2out.c
Modified: head/contrib/gcc/dwarf2out.c
==============================================================================
--- head/contrib/gcc/dwarf2out.c Fri Dec 28 22:06:33 2012
(r244791)
+++ head/contrib/gcc/dwarf2out.c Fri Dec 28 22:06:50 2012
(r244792)
@@ -10814,7 +10814,7 @@ add_byte_size_attribute (dw_die_ref die,
indicates that the byte size of the entity in question is variable. We
have no good way of expressing this fact in Dwarf at the present time.
GCC/35998: Avoid passing negative sizes to Dtrace and gdb. */
- add_AT_unsigned (die, DW_AT_byte_size, (size > 0 ? size : 0));
+ add_AT_unsigned (die, DW_AT_byte_size, (size != (unsigned)-1 ? size : 0));
}
/* For a FIELD_DECL node which represents a bit-field, output an attribute
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