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gcc: avoid generating negative values to DW_AT_byte_size.

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The previous change was actually a NOP because size is
unsigned and compilers are dumb.

Submitted by:	Christoph Mallon
MFC after:	1 week
This commit is contained in:
Pedro F. Giffuni 2012-12-28 22:06:50 +00:00
parent 955e0a6bd2
commit 833966f999
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=244792
1 changed files with 1 additions and 1 deletions
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contrib/gcc/dwarf2out.c
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@ -10814,7 +10814,7 @@ add_byte_size_attribute (dw_die_ref die, tree tree_node)
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