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| author | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-03-14 21:07:22 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-03-14 21:07:22 +0100 |
| commit | de888d9027079b9a38b068a4c58a8563a4a4d600 (patch) | |
| tree | e82c884105511edf160c6ea4422ba0988d643447 /gcc | |
| parent | f4e749b49840f856b460fdf2a8e501d4436fbc16 (diff) | |
| download | gcc-de888d9027079b9a38b068a4c58a8563a4a4d600.zip gcc-de888d9027079b9a38b068a4c58a8563a4a4d600.tar.gz gcc-de888d9027079b9a38b068a4c58a8563a4a4d600.tar.bz2 | |
re PR debug/47946 (Dwarf uses 64-bits to refer to a structure offset unnecessarily)
PR debug/47946
* dwarf2out.c (add_bit_offset_attribute): If bit_offset is negative,
emit it as add_AT_int instead of add_AT_unsigned.
From-SVN: r170956
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/dwarf2out.c | 9 |
2 files changed, 13 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0c9102c..a9d4d62 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,10 @@ -2011-01-14 Tom Tromey <tromey@redhat.com> +2011-03-14 Jakub Jelinek <jakub@redhat.com> + + PR debug/47946 + * dwarf2out.c (add_bit_offset_attribute): If bit_offset is negative, + emit it as add_AT_int instead of add_AT_unsigned. + +2011-03-14 Tom Tromey <tromey@redhat.com> * unwind-dw2.c: Include sys/sdt.h if it exists. (_Unwind_DebugHook): Use STAP_PROBE2. diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index dfe1086..3319c61 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -1,6 +1,6 @@ /* Output Dwarf2 format symbol table information from GCC. Copyright (C) 1992, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, - 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 + 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. Contributed by Gary Funck (gary@intrepid.com). Derived from DWARF 1 implementation of Ron Guilmette (rfg@monkeys.com). @@ -17685,7 +17685,7 @@ add_bit_offset_attribute (dw_die_ref die, tree decl) HOST_WIDE_INT bitpos_int; HOST_WIDE_INT highest_order_object_bit_offset; HOST_WIDE_INT highest_order_field_bit_offset; - HOST_WIDE_INT unsigned bit_offset; + HOST_WIDE_INT bit_offset; /* Must be a field and a bit field. */ gcc_assert (type && TREE_CODE (decl) == FIELD_DECL); @@ -17718,7 +17718,10 @@ add_bit_offset_attribute (dw_die_ref die, tree decl) ? highest_order_object_bit_offset - highest_order_field_bit_offset : highest_order_field_bit_offset - highest_order_object_bit_offset); - add_AT_unsigned (die, DW_AT_bit_offset, bit_offset); + if (bit_offset < 0) + add_AT_int (die, DW_AT_bit_offset, bit_offset); + else + add_AT_unsigned (die, DW_AT_bit_offset, (unsigned HOST_WIDE_INT) bit_offset); } /* For a FIELD_DECL node which represents a bit field, output an attribute |