merge from gcc

6 files changed, 146 insertions, 1 deletions

diff --git a/include/ChangeLog b/include/ChangeLog
index 8853386..04326b2 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,12 @@
+2012-05-22  Doug Evans  <dje@google.com>
+
+	* leb128.h: New file.
+
+2012-05-19  Gary Funck  <gary@intrepid.com>
+
+	* dwarf2.def: Update comment re: UPC extensions to reference
+	DWARF4 specification.
+
 2012-05-15  James Murray <jsm@jsm-net.demon.co.uk>
 
 	* dis-asm.h (print_insn_m9s12x): Prototype.
diff --git a/include/dwarf2.def b/include/dwarf2.def
index e36ae91..870aecd 100644
--- a/include/dwarf2.def
+++ b/include/dwarf2.def
@@ -167,7 +167,7 @@ DW_TAG (DW_TAG_GNU_formal_parameter_pack, 0x4108)
    are properly part of DWARF 5.  */
 DW_TAG (DW_TAG_GNU_call_site, 0x4109)
 DW_TAG (DW_TAG_GNU_call_site_parameter, 0x410a)
-/* Extensions for UPC.  See: http://upc.gwu.edu/~upc.  */
+/* Extensions for UPC.  See: http://dwarfstd.org/doc/DWARF4.pdf.  */
 DW_TAG (DW_TAG_upc_shared_type, 0x8765)
 DW_TAG (DW_TAG_upc_strict_type, 0x8766)
 DW_TAG (DW_TAG_upc_relaxed_type, 0x8767)
diff --git a/include/leb128.h b/include/leb128.h
new file mode 100644
index 0000000..f0ff352
--- /dev/null
+++ b/include/leb128.h
@@ -0,0 +1,124 @@
+/* Utilities for reading leb128 values.
+   Copyright (C) 2012 Free Software Foundation, Inc.
+
+This file is part of the libiberty library.
+Libiberty is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libiberty is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libiberty; see the file COPYING.LIB.  If not, write
+to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+/* The functions defined here can be speed critical.
+   Since they are all pretty small we keep things simple and just define
+   them all as "static inline".  */
+
+#ifndef LEB128_H
+#define LEB128_H
+
+/* Get a definition for inline.  */
+#include "ansidecl.h"
+
+/* Get a definition for NULL, size_t.  */
+#include <stddef.h>
+
+/* Decode the unsigned LEB128 constant at BUF into the variable pointed to
+   by R, and return the number of bytes read.
+   If we read off the end of the buffer, zero is returned,
+   and nothing is stored in R.
+
+   Note: The result is an int instead of a pointer to the next byte to be
+   read to avoid const-vs-non-const problems.  */
+
+static inline size_t
+read_uleb128_to_ull (const unsigned char *buf, const unsigned char *buf_end,
+		     unsigned long long *r)
+{
+  const unsigned char *p = buf;
+  unsigned int shift = 0;
+  unsigned long long result = 0;
+  unsigned char byte;
+
+  while (1)
+    {
+      if (p >= buf_end)
+	return 0;
+
+      byte = *p++;
+      result |= ((unsigned long long) (byte & 0x7f)) << shift;
+      if ((byte & 0x80) == 0)
+	break;
+      shift += 7;
+    }
+
+  *r = result;
+  return p - buf;
+}
+
+/* Decode the signed LEB128 constant at BUF into the variable pointed to
+   by R, and return the number of bytes read.
+   If we read off the end of the buffer, zero is returned,
+   and nothing is stored in R.
+
+   Note: The result is an int instead of a pointer to the next byte to be
+   read to avoid const-vs-non-const problems.  */
+
+static inline size_t
+read_sleb128_to_ll (const unsigned char *buf, const unsigned char *buf_end,
+		    long long *r)
+{
+  const unsigned char *p = buf;
+  unsigned int shift = 0;
+  long long result = 0;
+  unsigned char byte;
+
+  while (1)
+    {
+      if (p >= buf_end)
+	return 0;
+
+      byte = *p++;
+      result |= ((unsigned long long) (byte & 0x7f)) << shift;
+      shift += 7;
+      if ((byte & 0x80) == 0)
+	break;
+    }
+  if (shift < (sizeof (*r) * 8) && (byte & 0x40) != 0)
+    result |= -(((unsigned long long) 1) << shift);
+
+  *r = result;
+  return p - buf;
+}
+
+/* Return the number of bytes to read to skip past an LEB128 number in BUF.
+   If the end isn't found before reaching BUF_END, return zero.
+
+   Note: The result is an int instead of a pointer to the next byte to be
+   read to avoid const-vs-non-const problems.  */
+
+static inline size_t
+skip_leb128 (const unsigned char *buf, const unsigned char *buf_end)
+{
+  const unsigned char *p = buf;
+  unsigned char byte;
+
+  while (1)
+    {
+      if (p == buf_end)
+	return 0;
+
+      byte = *p++;
+      if ((byte & 0x80) == 0)
+	return p - buf;
+    }
+}
+
+#endif /* LEB128_H */
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index eb37699..206a576 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,10 @@
+2012-05-22  Tom Tromey  <tromey@redhat.com>
+
+	http://sourceware.org/bugzilla/show_bug.cgi?id=14065
+	* testsuite/demangle-expected: Add regression test.
+	* cp-demangle.c (d_find_pack): Return NULL for
+	DEMANGLE_COMPONENT_UNNAMED_TYPE.
+
 2012-04-27  Tom Tromey  <tromey@redhat.com>
 
 	* dwarfnames.c: New file.
diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
index d95b56c..27cc323 100644
--- a/libiberty/cp-demangle.c
+++ b/libiberty/cp-demangle.c
@@ -3715,6 +3715,7 @@ d_find_pack (struct d_print_info *dpi,
     case DEMANGLE_COMPONENT_SUB_STD:
     case DEMANGLE_COMPONENT_CHARACTER:
     case DEMANGLE_COMPONENT_FUNCTION_PARAM:
+    case DEMANGLE_COMPONENT_UNNAMED_TYPE:
       return NULL;
 
     case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
diff --git a/libiberty/testsuite/demangle-expected b/libiberty/testsuite/demangle-expected
index d489692..58c1368 100644
--- a/libiberty/testsuite/demangle-expected
+++ b/libiberty/testsuite/demangle-expected
@@ -4266,3 +4266,7 @@ foo
 _Z1fIKFvvES0_Evv
 void f<void () const, void ()>()
 f<void () const, void ()>
+#
+--format=gnu-v3
+_ZN4modc6parser8sequenceINS_9astParser13LocatedParserINS0_9ParserRefINS2_UlRNS2_16TokenParserInputEE_EEEEEINS0_14OptionalParserINS2_18ListParserTemplateILNS_6tokens5Token4TypeE4EXadL_ZNSD_Ut_13parenthesizedEEEE6ParserINS4_INS0_6ParserIS5_NS_3ast10ExpressionEEEEEEEEENSA_INS4_INS2_22OneOfKeywordsToTParserINSJ_5StyleEEEEEEENS0_14SequenceParserIS5_INS0_18ExactElementParserIS5_EENSA_ISM_EEEEENS0_14RepeatedParserINS4_INS0_15TransformParserINSU_IS5_INS4_INSP_INSJ_10Annotation12RelationshipEEEEESX_EEENS2_UlNS2_3LocES12_ONS_5MaybeISK_EEE19_EEEEELb0EEEEEENSU_INS0_17ExtractParserTypeIT_E9InputTypeEINS0_8MaybeRefIS1F_E4TypeEDpNS1I_IT0_E4TypeEEEEOS1F_DpOS1L_
+modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> ><modc::parser::ExtractParserType<modc::astParser::LocatedParser<modc::parser::ParserRef<modc::astParser::{lambda(modc::astParser::TokenParserInput&)#1}> > >::InputType, modc::parser::MaybeRef<modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}>::Type, modc::parser::RepeatedParser<modc::parser::ParserRef<modc::parser::TransformParser<modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> ><modc::astParser::TokenParserInput<modc::parser::ParserRef<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > ><modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Annotation::Relationship> >, modc::parser::ExactElementParser> >, modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}> >, false><modc::parser::OptionalParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > > > >::Type, modc::parser::RepeatedParser<modc::parser::ParserRef<modc::parser::TransformParser<modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> ><modc::astParser::TokenParserInput<modc::parser::ParserRef<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > ><modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Annotation::Relationship> >, modc::parser::ExactElementParser> >, modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}> >, false><modc::astParser::LocatedParser<modc::parser::ParserRef<modc::astParser::{lambda(modc::astParser::TokenParserInput&)#1}> ><modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> > > >::Type, modc::parser::RepeatedParser<modc::parser::ParserRef<modc::parser::TransformParser<modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> ><modc::astParser::TokenParserInput<modc::parser::ParserRef<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > ><modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Annotation::Relationship> >, modc::parser::ExactElementParser> >, modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}> >, false><modc::parser::SequenceParser<modc::astParser::TokenParserInput<modc::parser::ExactElementParser<modc::astParser::TokenParserInput>, modc::astParser::LocatedParser<modc::parser::ParserRef<modc::astParser::{lambda(modc::astParser::TokenParserInput&)#1}> ><modc::ast::Expression> > > >::Type, modc::parser::RepeatedParser<modc::parser::ParserRef<modc::parser::TransformParser<modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> ><modc::astParser::TokenParserInput<modc::parser::ParserRef<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > ><modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Annotation::Relationship> >, modc::parser::ExactElementParser> >, modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}> >, false><modc::parser::RepeatedParser<modc::parser::ParserRef<modc::parser::TransformParser<modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> ><modc::astParser::TokenParserInput<modc::parser::ParserRef<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > ><modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Annotation::Relationship> >, modc::parser::ExactElementParser> >, modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}> >, false> >::Type> modc::parser::sequence<modc::astParser::LocatedParser<modc::parser::ParserRef<modc::astParser::{lambda(modc::astParser::TokenParserInput&)#1}> >, modc::parser::OptionalParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > > >, modc::astParser::LocatedParser<modc::parser::ParserRef<modc::astParser::{lambda(modc::astParser::TokenParserInput&)#1}> ><modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> > >, modc::parser::SequenceParser<modc::astParser::TokenParserInput<modc::parser::ExactElementParser<modc::astParser::TokenParserInput>, modc::astParser::LocatedParser<modc::parser::ParserRef<modc::astParser::{lambda(modc::astParser::TokenParserInput&)#1}> ><modc::ast::Expression> > >, modc::parser::RepeatedParser<modc::parser::ParserRef<modc::parser::TransformParser<modc::parser::ParserRef<modc::astParser::OneOfKeywordsToTParser<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Style> ><modc::astParser::TokenParserInput<modc::parser::ParserRef<modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser<modc::parser::ParserRef<modc::parser::Parser<modc::astParser::TokenParserInput, modc::ast::Expression> > ><modc::astParser::ListParserTemplate<(modc::tokens::Token::Type)4, &modc::tokens::{unnamed type#1}::parenthesized>::Parser::Annotation::Relationship> >, modc::parser::ExactElementParser> >, modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}> >, false> >(modc::astParser::{lambda(modc::astParser::Loc, modc::parser::RepeatedParser, modc::Maybe<modc::parser::Parser>&&)#21}&&, (modc::parser::ExtractParserType<modc::astParser::LocatedParser<modc::parser::ParserRef<modc::astParser::{lambda(modc::astParser::TokenParserInput&)#1}> > >&&)...)