1 files changed, 292 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-6.4/0042-gcc-libcpp-support-ffile-prefix-map-old-new.patch b/meta/recipes-devtools/gcc/gcc-6.4/0042-gcc-libcpp-support-ffile-prefix-map-old-new.patch
new file mode 100644
index 0000000000..861f0fd7f1
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-6.4/0042-gcc-libcpp-support-ffile-prefix-map-old-new.patch
@@ -0,0 +1,292 @@
+From ba738cc411c9a54e389e336bcaa0a2428dd4a9d2 Mon Sep 17 00:00:00 2001
+From: Hongxu Jia <hongxu.jia@windriver.com>
+Date: Wed, 16 Mar 2016 02:27:43 -0400
+Subject: [PATCH 42/46] gcc/libcpp: support -ffile-prefix-map=<old>=<new>
+
+Similar -fdebug-prefix-map, add option -ffile-prefix-map to map one
+directory name (old) to another (new) in __FILE__, __BASE_FILE__ and
+__builtin_FILE ().
+
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70268
+
+Upstream-Status: Submitted [gcc-patches@gcc.gnu.org]
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ gcc/c-family/c-opts.c     | 13 +++++++
+ gcc/c-family/c.opt        |  4 +++
+ gcc/dwarf2out.c           |  1 +
+ gcc/gimplify.c            |  3 ++
+ libcpp/Makefile.in        | 10 +++---
+ libcpp/file-map.c         | 92 +++++++++++++++++++++++++++++++++++++++++++++++
+ libcpp/include/file-map.h | 30 ++++++++++++++++
+ libcpp/macro.c            |  2 ++
+ 8 files changed, 150 insertions(+), 5 deletions(-)
+ create mode 100644 libcpp/file-map.c
+ create mode 100644 libcpp/include/file-map.h
+
+diff --git a/gcc/c-family/c-opts.c b/gcc/c-family/c-opts.c
+index fec58bc..7a0af43 100644
+--- a/gcc/c-family/c-opts.c
++++ b/gcc/c-family/c-opts.c
+@@ -38,6 +38,14 @@ along with GCC; see the file COPYING3.  If not see
+ #include "opts.h"
+ #include "plugin.h"            /* For PLUGIN_INCLUDE_FILE event.  */
+ #include "mkdeps.h"
++#include "file-map.h"
++#include "c-target.h"
++#include "tm.h"                        /* For BYTES_BIG_ENDIAN,
++                                  DOLLARS_IN_IDENTIFIERS,
++                                  STDC_0_IN_SYSTEM_HEADERS,
++                                  TARGET_FLT_EVAL_METHOD_NON_DEFAULT and
++                                  TARGET_OPTF.  */
++#include "tm_p.h"              /* For C_COMMON_OVERRIDE_OPTIONS.  */
+ #include "dumpfile.h"
+ 
+ #ifndef DOLLARS_IN_IDENTIFIERS
+@@ -503,6 +511,11 @@ c_common_handle_option (size_t scode, const char *arg, int value,
+       cpp_opts->narrow_charset = arg;
+       break;
+ 
++    case OPT_ffile_prefix_map_:
++      if (add_file_prefix_map (arg) < 0)
++        error ("invalid argument %qs to -ffile-prefix-map", arg);
++      break;
++
+     case OPT_fwide_exec_charset_:
+       cpp_opts->wide_charset = arg;
+       break;
+diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
+index 660da6c..31f7b34 100644
+--- a/gcc/c-family/c.opt
++++ b/gcc/c-family/c.opt
+@@ -1208,6 +1208,10 @@ fexec-charset=
+ C ObjC C++ ObjC++ Joined RejectNegative
+ -fexec-charset=<cset>  Convert all strings and character constants to character set <cset>.
+ 
++ffile-prefix-map=
++C ObjC C++ ObjC++ Joined RejectNegative
++-ffile-prefix-map=<old=new>    Map one directory name to another in __FILE__, __BASE_FILE__ and __builtin_FILE ()
++
+ fextended-identifiers
+ C ObjC C++ ObjC++
+ Permit universal character names (\\u and \\U) in identifiers.
+diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
+index 80f2df5..a2bfcc0 100644
+--- a/gcc/dwarf2out.c
++++ b/gcc/dwarf2out.c
+@@ -21672,6 +21672,7 @@ gen_producer_string (void)
+       case OPT_fltrans_output_list_:
+       case OPT_fresolution_:
+       case OPT_fdebug_prefix_map_:
++      case OPT_ffile_prefix_map_:
+        /* Ignore these.  */
+        continue;
+       default:
+diff --git a/gcc/gimplify.c b/gcc/gimplify.c
+index e223e59..1433c25 100644
+--- a/gcc/gimplify.c
++++ b/gcc/gimplify.c
+@@ -57,6 +57,8 @@ along with GCC; see the file COPYING3.  If not see
+ #include "gomp-constants.h"
+ #include "tree-dump.h"
+ #include "gimple-walk.h"
++#include "file-map.h"
++
+ #include "langhooks-def.h"     /* FIXME: for lhd_set_decl_assembler_name */
+ #include "builtins.h"
+ 
+@@ -2432,6 +2434,7 @@ gimplify_call_expr (tree *expr_p, gimple_seq *pre_p, bool want_value)
+       case BUILT_IN_FILE:
+        {
+          const char *locfile = LOCATION_FILE (EXPR_LOCATION (*expr_p));
++         locfile = remap_file_filename (locfile);
+          *expr_p = build_string_literal (strlen (locfile) + 1, locfile);
+          return GS_OK;
+        }
+diff --git a/libcpp/Makefile.in b/libcpp/Makefile.in
+index a7d7828..3d29572 100644
+--- a/libcpp/Makefile.in
++++ b/libcpp/Makefile.in
+@@ -84,12 +84,12 @@ DEPMODE = $(CXXDEPMODE)
+ 
+ 
+ libcpp_a_OBJS = charset.o directives.o directives-only.o errors.o \
+-       expr.o files.o identifiers.o init.o lex.o line-map.o macro.o \
+-       mkdeps.o pch.o symtab.o traditional.o
++       expr.o file-map.o files.o identifiers.o init.o lex.o line-map.o \
++       macro.o mkdeps.o pch.o symtab.o traditional.o
+ 
+ libcpp_a_SOURCES = charset.c directives.c directives-only.c errors.c \
+-       expr.c files.c identifiers.c init.c lex.c line-map.c macro.c \
+-       mkdeps.c pch.c symtab.c traditional.c
++       expr.c file-map.c files.c identifiers.c init.c lex.c line-map.c \
++       macro.c mkdeps.c pch.c symtab.c traditional.c
+ 
+ all: libcpp.a $(USED_CATALOGS)
+ 
+@@ -263,7 +263,7 @@ po/$(PACKAGE).pot: $(libcpp_a_SOURCES)
+ 
+ TAGS_SOURCES = $(libcpp_a_SOURCES) internal.h ucnid.h \
+     include/line-map.h include/symtab.h include/cpp-id-data.h \
+-    include/cpplib.h include/mkdeps.h system.h
++    include/cpplib.h include/mkdeps.h system.h include/file-map.h
+ 
+ TAGS: $(TAGS_SOURCES)
+        cd $(srcdir) && etags $(TAGS_SOURCES)
+diff --git a/libcpp/file-map.c b/libcpp/file-map.c
+new file mode 100644
+index 0000000..18035ef
+--- /dev/null
++++ b/libcpp/file-map.c
+@@ -0,0 +1,92 @@
++/* Map one directory name to another in __FILE__, __BASE_FILE__
++   and __builtin_FILE ().
++   Copyright (C) 2001-2016 Free Software Foundation, Inc.
++
++This program is free software; you can redistribute it and/or modify it
++under the terms of the GNU General Public License as published by the
++Free Software Foundation; either version 3, or (at your option) any
++later version.
++
++This program 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 General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with this program; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.
++
++ In other words, you are welcome to use, share and improve this program.
++ You are forbidden to forbid anyone else to use, share and improve
++ what you give them.   Help stamp out software-hoarding!  */
++
++#include "config.h"
++#include "system.h"
++#include "file-map.h"
++
++/* Structure recording the mapping from source file and directory
++   names at compile time to __FILE__ */
++typedef struct file_prefix_map
++{
++  const char *old_prefix;
++  const char *new_prefix;
++  size_t old_len;
++  size_t new_len;
++  struct file_prefix_map *next;
++} file_prefix_map;
++
++/* Linked list of such structures.  */
++static file_prefix_map *file_prefix_maps;
++
++/* Record prefix mapping of __FILE__.  ARG is the argument to
++   -ffile-prefix-map and must be of the form OLD=NEW.  */
++int
++add_file_prefix_map (const char *arg)
++{
++  file_prefix_map *map;
++  const char *p;
++
++  p = strchr (arg, '=');
++  if (!p)
++  {
++      fprintf(stderr, "invalid argument %qs to -ffile-prefix-map", arg);
++      return -1;
++  }
++  map = XNEW (file_prefix_map);
++  map->old_prefix = xstrndup (arg, p - arg);
++  map->old_len = p - arg;
++  p++;
++  map->new_prefix = xstrdup (p);
++  map->new_len = strlen (p);
++  map->next = file_prefix_maps;
++  file_prefix_maps = map;
++
++  return 0;
++}
++
++/* Perform user-specified mapping of __FILE__ prefixes.  Return
++   the new name corresponding to filename.  */
++
++const char *
++remap_file_filename (const char *filename)
++{
++  file_prefix_map *map;
++  char *s;
++  const char *name;
++  size_t name_len;
++
++  for (map = file_prefix_maps; map; map = map->next)
++    if (filename_ncmp (filename, map->old_prefix, map->old_len) == 0)
++      break;
++  if (!map)
++    return filename;
++  name = filename + map->old_len;
++  name_len = strlen (name) + 1;
++  s = (char *) alloca (name_len + map->new_len);
++  memcpy (s, map->new_prefix, map->new_len);
++  memcpy (s + map->new_len, name, name_len);
++
++  return xstrdup (s);
++}
++
++
+diff --git a/libcpp/include/file-map.h b/libcpp/include/file-map.h
+new file mode 100644
+index 0000000..8750315
+--- /dev/null
++++ b/libcpp/include/file-map.h
+@@ -0,0 +1,30 @@
++/* Map one directory name to another in __FILE__, __BASE_FILE__
++   and __builtin_FILE ().
++   Copyright (C) 2001-2016 Free Software Foundation, Inc.
++
++This program is free software; you can redistribute it and/or modify it
++under the terms of the GNU General Public License as published by the
++Free Software Foundation; either version 3, or (at your option) any
++later version.
++
++This program 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 General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with this program; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.
++
++ In other words, you are welcome to use, share and improve this program.
++ You are forbidden to forbid anyone else to use, share and improve
++ what you give them.   Help stamp out software-hoarding!  */
++
++#ifndef LIBCPP_FILE_MAP_H
++#define LIBCPP_FILE_MAP_H
++
++const char * remap_file_filename (const char *filename);
++
++int add_file_prefix_map (const char *arg);
++
++#endif /* !LIBCPP_FILE_MAP_H  */
+diff --git a/libcpp/macro.c b/libcpp/macro.c
+index c251553..3ceec3d 100644
+--- a/libcpp/macro.c
++++ b/libcpp/macro.c
+@@ -26,6 +26,7 @@ along with this program; see the file COPYING3.  If not see
+ #include "system.h"
+ #include "cpplib.h"
+ #include "internal.h"
++#include "file-map.h"
+ 
+ typedef struct macro_arg macro_arg;
+ /* This structure represents the tokens of a macro argument.  These
+@@ -301,6 +302,7 @@ _cpp_builtin_macro_text (cpp_reader *pfile, cpp_hashnode *node,
+            if (!name)
+              abort ();
+          }
++       name = remap_file_filename (name);
+        len = strlen (name);
+        buf = _cpp_unaligned_alloc (pfile, len * 2 + 3);
+        result = buf;
+-- 
+2.8.2
+