Sync libiberty with upstream GCC.

include/ChangeLog
	* libiberty.h (PEX_STDOUT_APPEND): New flag.
	(PEX_STDERR_APPEND): Likewise.

	* demangle.h (DMGL_DLANG): New macro.
	(DMGL_STYLE_MASK): Add DMGL_DLANG.
	(demangling_styles): Add dlang_demangling.
	(DLANG_DEMANGLING_STYLE_STRING): New macro.
	(DLANG_DEMANGLING): New macro.
	(dlang_demangle): New prototype.

	* longlong.h: Add __udiv_w_sdiv prototype.

libiberty/ChangeLog
	* cp-demangle.c (d_substitution): Handle abi tags on abbreviation.

	* pex-common.h (struct pex_funcs): Add new parameter for open_write field.
	* pex-unix.c (pex_unix_open_write): Add support for new parameter.
	* pex-djgpp.c (pex_djgpp_open_write): Likewise.
	* pex-win32.c (pex_win32_open_write): Likewise.
	* pex-common.c (pex_run_in_environment): Likewise.

	* Makefile.in (CFILES): Add d-demangle.c.
	(REQUIRED_OFILES): Add d-demangle.o.
	* cplus-dem.c (libiberty_demanglers): Add dlang_demangling case.
	(cplus_demangle): Likewise.
	* d-demangle.c: New file.
	* testsuite/Makefile.in (really-check): Add check-d-demangle.
	* testsuite/d-demangle-expected: New file.

	* simple-object-elf.c (simple_object_elf_write_ehdr): Correctly
	handle objects with more than SHN_LORESERVE sections.
	(simple_object_elf_write_shdr): Add sh_link parameter.
	(simple_object_elf_write_to_file): Correctly handle objects with
	more than SHN_LORESERVE sections.

	* cp-demangle.c (d_dump): Only access field from s_fixed part of
	the union for DEMANGLE_COMPONENT_FIXED_TYPE.
	(d_count_templates_scopes): Likewise.

	* testsuite/demangler-fuzzer.c: New file.
	* testsuite/Makefile.in (fuzz-demangler): New rule.
	(demangler-fuzzer): Likewise.
	(mostlyclean): Clean up demangler fuzzer.

1 files changed, 13 insertions, 1 deletions

diff --git a/include/libiberty.h b/include/libiberty.h
index 78c42eb88f1..bcc1f9afaf7 100644
--- a/include/libiberty.h
+++ b/include/libiberty.h
@@ -106,7 +106,10 @@ extern int countargv (char**);
    to find the declaration so provide a fully prototyped one.  If it
    is 1, we found it so don't provide any declaration at all.  */
 #if !HAVE_DECL_BASENAME
-#if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined(__NetBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || defined (__MINGW32__) || defined (HAVE_DECL_BASENAME)
+#if defined (__GNU_LIBRARY__ ) || defined (__linux__) \
+ || defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__NetBSD__) \
+ || defined (__CYGWIN__) || defined (__CYGWIN32__) || defined (__MINGW32__) \
+ || defined (__DragonFly__) || defined (HAVE_DECL_BASENAME) 
 extern char *basename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1);
 #else
 /* Do not allow basename to be used if there is no prototype seen.  We
@@ -442,6 +445,11 @@ extern struct pex_obj *pex_init (int flags, const char *pname,
    on Unix.  */
 #define PEX_BINARY_ERROR	0x80
 
+/* Append stdout to existing file instead of truncating it.  */
+#define PEX_STDOUT_APPEND	0x100
+
+/* Thes same as PEX_STDOUT_APPEND, but for STDERR.  */
+#define PEX_STDERR_APPEND	0x200
 
 /* Execute one program.  Returns NULL on success.  On error returns an
    error string (typically just the name of a system call); the error
@@ -633,6 +641,10 @@ extern int snprintf (char *, size_t, const char *, ...) ATTRIBUTE_PRINTF_3;
 extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,0);
 #endif
 
+#if defined (HAVE_DECL_STRNLEN) && !HAVE_DECL_STRNLEN
+extern size_t strnlen (const char *, size_t);
+#endif
+
 #if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP
 /* Compare version strings.  */
 extern int strverscmp (const char *, const char *);