Port libvtv to Solaris

	libstdc++-v3:
	* acinclude.m4 (GLIBCXX_ENABLE_VTABLE_VERIFY) <solaris2*>: Use
	-Wl,-R in VTV_CXXLINKFLAGS.
	* configure: Regenerate.

	* testsuite/18_support/bad_exception/23591_thread-1.c: Use
	-fvtable-verify=none on Solaris 12+.

	libgcc:
	* Makefile.in (VTV_CFLAGS): New variable.
	(vtv_start$(objext), vtv_end$(objext), vtv_end$(objext))
	(vtv_start_preinit$(objext), vtv_end_preinit$(objext)): Use it.
	* config.host (*-*-solaris2*): Add t-crtstuff-pic to tmake_file.
	Add vtv_start.o, vtv_end.o, vtv_start_preinit.o, vtv_end_preinit.o
	to extra_parts if $enable_vtable_verify = yes.

	libvtv:
	* configure.tgt (*-*-solaris2.[1-9]*): Declare supported.
	* configure.ac: Call AC_USE_SYSTEM_EXTENSIONS.
	<*-*-solaris2*>: Check for init priority support.
	Check for getexecname, __fortify_fail, _obstack_begin.
	(VTV_NO_OBSTACK): New conditional.
	* configure: Regenerate.
	* Makefile.am [VTV_NO_OBSTACK] (obstack.c): Use new condition.
	Create empty config.h
	* Makefile.in: Regenerate.

	* vtv_rts.cc [HAVE_GETEXECNAME] (program_invocation_name): New
	variable.
	(read_section_offset_and_length) [HAVE_GETEXECNAME]: Set it.
	(dl_iterate_phdr_callback) [HAVE_GETEXECNAME]: Set it.

	(__fortify_fail): Wrap in HAVE___FORTIFY_FAIL
	[!HAVE___FORTIFY_FAIL]: Provide non-Cygwin implementation.

	(read_section_offset_and_length): Assert sh_size >= VTV_PAGE_SIZE.
	(iterate_modules): Fix typo.
	Use VTV_PAGE_SIZE.
	(dl_iterate_phdr_callback): Fix typo.
	Use VTV_PAGE_SIZE.
	(__VLTChangePermission): Fix typos.

	include:
	* vtv-change-permission.h (VTV_PAGE_SIZE) [__sun__ && __svr4__ &&
	__sparc__]: Define.

	gcc:
	* config/sol2.h (SUPPORTS_INIT_PRIORITY): Move up.
	(STARTFILE_VTV_SPEC, ENDFILE_VTV_SPEC): Define.
	(STARTFILE_SPEC): Use %(startfile_vtv).
	(ENDFILE_SPEC): Use %(endfile_vtv).
	(SUBTARGET_EXTRA_SPECS): Handle STARTFILE_VTV_SPEC,
	ENDFILE_VTV_SPEC.

	* gcc.c (LINK_COMMAND_SPEC): Move VTABLE_VERIFICATION_SPEC after %{L*}.

git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@230865 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 28 insertions, 8 deletions

diff --git a/gcc/config/sol2.h b/gcc/config/sol2.h
index 6bf0599feaa..1758b9158db 100644
--- a/gcc/config/sol2.h
+++ b/gcc/config/sol2.h
@@ -150,6 +150,10 @@ along with GCC; see the file COPYING3.  If not see
 #define MD_EXEC_PREFIX "/usr/ccs/bin/"
 #endif
 
+/* Enable constructor priorities if the configured linker supports it.  */
+#undef SUPPORTS_INIT_PRIORITY
+#define SUPPORTS_INIT_PRIORITY HAVE_INITFINI_ARRAY_SUPPORT
+
 #undef STARTFILE_ARCH_SPEC
 #define STARTFILE_ARCH_SPEC "%{ansi:values-Xc.o%s} \
 			    %{!ansi:values-Xa.o%s}"
@@ -162,6 +166,22 @@ along with GCC; see the file COPYING3.  If not see
 #define STARTFILE_CRTBEGIN_SPEC	"crtbegin.o%s"
 #endif
 
+#if SUPPORTS_INIT_PRIORITY
+#define STARTFILE_VTV_SPEC \
+  "%{fvtable-verify=none:%s; \
+     fvtable-verify=preinit:vtv_start_preinit.o%s; \
+     fvtable-verify=std:vtv_start.o%s}"
+
+#define ENDFILE_VTV_SPEC \
+  "%{fvtable-verify=none:%s; \
+     fvtable-verify=preinit:vtv_end_preinit.o%s; \
+     fvtable-verify=std:vtv_end.o%s}"
+#else
+#define STARTFILE_VTV_SPEC \
+  "%{fvtable-verify:%e-fvtable-verify is not supported in this configuration}"
+#define ENDFILE_VTV_SPEC ""
+#endif
+
 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.  */
 #undef STARTFILE_SPEC
 #ifdef HAVE_SOLARIS_CRTS
@@ -172,13 +192,15 @@ along with GCC; see the file COPYING3.  If not see
 			  %{p:%e-p is not supported; \
 			    pg:crtpg.o%s gmon.o%s; \
 			      :crtp.o%s}}} \
-			crti.o%s %(startfile_arch) %(startfile_crtbegin)"
+			crti.o%s %(startfile_arch) %(startfile_crtbegin) \
+			%(startfile_vtv)"
 #else
 #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
 			  %{p:mcrt1.o%s; \
                             pg:gcrt1.o%s gmon.o%s; \
                               :crt1.o%s}}} \
-			crti.o%s %(startfile_arch) %(startfile_crtbegin)"
+			crti.o%s %(startfile_arch) %(startfile_crtbegin) \
+			%(startfile_vtv)"
 #endif
 
 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
@@ -192,7 +214,7 @@ along with GCC; see the file COPYING3.  If not see
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC \
   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
-   %(endfile_arch) %(endfile_crtend) crtn.o%s"
+   %(endfile_arch) %(endfile_vtv) %(endfile_crtend) crtn.o%s"
 
 #undef LINK_ARCH32_SPEC_BASE
 #define LINK_ARCH32_SPEC_BASE \
@@ -267,12 +289,14 @@ along with GCC; see the file COPYING3.  If not see
 #define SUBTARGET_EXTRA_SPECS \
   { "startfile_arch",	 	STARTFILE_ARCH_SPEC },		\
   { "startfile_crtbegin",	STARTFILE_CRTBEGIN_SPEC },	\
+  { "startfile_vtv",		STARTFILE_VTV_SPEC },		\
   { "link_arch32",       	LINK_ARCH32_SPEC },		\
   { "link_arch64",       	LINK_ARCH64_SPEC },		\
   { "link_arch_default", 	LINK_ARCH_DEFAULT_SPEC },	\
   { "link_arch",	 	LINK_ARCH_SPEC },		\
   { "endfile_arch",	 	ENDFILE_ARCH_SPEC },		\
-  { "endfile_crtend",		ENDFILE_CRTEND_SPEC },	\
+  { "endfile_crtend",		ENDFILE_CRTEND_SPEC },		\
+  { "endfile_vtv",		ENDFILE_VTV_SPEC },		\
   SUBTARGET_CPU_EXTRA_SPECS
 
 /* C++11 programs need -lrt for nanosleep.  */
@@ -398,10 +422,6 @@ along with GCC; see the file COPYING3.  If not see
 #define NO_DBX_BNSYM_ENSYM 1
 #endif
 
-/* Enable constructor priorities if the configured linker supports it.  */
-#undef SUPPORTS_INIT_PRIORITY
-#define SUPPORTS_INIT_PRIORITY HAVE_INITFINI_ARRAY_SUPPORT
-
 /* Solaris has an implementation of __enable_execute_stack.  */
 #define HAVE_ENABLE_EXECUTE_STACK