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authorNick Clifton <nickc@redhat.com>2020-04-28 11:56:06 +0100
committerNick Clifton <nickc@redhat.com>2020-04-28 11:56:06 +0100
commit56b1e56d2c2fa7611dc87192f26aac1da9fc63df (patch)
tree58baa847df9decbfc2ba7034ae96f7ebb0b4e761 /libiberty
parent32d1f47a126567f24be18e7cadf5d2490968c986 (diff)
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Rebase libiberty source with latest changes from gcc.
PR 25876 PR demangler/94797 * cp-demangle.c (cplus_demangle_operators): Add ss <=> operator. * testsuite/demangle-expected: Add operator<=> test.
Diffstat (limited to 'libiberty')
-rw-r--r--libiberty/ChangeLog55
-rw-r--r--libiberty/Makefile.in5
-rw-r--r--libiberty/aclocal.m42
-rwxr-xr-xlibiberty/configure145
-rw-r--r--libiberty/configure.ac3
-rw-r--r--libiberty/cp-demangle.c1
-rw-r--r--libiberty/simple-object.c3
-rw-r--r--libiberty/testsuite/demangle-expected3
8 files changed, 196 insertions, 21 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index fd31323..3b61aac 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,38 +1,53 @@
+2020-04-27 Jakub Jelinek <jakub@redhat.com>
+
+ PR demangler/94797
+ * cp-demangle.c (cplus_demangle_operators): Add ss <=> operator.
+ * testsuite/demangle-expected: Add operator<=> test.
+
+2020-04-25 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR bootstrap/94739
+ * Makefile.in (COMPILE.c): Add @CET_HOST_FLAGS@.
+ (configure_deps): Add $(srcdir)/../config/cet.m4 and
+ $(srcdir)/../config/enable.m4.
+ * aclocal.m4: Include ../config/cet.m4 and ../config/enable.m4.
+ * configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
+ AC_SUBST(CET_HOST_FLAGS).
+ * configure: Regenerated.
+
+2020-03-05 Egeyar Bagcioglu <egeyar.bagcioglu@oracle.com>
+
+ * simple-object.c (handle_lto_debug_sections): Name
+ ".GCC.command.line" among debug sections to be copied over
+ from lto objects.
+
+2020-03-02 Nick Clifton <nickc@redhat.com>
+
+ * testsuite/demangle-expected: Update expected demangling of
+ enable_if pattern.
+
2020-03-02 H.J. Lu <hongjiu.lu@intel.com>
PR lto/93966
* simple-object.c (handle_lto_debug_sections): Also copy
.note.gnu.property section.
-2020-02-25 Andrew Burgess <andrew.burgess@embecosm.com>
+2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
- * rust-demangle.h: Removed.
+ PR libstdc++/79193
+ PR libstdc++/88999
- Import from gcc mainline:
- 2020-02-05 Andrew Burgess <andrew.burgess@embecosm.com>
+ * configure: Regenerated.
+
+2020-02-05 Andrew Burgess <andrew.burgess@embecosm.com>
* hashtab.c (htab_remove_elt): Make a parameter const.
(htab_remove_elt_with_hash): Likewise.
- 2020-01-23 Alexandre Oliva <oliva@adacore.com>
+2020-01-23 Alexandre Oliva <oliva@adacore.com>
* argv.c (writeargv): Output empty args as "".
- 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
-
- * cp-demangle.c (cplus_demangle_operators): Add the co_await
- operator.
- * testsuite/demangle-expected: Test co_await operator mangling.
-
-2020-02-19 Andrew Burgess <andrew.burgess@embecosm.com>
-
- * configure: Regenerate.
-
-2020-01-17 Nick Clifton <nickc@redhat.com>
-
- * testsuite/demangle-expected: Update expected demangling of
- enable_if pattern.
-
2020-01-01 Jakub Jelinek <jakub@redhat.com>
Update copyright years.
diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
index fe738d0..d6b302e 100644
--- a/libiberty/Makefile.in
+++ b/libiberty/Makefile.in
@@ -112,7 +112,8 @@ installcheck: installcheck-subdir
INCDIR=$(srcdir)/$(MULTISRCTOP)../include
COMPILE.c = $(CC) -c @DEFS@ $(CFLAGS) $(CPPFLAGS) -I. -I$(INCDIR) \
- $(HDEFINES) @ac_libiberty_warn_cflags@ -D_GNU_SOURCE
+ $(HDEFINES) @ac_libiberty_warn_cflags@ -D_GNU_SOURCE \
+ @CET_HOST_FLAGS@
# Just to make sure we don't use a built-in rule with VPATH
.c.$(objext):
@@ -481,6 +482,8 @@ config.status: $(srcdir)/configure
AUTOCONF = autoconf
configure_deps = $(srcdir)/aclocal.m4 \
$(srcdir)/../config/acx.m4 \
+ $(srcdir)/../config/cet.m4 \
+ $(srcdir)/../config/enable.m4 \
$(srcdir)/../config/no-executables.m4 \
$(srcdir)/../config/override.m4 \
$(srcdir)/../config/picflag.m4 \
diff --git a/libiberty/aclocal.m4 b/libiberty/aclocal.m4
index bf8a907..34c0a5b 100644
--- a/libiberty/aclocal.m4
+++ b/libiberty/aclocal.m4
@@ -1,4 +1,6 @@
sinclude(../config/acx.m4)
+sinclude(../config/cet.m4)
+sinclude(../config/enable.m4)
sinclude(../config/no-executables.m4)
sinclude(../config/override.m4)
sinclude(../config/picflag.m4)
diff --git a/libiberty/configure b/libiberty/configure
index d2413f1..2b52ce8 100755
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -626,6 +626,7 @@ pexecute
target_header_dir
CHECK
LIBOBJS
+CET_HOST_FLAGS
NOASANFLAG
PICFLAG
INSTALL_DATA
@@ -710,6 +711,7 @@ enable_maintainer_mode
enable_multilib
enable_install_libiberty
enable_largefile
+enable_cet
'
ac_precious_vars='build_alias
host_alias
@@ -1337,6 +1339,7 @@ Optional Features:
--enable-multilib build many library versions (default)
--enable-install-libiberty Install headers and library for end users
--disable-largefile omit support for large files
+ --enable-cet enable Intel CET in host libraries [default=auto]
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
@@ -5264,6 +5267,148 @@ case " ${CFLAGS} " in
esac
+ # Check whether --enable-cet was given.
+if test "${enable_cet+set}" = set; then :
+ enableval=$enable_cet;
+ case "$enableval" in
+ yes|no|auto) ;;
+ *) as_fn_error $? "Unknown argument to enable/disable cet" "$LINENO" 5 ;;
+ esac
+
+else
+ enable_cet=auto
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CET support" >&5
+$as_echo_n "checking for CET support... " >&6; }
+
+case "$host" in
+ i[34567]86-*-linux* | x86_64-*-linux*)
+ may_have_cet=yes
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fcf-protection"
+ case "$enable_cet" in
+ auto)
+ # Check if target supports multi-byte NOPs
+ # and if assembler supports CET insn.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+#if !defined(__SSE2__)
+#error target does not support multi-byte NOPs
+#else
+asm ("setssbsy");
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ enable_cet=yes
+else
+ enable_cet=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ ;;
+ yes)
+ # Check if assembler supports CET.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+asm ("setssbsy");
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+ as_fn_error $? "assembler with CET support is required for --enable-cet" "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ ;;
+ esac
+ CFLAGS="$save_CFLAGS"
+ ;;
+ *)
+ may_have_cet=no
+ enable_cet=no
+ ;;
+esac
+
+if test x$may_have_cet = xyes; then
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,-z,ibt,-z,shstk"
+ if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+static void
+foo (void)
+{
+}
+
+static void
+__attribute__ ((noinline, noclone))
+xxx (void (*f) (void))
+{
+ f ();
+}
+
+static void
+__attribute__ ((noinline, noclone))
+bar (void)
+{
+ xxx (foo);
+}
+
+int
+main ()
+{
+ bar ();
+ return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ have_cet=no
+else
+ have_cet=yes
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ LDFLAGS="$save_LDFLAGS"
+ if test x$enable_cet = xno -a x$have_cet = xyes; then
+ as_fn_error $? "Intel CET must be enabled on Intel CET enabled host" "$LINENO" 5
+ fi
+fi
+if test x$enable_cet = xyes; then
+ CET_HOST_FLAGS="-fcf-protection"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
echo "# Warning: this fragment is automatically generated" > temp-frag
if [ -n "${frag}" ] && [ -f "${frag}" ]; then
diff --git a/libiberty/configure.ac b/libiberty/configure.ac
index f1ce760..4e2599c 100644
--- a/libiberty/configure.ac
+++ b/libiberty/configure.ac
@@ -243,6 +243,9 @@ case " ${CFLAGS} " in
esac
AC_SUBST(NOASANFLAG)
+GCC_CET_HOST_FLAGS(CET_HOST_FLAGS)
+AC_SUBST(CET_HOST_FLAGS)
+
echo "# Warning: this fragment is automatically generated" > temp-frag
if [[ -n "${frag}" ]] && [[ -f "${frag}" ]]; then
diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
index fc55b7f..cbfb2f9 100644
--- a/libiberty/cp-demangle.c
+++ b/libiberty/cp-demangle.c
@@ -1860,6 +1860,7 @@ const struct demangle_operator_info cplus_demangle_operators[] =
{ "sP", NL ("sizeof..."), 1 },
{ "sZ", NL ("sizeof..."), 1 },
{ "sc", NL ("static_cast"), 2 },
+ { "ss", NL ("<=>"), 2 },
{ "st", NL ("sizeof "), 1 },
{ "sz", NL ("sizeof "), 1 },
{ "tr", NL ("throw"), 0 },
diff --git a/libiberty/simple-object.c b/libiberty/simple-object.c
index e6c466a..92f5698 100644
--- a/libiberty/simple-object.c
+++ b/libiberty/simple-object.c
@@ -301,6 +301,9 @@ handle_lto_debug_sections (const char *name, int rename)
COMDAT sections in objects produced by GCC. */
else if (strcmp (name, ".comment") == 0)
return strcpy (newname, name);
+ /* Copy over .GCC.command.line section under the same name if present. */
+ else if (strcmp (name, ".GCC.command.line") == 0)
+ return strcpy (newname, name);
free (newname);
return NULL;
}
diff --git a/libiberty/testsuite/demangle-expected b/libiberty/testsuite/demangle-expected
index ccadf84..d8e5095 100644
--- a/libiberty/testsuite/demangle-expected
+++ b/libiberty/testsuite/demangle-expected
@@ -1453,3 +1453,6 @@ void foo<(void*)0>(enable_if<((void*)0)==(decltype(nullptr)), void>::type*)
_ZNK5coro15emptyawEv
coro1::empty::operator co_await() const
+
+_ZNK3FoossERKS_
+Foo::operator<=>(Foo const&) const