ENABLE_CHECKING in bfd, opcodes, binutils, ld

gas already has this.  Here it enables checking hash table type passed
to elf_link_hash_lookup and elf_link_hash_traverse.

bfd/
	* elf-bfd.h (ENABLE_CHECKING): Define.
	(elf_link_hash_lookup): Abort if wrong type of hash table.
	(elf_link_hash_traverse): Likewise.
	* configure.ac (--enable-checking): Add support.
	* config.in: Regenerate.
	* configure: Regenerate.
binutils/
	* configure.ac (--enable-checking): Add support.
	* config.in: Regenerate.
	* configure: Regenerate.
ld/
	* configure.ac (--enable-checking): Add support.
	* config.in: Regenerate.
	* configure: Regenerate.
opcodes/
	* configure.ac (--enable-checking): Add support.
	* config.in: Regenerate.
	* configure: Regenerate.

17 files changed, 178 insertions, 8 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 84f16fc2176..fa7e649c022 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,13 @@
 2021-04-12  Alan Modra  <amodra@gmail.com>
 
+	* elf-bfd.h (ENABLE_CHECKING): Define.
+	(elf_link_hash_lookup): Abort if wrong type of hash table.
+	* configure.ac (--enable-checking): Add support.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+
+2021-04-12  Alan Modra  <amodra@gmail.com>
+
 	* elf-bfd.h (is_elf_hash_table): Convert macro to inline function.
 	(elf_link_hash_lookup, elf_link_hash_traverse): Likewise.
 	(elf_hash_table, elf_hash_table_id): Likewise.
diff --git a/bfd/config.in b/bfd/config.in
index ba5ce68b337..6d46ea72a6c 100644
--- a/bfd/config.in
+++ b/bfd/config.in
@@ -14,6 +14,9 @@
    default. */
 #undef DEFAULT_LD_Z_SEPARATE_CODE
 
+/* Define if you want run-time sanity checks. */
+#undef ENABLE_CHECKING
+
 /* Define to 1 if translation of program messages to the user's native
    language is requested. */
 #undef ENABLE_NLS
diff --git a/bfd/configure b/bfd/configure
index adddec128d8..d98e330df8b 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -826,6 +826,7 @@ with_gnu_ld
 enable_libtool_lock
 enable_plugins
 enable_largefile
+enable_checking
 enable_64_bit_bfd
 enable_targets
 enable_64_bit_archive
@@ -1484,6 +1485,7 @@ Optional Features:
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --enable-plugins        Enable support for plugins
   --disable-largefile     omit support for large files
+  --enable-checking       enable run-time checks
   --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)
   --enable-targets        alternative target configurations
   --enable-64-bit-archive force 64-bit archives
@@ -11042,7 +11044,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11045 "configure"
+#line 11047 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11148,7 +11150,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11151 "configure"
+#line 11153 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11788,6 +11790,22 @@ else
 fi
 
 
+ac_checking=
+. ${srcdir}/development.sh
+test "$development" = true && ac_checking=yes
+# Check whether --enable-checking was given.
+if test "${enable_checking+set}" = set; then :
+  enableval=$enable_checking; case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac
+fi
+if test x$ac_checking != x ; then
+
+$as_echo "#define ENABLE_CHECKING 1" >>confdefs.h
+
+fi
+
 # Check whether --enable-64-bit-bfd was given.
 if test "${enable_64_bit_bfd+set}" = set; then :
   enableval=$enable_64_bit_bfd; case "${enableval}" in
diff --git a/bfd/configure.ac b/bfd/configure.ac
index c016fd087a4..07a75ed1626 100644
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -69,6 +69,19 @@ esac
 
 AM_CONDITIONAL(PLUGINS, test "$plugins" = "yes")
 
+ac_checking=
+. ${srcdir}/development.sh
+test "$development" = true && ac_checking=yes
+AC_ARG_ENABLE(checking,
+[  --enable-checking       enable run-time checks],
+[case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac])dnl
+if test x$ac_checking != x ; then
+  AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
+fi
+
 AC_ARG_ENABLE(64-bit-bfd,
 [  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
 [case "${enableval}" in
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index e0b7e5759ad..5a2f64233f9 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -27,6 +27,10 @@
 #include "elf/internal.h"
 #include "bfdlink.h"
 
+#ifndef ENABLE_CHECKING
+#define ENABLE_CHECKING 0
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -721,6 +725,8 @@ static inline struct elf_link_hash_entry *
 elf_link_hash_lookup (struct elf_link_hash_table *table, const char *string,
 		      bool create, bool copy, bool follow)
 {
+  if (ENABLE_CHECKING && !is_elf_hash_table (&table->root))
+    abort ();
   return (struct elf_link_hash_entry *)
     bfd_link_hash_lookup (&table->root, string, create, copy, follow);
 }
@@ -732,6 +738,8 @@ elf_link_hash_traverse (struct elf_link_hash_table *table,
 			bool (*f) (struct elf_link_hash_entry *, void *),
 			void *info)
 {
+  if (ENABLE_CHECKING && !is_elf_hash_table (&table->root))
+    abort ();
   bfd_link_hash_traverse (&table->root,
 			  (bool (*) (struct bfd_link_hash_entry *, void *)) f,
 			  info);
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 9e883739494..1dbb038fda6 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,9 @@
+2021-04-12  Alan Modra  <amodra@gmail.com>
+
+	* configure.ac (--enable-checking): Add support.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+
 2021-04-09  Alan Modra  <amodra@gmail.com>
 
 	* objdump.c (struct objdump_disasm_info): Delete dynrelbuf and
diff --git a/binutils/config.in b/binutils/config.in
index 78b8a51905c..cc6aad16ddd 100644
--- a/binutils/config.in
+++ b/binutils/config.in
@@ -19,6 +19,9 @@
 /* Should strings use -a behavior by default? */
 #undef DEFAULT_STRINGS_ALL
 
+/* Define if you want run-time sanity checks. */
+#undef ENABLE_CHECKING
+
 /* Handle .ctf type-info sections */
 #undef ENABLE_LIBCTF
 
diff --git a/binutils/configure b/binutils/configure
index 99583796603..938ef483698 100755
--- a/binutils/configure
+++ b/binutils/configure
@@ -817,6 +817,7 @@ with_gnu_ld
 enable_libtool_lock
 enable_plugins
 enable_largefile
+enable_checking
 enable_targets
 enable_deterministic_archives
 enable_default_strings_all
@@ -1481,6 +1482,7 @@ Optional Features:
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --enable-plugins        Enable support for plugins
   --disable-largefile     omit support for large files
+  --enable-checking       enable run-time checks
   --enable-targets        alternative target configurations
   --enable-deterministic-archives
                           ar and ranlib default to -D behavior
@@ -10872,7 +10874,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10875 "configure"
+#line 10877 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10978,7 +10980,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10981 "configure"
+#line 10983 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11583,6 +11585,22 @@ fi
 
 
 
+ac_checking=
+. ${srcdir}/../bfd/development.sh
+test "$development" = true && ac_checking=yes
+# Check whether --enable-checking was given.
+if test "${enable_checking+set}" = set; then :
+  enableval=$enable_checking; case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac
+fi
+if test x$ac_checking != x ; then
+
+$as_echo "#define ENABLE_CHECKING 1" >>confdefs.h
+
+fi
+
 # Check whether --enable-targets was given.
 if test "${enable_targets+set}" = set; then :
   enableval=$enable_targets; case "${enableval}" in
diff --git a/binutils/configure.ac b/binutils/configure.ac
index ad6d2aaefad..2553b809e6c 100644
--- a/binutils/configure.ac
+++ b/binutils/configure.ac
@@ -33,6 +33,19 @@ AC_USE_SYSTEM_EXTENSIONS
 LT_INIT
 ACX_LARGEFILE
 
+ac_checking=
+. ${srcdir}/../bfd/development.sh
+test "$development" = true && ac_checking=yes
+AC_ARG_ENABLE(checking,
+[  --enable-checking       enable run-time checks],
+[case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac])dnl
+if test x$ac_checking != x ; then
+  AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
+fi
+
 AC_ARG_ENABLE(targets,
 [  --enable-targets        alternative target configurations],
 [case "${enableval}" in
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 244f286a0a3..c862e8b13ae 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,11 @@
 2021-04-12  Alan Modra  <amodra@gmail.com>
 
+	* configure.ac (--enable-checking): Add support.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+
+2021-04-12  Alan Modra  <amodra@gmail.com>
+
 	* emultempl/mipself.em (mips_create_output_section_statements):
 	Pass base type of hash table to is_elf_hash_table.
 	* ldelf.c (ldelf_after_open): Likewise.
diff --git a/ld/config.in b/ld/config.in
index 1e78b00f96a..26d55a00d47 100644
--- a/ld/config.in
+++ b/ld/config.in
@@ -33,6 +33,9 @@
    */
 #undef DEFAULT_NEW_DTAGS
 
+/* Define if you want run-time sanity checks. */
+#undef ENABLE_CHECKING
+
 /* Handle .ctf type-info sections */
 #undef ENABLE_LIBCTF
 
diff --git a/ld/configure b/ld/configure
index d46fcefebe5..d8f8b2de18e 100755
--- a/ld/configure
+++ b/ld/configure
@@ -824,6 +824,7 @@ with_gnu_ld
 enable_libtool_lock
 enable_plugins
 enable_largefile
+enable_checking
 with_lib_path
 enable_targets
 enable_64_bit_bfd
@@ -1494,6 +1495,7 @@ Optional Features:
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --enable-plugins        Enable support for plugins
   --disable-largefile     omit support for large files
+  --enable-checking       enable run-time checks
   --enable-targets        alternative target configurations
   --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)
   --enable-gold[=ARG]     build gold [ARG={default,yes,no}]
@@ -11410,7 +11412,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11413 "configure"
+#line 11415 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11516,7 +11518,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11519 "configure"
+#line 11521 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -15127,6 +15129,22 @@ fi
 
 
 
+ac_checking=
+. ${srcdir}/../bfd/development.sh
+test "$development" = true && ac_checking=yes
+# Check whether --enable-checking was given.
+if test "${enable_checking+set}" = set; then :
+  enableval=$enable_checking; case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac
+fi
+if test x$ac_checking != x ; then
+
+$as_echo "#define ENABLE_CHECKING 1" >>confdefs.h
+
+fi
+
 
 # Check whether --with-lib-path was given.
 if test "${with_lib_path+set}" = set; then :
diff --git a/ld/configure.ac b/ld/configure.ac
index 5429f22ac23..8ea97c43cd4 100644
--- a/ld/configure.ac
+++ b/ld/configure.ac
@@ -37,6 +37,19 @@ AC_PROG_INSTALL
 LT_INIT
 ACX_LARGEFILE
 
+ac_checking=
+. ${srcdir}/../bfd/development.sh
+test "$development" = true && ac_checking=yes
+AC_ARG_ENABLE(checking,
+[  --enable-checking       enable run-time checks],
+[case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac])dnl
+if test x$ac_checking != x ; then
+  AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
+fi
+
 AC_ARG_WITH(lib-path, [  --with-lib-path=dir1:dir2...  set default LIB_PATH],LIB_PATH=$withval)
 AC_ARG_ENABLE(targets,
 [  --enable-targets        alternative target configurations],
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index d2b54352d98..f63eb479749 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,9 @@
+2021-04-12  Alan Modra  <amodra@gmail.com>
+
+	* configure.ac (--enable-checking): Add support.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+
 2021-04-09  Tejas Belagod  <tejas.belagod@arm.com>
 
 	* aarch64-tbl.h (struct aarch64_opcode aarch64_opcode_table): Reclassify
diff --git a/opcodes/config.in b/opcodes/config.in
index 9807dd75ca6..392cda5d0d9 100644
--- a/opcodes/config.in
+++ b/opcodes/config.in
@@ -7,6 +7,9 @@
 #endif
 #define __CONFIG_H__ 1
 
+/* Define if you want run-time sanity checks. */
+#undef ENABLE_CHECKING
+
 /* Define to 1 if translation of program messages to the user's native
    language is requested. */
 #undef ENABLE_NLS
diff --git a/opcodes/configure b/opcodes/configure
index 8fcdb5b3a65..922a939125b 100755
--- a/opcodes/configure
+++ b/opcodes/configure
@@ -799,6 +799,7 @@ with_pic
 enable_fast_install
 with_gnu_ld
 enable_libtool_lock
+enable_checking
 enable_targets
 enable_werror
 enable_build_warnings
@@ -1446,6 +1447,7 @@ Optional Features:
   --enable-fast-install[=PKGS]
                           optimize for fast installation [default=yes]
   --disable-libtool-lock  avoid locking (might break parallel builds)
+  --enable-checking       enable run-time checks
   --enable-targets        alternative target configurations
   --enable-werror         treat compile warnings as errors
   --enable-build-warnings enable build-time compiler warnings
@@ -10806,7 +10808,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10809 "configure"
+#line 10811 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10912,7 +10914,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10915 "configure"
+#line 10917 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11150,6 +11152,22 @@ CC="$lt_save_CC"
 
 
 
+ac_checking=
+. ${srcdir}/../bfd/development.sh
+test "$development" = true && ac_checking=yes
+# Check whether --enable-checking was given.
+if test "${enable_checking+set}" = set; then :
+  enableval=$enable_checking; case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac
+fi
+if test x$ac_checking != x ; then
+
+$as_echo "#define ENABLE_CHECKING 1" >>confdefs.h
+
+fi
+
 # Check whether --enable-targets was given.
 if test "${enable_targets+set}" = set; then :
   enableval=$enable_targets; case "${enableval}" in
diff --git a/opcodes/configure.ac b/opcodes/configure.ac
index 7cf0d2968b2..911c9c6f082 100644
--- a/opcodes/configure.ac
+++ b/opcodes/configure.ac
@@ -40,6 +40,19 @@ AC_DISABLE_SHARED
 
 LT_INIT
 
+ac_checking=
+. ${srcdir}/../bfd/development.sh
+test "$development" = true && ac_checking=yes
+AC_ARG_ENABLE(checking,
+[  --enable-checking       enable run-time checks],
+[case "${enableval}" in
+  no|none)  ac_checking= ;;
+  *)	    ac_checking=yes ;;
+esac])dnl
+if test x$ac_checking != x ; then
+  AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
+fi
+
 AC_ARG_ENABLE(targets,
 [  --enable-targets        alternative target configurations],
 [case "${enableval}" in