From: Matthew Malcomson <Matthew.Malcomson@arm.com>
To: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Cc: "mliska@suse.cz" <mliska@suse.cz>,
"dodji@redhat.com" <dodji@redhat.com>, nd <nd@arm.com>,
"kcc@google.com" <kcc@google.com>,
"jakub@redhat.com" <jakub@redhat.com>,
"dvyukov@google.com" <dvyukov@google.com>
Subject: [RFC][PATCH 7/X][libsanitizer] Add option to bootstrap using HWASAN
Date: Fri, 06 Sep 2019 14:46:00 -0000 [thread overview]
Message-ID: <VI1PR08MB5471C21D2F6C693093D05F97E0BA0@VI1PR08MB5471.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <156778058239.16148.17480879484406897649.scripted-patch-series@arm.com>
[-- Attachment #1: Type: text/plain, Size: 8705 bytes --]
This is an analogous option to --bootstrap-asan to configure. It allows
bootstrapping GCC using HWASAN.
For the same reasons as for ASAN we have to avoid using the HWASAN
sanitizer when compiling libiberty and the lto-plugin.
Also add a function to query whether -fsanitize=hwaddress has been
passed.
ChangeLog:
2019-08-29 Matthew Malcomson <matthew.malcomson@arm.com>
* configure: Regenerate.
* configure.ac: Add --bootstrap-hwasan option.
config/ChangeLog:
2019-09-06 Matthew Malcomson <matthew.malcomson@arm.com>
* bootstrap-hwasan.mk: New file.
gcc/ChangeLog:
2019-09-06 Matthew Malcomson <matthew.malcomson@arm.com>
* asan.c (memory_tagging_p): New function.
* asan.h (memory_tagging_p): New declaration.
libiberty/ChangeLog:
2019-09-06 Matthew Malcomson <matthew.malcomson@arm.com>
* configure: Regenerate.
* configure.ac: Avoid using sanitizer.
lto-plugin/ChangeLog:
2019-09-06 Matthew Malcomson <matthew.malcomson@arm.com>
* Makefile.am: Avoid using sanitizer.
* Makefile.in: Regenerate.
############### Attachment also inlined for ease of reply ###############
diff --git a/config/bootstrap-hwasan.mk b/config/bootstrap-hwasan.mk
new file mode 100644
index 0000000000000000000000000000000000000000..4f60bed3fd6e98b47a3a38aea6eba2a7c320da25
--- /dev/null
+++ b/config/bootstrap-hwasan.mk
@@ -0,0 +1,8 @@
+# This option enables -fsanitize=hwaddress for stage2 and stage3.
+
+STAGE2_CFLAGS += -fsanitize=hwaddress
+STAGE3_CFLAGS += -fsanitize=hwaddress
+POSTSTAGE1_LDFLAGS += -fsanitize=hwaddress -static-libhwasan \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/hwasan/ \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/hwasan/.libs
diff --git a/configure b/configure
index abd93a990a947f9e7f07d530d14f0ab8720ffa4c..b97737c857b4d6a02570f7007465a292b86c3936 100755
--- a/configure
+++ b/configure
@@ -754,6 +754,7 @@ infodir
docdir
oldincludedir
includedir
+runstatedir
localstatedir
sharedstatedir
sysconfdir
@@ -919,6 +920,7 @@ datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE}'
@@ -1171,6 +1173,15 @@ do
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
+ -runstatedir | --runstatedir | --runstatedi | --runstated \
+ | --runstate | --runstat | --runsta | --runst | --runs \
+ | --run | --ru | --r)
+ ac_prev=runstatedir ;;
+ -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+ | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+ | --run=* | --ru=* | --r=*)
+ runstatedir=$ac_optarg ;;
+
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1308,7 +1319,7 @@ fi
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
- libdir localedir mandir
+ libdir localedir mandir runstatedir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@@ -1468,6 +1479,7 @@ Fine tuning of the installation directories:
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
+ --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
@@ -7189,7 +7201,7 @@ fi
# or bootstrap-ubsan, bootstrap it.
if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
case "$BUILD_CONFIG" in
- *bootstrap-asan* | *bootstrap-ubsan* )
+ *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
bootstrap_fixincludes=yes
;;
diff --git a/configure.ac b/configure.ac
index 9db4fd14aa238f346dbe3ec1e7ef134741498048..836fd457c43f482bc80b2032954f4f98cd978a3e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2702,7 +2702,7 @@ fi
# or bootstrap-ubsan, bootstrap it.
if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
case "$BUILD_CONFIG" in
- *bootstrap-asan* | *bootstrap-ubsan* )
+ *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
bootstrap_fixincludes=yes
;;
diff --git a/gcc/asan.h b/gcc/asan.h
index 7675f18a84ee3f187ba4cb40db0ce232f3958762..66c11139b5ccbe307850d0be57e86f96445dd18d 100644
--- a/gcc/asan.h
+++ b/gcc/asan.h
@@ -33,7 +33,7 @@ extern bool asan_expand_check_ifn (gimple_stmt_iterator *, bool);
extern bool asan_expand_mark_ifn (gimple_stmt_iterator *);
extern bool asan_expand_poison_ifn (gimple_stmt_iterator *, bool *,
hash_map<tree, tree> &);
-
+extern bool memory_tagging_p (void);
extern gimple_stmt_iterator create_cond_insert_point
(gimple_stmt_iterator *, bool, bool, bool, basic_block *, basic_block *);
diff --git a/gcc/asan.c b/gcc/asan.c
index 3b800b26b6991c5a79116a7de838751b04db496a..42e990675e740bd37dad0704fd34b7a04740121e 100644
--- a/gcc/asan.c
+++ b/gcc/asan.c
@@ -1351,6 +1351,15 @@ asan_redzone_buffer::flush_if_full (void)
flush_redzone_payload ();
}
+/* Returns whether we are tagging pointers and checking those tags on memory
+ access. This is true when checking with either in software or hardware
+ (hardware e.g. with the AArch64 memtag extension). */
+bool
+memory_tagging_p ()
+{
+ return sanitize_flags_p (SANITIZE_HWADDRESS);
+}
+
/* Insert code to protect stack vars. The prologue sequence should be emitted
directly, epilogue sequence returned. BASE is the register holding the
stack base, against which OFFSETS array offsets are relative to, OFFSETS
diff --git a/libiberty/configure b/libiberty/configure
index 7a34dabec32b0b383bd33f07811757335f4dd39c..cb2dd4ff5295598343cc18b3a79a86a778f2261d 100755
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -5261,6 +5261,7 @@ fi
NOASANFLAG=
case " ${CFLAGS} " in
*\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
+ *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
esac
diff --git a/libiberty/configure.ac b/libiberty/configure.ac
index f1ce76010c9acde79c5dc46686a78b2e2f19244e..043237628b79cbf37d07359b59c5ffe17a7a22ef 100644
--- a/libiberty/configure.ac
+++ b/libiberty/configure.ac
@@ -240,6 +240,7 @@ AC_SUBST(PICFLAG)
NOASANFLAG=
case " ${CFLAGS} " in
*\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
+ *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
esac
AC_SUBST(NOASANFLAG)
diff --git a/lto-plugin/Makefile.am b/lto-plugin/Makefile.am
index 28dc21014b2e86988fa88adabd63ce6092e18e02..34aa397d785e3cc9b6975de460d065900364c3ff 100644
--- a/lto-plugin/Makefile.am
+++ b/lto-plugin/Makefile.am
@@ -11,8 +11,8 @@ AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
AM_CFLAGS = @ac_lto_plugin_warn_cflags@
AM_LDFLAGS = @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
-override CFLAGS := $(filter-out -fsanitize=address,$(CFLAGS))
-override LDFLAGS := $(filter-out -fsanitize=address,$(LDFLAGS))
+override CFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(CFLAGS))
+override LDFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(LDFLAGS))
libexecsub_LTLIBRARIES = liblto_plugin.la
gcc_build_dir = @gcc_build_dir@
diff --git a/lto-plugin/Makefile.in b/lto-plugin/Makefile.in
index 8dd6e40ac9dddab39fe1752f9a70e6834ab3c926..7acfc047eff6f86f8d38287e6ffb6533c4c13500 100644
--- a/lto-plugin/Makefile.in
+++ b/lto-plugin/Makefile.in
@@ -672,8 +672,8 @@ uninstall-am: uninstall-libexecsubLTLIBRARIES
.PRECIOUS: Makefile
-override CFLAGS := $(filter-out -fsanitize=address,$(CFLAGS))
-override LDFLAGS := $(filter-out -fsanitize=address,$(LDFLAGS))
+override CFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(CFLAGS))
+override LDFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(LDFLAGS))
all-local: $(in_gcc_libs)
[-- Attachment #2: hwasan-implementation06.patch --]
[-- Type: text/plain, Size: 7361 bytes --]
diff --git a/config/bootstrap-hwasan.mk b/config/bootstrap-hwasan.mk
new file mode 100644
index 0000000000000000000000000000000000000000..4f60bed3fd6e98b47a3a38aea6eba2a7c320da25
--- /dev/null
+++ b/config/bootstrap-hwasan.mk
@@ -0,0 +1,8 @@
+# This option enables -fsanitize=hwaddress for stage2 and stage3.
+
+STAGE2_CFLAGS += -fsanitize=hwaddress
+STAGE3_CFLAGS += -fsanitize=hwaddress
+POSTSTAGE1_LDFLAGS += -fsanitize=hwaddress -static-libhwasan \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/hwasan/ \
+ -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/hwasan/.libs
diff --git a/configure b/configure
index abd93a990a947f9e7f07d530d14f0ab8720ffa4c..b97737c857b4d6a02570f7007465a292b86c3936 100755
--- a/configure
+++ b/configure
@@ -754,6 +754,7 @@ infodir
docdir
oldincludedir
includedir
+runstatedir
localstatedir
sharedstatedir
sysconfdir
@@ -919,6 +920,7 @@ datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE}'
@@ -1171,6 +1173,15 @@ do
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
+ -runstatedir | --runstatedir | --runstatedi | --runstated \
+ | --runstate | --runstat | --runsta | --runst | --runs \
+ | --run | --ru | --r)
+ ac_prev=runstatedir ;;
+ -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+ | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+ | --run=* | --ru=* | --r=*)
+ runstatedir=$ac_optarg ;;
+
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1308,7 +1319,7 @@ fi
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
- libdir localedir mandir
+ libdir localedir mandir runstatedir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@@ -1468,6 +1479,7 @@ Fine tuning of the installation directories:
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
+ --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
@@ -7189,7 +7201,7 @@ fi
# or bootstrap-ubsan, bootstrap it.
if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
case "$BUILD_CONFIG" in
- *bootstrap-asan* | *bootstrap-ubsan* )
+ *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
bootstrap_fixincludes=yes
;;
diff --git a/configure.ac b/configure.ac
index 9db4fd14aa238f346dbe3ec1e7ef134741498048..836fd457c43f482bc80b2032954f4f98cd978a3e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2702,7 +2702,7 @@ fi
# or bootstrap-ubsan, bootstrap it.
if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
case "$BUILD_CONFIG" in
- *bootstrap-asan* | *bootstrap-ubsan* )
+ *bootstrap-hwasan* | *bootstrap-asan* | *bootstrap-ubsan* )
bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
bootstrap_fixincludes=yes
;;
diff --git a/gcc/asan.h b/gcc/asan.h
index 7675f18a84ee3f187ba4cb40db0ce232f3958762..66c11139b5ccbe307850d0be57e86f96445dd18d 100644
--- a/gcc/asan.h
+++ b/gcc/asan.h
@@ -33,7 +33,7 @@ extern bool asan_expand_check_ifn (gimple_stmt_iterator *, bool);
extern bool asan_expand_mark_ifn (gimple_stmt_iterator *);
extern bool asan_expand_poison_ifn (gimple_stmt_iterator *, bool *,
hash_map<tree, tree> &);
-
+extern bool memory_tagging_p (void);
extern gimple_stmt_iterator create_cond_insert_point
(gimple_stmt_iterator *, bool, bool, bool, basic_block *, basic_block *);
diff --git a/gcc/asan.c b/gcc/asan.c
index 3b800b26b6991c5a79116a7de838751b04db496a..42e990675e740bd37dad0704fd34b7a04740121e 100644
--- a/gcc/asan.c
+++ b/gcc/asan.c
@@ -1351,6 +1351,15 @@ asan_redzone_buffer::flush_if_full (void)
flush_redzone_payload ();
}
+/* Returns whether we are tagging pointers and checking those tags on memory
+ access. This is true when checking with either in software or hardware
+ (hardware e.g. with the AArch64 memtag extension). */
+bool
+memory_tagging_p ()
+{
+ return sanitize_flags_p (SANITIZE_HWADDRESS);
+}
+
/* Insert code to protect stack vars. The prologue sequence should be emitted
directly, epilogue sequence returned. BASE is the register holding the
stack base, against which OFFSETS array offsets are relative to, OFFSETS
diff --git a/libiberty/configure b/libiberty/configure
index 7a34dabec32b0b383bd33f07811757335f4dd39c..cb2dd4ff5295598343cc18b3a79a86a778f2261d 100755
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -5261,6 +5261,7 @@ fi
NOASANFLAG=
case " ${CFLAGS} " in
*\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
+ *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
esac
diff --git a/libiberty/configure.ac b/libiberty/configure.ac
index f1ce76010c9acde79c5dc46686a78b2e2f19244e..043237628b79cbf37d07359b59c5ffe17a7a22ef 100644
--- a/libiberty/configure.ac
+++ b/libiberty/configure.ac
@@ -240,6 +240,7 @@ AC_SUBST(PICFLAG)
NOASANFLAG=
case " ${CFLAGS} " in
*\ -fsanitize=address\ *) NOASANFLAG=-fno-sanitize=address ;;
+ *\ -fsanitize=hwaddress\ *) NOASANFLAG=-fno-sanitize=hwaddress ;;
esac
AC_SUBST(NOASANFLAG)
diff --git a/lto-plugin/Makefile.am b/lto-plugin/Makefile.am
index 28dc21014b2e86988fa88adabd63ce6092e18e02..34aa397d785e3cc9b6975de460d065900364c3ff 100644
--- a/lto-plugin/Makefile.am
+++ b/lto-plugin/Makefile.am
@@ -11,8 +11,8 @@ AM_CPPFLAGS = -I$(top_srcdir)/../include $(DEFS)
AM_CFLAGS = @ac_lto_plugin_warn_cflags@
AM_LDFLAGS = @ac_lto_plugin_ldflags@
AM_LIBTOOLFLAGS = --tag=disable-static
-override CFLAGS := $(filter-out -fsanitize=address,$(CFLAGS))
-override LDFLAGS := $(filter-out -fsanitize=address,$(LDFLAGS))
+override CFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(CFLAGS))
+override LDFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(LDFLAGS))
libexecsub_LTLIBRARIES = liblto_plugin.la
gcc_build_dir = @gcc_build_dir@
diff --git a/lto-plugin/Makefile.in b/lto-plugin/Makefile.in
index 8dd6e40ac9dddab39fe1752f9a70e6834ab3c926..7acfc047eff6f86f8d38287e6ffb6533c4c13500 100644
--- a/lto-plugin/Makefile.in
+++ b/lto-plugin/Makefile.in
@@ -672,8 +672,8 @@ uninstall-am: uninstall-libexecsubLTLIBRARIES
.PRECIOUS: Makefile
-override CFLAGS := $(filter-out -fsanitize=address,$(CFLAGS))
-override LDFLAGS := $(filter-out -fsanitize=address,$(LDFLAGS))
+override CFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(CFLAGS))
+override LDFLAGS := $(filter-out -fsanitize=address -fsanitize=hwaddress,$(LDFLAGS))
all-local: $(in_gcc_libs)
next prev parent reply other threads:[~2019-09-06 14:46 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-06 14:46 [Patch 0/X] [WIP][RFC][libsanitizer] Introduce HWASAN to GCC Matthew Malcomson
2019-09-06 14:46 ` [RFC][PATCH 4/X][libsanitizer] Pass size and pointer info to error reporting functions Matthew Malcomson
2019-09-09 9:27 ` Martin Liška
2019-09-06 14:46 ` [RFC][PATCH 2/X][libsanitizer] Tie the hwasan library into our build system Matthew Malcomson
2019-09-06 14:46 ` [RFC][PATCH 3/X][libsanitizer] Allow compilation for HWASAN_WITH_INTERCEPTORS=OFF Matthew Malcomson
2019-09-09 9:27 ` Martin Liška
2019-09-06 14:46 ` [RFC][PATCH 5/X][libsanitizer] Introduce longjmp/setjmp interceptors to libhwasan Matthew Malcomson
2019-09-09 10:02 ` Martin Liška
2019-09-09 10:29 ` Matthew Malcomson
2019-09-09 10:49 ` Martin Liška
2019-09-06 14:46 ` [RFC][PATCH 8/X][libsanitizer] Ensure HWASAN required alignment for stack variables Matthew Malcomson
2019-09-06 14:46 ` Matthew Malcomson [this message]
2019-09-06 14:46 ` [RFC][PATCH 1/X][libsanitizer] Introduce libsanitizer to GCC tree Matthew Malcomson
2019-09-09 9:26 ` Martin Liška
2019-09-06 14:46 ` [RFC][PATCH 14/X][libsanitizer] Introduce HWASAN block-scope poisoning Matthew Malcomson
2019-09-06 14:47 ` [RFC][PATCH 12/X][libsanitizer] Check pointer tags match address tags Matthew Malcomson
2019-09-06 14:47 ` [RFC][PATCH 16/X][libsanitizer] Build libhwasan with interceptors Matthew Malcomson
2019-09-06 14:47 ` [RFC][PATCH 11/X][libsanitizer] Uncolour stack frame on function exit Matthew Malcomson
2019-09-06 14:47 ` [RFC][PATCH 15/X][libsanitizer] Add in MTE stubs Matthew Malcomson
2019-09-06 14:47 ` [RFC][PATCH 10/X][libsanitizer] Colour the shadow stack for each stack variable Matthew Malcomson
2019-09-06 14:47 ` [RFC][PATCH 13/X][libsanitizer] Instrument known builtin function calls Matthew Malcomson
2019-09-06 14:47 ` [RFC][PATCH 6/X][libsanitizer] Add -fsanitize=hwaddress flags Matthew Malcomson
2019-09-09 10:06 ` Martin Liška
2019-09-09 10:18 ` Matthew Malcomson
2019-09-09 10:20 ` Martin Liška
2019-09-06 14:47 ` [RFC][PATCH 9/X][libsanitizer] Put tags into each stack variable pointer Matthew Malcomson
2019-09-09 10:47 ` [Patch 0/X] [WIP][RFC][libsanitizer] Introduce HWASAN to GCC Martin Liška
2019-09-09 15:55 ` Matthew Malcomson
2019-09-10 1:06 ` Kostya Serebryany via gcc-patches
2019-09-11 11:53 ` Martin Liška
2019-09-11 16:37 ` Matthew Malcomson
2019-09-11 18:34 ` Evgenii Stepanov via gcc-patches
2019-09-23 8:02 ` Martin Liška
2019-10-23 11:02 ` Matthew Malcomson
2019-10-24 10:11 ` Martin Liška
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