* [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
@ 2020-09-18 14:43 Alex Coplan
2020-09-22 12:42 ` Kyrylo Tkachov
2020-09-29 14:06 ` Richard Earnshaw (lists)
0 siblings, 2 replies; 6+ messages in thread
From: Alex Coplan @ 2020-09-18 14:43 UTC (permalink / raw)
To: newlib; +Cc: Richard Earnshaw
[-- Attachment #1: Type: text/plain, Size: 817 bytes --]
Hello,
This patch adds support for Armv8-R AArch64. We update the AArch64 CPU
boot code to work on Armv8-R if __ARM_ARCH_PROFILE is set to 'R'.
Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
code to set up the MPU for Armv8-R.
We also add a specs file for use with Armv8-R AArch64 models.
Testing:
* Ran AArch64 GCC testsuite using --with-arch=armv8-r together with the
new specs file and boot code in an Armv8-R AArch64 model.
* Ran newlib testsuite, no regressions.
OK for master?
Thanks,
Alex
---
2020-09-18 Alex Coplan <alex.coplan@arm.com>
libgloss/ChangeLog:
* aarch64/Makefile.in: Install new specs file.
* aarch64/cpu-init/Makefile.in: Also build boot code for Armv8-R.
* aarch64/cpu-init/rdimon-aem-el3.S: Add support for Armv8-R.
* aarch64/elf-aem-v8-r.specs: New.
[-- Attachment #2: patch.txt --]
[-- Type: text/plain, Size: 3270 bytes --]
diff --git a/libgloss/aarch64/Makefile.in b/libgloss/aarch64/Makefile.in
index 546557e3c..b8c2ca43c 100644
--- a/libgloss/aarch64/Makefile.in
+++ b/libgloss/aarch64/Makefile.in
@@ -85,7 +85,8 @@ RDIMON_BSP = librdimon${${MULTILIBNAME}}.a
RDIMON_OBJS = $(patsubst %,rdimon-%,$(OBJS))
RDIMON_SCRIPTS = rdimon${${MULTILIBNAME}}.specs \
aem-ve${${MULTILIBNAME}}.specs \
- aem-validation${${MULTILIBNAME}}.specs
+ aem-validation${${MULTILIBNAME}}.specs \
+ aem-v8-r${${MULTILIBNAME}}.specs
RDIMON_INSTALL = install-rdimon
CFLAGS = -g
diff --git a/libgloss/aarch64/cpu-init/Makefile.in b/libgloss/aarch64/cpu-init/Makefile.in
index 08aa1760f..3ada50d64 100644
--- a/libgloss/aarch64/cpu-init/Makefile.in
+++ b/libgloss/aarch64/cpu-init/Makefile.in
@@ -62,7 +62,7 @@ AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
-CPU_INIT_OBJS = rdimon-aem-el3.o
+CPU_INIT_OBJS = rdimon-aem-el3.o rdimon-aem-v8-r.o
CPU_INIT_INSTALL = install-cpu-init
CFLAGS = -g
@@ -79,10 +79,15 @@ all: ${CPU_INIT_OBJS}
.PHONY: test
test:
-# Static pattern rule for assembling cpu init files to object files.
-${CPU_INIT_OBJS}: %.o: %.S
+rdimon-aem-el3.o : rdimon-aem-el3.S
$(CC) $(CFLAGS_FOR_TARGET) $(CFLAGS) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
+rdimon-aem-v8-r.o : rdimon-aem-el3.S
+ # Force the ACLE macro __ARM_ARCH_PROFILE='R'. This should be defined by
+ # the compiler for compilers supporting -march=armv8-r on AArch64 but we
+ # want to be able to build this code with older compilers.
+ $(CC) $(CFLAGS_FOR_TARGET) $(CFLAGS) $(INCLUDES) -DARM_RDI_MONITOR -D__ARM_ARCH_PROFILE=82 -o $@ -c $<
+
clean mostlyclean:
rm -f a.out core *.i *.o *-test *.srec *.dis *.x
diff --git a/libgloss/aarch64/cpu-init/rdimon-aem-el3.S b/libgloss/aarch64/cpu-init/rdimon-aem-el3.S
index e00f0b2c8..93dcdb353 100644
--- a/libgloss/aarch64/cpu-init/rdimon-aem-el3.S
+++ b/libgloss/aarch64/cpu-init/rdimon-aem-el3.S
@@ -43,7 +43,9 @@ _init_vectors:
/* Installs a table of exception vectors to catch and handle all
exceptions by terminating the process with a diagnostic. */
adr x0, vectors
+#if __ARM_ARCH_PROFILE != 'R'
msr vbar_el3, x0
+#endif
msr vbar_el2, x0
msr vbar_el1, x0
ret
@@ -110,6 +112,14 @@ vectors:
.text
.align 2
_flat_map:
+#if __ARM_ARCH_PROFILE == 'R'
+ mrs x0, sctlr_el2
+ orr x0, x0, #1 // SCTLR_EL2.M (enable MPU)
+ orr x0, x0, #(1 << 17) // SCTLR_EL2.BR (background regions)
+ msr sctlr_el2, x0
+ isb
+ ret
+#else
/* Page table setup (identity mapping). */
adrp x0, ttb
add x0, x0, :lo12:ttb
@@ -173,6 +183,7 @@ _flat_map:
isb
.Lnosve:
ret
+#endif
.data
.align 12
diff --git a/libgloss/aarch64/elf-aem-v8-r.specs b/libgloss/aarch64/elf-aem-v8-r.specs
new file mode 100644
index 000000000..4daeffd11
--- /dev/null
+++ b/libgloss/aarch64/elf-aem-v8-r.specs
@@ -0,0 +1,20 @@
+# elf-aem-v8-r.specs
+#
+# Spec file for AArch64 baremetal newlib, libgloss on Armv8-R with version 2 of
+# AngelAPI semi-hosting.
+
+%rename link old_link
+
+*link:
+-Ttext-segment 0x10000 %(old_link)
+
+%rename lib libc
+
+*libgloss:
+-lrdimon
+
+*lib:
+cpu-init/rdimon-aem-v8-r.o%s --start-group %(libc) %(libgloss) --end-group
+
+*startfile:
+crti%O%s crtbegin%O%s %{!pg:rdimon-crt0%O%s} %{pg:rdimon-crt0%O%s}
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
2020-09-18 14:43 [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64 Alex Coplan
@ 2020-09-22 12:42 ` Kyrylo Tkachov
2020-09-29 14:06 ` Richard Earnshaw (lists)
1 sibling, 0 replies; 6+ messages in thread
From: Kyrylo Tkachov @ 2020-09-22 12:42 UTC (permalink / raw)
To: Alex Coplan, newlib; +Cc: Richard Earnshaw
> -----Original Message-----
> From: Newlib <newlib-bounces@sourceware.org> On Behalf Of Alex Coplan
> Sent: 18 September 2020 15:43
> To: newlib@sourceware.org
> Cc: Richard Earnshaw <Richard.Earnshaw@arm.com>
> Subject: [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
>
> Hello,
>
> This patch adds support for Armv8-R AArch64. We update the AArch64 CPU
> boot code to work on Armv8-R if __ARM_ARCH_PROFILE is set to 'R'.
> Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
> code to set up the MPU for Armv8-R.
>
> We also add a specs file for use with Armv8-R AArch64 models.
>
> Testing:
> * Ran AArch64 GCC testsuite using --with-arch=armv8-r together with the
> new specs file and boot code in an Armv8-R AArch64 model.
> * Ran newlib testsuite, no regressions.
>
> OK for master?
>
FWIW this looks good to me but I'm not a maintainer.
Thanks,
Kyrill
> Thanks,
> Alex
>
> ---
>
> 2020-09-18 Alex Coplan <alex.coplan@arm.com>
>
> libgloss/ChangeLog:
>
> * aarch64/Makefile.in: Install new specs file.
> * aarch64/cpu-init/Makefile.in: Also build boot code for Armv8-R.
> * aarch64/cpu-init/rdimon-aem-el3.S: Add support for Armv8-R.
> * aarch64/elf-aem-v8-r.specs: New.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
2020-09-18 14:43 [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64 Alex Coplan
2020-09-22 12:42 ` Kyrylo Tkachov
@ 2020-09-29 14:06 ` Richard Earnshaw (lists)
2020-09-29 16:27 ` Alex Coplan
1 sibling, 1 reply; 6+ messages in thread
From: Richard Earnshaw (lists) @ 2020-09-29 14:06 UTC (permalink / raw)
To: Alex Coplan, newlib
On 18/09/2020 15:43, Alex Coplan wrote:
> Hello,
>
> This patch adds support for Armv8-R AArch64. We update the AArch64 CPU
> boot code to work on Armv8-R if __ARM_ARCH_PROFILE is set to 'R'.
> Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
> code to set up the MPU for Armv8-R.
>
> We also add a specs file for use with Armv8-R AArch64 models.
>
> Testing:
> * Ran AArch64 GCC testsuite using --with-arch=armv8-r together with the
> new specs file and boot code in an Armv8-R AArch64 model.
> * Ran newlib testsuite, no regressions.
>
> OK for master?
>
> Thanks,
> Alex
>
> ---
>
> 2020-09-18 Alex Coplan <alex.coplan@arm.com>
>
> libgloss/ChangeLog:
>
> * aarch64/Makefile.in: Install new specs file.
> * aarch64/cpu-init/Makefile.in: Also build boot code for Armv8-R.
> * aarch64/cpu-init/rdimon-aem-el3.S: Add support for Armv8-R.
> * aarch64/elf-aem-v8-r.specs: New.
>
The main problem I see with this is that it assumes that the compiler
being used is *not* configured for a default CPU architecture of
ARMv8-r. If it is, then the normal rdimon-aem-el3.o file will in fact
become the same as the v8-r version, which is not really what we want.
Perhaps, rather than hacking around the __ARM_ARCH_PROFILE setting you
should just set things up to build the file twice, but with a different
conventional pre-define set each time.
R.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
2020-09-29 14:06 ` Richard Earnshaw (lists)
@ 2020-09-29 16:27 ` Alex Coplan
2020-09-30 10:25 ` Richard Earnshaw (lists)
0 siblings, 1 reply; 6+ messages in thread
From: Alex Coplan @ 2020-09-29 16:27 UTC (permalink / raw)
To: Richard Earnshaw (lists); +Cc: newlib
[-- Attachment #1: Type: text/plain, Size: 1638 bytes --]
Hi Richard,
On 29/09/2020 15:06, Richard Earnshaw (lists) wrote:
> On 18/09/2020 15:43, Alex Coplan wrote:
> > Hello,
> >
> > This patch adds support for Armv8-R AArch64. We update the AArch64 CPU
> > boot code to work on Armv8-R if __ARM_ARCH_PROFILE is set to 'R'.
> > Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
> > code to set up the MPU for Armv8-R.
> >
> > We also add a specs file for use with Armv8-R AArch64 models.
> >
> > Testing:
> > * Ran AArch64 GCC testsuite using --with-arch=armv8-r together with the
> > new specs file and boot code in an Armv8-R AArch64 model.
> > * Ran newlib testsuite, no regressions.
> >
> > OK for master?
> >
> > Thanks,
> > Alex
> >
> > ---
> >
> > 2020-09-18 Alex Coplan <alex.coplan@arm.com>
> >
> > libgloss/ChangeLog:
> >
> > * aarch64/Makefile.in: Install new specs file.
> > * aarch64/cpu-init/Makefile.in: Also build boot code for Armv8-R.
> > * aarch64/cpu-init/rdimon-aem-el3.S: Add support for Armv8-R.
> > * aarch64/elf-aem-v8-r.specs: New.
> >
>
> The main problem I see with this is that it assumes that the compiler
> being used is *not* configured for a default CPU architecture of
> ARMv8-r. If it is, then the normal rdimon-aem-el3.o file will in fact
> become the same as the v8-r version, which is not really what we want.
Good catch. Thanks for the review.
>
> Perhaps, rather than hacking around the __ARM_ARCH_PROFILE setting you
> should just set things up to build the file twice, but with a different
> conventional pre-define set each time.
>
> R.
Sounds sensible. Is the revised patch (attached) OK?
Thanks,
Alex
[-- Attachment #2: v2.diff --]
[-- Type: text/x-diff, Size: 3052 bytes --]
diff --git a/libgloss/aarch64/Makefile.in b/libgloss/aarch64/Makefile.in
index 546557e3c..b8c2ca43c 100644
--- a/libgloss/aarch64/Makefile.in
+++ b/libgloss/aarch64/Makefile.in
@@ -85,7 +85,8 @@ RDIMON_BSP = librdimon${${MULTILIBNAME}}.a
RDIMON_OBJS = $(patsubst %,rdimon-%,$(OBJS))
RDIMON_SCRIPTS = rdimon${${MULTILIBNAME}}.specs \
aem-ve${${MULTILIBNAME}}.specs \
- aem-validation${${MULTILIBNAME}}.specs
+ aem-validation${${MULTILIBNAME}}.specs \
+ aem-v8-r${${MULTILIBNAME}}.specs
RDIMON_INSTALL = install-rdimon
CFLAGS = -g
diff --git a/libgloss/aarch64/cpu-init/Makefile.in b/libgloss/aarch64/cpu-init/Makefile.in
index 08aa1760f..c96f4ee0e 100644
--- a/libgloss/aarch64/cpu-init/Makefile.in
+++ b/libgloss/aarch64/cpu-init/Makefile.in
@@ -62,7 +62,7 @@ AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
-CPU_INIT_OBJS = rdimon-aem-el3.o
+CPU_INIT_OBJS = rdimon-aem-el3.o rdimon-aem-v8-r.o
CPU_INIT_INSTALL = install-cpu-init
CFLAGS = -g
@@ -79,10 +79,12 @@ all: ${CPU_INIT_OBJS}
.PHONY: test
test:
-# Static pattern rule for assembling cpu init files to object files.
-${CPU_INIT_OBJS}: %.o: %.S
+rdimon-aem-el3.o : rdimon-aem-el3.S
$(CC) $(CFLAGS_FOR_TARGET) $(CFLAGS) $(INCLUDES) -DARM_RDI_MONITOR -o $@ -c $<
+rdimon-aem-v8-r.o : rdimon-aem-el3.S
+ $(CC) $(CFLAGS_FOR_TARGET) $(CFLAGS) $(INCLUDES) -DARM_RDI_MONITOR -DBUILD_FOR_R_PROFILE -o $@ -c $<
+
clean mostlyclean:
rm -f a.out core *.i *.o *-test *.srec *.dis *.x
diff --git a/libgloss/aarch64/cpu-init/rdimon-aem-el3.S b/libgloss/aarch64/cpu-init/rdimon-aem-el3.S
index e00f0b2c8..0296a8054 100644
--- a/libgloss/aarch64/cpu-init/rdimon-aem-el3.S
+++ b/libgloss/aarch64/cpu-init/rdimon-aem-el3.S
@@ -43,7 +43,9 @@ _init_vectors:
/* Installs a table of exception vectors to catch and handle all
exceptions by terminating the process with a diagnostic. */
adr x0, vectors
+#ifndef BUILD_FOR_R_PROFILE
msr vbar_el3, x0
+#endif
msr vbar_el2, x0
msr vbar_el1, x0
ret
@@ -110,6 +112,14 @@ vectors:
.text
.align 2
_flat_map:
+#ifdef BUILD_FOR_R_PROFILE
+ mrs x0, sctlr_el2
+ orr x0, x0, #1 // SCTLR_EL2.M (enable MPU)
+ orr x0, x0, #(1 << 17) // SCTLR_EL2.BR (background regions)
+ msr sctlr_el2, x0
+ isb
+ ret
+#else
/* Page table setup (identity mapping). */
adrp x0, ttb
add x0, x0, :lo12:ttb
@@ -173,6 +183,7 @@ _flat_map:
isb
.Lnosve:
ret
+#endif
.data
.align 12
diff --git a/libgloss/aarch64/elf-aem-v8-r.specs b/libgloss/aarch64/elf-aem-v8-r.specs
new file mode 100644
index 000000000..4daeffd11
--- /dev/null
+++ b/libgloss/aarch64/elf-aem-v8-r.specs
@@ -0,0 +1,20 @@
+# elf-aem-v8-r.specs
+#
+# Spec file for AArch64 baremetal newlib, libgloss on Armv8-R with version 2 of
+# AngelAPI semi-hosting.
+
+%rename link old_link
+
+*link:
+-Ttext-segment 0x10000 %(old_link)
+
+%rename lib libc
+
+*libgloss:
+-lrdimon
+
+*lib:
+cpu-init/rdimon-aem-v8-r.o%s --start-group %(libc) %(libgloss) --end-group
+
+*startfile:
+crti%O%s crtbegin%O%s %{!pg:rdimon-crt0%O%s} %{pg:rdimon-crt0%O%s}
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
2020-09-29 16:27 ` Alex Coplan
@ 2020-09-30 10:25 ` Richard Earnshaw (lists)
2020-09-30 13:25 ` UNSUBSCRIBE Brian Hawley
0 siblings, 1 reply; 6+ messages in thread
From: Richard Earnshaw (lists) @ 2020-09-30 10:25 UTC (permalink / raw)
To: Alex Coplan; +Cc: newlib
On 29/09/2020 17:27, Alex Coplan via Newlib wrote:
> Hi Richard,
>
> On 29/09/2020 15:06, Richard Earnshaw (lists) wrote:
>> On 18/09/2020 15:43, Alex Coplan wrote:
>>> Hello,
>>>
>>> This patch adds support for Armv8-R AArch64. We update the AArch64 CPU
>>> boot code to work on Armv8-R if __ARM_ARCH_PROFILE is set to 'R'.
>>> Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
>>> code to set up the MPU for Armv8-R.
>>>
>>> We also add a specs file for use with Armv8-R AArch64 models.
>>>
>>> Testing:
>>> * Ran AArch64 GCC testsuite using --with-arch=armv8-r together with the
>>> new specs file and boot code in an Armv8-R AArch64 model.
>>> * Ran newlib testsuite, no regressions.
>>>
>>> OK for master?
>>>
>>> Thanks,
>>> Alex
>>>
>>> ---
>>>
>>> 2020-09-18 Alex Coplan <alex.coplan@arm.com>
>>>
>>> libgloss/ChangeLog:
>>>
>>> * aarch64/Makefile.in: Install new specs file.
>>> * aarch64/cpu-init/Makefile.in: Also build boot code for Armv8-R.
>>> * aarch64/cpu-init/rdimon-aem-el3.S: Add support for Armv8-R.
>>> * aarch64/elf-aem-v8-r.specs: New.
>>>
>>
>> The main problem I see with this is that it assumes that the compiler
>> being used is *not* configured for a default CPU architecture of
>> ARMv8-r. If it is, then the normal rdimon-aem-el3.o file will in fact
>> become the same as the v8-r version, which is not really what we want.
>
> Good catch. Thanks for the review.
>
>>
>> Perhaps, rather than hacking around the __ARM_ARCH_PROFILE setting you
>> should just set things up to build the file twice, but with a different
>> conventional pre-define set each time.
>>
>> R.
>
> Sounds sensible. Is the revised patch (attached) OK?
>
> Thanks,
> Alex
>
Pushed. I've used the following as the commit message (note that newlib
doesn't use ChangeLog files anymore).
libgloss: aarch64: Add support for Armv8-R AArch64
This patch adds support for Armv8-R AArch64.
Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
code to set up the MPU for Armv8-R. So build a different flavour of the
startup code to support that.
We also add a specs file that uses this alternative startup code which
can be used with Armv8-R AArch64 models.
R.
^ permalink raw reply [flat|nested] 6+ messages in thread
* UNSUBSCRIBE
2020-09-30 10:25 ` Richard Earnshaw (lists)
@ 2020-09-30 13:25 ` Brian Hawley
0 siblings, 0 replies; 6+ messages in thread
From: Brian Hawley @ 2020-09-30 13:25 UTC (permalink / raw)
Cc: Richard Earnshaw (lists) via Newlib
Brian Hawley
Luminex Software, Inc.
1-951-781-4100 x112
www.luminex.com
Original Message
From: newlib@sourceware.org
Sent: September 30, 2020 3:46 AM
To: alex.coplan@arm.com
Reply-to: Richard.Earnshaw@arm.com
Cc: newlib@sourceware.org
Subject: Re: [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64
On 29/09/2020 17:27, Alex Coplan via Newlib wrote:
> Hi Richard,
>
> On 29/09/2020 15:06, Richard Earnshaw (lists) wrote:
>> On 18/09/2020 15:43, Alex Coplan wrote:
>>> Hello,
>>>
>>> This patch adds support for Armv8-R AArch64. We update the AArch64 CPU
>>> boot code to work on Armv8-R if __ARM_ARCH_PROFILE is set to 'R'.
>>> Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
>>> code to set up the MPU for Armv8-R.
>>>
>>> We also add a specs file for use with Armv8-R AArch64 models.
>>>
>>> Testing:
>>> * Ran AArch64 GCC testsuite using --with-arch=armv8-r together with the
>>> new specs file and boot code in an Armv8-R AArch64 model.
>>> * Ran newlib testsuite, no regressions.
>>>
>>> OK for master?
>>>
>>> Thanks,
>>> Alex
>>>
>>> ---
>>>
>>> 2020-09-18 Alex Coplan <alex.coplan@arm.com>
>>>
>>> libgloss/ChangeLog:
>>>
>>> * aarch64/Makefile.in: Install new specs file.
>>> * aarch64/cpu-init/Makefile.in: Also build boot code for Armv8-R.
>>> * aarch64/cpu-init/rdimon-aem-el3.S: Add support for Armv8-R.
>>> * aarch64/elf-aem-v8-r.specs: New.
>>>
>>
>> The main problem I see with this is that it assumes that the compiler
>> being used is *not* configured for a default CPU architecture of
>> ARMv8-r. If it is, then the normal rdimon-aem-el3.o file will in fact
>> become the same as the v8-r version, which is not really what we want.
>
> Good catch. Thanks for the review.
>
>>
>> Perhaps, rather than hacking around the __ARM_ARCH_PROFILE setting you
>> should just set things up to build the file twice, but with a different
>> conventional pre-define set each time.
>>
>> R.
>
> Sounds sensible. Is the revised patch (attached) OK?
>
> Thanks,
> Alex
>
Pushed. I've used the following as the commit message (note that newlib
doesn't use ChangeLog files anymore).
libgloss: aarch64: Add support for Armv8-R AArch64
This patch adds support for Armv8-R AArch64.
Armv8-R AArch64 has no EL3, so we don't set vbar_el3, and adjust the
code to set up the MPU for Armv8-R. So build a different flavour of the
startup code to support that.
We also add a specs file that uses this alternative startup code which
can be used with Armv8-R AArch64 models.
R.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-09-30 13:25 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2020-09-18 14:43 [PATCH] libgloss/aarch64: Add support for Armv8-R AArch64 Alex Coplan
2020-09-22 12:42 ` Kyrylo Tkachov
2020-09-29 14:06 ` Richard Earnshaw (lists)
2020-09-29 16:27 ` Alex Coplan
2020-09-30 10:25 ` Richard Earnshaw (lists)
2020-09-30 13:25 ` UNSUBSCRIBE Brian Hawley
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