[PATCH] bsp/riscv: block unused cores in OS non-smp configurations

2022-10-18 Thread lucian-raul . silistru 
From: Lucian-Raul Silistru 

When running on a multicore device with SMP disabled it is possible
for unused harts to still be pulled out of reset. This change parks
them in a wfi loop.

Updates #4735
---
 bsps/riscv/shared/start/start.S | 6 ++
 1 file changed, 6 insertions(+)

diff --git a/bsps/riscv/shared/start/start.S b/bsps/riscv/shared/start/start.S
index a8ff1b079f..da5cd2be67 100644
--- a/bsps/riscv/shared/start/start.S
+++ b/bsps/riscv/shared/start/start.S
@@ -71,6 +71,8 @@ SYM(_start):
bnezs0, .Lstart_on_secondary_processor
add sp, sp, t2
 #else
+   csrrs0, mhartid
+   bnezs0, .Lblock_on_unused_processor
LADDR   sp, _ISR_Stack_area_end
 #endif
 
@@ -144,4 +146,8 @@ SYM(_start):
.word   0x00100073
 #endif
 
+#else /* RTEMS_SMP */
+.Lblock_on_unused_processor:
+   wfi
+   bnezs0, .Lblock_on_unused_processor
 #endif /* RTEMS_SMP */
-- 
2.25.1

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Re: Ping on ticket 4728 + patch

2022-10-18 Thread Alan Cudmore 
The log does have the error, and I get it when building by hand too:
start.o: in function `.L0 ':
/home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5c):
relocation truncated to fit: R_RISCV_GPREL_I against symbol
`bsp_section_bss_size' defined in *ABS* section in
/home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/testsuites/samples/minimum.exe
collect2: error: ld returned 1 exit status

On Mon, Oct 17, 2022 at 10:43 PM Chris Johns  wrote:
>
> On 18/10/2022 1:13 pm, Joel Sherrill wrote:
> > On Sun, Oct 16, 2022 at 9:32 AM Alan Cudmore  > > wrote:
> >
> > On Fri, Oct 14, 2022 at 9:19 AM Joel Sherrill  > > wrote:
> > >
> > > Pushed. Thanks for pinging. It does help.
> > >
> > > Since you are looking at the riscv BSPs, could you look at the four
> > > BSP build failures reported here:
> > >
> > > https://lists.rtems.org/pipermail/build/2022-September/036496.html
> > 
> > >
> > > I think they are all variants so one fix (maybe repeated) should do 
> > it.
> > > The reported message isn't much help:
> > >
> > >1 smp riscv/rv32iac build:
> > >   configure: /home/tester/rtems-cron-6/rtems/waf configure\
> > >   --prefix=/home/tester/rtems-cron-6/tools/6/bsps 
> > --top=/home/tester\
> > >   /rtems-cron-6/rtems --rtems-config=config-riscv-rv32iac-smp.ini
> > >  error: ld/collect2:0 error: no error message found!
> > >
> >
> > I ran the bsp builder on the riscv BSPs with an updated toolchain and
> > latest rtems master. I was able to reproduce only one of the failures
> > with the rv32imafdc SMP configuration:
> > Failures:
> >1 smp riscv/rv32imafdc build:
> >   configure: /home/alan/rtems/test-build/rtems/waf configure\
> >   --prefix=/home/alan/rtems/test-build/bsps\
> >   --top=/home/alan/rtems/test-build/rtems 
> > --rtems-config=config-riscv-\
> >   rv32imafdc-smp.ini
> >  error: ld/collect2:0 error: no error message found!
> >
> > Average BSP Build Time: 0:00:26.253927
> > Total Time 1:04:45.581263
> > Passes: 147   Failures: 1
> >
> > This is the detail from the log:
> > [1424/1437] Compiling ../../../rtems/testsuites/samples/nsecs/init.c
> > start.o: in function `.L0 ':
> > 
> > /home/alan/rtems/test-build/rtems/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5
> > c): relocation truncated to fit: R_RISCV_GPREL_I against symbol
> > `bsp_section_bss_size' defined in *ABS* section in /home/
> > 
> > alan/rtems/test-build/rtems/build/riscv/rv32imafdc/testsuites/samples/minimum.exe
> > collect2: error: ld returned 1 exit status
> >
> > This seems to be similar to the error I get when I try to build the
> > frdme310arty BSP with the testsuite and posix enabled:
> > [4152/4326] Compiling testsuites/validation/tr-sem-surrender.c
> > start.o: in function `.L0 ':
> > 
> > /home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_te
> > xt+0x28): relocation truncated to fit: R_RISCV_GPREL_I against symbol
> > `bsp_section_bss_size' defined in *ABS* section in
> > 
> > /home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/testsuites/validation/ts-validation-io-kernel.exe
> > collect2: error: ld returned 1 exit status
> >
> > I need to investigate this more.
> >
> >
> > There are two issues.
> >
> > (1) The test in question does not fit on this target and needs to be 
> > disabled.
> >
> > (2) Somewhere there is parsing of this output which may be able to be more 
> > helpful.
> >
> > Chris... any pointers on (2)? Can the output of bsp builder be improved?
>
> 1) There should be a log of all the build details. Check in that for the 
> error.
>
> 2) Can you build it by hand and see the error?
>
> Chris
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Re: Ping on ticket 4728 + patch

2022-10-18 Thread Joel Sherrill 
On Tue, Oct 18, 2022 at 8:44 AM Alan Cudmore  wrote:

> The log does have the error, and I get it when building by hand too:
> start.o: in function `.L0 ':
>
> /home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5c):
> relocation truncated to fit: R_RISCV_GPREL_I against symbol
> `bsp_section_bss_size' defined in *ABS* section in
>
> /home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/testsuites/samples/minimum.exe
> collect2: error: ld returned 1 exit status
>


Hmmm.. that's weird. You should never get a truncation error linking
minimum.exe.
It should always fit within the BSP's memory and not have any issues with
branches
or calls needing fixup.

Unless the wrong type of branch/jump/call instruction is used at
start.S:86, I have
no idea.If it's a form that assumes a short distance to the destination but
is going
to a symbol outside start.S and thus could be further.

--joel


>
> On Mon, Oct 17, 2022 at 10:43 PM Chris Johns  wrote:
> >
> > On 18/10/2022 1:13 pm, Joel Sherrill wrote:
> > > On Sun, Oct 16, 2022 at 9:32 AM Alan Cudmore  > > > wrote:
> > >
> > > On Fri, Oct 14, 2022 at 9:19 AM Joel Sherrill  > > > wrote:
> > > >
> > > > Pushed. Thanks for pinging. It does help.
> > > >
> > > > Since you are looking at the riscv BSPs, could you look at the
> four
> > > > BSP build failures reported here:
> > > >
> > > >
> https://lists.rtems.org/pipermail/build/2022-September/036496.html
> > > <
> https://lists.rtems.org/pipermail/build/2022-September/036496.html>
> > > >
> > > > I think they are all variants so one fix (maybe repeated) should
> do it.
> > > > The reported message isn't much help:
> > > >
> > > >1 smp riscv/rv32iac build:
> > > >   configure: /home/tester/rtems-cron-6/rtems/waf configure\
> > > >   --prefix=/home/tester/rtems-cron-6/tools/6/bsps
> --top=/home/tester\
> > > >   /rtems-cron-6/rtems
> --rtems-config=config-riscv-rv32iac-smp.ini
> > > >  error: ld/collect2:0 error: no error message found!
> > > >
> > >
> > > I ran the bsp builder on the riscv BSPs with an updated toolchain
> and
> > > latest rtems master. I was able to reproduce only one of the
> failures
> > > with the rv32imafdc SMP configuration:
> > > Failures:
> > >1 smp riscv/rv32imafdc build:
> > >   configure: /home/alan/rtems/test-build/rtems/waf configure\
> > >   --prefix=/home/alan/rtems/test-build/bsps\
> > >   --top=/home/alan/rtems/test-build/rtems
> --rtems-config=config-riscv-\
> > >   rv32imafdc-smp.ini
> > >  error: ld/collect2:0 error: no error message found!
> > >
> > > Average BSP Build Time: 0:00:26.253927
> > > Total Time 1:04:45.581263
> > > Passes: 147   Failures: 1
> > >
> > > This is the detail from the log:
> > > [1424/1437] Compiling
> ../../../rtems/testsuites/samples/nsecs/init.c
> > > start.o: in function `.L0 ':
> > >
>  
> /home/alan/rtems/test-build/rtems/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5
> > > c): relocation truncated to fit: R_RISCV_GPREL_I against symbol
> > > `bsp_section_bss_size' defined in *ABS* section in /home/
> > >
>  
> alan/rtems/test-build/rtems/build/riscv/rv32imafdc/testsuites/samples/minimum.exe
> > > collect2: error: ld returned 1 exit status
> > >
> > > This seems to be similar to the error I get when I try to build the
> > > frdme310arty BSP with the testsuite and posix enabled:
> > > [4152/4326] Compiling testsuites/validation/tr-sem-surrender.c
> > > start.o: in function `.L0 ':
> > >
>  
> /home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_te
> > > xt+0x28): relocation truncated to fit: R_RISCV_GPREL_I against
> symbol
> > > `bsp_section_bss_size' defined in *ABS* section in
> > >
>  
> /home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/testsuites/validation/ts-validation-io-kernel.exe
> > > collect2: error: ld returned 1 exit status
> > >
> > > I need to investigate this more.
> > >
> > >
> > > There are two issues.
> > >
> > > (1) The test in question does not fit on this target and needs to be
> disabled.
> > >
> > > (2) Somewhere there is parsing of this output which may be able to be
> more helpful.
> > >
> > > Chris... any pointers on (2)? Can the output of bsp builder be
> improved?
> >
> > 1) There should be a log of all the build details. Check in that for the
> error.
> >
> > 2) Can you build it by hand and see the error?
> >
> > Chris
>
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Re: Ping on ticket 4728 + patch

2022-10-18 Thread Alan Cudmore 
On Tue, Oct 18, 2022 at 9:55 AM Joel Sherrill  wrote:
>
>
>
> On Tue, Oct 18, 2022 at 8:44 AM Alan Cudmore  wrote:
>>
>> The log does have the error, and I get it when building by hand too:
>> start.o: in function `.L0 ':
>> /home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5c):
>> relocation truncated to fit: R_RISCV_GPREL_I against symbol
>> `bsp_section_bss_size' defined in *ABS* section in
>> /home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/testsuites/samples/minimum.exe
>> collect2: error: ld returned 1 exit status
>
>
>
> Hmmm.. that's weird. You should never get a truncation error linking 
> minimum.exe.
> It should always fit within the BSP's memory and not have any issues with 
> branches
> or calls needing fixup.
>
> Unless the wrong type of branch/jump/call instruction is used at start.S:86, 
> I have
> no idea.If it's a form that assumes a short distance to the destination but 
> is going
> to a symbol outside start.S and thus could be further.

Also, 6 of the samples such as hello.exe link without error.
The rv32imafdc BSP variant does not have CPU_CFLAGS.
rv32imafd links fine and has specific CPU_CFLAGS, rv32imafdc does not
have the flags.
(I'll research the gcc defaults and architecture differences next..)

I get a similar error on the frdme310arty BSP but only on a specific
POSIX testsuite executable:

start.o: in function `.L0 ':

/home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x28):
relocation truncated to fit: R_RISCV_GPREL_I against symbol
`bsp_section_bss_size' defined in *ABS* section in
/home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/testsuites/validation/ts-validation-io-kernel.exe

collect2: error: ld returned 1 exit status



>
> --joel
>
>>
>>
>> On Mon, Oct 17, 2022 at 10:43 PM Chris Johns  wrote:
>> >
>> > On 18/10/2022 1:13 pm, Joel Sherrill wrote:
>> > > On Sun, Oct 16, 2022 at 9:32 AM Alan Cudmore > > > > wrote:
>> > >
>> > > On Fri, Oct 14, 2022 at 9:19 AM Joel Sherrill > > > > wrote:
>> > > >
>> > > > Pushed. Thanks for pinging. It does help.
>> > > >
>> > > > Since you are looking at the riscv BSPs, could you look at the four
>> > > > BSP build failures reported here:
>> > > >
>> > > > https://lists.rtems.org/pipermail/build/2022-September/036496.html
>> > > 
>> > > >
>> > > > I think they are all variants so one fix (maybe repeated) should 
>> > > do it.
>> > > > The reported message isn't much help:
>> > > >
>> > > >1 smp riscv/rv32iac build:
>> > > >   configure: /home/tester/rtems-cron-6/rtems/waf configure\
>> > > >   --prefix=/home/tester/rtems-cron-6/tools/6/bsps 
>> > > --top=/home/tester\
>> > > >   /rtems-cron-6/rtems 
>> > > --rtems-config=config-riscv-rv32iac-smp.ini
>> > > >  error: ld/collect2:0 error: no error message found!
>> > > >
>> > >
>> > > I ran the bsp builder on the riscv BSPs with an updated toolchain and
>> > > latest rtems master. I was able to reproduce only one of the failures
>> > > with the rv32imafdc SMP configuration:
>> > > Failures:
>> > >1 smp riscv/rv32imafdc build:
>> > >   configure: /home/alan/rtems/test-build/rtems/waf configure\
>> > >   --prefix=/home/alan/rtems/test-build/bsps\
>> > >   --top=/home/alan/rtems/test-build/rtems 
>> > > --rtems-config=config-riscv-\
>> > >   rv32imafdc-smp.ini
>> > >  error: ld/collect2:0 error: no error message found!
>> > >
>> > > Average BSP Build Time: 0:00:26.253927
>> > > Total Time 1:04:45.581263
>> > > Passes: 147   Failures: 1
>> > >
>> > > This is the detail from the log:
>> > > [1424/1437] Compiling ../../../rtems/testsuites/samples/nsecs/init.c
>> > > start.o: in function `.L0 ':
>> > > 
>> > > /home/alan/rtems/test-build/rtems/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5
>> > > c): relocation truncated to fit: R_RISCV_GPREL_I against symbol
>> > > `bsp_section_bss_size' defined in *ABS* section in /home/
>> > > 
>> > > alan/rtems/test-build/rtems/build/riscv/rv32imafdc/testsuites/samples/minimum.exe
>> > > collect2: error: ld returned 1 exit status
>> > >
>> > > This seems to be similar to the error I get when I try to build the
>> > > frdme310arty BSP with the testsuite and posix enabled:
>> > > [4152/4326] Compiling testsuites/validation/tr-sem-surrender.c
>> > > start.o: in function `.L0 ':
>> > > 
>> > > /home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_te
>> > > xt+0x28): relocation truncated to fit: R_RISCV_GPREL_I against symbol
>> > > `bsp_s

Re: Ping on ticket 4728 + patch

2022-10-18 Thread Sebastian Huber 

On 18/10/2022 16:36, Alan Cudmore wrote:

On Tue, Oct 18, 2022 at 9:55 AM Joel Sherrill  wrote:



On Tue, Oct 18, 2022 at 8:44 AM Alan Cudmore  wrote:

The log does have the error, and I get it when building by hand too:
start.o: in function `.L0 ':
/home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5c):
relocation truncated to fit: R_RISCV_GPREL_I against symbol
`bsp_section_bss_size' defined in*ABS*  section in
/home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/testsuites/samples/minimum.exe
collect2: error: ld returned 1 exit status



Hmmm.. that's weird. You should never get a truncation error linking 
minimum.exe.
It should always fit within the BSP's memory and not have any issues with 
branches
or calls needing fixup.

Unless the wrong type of branch/jump/call instruction is used at start.S:86, I 
have
no idea.If it's a form that assumes a short distance to the destination but is 
going
to a symbol outside start.S and thus could be further.

Also, 6 of the samples such as hello.exe link without error.
The rv32imafdc BSP variant does not have CPU_CFLAGS.
rv32imafd links fine and has specific CPU_CFLAGS, rv32imafdc does not
have the flags.
(I'll research the gcc defaults and architecture differences next..)

I get a similar error on the frdme310arty BSP but only on a specific
POSIX testsuite executable:

start.o: in function `.L0 ':

/home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x28):
relocation truncated to fit: R_RISCV_GPREL_I against symbol
`bsp_section_bss_size' defined in*ABS*  section in
/home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/testsuites/validation/ts-validation-io-kernel.exe

collect2: error: ld returned 1 exit status


My off hand guess is that this is a tool chain issue on certain host 
systems. For example, I never got this error on our OpenSUSE machines.


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RE: Ping on ticket 4728 + patch

2022-10-18 Thread Alan Cudmore 
  From: Sebastian HuberSent: Tuesday, October 18, 2022 11:15 AMTo: Alan Cudmore; j...@rtems.orgCc: rtems-de...@rtems.orgSubject: Re: Ping on ticket 4728 + patch On 18/10/2022 16:36, Alan Cudmore wrote:> On Tue, Oct 18, 2022 at 9:55 AM Joel Sherrill  wrote:>> >> >> On Tue, Oct 18, 2022 at 8:44 AM Alan Cudmore  wrote:>>> The log does have the error, and I get it when building by hand too:>>> start.o: in function `.L0 ':>>> /home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5c):>>> relocation truncated to fit: R_RISCV_GPREL_I against symbol>>> `bsp_section_bss_size' defined in*ABS*  section in>>> /home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/testsuites/samples/minimum.exe>>> collect2: error: ld returned 1 exit status>> >> >> Hmmm.. that's weird. You should never get a truncation error linking minimum.exe.>> It should always fit within the BSP's memory and not have any issues with branches>> or calls needing fixup.>> >> Unless the wrong type of branch/jump/call instruction is used at start.S:86, I have>> no idea.If it's a form that assumes a short distance to the destination but is going>> to a symbol outside start.S and thus could be further.> Also, 6 of the samples such as hello.exe link without error.> The rv32imafdc BSP variant does not have CPU_CFLAGS.> rv32imafd links fine and has specific CPU_CFLAGS, rv32imafdc does not> have the flags.> (I'll research the gcc defaults and architecture differences next..)> > I get a similar error on the frdme310arty BSP but only on a specific> POSIX testsuite executable:> > start.o: in function `.L0 ':> > /home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x28):> relocation truncated to fit: R_RISCV_GPREL_I against symbol> `bsp_section_bss_size' defined in*ABS*  section in> /home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/testsuites/validation/ts-validation-io-kernel.exe> > collect2: error: ld returned 1 exit status My off hand guess is that this is a tool chain issue on certain host systems. For example, I never got this error on our OpenSUSE machines. I can set up a OpenSUSE virtual machine and try it. I noticed the RSB documentation does not have a set of packages for OpenSUSE – I could send a docs patch after a successful build. What release do you use? Do you have a list of packages to install? Alan  -- embedded brains GmbHHerr Sebastian HUBERDornierstr. 482178 PuchheimGermanyemail: sebastian.hu...@embedded-brains.dephone: +49-89-18 94 741 - 16fax:   +49-89-18 94 741 - 08 Registergericht: Amtsgericht MünchenRegisternummer: HRB 157899Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas DörflerUnsere Datenschutzerklärung finden Sie hier:https://embedded-brains.de/datenschutzerklaerung/ 
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Re: Ping on ticket 4728 + patch

2022-10-18 Thread Sebastian Huber 

On 18/10/2022 21:02, Alan Cudmore wrote:

*From: *Sebastian Huber 
*Sent: *Tuesday, October 18, 2022 11:15 AM
*To: *Alan Cudmore ; j...@rtems.org 


*Cc: *rtems-de...@rtems.org 
*Subject: *Re: Ping on ticket 4728 + patch

On 18/10/2022 16:36, Alan Cudmore wrote:

 > On Tue, Oct 18, 2022 at 9:55 AM Joel Sherrill  wrote:

 >>

 >>

 >> On Tue, Oct 18, 2022 at 8:44 AM Alan 
Cudmore  wrote:


 >>> The log does have the error, and I get it when building by hand too:

 >>> start.o: in function `.L0 ':

 >>> 
/home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x5c):


 >>> relocation truncated to fit: R_RISCV_GPREL_I against symbol

 >>> `bsp_section_bss_size' defined in*ABS*  section in

 >>> 
/home/alan/rtems/test-build/rtems-tmp/build/riscv/rv32imafdc/testsuites/samples/minimum.exe


 >>> collect2: error: ld returned 1 exit status

 >>

 >>

 >> Hmmm.. that's weird. You should never get a truncation error linking 
minimum.exe.


 >> It should always fit within the BSP's memory and not have any issues 
with branches


 >> or calls needing fixup.

 >>

 >> Unless the wrong type of branch/jump/call instruction is used at 
start.S:86, I have


 >> no idea.If it's a form that assumes a short distance to the 
destination but is going


 >> to a symbol outside start.S and thus could be further.

 > Also, 6 of the samples such as hello.exe link without error.

 > The rv32imafdc BSP variant does not have CPU_CFLAGS.

 > rv32imafd links fine and has specific CPU_CFLAGS, rv32imafdc does not

 > have the flags.

 > (I'll research the gcc defaults and architecture differences next..)

 >

 > I get a similar error on the frdme310arty BSP but only on a specific

 > POSIX testsuite executable:

 >

 > start.o: in function `.L0 ':

 >

 > 
/home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/../../../bsps/riscv/shared/start/start.S:86:(.bsp_start_text+0x28):


 > relocation truncated to fit: R_RISCV_GPREL_I against symbol

 > `bsp_section_bss_size' defined in*ABS*  section in

 > 
/home/alan/rtems/test-build/rtems-tmp/build/riscv/frdme310arty/testsuites/validation/ts-validation-io-kernel.exe


 >

 > collect2: error: ld returned 1 exit status

My off hand guess is that this is a tool chain issue on certain host

systems. For example, I never got this error on our OpenSUSE machines.

I can set up a OpenSUSE virtual machine and try it. I noticed the RSB 
documentation does not have a set of packages for OpenSUSE – I could 
send a docs patch after a successful build. What release do you use? Do 
you have a list of packages to install?


We use openSUSE Leap 15.3 and 15.4. To get the packages maybe try this:

zypper in -t pattern devel_C_C++ devel_python3

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