* testsuites: how to match something or no_this_line
@ 2023-05-09 6:16 YunQiang Su
2023-05-09 6:44 ` YunQiang Su
2023-05-09 7:48 ` Andreas Schwab
0 siblings, 2 replies; 5+ messages in thread
From: YunQiang Su @ 2023-05-09 6:16 UTC (permalink / raw)
To: binutils
I am working on binutils testsuites, and I find that I need to do so.
An example is like this: <gas/testsuite/gas/all/fwdexp.d>
The MIPS n64 has different relocation type like:
RELOCATION RECORDS FOR [.text]:
OFFSET TYPE VALUE
0000000000000000 R_MIPS_64 .data-0x0000000000000008
0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
While normally, for other ports, it like
RELOCATION RECORDS FOR [.text]:
OFFSET TYPE VALUE
00000000 R_MIPS_32 .data
Maybe I can sed out R_MIPS_NONE, but I don't know how to do so either.
--
YunQiang Su
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: testsuites: how to match something or no_this_line
2023-05-09 6:16 testsuites: how to match something or no_this_line YunQiang Su
@ 2023-05-09 6:44 ` YunQiang Su
2023-05-09 7:48 ` Andreas Schwab
1 sibling, 0 replies; 5+ messages in thread
From: YunQiang Su @ 2023-05-09 6:44 UTC (permalink / raw)
To: binutils
YunQiang Su <wzssyqa@gmail.com> 于2023年5月9日周二 14:16写道：
>
> I am working on binutils testsuites, and I find that I need to do so.
>
> An example is like this: <gas/testsuite/gas/all/fwdexp.d>
> The MIPS n64 has different relocation type like:
>
Sorry for the noisy: by reading the code of binutils-common.exp, I find
#?EXP
can work.
> RELOCATION RECORDS FOR [.text]:
> OFFSET TYPE VALUE
> 0000000000000000 R_MIPS_64 .data-0x0000000000000008
> 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
> 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
>
> While normally, for other ports, it like
>
> RELOCATION RECORDS FOR [.text]:
> OFFSET TYPE VALUE
> 00000000 R_MIPS_32 .data
>
> Maybe I can sed out R_MIPS_NONE, but I don't know how to do so either.
>
> --
> YunQiang Su
--
YunQiang Su
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: testsuites: how to match something or no_this_line
2023-05-09 6:16 testsuites: how to match something or no_this_line YunQiang Su
2023-05-09 6:44 ` YunQiang Su
@ 2023-05-09 7:48 ` Andreas Schwab
2023-05-09 8:01 ` YunQiang Su
2023-05-09 8:32 ` Alan Modra
1 sibling, 2 replies; 5+ messages in thread
From: Andreas Schwab @ 2023-05-09 7:48 UTC (permalink / raw)
To: YunQiang Su via Binutils; +Cc: YunQiang Su
On Mai 09 2023, YunQiang Su via Binutils wrote:
> An example is like this: <gas/testsuite/gas/all/fwdexp.d>
> The MIPS n64 has different relocation type like:
>
> RELOCATION RECORDS FOR [.text]:
> OFFSET TYPE VALUE
> 0000000000000000 R_MIPS_64 .data-0x0000000000000008
> 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
> 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
>
> While normally, for other ports, it like
>
> RELOCATION RECORDS FOR [.text]:
> OFFSET TYPE VALUE
> 00000000 R_MIPS_32 .data
>
> Maybe I can sed out R_MIPS_NONE, but I don't know how to do so either.
It's really a bug in the mips backend, nothing should ever emit R_*_NONE
relocations.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: testsuites: how to match something or no_this_line
2023-05-09 7:48 ` Andreas Schwab
@ 2023-05-09 8:01 ` YunQiang Su
2023-05-09 8:32 ` Alan Modra
1 sibling, 0 replies; 5+ messages in thread
From: YunQiang Su @ 2023-05-09 8:01 UTC (permalink / raw)
To: Andreas Schwab; +Cc: YunQiang Su via Binutils
Andreas Schwab <schwab@suse.de> 于2023年5月9日周二 15:48写道：
>
> On Mai 09 2023, YunQiang Su via Binutils wrote:
>
> > An example is like this: <gas/testsuite/gas/all/fwdexp.d>
> > The MIPS n64 has different relocation type like:
> >
> > RELOCATION RECORDS FOR [.text]:
> > OFFSET TYPE VALUE
> > 0000000000000000 R_MIPS_64 .data-0x0000000000000008
> > 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
> > 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
> >
> > While normally, for other ports, it like
> >
> > RELOCATION RECORDS FOR [.text]:
> > OFFSET TYPE VALUE
> > 00000000 R_MIPS_32 .data
> >
> > Maybe I can sed out R_MIPS_NONE, but I don't know how to do so either.
>
> It's really a bug in the mips backend, nothing should ever emit R_*_NONE
> relocations.
>
In fact it is a "feature" of MIPS's ELF64.
It is called chained relocations or relocation chain.
> --
> Andreas Schwab, SUSE Labs, schwab@suse.de
> GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
> "And now for something completely different."
--
YunQiang Su
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: testsuites: how to match something or no_this_line
2023-05-09 7:48 ` Andreas Schwab
2023-05-09 8:01 ` YunQiang Su
@ 2023-05-09 8:32 ` Alan Modra
1 sibling, 0 replies; 5+ messages in thread
From: Alan Modra @ 2023-05-09 8:32 UTC (permalink / raw)
To: Andreas Schwab; +Cc: YunQiang Su via Binutils, YunQiang Su
On Tue, May 09, 2023 at 09:48:26AM +0200, Andreas Schwab via Binutils wrote:
> On Mai 09 2023, YunQiang Su via Binutils wrote:
>
> > An example is like this: <gas/testsuite/gas/all/fwdexp.d>
> > The MIPS n64 has different relocation type like:
> >
> > RELOCATION RECORDS FOR [.text]:
> > OFFSET TYPE VALUE
> > 0000000000000000 R_MIPS_64 .data-0x0000000000000008
> > 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
> > 0000000000000000 R_MIPS_NONE *ABS*-0x0000000000000008
> >
> > While normally, for other ports, it like
> >
> > RELOCATION RECORDS FOR [.text]:
> > OFFSET TYPE VALUE
> > 00000000 R_MIPS_32 .data
> >
> > Maybe I can sed out R_MIPS_NONE, but I don't know how to do so either.
>
> It's really a bug in the mips backend, nothing should ever emit R_*_NONE
> relocations.
No, see include/elf/mips.h Elf64_Mips_External_Rel.
--
Alan Modra
Australia Development Lab, IBM
^ permalink raw reply [flat|nested] 5+ messages in thread
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2023-05-09 6:16 testsuites: how to match something or no_this_line YunQiang Su
2023-05-09 6:44 ` YunQiang Su
2023-05-09 7:48 ` Andreas Schwab
2023-05-09 8:01 ` YunQiang Su
2023-05-09 8:32 ` Alan Modra
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