Re: [PATCH] kexec-tools: purgatory: fix build on `binutils-2.42`

2024-02-04 Thread Baoquan He
On 02/02/24 at 09:57am, Simon Horman wrote:
> On Fri, Feb 02, 2024 at 12:16:38PM +0800, Baoquan He wrote:
> > On 02/02/24 at 11:01am, Coiby Xu wrote:
> > > Hi,
> > > 
> > > FYI, before this patch, Michel already sent "[PATCH] Fix building on 
> > > x86_64
> > > with binutils 2.41" to address the same issue. Currently I almost know
> > > nothing about
> > > assembly but Michel's patch seems to be more complete because two more
> > > files are touched.
> > 
> > Thanks for telling, I didn't notice that one. I didn't know these
> > either, leave them to Sergei and Michel to decide what is the
> > appropriate solution.
> 
> Hi,
> 
> I did go ahead and apply Michael's patch.
> Let's follow-up with incremental changes if necessary.

Sounds great, thanks.


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Re: [PATCH] kexec-tools: purgatory: fix build on `binutils-2.42`

2024-02-02 Thread Simon Horman
On Fri, Feb 02, 2024 at 12:16:38PM +0800, Baoquan He wrote:
> On 02/02/24 at 11:01am, Coiby Xu wrote:
> > Hi,
> > 
> > FYI, before this patch, Michel already sent "[PATCH] Fix building on x86_64
> > with binutils 2.41" to address the same issue. Currently I almost know
> > nothing about
> > assembly but Michel's patch seems to be more complete because two more
> > files are touched.
> 
> Thanks for telling, I didn't notice that one. I didn't know these
> either, leave them to Sergei and Michel to decide what is the
> appropriate solution.

Hi,

I did go ahead and apply Michael's patch.
Let's follow-up with incremental changes if necessary.

...

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Re: [PATCH] kexec-tools: purgatory: fix build on `binutils-2.42`

2024-02-01 Thread Baoquan He
On 02/02/24 at 11:01am, Coiby Xu wrote:
> Hi,
> 
> FYI, before this patch, Michel already sent "[PATCH] Fix building on x86_64
> with binutils 2.41" to address the same issue. Currently I almost know
> nothing about
> assembly but Michel's patch seems to be more complete because two more
> files are touched.

Thanks for telling, I didn't notice that one. I didn't know these
either, leave them to Sergei and Michel to decide what is the
appropriate solution.

> 
> On Wed, Jan 31, 2024 at 07:04:57PM +0800, Baoquan He wrote:
> > On 01/31/24 at 10:05am, Sergei Trofimovich wrote:
> > > `binutils-2.42` introduced stricter checks on what `.arch` can be used
> > > in 64-bit mode and started failing the build as:
> > > 
> > > $ as-2.42 --64 -o entry32-16-debug.o entry32-16-debug.s
> > > purgatory/arch/i386/entry32-16-debug.S: Assembler messages:
> > > purgatory/arch/i386/entry32-16-debug.S:28: Error: 64bit mode not 
> > > supported on `i386'.
> > > 
> > > The change moves `.code32` before `.arch 386` as suggested in
> > > https://sourceware.org/PR31319
> > 
> > I am not familiar with the gas behaviour, the fix sounds good from
> > discussion in above link.
> > 
> > Reviewed-by: Baoquan He 
> > 
> > > 
> > > Signed-off-by: Sergei Trofimovich 
> > > ---
> > >  purgatory/arch/i386/entry32-16-debug.S | 2 +-
> > >  purgatory/arch/i386/entry32-16.S   | 2 +-
> > >  2 files changed, 2 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/purgatory/arch/i386/entry32-16-debug.S 
> > > b/purgatory/arch/i386/entry32-16-debug.S
> > > index 5167944..297d6f5 100644
> > > --- a/purgatory/arch/i386/entry32-16-debug.S
> > > +++ b/purgatory/arch/i386/entry32-16-debug.S
> > > @@ -25,10 +25,10 @@
> > >   .globl entry16_debug_pre32
> > >   .globl entry16_debug_first32
> > >   .globl entry16_debug_old_first32
> > > + .code32
> > >   .arch i386
> > >   .balign 16
> > >  entry16_debug:
> > > - .code32
> > >   /* Compute where I am running at (assumes esp valid) */
> > >   call1f
> > >  1:   popl%ebx
> > > diff --git a/purgatory/arch/i386/entry32-16.S 
> > > b/purgatory/arch/i386/entry32-16.S
> > > index c051aab..7a84565 100644
> > > --- a/purgatory/arch/i386/entry32-16.S
> > > +++ b/purgatory/arch/i386/entry32-16.S
> > > @@ -20,10 +20,10 @@
> > >  #undef i386  
> > >   .text
> > >   .globl entry16, entry16_regs
> > > + .code32
> > >   .arch i386
> > >   .balign 16
> > >  entry16:
> > > - .code32
> > >   /* Compute where I am running at (assumes esp valid) */
> > >   call1f
> > >  1:   popl%ebx
> > > --
> > > 2.43.0
> > > 
> > 
> 
> -- 
> Best regards,
> Coiby
> 


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Re: Re: [PATCH] kexec-tools: purgatory: fix build on `binutils-2.42`

2024-02-01 Thread Coiby Xu

Hi,

FYI, before this patch, Michel already sent 
"[PATCH] Fix building on x86_64 with binutils 2.41" 
to address the same issue. Currently I almost know nothing about

assembly but Michel's patch seems to be more complete because two more
files are touched.

On Wed, Jan 31, 2024 at 07:04:57PM +0800, Baoquan He wrote:

On 01/31/24 at 10:05am, Sergei Trofimovich wrote:

`binutils-2.42` introduced stricter checks on what `.arch` can be used
in 64-bit mode and started failing the build as:

$ as-2.42 --64 -o entry32-16-debug.o entry32-16-debug.s
purgatory/arch/i386/entry32-16-debug.S: Assembler messages:
purgatory/arch/i386/entry32-16-debug.S:28: Error: 64bit mode not supported 
on `i386'.

The change moves `.code32` before `.arch 386` as suggested in
https://sourceware.org/PR31319


I am not familiar with the gas behaviour, the fix sounds good from
discussion in above link.

Reviewed-by: Baoquan He 



Signed-off-by: Sergei Trofimovich 
---
 purgatory/arch/i386/entry32-16-debug.S | 2 +-
 purgatory/arch/i386/entry32-16.S   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/purgatory/arch/i386/entry32-16-debug.S 
b/purgatory/arch/i386/entry32-16-debug.S
index 5167944..297d6f5 100644
--- a/purgatory/arch/i386/entry32-16-debug.S
+++ b/purgatory/arch/i386/entry32-16-debug.S
@@ -25,10 +25,10 @@
.globl entry16_debug_pre32
.globl entry16_debug_first32
.globl entry16_debug_old_first32
+   .code32
.arch i386
.balign 16
 entry16_debug:
-   .code32
/* Compute where I am running at (assumes esp valid) */
call1f
 1: popl%ebx
diff --git a/purgatory/arch/i386/entry32-16.S b/purgatory/arch/i386/entry32-16.S
index c051aab..7a84565 100644
--- a/purgatory/arch/i386/entry32-16.S
+++ b/purgatory/arch/i386/entry32-16.S
@@ -20,10 +20,10 @@
 #undef i386
.text
.globl entry16, entry16_regs
+   .code32
.arch i386
.balign 16
 entry16:
-   .code32
/* Compute where I am running at (assumes esp valid) */
call1f
 1: popl%ebx
--
2.43.0





--
Best regards,
Coiby


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[PATCH] kexec-tools: purgatory: fix build on `binutils-2.42`

2024-01-31 Thread Sergei Trofimovich
`binutils-2.42` introduced stricter checks on what `.arch` can be used
in 64-bit mode and started failing the build as:

$ as-2.42 --64 -o entry32-16-debug.o entry32-16-debug.s
purgatory/arch/i386/entry32-16-debug.S: Assembler messages:
purgatory/arch/i386/entry32-16-debug.S:28: Error: 64bit mode not supported 
on `i386'.

The change moves `.code32` before `.arch 386` as suggested in
https://sourceware.org/PR31319

Signed-off-by: Sergei Trofimovich 
---
 purgatory/arch/i386/entry32-16-debug.S | 2 +-
 purgatory/arch/i386/entry32-16.S   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/purgatory/arch/i386/entry32-16-debug.S 
b/purgatory/arch/i386/entry32-16-debug.S
index 5167944..297d6f5 100644
--- a/purgatory/arch/i386/entry32-16-debug.S
+++ b/purgatory/arch/i386/entry32-16-debug.S
@@ -25,10 +25,10 @@
.globl entry16_debug_pre32
.globl entry16_debug_first32
.globl entry16_debug_old_first32
+   .code32
.arch i386
.balign 16
 entry16_debug:
-   .code32
/* Compute where I am running at (assumes esp valid) */
call1f
 1: popl%ebx
diff --git a/purgatory/arch/i386/entry32-16.S b/purgatory/arch/i386/entry32-16.S
index c051aab..7a84565 100644
--- a/purgatory/arch/i386/entry32-16.S
+++ b/purgatory/arch/i386/entry32-16.S
@@ -20,10 +20,10 @@
 #undef i386
.text
.globl entry16, entry16_regs
+   .code32
.arch i386
.balign 16
 entry16:
-   .code32
/* Compute where I am running at (assumes esp valid) */
call1f
 1: popl%ebx
-- 
2.43.0


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Re: [PATCH] kexec-tools: purgatory: fix build on `binutils-2.42`

2024-01-31 Thread Baoquan He
On 01/31/24 at 10:05am, Sergei Trofimovich wrote:
> `binutils-2.42` introduced stricter checks on what `.arch` can be used
> in 64-bit mode and started failing the build as:
> 
> $ as-2.42 --64 -o entry32-16-debug.o entry32-16-debug.s
> purgatory/arch/i386/entry32-16-debug.S: Assembler messages:
> purgatory/arch/i386/entry32-16-debug.S:28: Error: 64bit mode not 
> supported on `i386'.
> 
> The change moves `.code32` before `.arch 386` as suggested in
> https://sourceware.org/PR31319

I am not familiar with the gas behaviour, the fix sounds good from
discussion in above link.

Reviewed-by: Baoquan He 

> 
> Signed-off-by: Sergei Trofimovich 
> ---
>  purgatory/arch/i386/entry32-16-debug.S | 2 +-
>  purgatory/arch/i386/entry32-16.S   | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/purgatory/arch/i386/entry32-16-debug.S 
> b/purgatory/arch/i386/entry32-16-debug.S
> index 5167944..297d6f5 100644
> --- a/purgatory/arch/i386/entry32-16-debug.S
> +++ b/purgatory/arch/i386/entry32-16-debug.S
> @@ -25,10 +25,10 @@
>   .globl entry16_debug_pre32
>   .globl entry16_debug_first32
>   .globl entry16_debug_old_first32
> + .code32
>   .arch i386
>   .balign 16
>  entry16_debug:
> - .code32
>   /* Compute where I am running at (assumes esp valid) */
>   call1f
>  1:   popl%ebx
> diff --git a/purgatory/arch/i386/entry32-16.S 
> b/purgatory/arch/i386/entry32-16.S
> index c051aab..7a84565 100644
> --- a/purgatory/arch/i386/entry32-16.S
> +++ b/purgatory/arch/i386/entry32-16.S
> @@ -20,10 +20,10 @@
>  #undef i386  
>   .text
>   .globl entry16, entry16_regs
> + .code32
>   .arch i386
>   .balign 16
>  entry16:
> - .code32
>   /* Compute where I am running at (assumes esp valid) */
>   call1f
>  1:   popl%ebx
> -- 
> 2.43.0
> 


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