[PATCH] syscall.2: correct registers for arm/EABI

[PATCH] syscall.2: correct registers for arm/EABI

[Johan Erlandsson]

Registers was off by one.

Reference:
http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=3105/4
---
 man2/syscall.2 |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/man2/syscall.2 b/man2/syscall.2
index 1cca9ce..a4a243d 100644
--- a/man2/syscall.2
+++ b/man2/syscall.2
@@ -156,7 +156,7 @@ l l1 l l1 l.
 arch/ABI       instruction     syscall #       retval  Notes
 _
 arm/OABI       swi NR  -       a1      NR is syscall #
-arm/EABI       swi 0x0 r7      r1
+arm/EABI       swi 0x0 r7      r0
 blackfin       excpt 0x0       P0      R0
 i386   int $0x80       eax     eax
 ia64   break 0x100000  r15     r10/r8
@@ -181,7 +181,7 @@ l l l l l l l l.
 arch/ABI       arg1    arg2    arg3    arg4    arg5    arg6    arg7
 _
 arm/OABI       a1      a2      a3      a4      v1      v2      v3
-arm/EABI       r1      r2      r3      r4      r5      r6      r7
+arm/EABI       r0      r1      r2      r3      r4      r5      r6
 blackfin       R0      R1      R2      R3      R4      R5      -
 i386   ebx     ecx     edx     esi     edi     ebp     -
 ia64   r11     r9      r10     r14     r15     r13     -
-- 
1.7.9.5
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Re: [PATCH] syscall.2: correct registers for arm/EABI

[Michael Kerrisk (man-pages)]

[CC += Mike F]

On Fri, Aug 9, 2013 at 1:59 AM, Johan Erlandsson <jeoerl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Registers was off by one.

I'd like some more eyes on this. Mike, does this look good to you?

Cheers,

Michael


> Reference:
> http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=3105/4
> ---
>  man2/syscall.2 |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/man2/syscall.2 b/man2/syscall.2
> index 1cca9ce..a4a243d 100644
> --- a/man2/syscall.2
> +++ b/man2/syscall.2
> @@ -156,7 +156,7 @@ l l1 l l1 l.
>  arch/ABI       instruction     syscall #       retval  Notes
>  _
>  arm/OABI       swi NR  -       a1      NR is syscall #
> -arm/EABI       swi 0x0 r7      r1
> +arm/EABI       swi 0x0 r7      r0
>  blackfin       excpt 0x0       P0      R0
>  i386   int $0x80       eax     eax
>  ia64   break 0x100000  r15     r10/r8
> @@ -181,7 +181,7 @@ l l l l l l l l.
>  arch/ABI       arg1    arg2    arg3    arg4    arg5    arg6    arg7
>  _
>  arm/OABI       a1      a2      a3      a4      v1      v2      v3
> -arm/EABI       r1      r2      r3      r4      r5      r6      r7
> +arm/EABI       r0      r1      r2      r3      r4      r5      r6
>  blackfin       R0      R1      R2      R3      R4      R5      -
>  i386   ebx     ecx     edx     esi     edi     ebp     -
>  ia64   r11     r9      r10     r14     r15     r13     -
> --
> 1.7.9.5



-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/
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Re: [PATCH] syscall.2: correct registers for arm/EABI

[Michael Kerrisk (man-pages)]

On 08/09/13 09:41, Michael Kerrisk (man-pages) wrote:
> [CC += Mike F]
> 
> On Fri, Aug 9, 2013 at 1:59 AM, Johan Erlandsson <jeoerl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> Registers was off by one.
> 
> I'd like some more eyes on this. Mike, does this look good to you?

So, looking at this again, the proposed patch certainly seems consistent with
various other sources, e.g.:

http://peterdn.com/post/e28098Hello-World!e28099-in-ARM-assembly.aspx
https://wiki.debian.org/ArmEabiPort
http://en.wikipedia.org/wiki/Calling_convention#ARM

Patch applied.

Cheers,

Michael


>> Reference:
>> http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=3105/4
>> ---
>>  man2/syscall.2 |    4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/man2/syscall.2 b/man2/syscall.2
>> index 1cca9ce..a4a243d 100644
>> --- a/man2/syscall.2
>> +++ b/man2/syscall.2
>> @@ -156,7 +156,7 @@ l l1 l l1 l.
>>  arch/ABI       instruction     syscall #       retval  Notes
>>  _
>>  arm/OABI       swi NR  -       a1      NR is syscall #
>> -arm/EABI       swi 0x0 r7      r1
>> +arm/EABI       swi 0x0 r7      r0
>>  blackfin       excpt 0x0       P0      R0
>>  i386   int $0x80       eax     eax
>>  ia64   break 0x100000  r15     r10/r8
>> @@ -181,7 +181,7 @@ l l l l l l l l.
>>  arch/ABI       arg1    arg2    arg3    arg4    arg5    arg6    arg7
>>  _
>>  arm/OABI       a1      a2      a3      a4      v1      v2      v3
>> -arm/EABI       r1      r2      r3      r4      r5      r6      r7
>> +arm/EABI       r0      r1      r2      r3      r4      r5      r6
>>  blackfin       R0      R1      R2      R3      R4      R5      -
>>  i386   ebx     ecx     edx     esi     edi     ebp     -
>>  ia64   r11     r9      r10     r14     r15     r13     -
>> --
>> 1.7.9.5
> 
> 
> 

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