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Re: [PATCH 2/4] linux-user/mips64: Support o32 ABI syscalls
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From: |
Philippe Mathieu-Daudé |
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Subject: |
Re: [PATCH 2/4] linux-user/mips64: Support o32 ABI syscalls |
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Date: |
Thu, 17 Dec 2020 17:10:24 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 |
On 12/17/20 11:40 AM, Laurent Vivier wrote:
> Le 19/11/2020 à 17:17, Philippe Mathieu-Daudé a écrit :
>> o32 ABI syscalls start at offset 4000.
>>
>> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
>> ---
>> linux-user/mips64/syscall_nr.h | 5 ++++-
>> 1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/linux-user/mips64/syscall_nr.h b/linux-user/mips64/syscall_nr.h
>> index 672f2fa51cb..6579421fa63 100644
>> --- a/linux-user/mips64/syscall_nr.h
>> +++ b/linux-user/mips64/syscall_nr.h
>> @@ -1,4 +1,7 @@
>> -#ifdef TARGET_ABI_MIPSN32
>> +#if defined(TARGET_ABI_MIPSO32)
>> +#define TARGET_SYSCALL_OFFSET 4000
>
> The value of the offset is hardcoded in linux-user/mips/meson.build, so
> either you remove
> TARGET_SYSCALL_OFFSET here or you update meson.build to use it.
I don't understand what this Meson rule does, as this
doesn't work without this patch...
You can download PS2 64-bit O32 binaries from 2002 (before
the official MIPS TLS ABI) there:
https://sourceforge.net/projects/kernelloader/files/
>
>> +#include "syscall_o32_nr.h"
>> +#elif defined(TARGET_ABI_MIPSN32)
>> #define TARGET_SYSCALL_OFFSET 6000
>> #include "syscall_n32_nr.h"
>> #else
>>
>
> Thanks,
> Laurent
>