[PATCH] gdb fix for catch-syscall.exp

[Simon Marchi]

On 2021-11-19 19:27, Carl Love wrote:
> Simon:
> 
> On Thu, 2021-11-18 at 13:10 -0500, Simon Marchi wrote:
>>
>> Hi Carl,
>>
>> This patch causes this failure regression on Ubuntu 20.04, amd64:
>>
>> FAIL: gdb.base/catch-syscall.exp: execve: continue to main
>>
>> From gdb.log:
>>
>>  615 continue^M
>>  616 Continuing.^M
>>  617 process 2022222 is executing new program:
>> /home/smarchi/build/binutils-
>> gdb/gdb/testsuite/outputs/gdb.base/catch-syscall/catch-syscall^M
>>  618 ^M
>>  619 Catchpoint 18 (returned from syscall execve), 0x00007ffff7fd0100
>> in _start () from /lib64/ld-linux-x86-64.so.2^M
>>  620 (gdb) FAIL: gdb.base/catch-syscall.exp: execve: continue to main
>>
> 
> Interesting.  I understood that the execve call would not return to the
> caller except in the case of an error.  Not sure why it behaves
> differently on amd64 versus Power and Intel?  Let me take a look and
> see if I can create a fix with a test multiple to cover both cases.
> 
> Thanks for letting me know.
> 
>                    Carl 
> 

Did you manage to reproduce, or do you need more data from me?

Simon