Le 08/06/2020 à 18:43, Filip Bozuta a écrit :
> From: Filip Bozuta <filip.boz...@syrmia.com>
>
> Structure "struct syscallname" in file "strace.c" is used for "-strace"
> to print arguments and return values of syscalls. The last field of
> this structure "result" represents the calling function that prints the
> return values. This field was extended in this patch so that this
> functions
> takes all syscalls arguments beside the return value. In this way, it
> enables
> "-strace" to print arguments of syscalls that have changed after the
> syscall
> execution. This extension will be useful as there are many syscalls that
> return values inside their arguments (i.e. listxattr() that returns the
> list
> of extended attributes inside the "list" argument).
>
> Implementation notes:
>
> Since there are already three existing "print_syscall_ret*" functions
> inside
> "strace.c" ("print_syscall_ret_addr()", "print_syscall_ret_adjtimex()",
> "print_syscall_ret_newselect()"), they were changed to have all syscall
> arguments
> beside the return value. This was done so that these functions don't
> cause build
> errors (even though syscall arguments are not used in these functions).
>
> Signed-off-by: Filip Bozuta <filip.boz...@syrmia.com>
> ---
> linux-user/qemu.h | 4 +++-
> linux-user/strace.c | 24 ++++++++++++++++++------
> linux-user/syscall.c | 2 +-
> 3 files changed, 22 insertions(+), 8 deletions(-)
>
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
