diff options
| author | Filip Bozuta <Filip.Bozuta@syrmia.com> | 2020-07-02 18:09:15 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2020-08-23 16:57:58 +0200 |
| commit | 664441ea0111ef4dc68510d87b89b983ef838500 (patch) | |
| tree | b2c183e1cd57f3941e5dd13230ed15e3d92b6fa1 | |
| parent | d7df0ceee0fd2e512cd214a9074ebeeb40da3099 (diff) | |
linux-user: Fix "print_fdset()" in "strace.c" to not print ", " after last value
Function "print_fdset()" in "strace.c" is used to print the file descriptor
values in "print__newselect()" which prints arguments of syscall _newselect().
Until changes from this patch, this function was printing "," even after the
last value of the fd_set argument. This was changed in this patch by removing
this unnecessary "," after the last fd value and thus improving the estetics of
the _newselect() "-strace" print.
Implementation notes:
The printing fix was made possible by using an existing function "get_comma()"
which returns a "," or an empty string "" based on its argument (0 for "," and
other for "").
Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200702160915.9517-1-Filip.Bozuta@syrmia.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| -rw-r--r-- | linux-user/strace.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/linux-user/strace.c b/linux-user/strace.c index 13981341b3..5e38048643 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -541,6 +541,7 @@ static void print_fdset(int n, abi_ulong target_fds_addr) { int i; + int first = 1; qemu_log("["); if( target_fds_addr ) { @@ -555,9 +556,12 @@ print_fdset(int n, abi_ulong target_fds_addr) return; for (i=n; i>=0; i--) { - if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> (i & (TARGET_ABI_BITS - 1))) & 1) - qemu_log("%d,", i); + if ((tswapal(target_fds[i / TARGET_ABI_BITS]) >> + (i & (TARGET_ABI_BITS - 1))) & 1) { + qemu_log("%s%d", get_comma(first), i); + first = 0; } + } unlock_user(target_fds, target_fds_addr, 0); } qemu_log("]"); |