[gdb/testsuite] Require syscall time in gdb.reverse/time-reverse.exp
On aarch64-linux, I run into:
...
Running gdb.reverse/time-reverse.exp ...
gdb compile failed, gdb.reverse/time-reverse.c: In function 'main':
gdb.reverse/time-reverse.c:39:12: error: 'SYS_time' undeclared \
(first use in this function); did you mean 'SYS_times'?
syscall (SYS_time, &time_global);
^~~~~~~~
SYS_times
gdb.reverse/time-reverse.c:39:12: note: each undeclared identifier is \
reported only once for each function it appears in
UNTESTED: gdb.reverse/time-reverse.exp: failed to prepare
...
Fix this by adding a new proc have_syscall, and requiring syscall time, such
that we have instead:
...
UNSUPPORTED: gdb.reverse/time-reverse.exp: require failed: \
expr [have_syscall time]
...
Tested on x86_64-linux and aarch64-linux.
2 files changed
