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%( arch == "i386" %? global ir = "eax", lr = "eax" %)
%( arch == "x86_64" %? global ir = "eax", lr = "rax" %)
%( arch == "powerpc" %? global ir = "r3", lr = "r3" %)
%( arch == "s390" %? global ir = "r2", lr = "r2" %)
%( arch == "arm" %? global ir = "r0", lr = "r0" %)
# On s390/s390x, when in a syscall, the 1st argument is in the
# orig_gpr2 register. If you aren't in a syscall, the 1st argument is
# in r2. The s390 *_arg() function assumes we're in a syscall. Since
# we aren't in the testcase, it returns the wrong value. So instead,
# grab the value from r2.
probe module("systemtap-test-module2").function("yyy_int") {
printf("yyy_int %d %d %d\n",
%( arch == "s390" %? register("r2") %: int_arg(1) %),
int_arg(2), int_arg(3))
}
probe module("systemtap-test-module2").function("yyy_int").return {
printf("yyy_int returns %d\n", register(ir))
}
probe module("systemtap-test-module2").function("yyy_uint") {
printf("yyy_uint %d %d %d\n",
%( arch == "s390" %? u_register("r2") %: uint_arg(1) %),
uint_arg(2), uint_arg(3))
}
probe module("systemtap-test-module2").function("yyy_uint").return {
printf("yyy_uint returns %d\n", u_register(ir))
}
probe module("systemtap-test-module2").function("yyy_long") {
printf("yyy_long %d %d %d\n",
%( arch == "s390" %? register("r2") %: long_arg(1) %),
long_arg(2), long_arg(3))
}
probe module("systemtap_test-module2").function("yyy_long").return {
printf("yyy_long returns %d\n", register(lr))
}
probe module("systemtap-test_module2").function("yyy_int64") {
# On i386, kernel is built with -mregparm=3. The first arg occupies the
# first two registers. The 2nd arg is not split between the 3rd register
# and the stack, but rather passed entirely on the stack.
printf("yyy_int64 %d %d %d\n",
%( arch == "i386" %?
s64_arg(1), s64_arg(4), s64_arg(6)
%:
%( arch == "s390" %? register("r2") %: s64_arg(1) %),
s64_arg(2), s64_arg(3)
%)
)
}
probe module("systemtap_test_module2").function("yyy_int64").return {
printf("yyy_int64 returns %d\n", register(ir))
}
probe module("systemtap_test_module2").function("yyy_char") {
printf("yyy_char %1b %1b %1b\n",
%( arch == "s390" %? register("r2") %: int_arg(1) %),
int_arg(2), int_arg(3))
}
probe module("systemtap_test_module2").function("yyy_char").return {
printf("yyy_char returns %1b\n", register(ir))
}
probe module("systemtap_test_module2").function("yyy_str") {
printf("yyy_str %s-%s-%s\n",
kernel_string(%( arch == "s390" %? u_register("r2")
%: pointer_arg(1) %)),
kernel_string(pointer_arg(2)), kernel_string(pointer_arg(3)))
}
probe module("systemtap_test_module2").function("yyy_str").return {
printf("yyy_str returns %s\n", kernel_string(register(lr)))
}
probe begin {
printf("READY\n")
}
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