diff options
Diffstat (limited to 'stap.1.in')
| -rw-r--r-- | stap.1.in | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -224,6 +224,15 @@ version of the target kernel (as optionally overridden by the option) compares to the given version string. The comparison is performed by the glibc function .BR strverscmp . +As a special case, if the operator is for simple equality +.RB ( == ), +or inequality +.RB ( != ), +and the third part contains any wildcard characters +.RB ( * " or " ? " or " [ ")," +then the expression is treated as a wildcard (mis)match as evaluated +by +.BR fnmatch . .PP If, on the other hand, the first part is the identifier .BR arch @@ -231,7 +240,7 @@ to refer to the processor architecture, then the second part then the second part is one of the two string comparison operators .BR == " or " != , and the third part is a string literal for matching it. This -comparison is simple string (in)equality. +comparison is a wildcard (mis)match. .PP Otherwise, the CONDITION is expected to be a comparison between two string literals or two numeric literals. In this case, the arguments are the only @@ -249,7 +258,7 @@ The following code might adapt to hypothetical kernel version drift: .SAMPLE probe kernel.function ( %( kernel_v <= "2.6.12" %? "__mm_do_fault" %: - %( kernel_vr == "2.6.13\-1.8273FC3smp" %? "do_page_fault" %: + %( kernel_vr == "2.6.13*smp" %? "do_page_fault" %: UNSUPPORTED %) %) ) { /* ... */ } |