| Summary: | Retrieving variables from marker locations in stap broken on x86_64 (cfa_ops not found) | ||
|---|---|---|---|
| Product: | systemtap | Reporter: | Mark Wielaard <mark> |
| Component: | translator | Assignee: | Unassigned <systemtap> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | ||
| Priority: | P2 | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Host: | Target: | ||
| Build: | Last reconfirmed: | ||
Tracked down to what looks like a typo in elfutils/libdwfl/fde.c: https://fedorahosted.org/pipermail/elfutils-devel/2010-February/000816.html Fixed in elfutils 0.145 |
$ ./run-stap -ve 'probe process("./stap").mark("pass0__start") { println($s) }' -p2 Pass 1: parsed user script and 65 library script(s) using 83484virt/20204res/2252shr kb, in 100usr/10sys/100real ms. semantic error: No cfa_ops supplied, but needed by DW_OP_call_frame_cfa: identifier '$s' at <input>:1:56 source: probe process("./stap").mark("pass0__start") { println($s) } ^ Pass 2: analyzed script: 1 probe(s), 0 function(s), 0 embed(s), 0 global(s) using 98296virt/22900res/3516shr kb, in 0usr/0sys/74real ms. Pass 2: analysis failed. Try again with another '--vp 01' option. Compiled with gcc (GCC) 4.4.2 20091222 (Red Hat 4.4.2-20) The same works fine on i386.