This is the mail archive of the systemtap@sourceware.org mailing list for the systemtap project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[Bug translator/6950] buildok/twentyfive.stp fails with elfutils 0.137


------- Additional Comments From mjw at redhat dot com  2008-11-12 20:40 -------
Oneline reproducer:

$ stap -e 'probe module("ext3").function("ext3_check_dir_entry")
{print($ext3_filetype_table)}'

semantic error: libdwfl failure (dwfl_getmodules): no error while resolving
probe point module("ext3").function("ext3_check_dir_entry")
Pass 2: analysis failed.  Try again with more '-v' (verbose) options.

Adding some stap -vvv will give (at the end):
[...]
focused on module 'ext3 = [0x559f200-0x55c2051, bias 0x0] file
/usr/lib/debug/lib/modules/2.6.18-92.1.13.el5/kernel/fs/ext3/ext3.ko.debug ELF
machine x86_64 (code 62)
focused on module 'ext3'
selected function ext3_check_dir_entry
probe ext3_check_dir_entry@fs/ext3/dir.c:68 module=ext3 reloc=.text
section=.text pc=0x55a0b7c
finding location for local 'ext3_filetype_table' near address 55a0b7c, module bias 0
semantic error: libdwfl failure (dwfl_getmodules): no error while resolving
probe point module("ext3").function("ext3_check_dir_entry")

The ext3_filetype_table is defined in the same file (fs/ext3/dir.c) as the
function being probed as:

static unsigned char ext3_filetype_table[] = {
        DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
};

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=6950

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]