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| author | fche <fche> | 2007-03-22 20:54:27 +0000 |
|---|---|---|
| committer | fche <fche> | 2007-03-22 20:54:27 +0000 |
| commit | 37ebca01742fea41602ecb5b471d3367a1e2c64b (patch) | |
| tree | 7aadf5c821ef9744a72ba236bfabdad745ca3d9f /NEWS | |
| parent | 41f49ea56914d10d91c292a80d864fb8cee4d6f1 (diff) | |
| download | systemtap-steved-37ebca01742fea41602ecb5b471d3367a1e2c64b.tar.gz systemtap-steved-37ebca01742fea41602ecb5b471d3367a1e2c64b.tar.xz systemtap-steved-37ebca01742fea41602ecb5b471d3367a1e2c64b.zip | |
2007-03-22 Frank Ch. Eigler <fche@elastic.org>
PR 4224.
* staptree.h (probe): Add privileged field.
* elaborate.cxx, parse.cxx: Pass privileged flag to probes.
* tapsets.cxx (dwarf_query): Add has_absolute field.
(dwarf_derived_probe ctor): Tolerate it.
(register_patterns): Expose it.
(dwarf_builder::build): Implement it with no dwfl whatsoever.
* NEWS: Document kernel.statement().absolute.
* stapprobes.5.in: Ditto.
2007-03-22 Frank Ch. Eigler <fche@elastic.org>
PR 4224.
* systemtap.base/probefunc.exp: Use kernel.statement().absolute
instead with grep-found schedule_tick address.
* semko/thirtyseven.stp, thirtyeight.stp: New tests.
* buildok/twentyeight.stp: New test.
2007-03-22 Frank Ch. Eigler <fche@elastic.org>
* sym.c (_stp_module_relocate): Tolerate empty section string.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -24,6 +24,22 @@ preemption disabled). This will allow begin/end probes to be longer, to support generating longer reports. +- The numeric forms of kernel.statement() and kernel.function() probe points + are now interpreted as relocatable values - treated as relative to the + _stext symbol in that kernel binary. Since some modern kernel images + are relocated to a different virtual address at startup, such addresses + may shift up or down when actually inserted into a running kernel. + + kernel.statement(0xdeadbeef): validated, interpreted relative to _stext, + may map to 0xceadbeef at run time. + + In order to specify unrelocated addresses, use the new ".absolute" + probe point suffix for such numeric addresses. These are only + allowed in guru mode, and provide access to no $target variables. + They don't use debugging information at all, actually. + + kernel.statement(0xfeedface).absolute: raw, unvalidated, guru mode only + * What's new since version 0.5.10? - Offline processing of debugging information, enabling general |