| c474069560175a011af75868e0cbe66a6646f8a1 |
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25-May-2015 |
philippe <philippe@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Some platforms such as x86 and amd64 have efficient unaligned access.
On these platforms, implement read_/write_<type> by doing a direct
access, rather than calling a function that will read or write
'byte per byte'.
For platforms that do not have efficient unaligned access,
or that do not support at all unaligned access, call function
readUAS_/writeUAS_<type> that works as before.
Currently, direct acecss is activated only for x86 and amd64.
Unclear what other platforms support (efficiently) unaligned access.
On unwind intensive code (such as perf/memrw on amd64), this patch
gives up to 5% improvement.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15290 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 46cc04521acf2827eb33310fadc119bf2dc039e4 |
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25-Oct-2014 |
florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Merge r14202 from the BUF_REMOVAL branch to trunk.
This patch changes the interface and behaviour of VG_(demangle) and
VG_(maybe_Z_demangle). Instead of copying the demangled name into a
fixed sized buffer that is passed in from the caller (HChar *buf, Int n_buf),
the demangling functions will now return a pointer to the full-length
demangled name (HChar **result). It is the caller's responsiblilty to
make a copy if needed.
This change in function parameters ripples upward
- first: to get_sym_name
- then to the convenience wrappers
- VG_(get_fnname)
- VG_(get_fnname_w_offset)
- VG_(get_fnname_if_entry)
- VG_(get_fnname_raw)
- VG_(get_fnname_no_cxx_demangle)
- VG_(get_datasym_and_offset)
The changes in foComplete then forces the arguments of
- VG_(get_objname) to be changed as well
There are some issues regarding the ownership and persistence of
character strings to consider.
In general, the returned character string is owned by "somebody else"
which means the caller must not free it. Also, the caller must not
modify the returned string as it possibly points to read only memory.
Additionally, the returned string is not necessarily persistent. Here are
the scenarios:
- the returned string is a demangled function name in which case the
memory holding the string will be freed when the demangler is called again.
- the returned string hangs off of a DebugInfo structure in which case
it will be freed when the DebugInfo is discarded
- the returned string hangs off of a segment in the address space manager
in which case it may be overwritten when the segment is merged with
another segment
So the rule of thunb here is: if in doubt strdup the string.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14664 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 518850bf0da07ed3e2244e307268ae0fd80e93a8 |
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23-Oct-2014 |
florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Constify coregrind.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14656 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| bf0ea23aef2a2a1c5aac02ada367ca6f983cbcb7 |
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14-Sep-2014 |
florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
ML_(dinfo_zalloc/strdup) never return NULL. Remove pointless
asserts at call sites.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14534 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 0b9d0646949bd382758763664d3bf2d6115993ae |
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30-Jun-2014 |
philippe <philippe@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Implement VG_(arena_realloc_shrink) similar to realloc, but can
only decrease the size of a block, does not change the address,
does not need to alloc another block and copy the memory,
and (if big enough) makes the excess memory available for other
allocations.
VG_(arena_realloc_shrink) is then used for debuginfo storage.c
(replacing an allocation + copy).
Also use it in the dedup pool, to recuperate the unused
memory of the last pool.
This also allows to re-increase the string pool size to the original
3.9.0 value of 64Kb. All this slightly decrease the peak and in use
memory of dinfo.
VG_(arena_realloc_shrink) will also be used to implement (in another patch)
a dedup pool which "numbers" the allocated elements.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14122 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 0f157ddb404bcde7815a1c5bf2d7e41c114f3d73 |
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18-Oct-2013 |
sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Update copyright dates (20XY-2012 ==> 20XY-2013)
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13658 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 535fb1b49a80f2e880f755ee618381de3e222ddf |
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15-Sep-2013 |
florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Fix coregrind header files such that they can be included without
having to worry what other header files may have to be included
beforehand.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13549 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 1636d33c13958b9c0e7d3059cdd5005746418eb2 |
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15-Nov-2012 |
florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Char/HChar fixups for m_debuginfo and m_gdbserver.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13122 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 54fe2021b87b9e5edb8ec8070f47b86d5cafb8aa |
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28-Oct-2012 |
florian <florian@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Char/HChar and constness fixes. Mostly cost center
on allocators which is always a const HChar *
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13089 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 03f8d3fc25f5a45c5826259d1b33b7f310117279 |
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05-Aug-2012 |
sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Update copyright dates to include 2012.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12843 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| ec062e8d96a361af9905b5447027819dfbfee01a |
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23-Oct-2011 |
sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Update all copyright dates, from 20xy-2010 to 20xy-2011.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12206 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 86781fabbfc019b752f9605e487cfce77b2a592a |
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05-Oct-2011 |
tom <tom@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
More fixes for unaligned accesses in the debuginfo code. BZ#282527.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12102 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| fd892fc2654e6eae5e40f401a230e0fb80d6362f |
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02-Oct-2011 |
tom <tom@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Add read_Addr and use it so that we work on systems where an address
is bigger that an int.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12084 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| d32fb2b481ee4eda50a62e49d25199e0174940e0 |
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02-Oct-2011 |
tom <tom@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Move read_<type> routines from readdwarf.c to be module level
routines in misc.c so that other parts of the debuginfo module
can access them.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12081 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 9eecbbb9a9cbbd30b903c09a9e04d8efc20bda33 |
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03-May-2010 |
sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Update copyright dates to 2010.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11121 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 9f207460d70d38c46c9e81996a3dcdf90961c6db |
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10-Mar-2009 |
njn <njn@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Updated copyright years.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9344 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 50fde23467d92281b32dd537d0d9a590263628c3 |
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20-Oct-2008 |
sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Dwarf3 variable & type reader: use 64-bit numbers throughout to
represent the sizes of types, even on 32-bit hosts, where a type with
a size >= 2^32 is, well, if not meaningless, then at least impossible
to instantiate. This is of course motivated by reality .. on ppc32
SUSE11.0, the debuginfo for glibc-2.8 appears to contain a declaration
amounting to
char __EH_FRAME_BEGIN__ [4294967296]
Really.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8683 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 9c606bd8634cd6b67bb41fa645b5c639668cfa2d |
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18-Sep-2008 |
sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Merge all remaining changes from branches/PTRCHECK. These are some
relatively minor extensions to m_debuginfo, a major overhaul of
m_debuginfo/readdwarf3.c to get its space usage under control, and
changes throughout the system to enable heap-use profiling.
The majority of the merged changes were committed into
branches/PTRCHECK as the following revs: 8591 8595 8598 8599 8601 and
8161.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8621 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| 5dd8e6ab3b998e323eb293e561b62505a44f3144 |
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22-Mar-2008 |
bart <bart@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Moved macro's that specify branch prediction hints to include/pub_tool_basics.h
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7745 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
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| b8b79addf04dd5d0b558916e26df0b1927cbd758 |
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03-Mar-2008 |
sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> |
Merge in the DATASYMS branch.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7540 a5019735-40e9-0310-863c-91ae7b9d1cf9
/external/valgrind/coregrind/m_debuginfo/priv_misc.h
|