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Merge revisions 14255, 14293, and 14294 from the BUF_REMOVAL branch to trunk.

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The functions VG_(get_filename) and VG_(get_filename_lineno) now return
a pointer to filename and directory name instead of copying them into
buffers passed in from the caller.
The returned strings are persistent as long as the DebugInfo to which
they belong is not discarded. The caller therefore needs to stash them
away as needed.
Function VG_(strncpy_safely) has been removed as it is no longer needed.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14668
This commit is contained in:
Florian Krohm
2014-10-27 12:06:35 +00:00
parent e3d289a56d
commit d7cc7eac99
11 changed files with 69 additions and 107 deletions
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12
include/pub_tool_debuginfo.h
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@@ -43,7 +43,7 @@
returns False. VG_(get_fnname) always
demangles C++ function names. VG_(get_fnname_w_offset) is the
same, except it appends "+N" to symbol names to indicate offsets. */
extern Bool VG_(get_filename) ( Addr a, HChar* filename, Int n_filename );
extern Bool VG_(get_filename) ( Addr a, const HChar** filename );
extern Bool VG_(get_fnname) ( Addr a, const HChar** fnname );
extern Bool VG_(get_linenum) ( Addr a, UInt* linenum );
extern Bool VG_(get_fnname_w_offset)
@@ -53,17 +53,21 @@ extern Bool VG_(get_fnname_w_offset)
optionally directory name. filename and linenum may not be NULL.
dirname may be NULL, meaning that the caller does not want
directory name info, in which case dirname_available must also be
NULL. If dirname is non-null, directory info is written to it, if
NULL. If dirname is non-null, directory info is written to *dirname, if
it is available; if not available, '\0' is written to the first
byte. In either case *dirname_available is set to indicate whether
or not directory information was available.
The character strings returned in *filename and *dirname are not
persistent. They will be freed when the DebugInfo they belong to
is discarded.
Returned value indicates whether any filename/line info could be
found. */
extern Bool VG_(get_filename_linenum)
( Addr a,
/*OUT*/HChar* filename, Int n_filename,
/*OUT*/HChar* dirname, Int n_dirname,
/*OUT*/const HChar** filename,
/*OUT*/const HChar** dirname,
/*OUT*/Bool* dirname_available,
/*OUT*/UInt* linenum );