Philippe Waroquiers f05d0d0969 patch fixing 297991: mmap changing a file descriptor current position ...

Bug caused by the following problem:
for each mmap, Valgrind reads the 1st 1024 bytes to detect
if this is an mmap-ed file containing debug info to decode.

Reading this 1Kb is done with VG_(pread). VG_(pread) should be
the equivalent of syscall pread but on linux, it is implemented as
a seek+read. 

The patch implements VG_(pread) in terms of the underlying pread syscall.

Test mmap_fcntl_bug.c completed to also verify the fd current position
before and after the mmap. 

tested on linux x86/amd64/ppc32/ppc64/s390.
(not tested on Darwin)
(manually tested on arm-android)



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12504

2012-04-13 23:07:29 +00:00

..

docs

More docs build tweaks:

2009-08-05 08:08:18 +00:00

tests

patch fixing 297991: mmap changing a file descriptor current position

2012-04-13 23:07:29 +00:00

Makefile.am

Merged the MACOSX106 branch to the trunk. Merge command:

2010-07-01 00:20:20 +00:00

nl_main.c

Update all copyright dates, from 20xy-2010 to 20xy-2011.

2011-10-23 07:32:08 +00:00