On Tue, 2012-08-14 at 10:20 +0000, Adishesh wrote:
> Hi,
>
> I have used below program for testing. Below are the steps I have
> followed.
> Compile: gcc -g3 test_shm.c -o test_shm
> Create shared memory: ./test_shm –c
> Get shared memory without valgrind: ./test_shm –g ( this works fine)
> Get with valgrind: /usr/bin/valgrind --tool=memcheck --leak-check=full
> --track-origins=yes --log-file=/tmp/val_log /home/rtp99/test_shm –g
> With valgrind shmat command fails.
Can you try again after applying the attached patch ?
Thanks
Philippe
Index: coregrind/m_syswrap/syswrap-generic.c
===================================================================
--- coregrind/m_syswrap/syswrap-generic.c (revision 12872)
+++ coregrind/m_syswrap/syswrap-generic.c (working copy)
@@ -1700,7 +1700,7 @@
/* ------ */
static
-UInt get_shm_size ( Int shmid )
+SizeT get_shm_size ( Int shmid )
{
#ifdef __NR_shmctl
# ifdef VKI_IPC_64
@@ -1725,7 +1725,7 @@
if (sr_isError(__res))
return 0;
- return buf.shm_segsz;
+ return (SizeT) buf.shm_segsz;
}
UWord
@@ -1733,7 +1733,7 @@
UWord arg0, UWord arg1, UWord arg2 )
{
/* void *shmat(int shmid, const void *shmaddr, int shmflg); */
- UInt segmentSize = get_shm_size ( arg0 );
+ SizeT segmentSize = get_shm_size ( arg0 );
UWord tmp;
Bool ok;
if (arg1 == 0) {
@@ -1768,7 +1768,7 @@
UWord res,
UWord arg0, UWord arg1, UWord arg2 )
{
- UInt segmentSize = VG_PGROUNDUP(get_shm_size(arg0));
+ SizeT segmentSize = VG_PGROUNDUP(get_shm_size(arg0));
if ( segmentSize > 0 ) {
UInt prot = VKI_PROT_READ|VKI_PROT_WRITE;
Bool d;
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