Avoids the memset if the allocator has gotten new zeroed
storage from the operating system.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
No functional change. Bonus: looks just like qemu_malloc() now.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
qemu_malloc() does not allow size=0 to be passed in and aborts on this behavior.
Unfortunately, there is good reason to believe that within qemu, there are a
number of, so far, undetected places that assume size=0 can be safely passed.
Since we do not want to abort unnecessarily in production builds, return
qemu_malloc(1) whenever the version file indicates that this is a production
build.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
For qemu_realloc with size == 0 a result of NULL is perfectly fine
Signed-off-by: Kevin Wolf <kwolf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6615 c046a42c-6fe2-441c-8c8c-71466251a162
So that we can get a core dump with a stack trace.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6542 c046a42c-6fe2-441c-8c8c-71466251a162
Memory allocation failures are a very rare condition on virtual-memory
hosts. They are also very difficult to handle correctly (especially in a
hardware emulation context). Because of this, it is better to gracefully
terminate emulation rather than executing untested or even unwritten recovery
code paths.
This patch changes the qemu memory allocation routines to terminate emulation
if an allocation failure is encountered.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6526 c046a42c-6fe2-441c-8c8c-71466251a162
Also optimise qemu_strdup by using memcpy - using pstrcpy is usually
suboptimal.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5653 c046a42c-6fe2-441c-8c8c-71466251a162
qemu_strdup() doesn't copy a last character because of off by one error.
Signed-off-by: Gleb Natapov <gleb@qumranet.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5086 c046a42c-6fe2-441c-8c8c-71466251a162
