http://llvm.org/bugs/show_bug.cgi?id=5465
Summary: malloc() fails to fail correctly at -O1 or above
Product: clang
Version: 2.6
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Basic
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
consider the following:
$ cat test.c
#include <stdlib.h>
#include <stdio.h>
int main() {
size_t size = 0;
size = ~size;
int * a = malloc(size);
if(a)
printf("Successfully allocated %lX bytes of memory at %lX.\n",size,a);
else
printf("Failed to allocate %lX bytes of memory.\n",size);
}
$ clang -O0 test.c -o test.O0 && ./test.O0
Failed to allocate FFFFFFFFFFFFFFFF bytes of memory.
$ clang -O1 test.c -o test.O1 && ./test.O1
Successfully allocated FFFFFFFFFFFFFFFF bytes of memory at 7FD4D15BA010.
distro is Gentoo ~amd64. glibc is version 2.11 and compiled with gcc.
Apologies if this is a dupe, or caused by gcc compiled glibc conflicts. I'm not
quite sure exactly what to search for, but searching for 'malloc' didn't appear
to find anything relevant.
--
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
