diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/attr-alloc_size.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/attr-alloc_size.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/attr-alloc_size.c b/gcc/testsuite/gcc.dg/attr-alloc_size.c new file mode 100644 index 000000000..47d7c0050 --- /dev/null +++ b/gcc/testsuite/gcc.dg/attr-alloc_size.c @@ -0,0 +1,36 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -Wall" } */ + +extern void abort (void); + +#include "../gcc.c-torture/execute/builtins/chk.h" + +extern char *mallocminus1(int size) __attribute__((alloc_size(-1))); /* { dg-warning "parameter outside range" } */ +extern char *malloc0(int size) __attribute__((alloc_size(0))); /* { dg-warning "parameter outside range" } */ +extern char *malloc1(int size) __attribute__((alloc_size(1))); +extern char *malloc2(int empty, int size) __attribute__((alloc_size(2))); +extern char *calloc1(int size, int elements) __attribute__((alloc_size(1,2))); +extern char *calloc2(int size, int empty, int elements) __attribute__((alloc_size(1,3))); +extern char *balloc1(void *size) __attribute__((alloc_size(1))); + +void +test (void) +{ + char *p; + + p = malloc0 (6); + strcpy (p, "Hello"); + p = malloc1 (6); + strcpy (p, "Hello"); + strcpy (p, "Hello World"); /* { dg-warning "will always overflow" "strcpy" } */ + p = malloc2 (__INT_MAX__ >= 1700000 ? 424242 : __INT_MAX__ / 4, 6); + strcpy (p, "World"); + strcpy (p, "Hello World"); /* { dg-warning "will always overflow" "strcpy" } */ + p = calloc1 (2, 5); + strcpy (p, "World"); + strcpy (p, "Hello World"); /* { dg-warning "will always overflow" "strcpy" } */ + p = calloc2 (2, __INT_MAX__ >= 1700000 ? 424242 : __INT_MAX__ / 4, 5); + strcpy (p, "World"); + strcpy (p, "Hello World"); /* { dg-warning "will always overflow" "strcpy" } */ +} + |