diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/analyzer/out-of-bounds-diagram-1-ascii.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/analyzer/out-of-bounds-diagram-1-ascii.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/analyzer/out-of-bounds-diagram-1-ascii.c b/gcc/testsuite/gcc.dg/analyzer/out-of-bounds-diagram-1-ascii.c new file mode 100644 index 0000000..5e6eadc --- /dev/null +++ b/gcc/testsuite/gcc.dg/analyzer/out-of-bounds-diagram-1-ascii.c @@ -0,0 +1,55 @@ +/* { dg-additional-options "-fdiagnostics-show-path-depths" } */ +/* { dg-additional-options "-fdiagnostics-path-format=inline-events -fdiagnostics-show-caret" } */ +/* { dg-additional-options "-fdiagnostics-text-art-charset=ascii" } */ + +#include <stdint.h> + +int32_t arr[10]; + +void int_arr_write_element_after_end_off_by_one(int32_t x) +{ + arr[10] = x; /* { dg-line line } */ +} +/* { dg-warning "buffer overflow" "warning" { target *-*-* } line } */ +/* { dg-message "valid subscripts for 'arr' are '\\\[0\\\]' to '\\\[9\\\]'" "valid subscript note" { target *-*-* } line } */ + + +/* { dg-begin-multiline-output "" } + arr[10] = x; + ~~~~~~~~^~~ + event 1 (depth 0) + | + | int32_t arr[10]; + | ^~~ + | | + | (1) capacity: 40 bytes + | + +--> 'int_arr_write_element_after_end_off_by_one': event 2 (depth 1) + | + | arr[10] = x; + | ~~~~~~~~^~~ + | | + | (2) out-of-bounds write from byte 40 till byte 43 but 'arr' ends at byte 40 + | + { dg-end-multiline-output "" } */ + +/* { dg-begin-multiline-output "" } + + +--------------------------------+ + |write from 'x' (type: 'int32_t')| + +--------------------------------+ + | + | + v + +--------+-----------------+---------++--------------------------------+ + | [0] | ... | [9] || | + +--------+-----------------+---------+| after valid range | + | 'arr' (type: 'int32_t[10]') || | + +------------------------------------++--------------------------------+ + |~~~~~~~~~~~~~~~~~+~~~~~~~~~~~~~~~~~~||~~~~~~~~~~~~~~~+~~~~~~~~~~~~~~~~| + | | + +---------+--------+ +---------+---------+ + |capacity: 40 bytes| |overflow of 4 bytes| + +------------------+ +-------------------+ + + { dg-end-multiline-output "" } */ |