| /* { dg-do compile } */ |
| /* { dg-options "-fanalyzer" } */ |
| /* { dg-require-effective-target analyzer } */ |
| |
| #include <string.h> |
| |
| #include "test-uaccess.h" |
| |
| typedef unsigned char u8; |
| typedef unsigned int u32; |
| |
| struct st |
| { |
| u8 i; /* { dg-message "padding after field 'i' is uninitialized \\(3 bytes\\)" } */ |
| u32 j; /* { dg-message "field 'j' is uninitialized \\(4 bytes\\)" } */ |
| }; |
| |
| void test (void __user *dst, u8 a) |
| { |
| struct st s; /* { dg-message "region created on stack here" "where" } */ |
| /* { dg-message "capacity: 8 bytes" "capacity" { target *-*-* } .-1 } */ |
| /* { dg-message "suggest forcing zero-initialization by providing a '.0.' initializer" "fix-it hint" { target *-*-* } .-2 } */ |
| s.i = a; |
| copy_to_user(dst, &s, sizeof (struct st)); /* { dg-warning "potential exposure of sensitive information by copying uninitialized data from stack" "warning" } */ |
| /* { dg-message "7 bytes are uninitialized" "note how much" { target *-*-* } .-1 } */ |
| } |
