drmemory mingw test1
Posted by Anonymous on Sat 28th Oct 2023 06:05
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modification of post by Anonymous (view diff)

/*
 * DrMemory test x1.c
 *
 * Compile with:
 * $ x86_64-w64-mingw32-gcc -g -gdwarf-2 x1.c
 *
 * Test with:
 * $ drmemory -batch -check_uninitialized -gen_suppress_syms -preload_symbols -- ./a
 */
#include <stdlib.h>
#include <string.h>
#include <stdio.h>

const int ar[] = { 5, 4, 3, 2, 1, 0 };

int main(int ac, char *av[])
{
        puts("#start");

        int *ar2 = malloc(sizeof(int)*6);
        memcpy(ar2, ar, sizeof(int)*6);

        int i;
        int j;
        for (i=0 ; i < 16 ; i++) {
                j = ar2[i];

                printf("i=");
                printf("%d\n", j);
                fflush(stdout);
        }
        puts("#end");
        return 0;
}

/*
output:
$ drmemory -batch -check_uninitialized -gen_suppress_syms -preload_symbols -- ./a
~~Dr.M~~ Dr. Memory version 2.6.0
~~Dr.M~~ Running "./a"
~~Dr.M~~ Using system call file C:\Users\roland.mainz\AppData\Roaming\Dr. Memory\symcache\syscalls_x64.txt
~~Dr.M~~
~~Dr.M~~ Error #1: UNADDRESSABLE ACCESS beyond top of stack: reading 0x000000a0191ff7e0-0x000000a0191ff7e8 8 byte(s)
~~Dr.M~~ # 0 .text                                   [/home/roland.mainz/work/drmemory_test1/x1.c:25]
~~Dr.M~~ # 1 _pei386_runtime_relocator               [/home/roland.mainz/work/drmemory_test1/x1.c:25]
~~Dr.M~~ # 2 __tmainCRTStartup
~~Dr.M~~ # 3 .l_start
~~Dr.M~~ # 4 KERNEL32.dll!BaseThreadInitThunk
~~Dr.M~~ Note: @0:00:00.222 in thread 16552
~~Dr.M~~ Note: 0x000000a0191ff7e0 refers to 824 byte(s) beyond the top of the stack 0x000000a0191ffb18
~~Dr.M~~ Note: instruction: or     $0x0000000000000000 (%rcx) -> (%rcx)
#start
i=~~Dr.M~~
~~Dr.M~~ Error #2: UNADDRESSABLE ACCESS beyond top of stack: reading 0x000000a0191ff950-0x000000a0191ff958 8 byte(s)
~~Dr.M~~ # 0 .text                              [/home/roland.mainz/work/drmemory_test1/x1.c:25]
~~Dr.M~~ # 1 __pformat_int.isra.0               [/home/roland.mainz/work/drmemory_test1/x1.c:25]
~~Dr.M~~ # 2 __mingw_pformat                    [/home/roland.mainz/work/drmemory_test1/x1.c:25]
~~Dr.M~~ # 3 __mingw_vfprintf                   [/home/roland.mainz/work/drmemory_test1/x1.c:25]
~~Dr.M~~ # 4 printf                             [/usr/x86_64-w64-mingw32/sys-root/mingw/include/stdio.h:375]
~~Dr.M~~ # 5 main                               [/home/roland.mainz/work/drmemory_test1/x1.c:20]
~~Dr.M~~ Note: @0:00:00.263 in thread 16552
~~Dr.M~~ Note: 0x000000a0191ff950 refers to 8 byte(s) beyond the top of the stack 0x000000a0191ff958
~~Dr.M~~ Note: instruction: or     $0x0000000000000000 (%rcx) -> (%rcx)
5
i=4
i=3
i=2
i=1
i=0
~~Dr.M~~
~~Dr.M~~ Error #3: UNADDRESSABLE ACCESS beyond heap bounds: reading 0x00000294074b1298-0x00000294074b129c 4 byte(s)
~~Dr.M~~ # 0 main               [/home/roland.mainz/work/drmemory_test1/x1.c:17]
~~Dr.M~~ Note: @0:00:00.284 in thread 16552
~~Dr.M~~ Note: refers to 0 byte(s) beyond last valid byte in prior malloc
~~Dr.M~~ Note: prev lower malloc:  0x00000294074b1280-0x00000294074b1298
~~Dr.M~~ Note: instruction: mov    (%rax) -> %eax
i=0
i=0
i=0
i=0
i=0
i=0
i=0
i=0
i=0
i=0
#end
~~Dr.M~~
~~Dr.M~~ Error #4: LEAK 24 direct bytes 0x00000294074b1280-0x00000294074b1298 + 0 indirect bytes
~~Dr.M~~ # 0 replace_malloc               [D:\a\drmemory\drmemory\common\alloc_replace.c:2580]
~~Dr.M~~ # 1 main                         [/home/roland.mainz/work/drmemory_test1/x1.c:11]
~~Dr.M~~
~~Dr.M~~ ERRORS FOUND:
~~Dr.M~~       3 unique,    44 total unaddressable access(es)
~~Dr.M~~       0 unique,     0 total uninitialized access(es)
~~Dr.M~~       0 unique,     0 total invalid heap argument(s)
~~Dr.M~~       0 unique,     0 total GDI usage error(s)
~~Dr.M~~       0 unique,     0 total handle leak(s)
~~Dr.M~~       0 unique,     0 total warning(s)
~~Dr.M~~       1 unique,     1 total,     24 byte(s) of leak(s)
~~Dr.M~~       0 unique,     0 total,      0 byte(s) of possible leak(s)
~~Dr.M~~ ERRORS IGNORED:
~~Dr.M~~       4 unique,     4 total,   4136 byte(s) of still-reachable allocation(s)
~~Dr.M~~          (re-run with "-show_reachable" for details)
~~Dr.M~~ Details: C:\Users\roland.mainz\AppData\Roaming\Dr. Memory\DrMemory-a.exe.15568.000\results.txt
*/