autoreconf: export WARNINGS=
autoreconf: Entering directory '.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force -I m4
autoreconf: configure.ac: tracing
autoreconf: configure.ac: not using Libtool
autoreconf: configure.ac: not using Intltool
autoreconf: configure.ac: not using Gtkdoc
autoreconf: running: /usr/bin/autoconf --force
autoreconf: running: /usr/bin/autoheader --force
autoreconf: running: automake --add-missing --copy --force-missing
autoreconf: Leaving directory '.'
badpoll.c: In function ‘main’:
badpoll.c:18:8: warning: array subscript ‘struct pollfd[1]’ is partly outside array bounds of ‘unsigned char[15]’ [-Warray-bounds=]
   18 |    ufds[1].events = 0;
      |    ~~~~^~~
badpoll.c:12:26: note: at offset 8 into object of size 15 allocated by ‘malloc’
   12 |    struct pollfd* ufds = malloc(2 * sizeof(struct pollfd) - 1);
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/features.h:524,
                 from /usr/include/assert.h:35,
                 from badpoll.c:1:
In function ‘poll’,
    inlined from ‘main’ at badpoll.c:22:4:
/usr/include/bits/poll2.h:44:10: warning: call to ‘__poll_chk_warn’ declared with attribute warning: poll called with fds buffer too small file nfds entries [-Wattribute-warning]
   44 |   return __glibc_fortify (poll, __nfds, sizeof (*__fds),
      |          ^~~~~~~~~~~~~~~
In file included from /usr/include/string.h:548,
                 from bug401284.c:3:
In function ‘strncat’,
    inlined from ‘main’ at bug401284.c:10:5:
/usr/include/bits/string_fortified.h:149:10: warning: ‘__builtin_strncat’ accessing between 1 and 9223372036854775805 bytes at offsets [0, 9223372036854775805] and 0 may overlap 1 byte at offset [0, 9223372036854775807] [-Wrestrict]
  149 |   return __builtin___strncat_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  150 |                                   __glibc_objsize (__dest));
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~
clo_redzone.c: In function ‘main’:
clo_redzone.c:17:6: warning: array subscript 197 is outside array bounds of ‘char[128]’ [-Warray-bounds=]
   17 |    b1[127 + 70] = 'a';
      |    ~~^~~~~~~~~~
clo_redzone.c:7:15: note: at offset 197 into object of size 128 allocated by ‘malloc’
    7 |    char *b1 = malloc (128);
      |               ^~~~~~~~~~~~
In function ‘bad_things_below_sp’,
    inlined from ‘child_fn_0’ at descr_belowsp.c:108:4:
descr_belowsp.c:56:47: warning: array subscript -375 is outside array bounds of ‘int[1]’ [-Warray-bounds=]
   56 |    describe ("1500 bytes below a local var", p-1500);
      |                                              ~^~~~~
descr_belowsp.c: In function ‘child_fn_0’:
descr_belowsp.c:54:8: note: at offset -1500 into object ‘i’ of size 4
   54 |    int i;
      |        ^
In file included from descr_belowsp.c:17:
descr_belowsp.c:23:46: warning: array subscript 2097151 is outside array bounds of ‘int[1]’ [-Warray-bounds=]
   23 | #define VG_ROUNDUP(p, a)   VG_ROUNDDN((p)+(a)-1, (a))
      |                                              ^
../../include/valgrind.h:434:40: note: in definition of macro ‘VALGRIND_DO_CLIENT_REQUEST_EXPR’
  434 |     _zzq_args[2] = (unsigned long int)(_zzq_arg2);                \
      |                                        ^~~~~~~~~
descr_belowsp.c:137:17: note: in expansion of macro ‘VALGRIND_STACK_REGISTER’
  137 |       stackid = VALGRIND_STACK_REGISTER((void*) 0x0,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~
descr_belowsp.c:23:28: note: in expansion of macro ‘VG_ROUNDDN’
   23 | #define VG_ROUNDUP(p, a)   VG_ROUNDDN((p)+(a)-1, (a))
      |                            ^~~~~~~~~~
descr_belowsp.c:138:49: note: in expansion of macro ‘VG_ROUNDUP’
  138 |                                         (void*) VG_ROUNDUP(&stackid, 2<<20));
      |                                                 ^~~~~~~~~~
descr_belowsp.c:122:11: note: at offset 8388604 into object ‘stackid’ of size 4
  122 |       int stackid;
      |           ^~~~~~~
In function ‘bad_things_below_sp’,
    inlined from ‘main’ at descr_belowsp.c:169:4:
descr_belowsp.c:56:47: warning: array subscript -375 is outside array bounds of ‘int[1]’ [-Warray-bounds=]
   56 |    describe ("1500 bytes below a local var", p-1500);
      |                                              ~^~~~~
descr_belowsp.c: In function ‘main’:
descr_belowsp.c:54:8: note: at offset -1500 into object ‘i’ of size 4
   54 |    int i;
      |        ^
fwrite.c: In function ‘main’:
fwrite.c:12:13: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   12 |       (void)write(fd, arr, 10);
      |             ^~~~~~~~~~~~~~~~~~
manuel2.c: In function ‘main’:
manuel2.c:8:13: warning: ‘*m’ is used uninitialized [-Wuninitialized]
    8 |   int *x = m[0] + &y;      // we know m[0] will be zero
      |            ~^~~
memalign_args.c: In function ‘main’:
memalign_args.c:23:10: warning: ignoring return value of ‘posix_memalign’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   23 |    (void)posix_memalign((void **)&mem,align,size);
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
memalign_args.c:24:4: warning: ‘mem’ may be used uninitialized [-Wmaybe-uninitialized]
   24 |    free(mem);
      |    ^~~~~~~~~
memalign_args.c:13:10: note: ‘mem’ was declared here
   13 |    char *mem;
      |          ^~~
overlap.c: In function ‘main’:
overlap.c:44:4: warning: ‘__builtin_strncpy’ output may be truncated copying 20 bytes from a string of length 99 [-Wstringop-truncation]
   44 |    strncpy(x+20, x, 20);    // ok
      |    ^
In file included from /usr/include/string.h:548,
                 from overlap.c:1:
In function ‘strncpy’,
    inlined from ‘main’ at overlap.c:45:4:
/usr/include/bits/string_fortified.h:100:10: warning: ‘__builtin_strncpy’ accessing 21 bytes at offsets 20 and 0 may overlap 1 byte at offset 20 [-Wrestrict]
  100 |   return __builtin___strncpy_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  101 |                                   __glibc_objsize (__dest));
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘strncpy’,
    inlined from ‘main’ at overlap.c:47:4:
/usr/include/bits/string_fortified.h:100:10: warning: ‘__builtin_strncpy’ accessing 21 bytes at offsets 0 and 20 overlaps 1 byte at offset 20 [-Wrestrict]
  100 |   return __builtin___strncpy_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  101 |                                   __glibc_objsize (__dest));
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~
overlap.c: In function ‘main’:
overlap.c:74:4: warning: ‘__builtin_strncpy’ output may be truncated copying 25 bytes from a string of length 26 [-Wstringop-truncation]
   74 |    strncpy(b, a, 25);
      |    ^
overlap.c:78:4: warning: ‘__builtin_strncpy’ output may be truncated copying 26 bytes from a string of length 26 [-Wstringop-truncation]
   78 |    strncpy(b, a, 26);
      |    ^
overlap.c:97:4: warning: ‘__builtin___strncat_chk’ output may be truncated copying 25 bytes from a string of length 26 [-Wstringop-truncation]
   97 |    strncat(b, a, 25);
      |    ^
overlap.c:101:4: warning: ‘__builtin___strncat_chk’ output may be truncated copying 26 bytes from a string of length 26 [-Wstringop-truncation]
  101 |    strncat(b, a, 26);
      |    ^
In function ‘strncat’,
    inlined from ‘main’ at overlap.c:112:7:
/usr/include/bits/string_fortified.h:149:10: warning: ‘__builtin___strncat_chk’ forming offset [27, 40] is out of the bounds [0, 27] of object ‘a’ with type ‘char[27]’ [-Warray-bounds=]
  149 |   return __builtin___strncat_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  150 |                                   __glibc_objsize (__dest));
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~
overlap.c: In function ‘main’:
overlap.c:24:9: note: ‘a’ declared here
   24 |    char a[] = "abcdefghijklmnopqrstuvwxyz";
      |         ^
In function ‘strncat’,
    inlined from ‘main’ at overlap.c:113:4:
/usr/include/bits/string_fortified.h:149:10: warning: ‘__builtin___strncat_chk’ accessing 1 byte at offsets 0 and 20 overlaps 1 byte at offset 20 [-Wrestrict]
  149 |   return __builtin___strncat_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  150 |                                   __glibc_objsize (__dest));
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘memcpy’,
    inlined from ‘main’ at overlap.c:40:4:
/usr/include/bits/string_fortified.h:29:10: warning: ‘__builtin_memcpy’ accessing 21 bytes at offsets 20 and 0 overlaps 1 byte at offset 20 [-Wrestrict]
   29 |   return __builtin___memcpy_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   30 |                                  __glibc_objsize0 (__dest));
      |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘memcpy’,
    inlined from ‘main’ at overlap.c:42:4:
/usr/include/bits/string_fortified.h:29:10: warning: ‘__builtin_memcpy’ accessing 21 bytes at offsets 0 and 20 overlaps 1 byte at offset 20 [-Wrestrict]
   29 |   return __builtin___memcpy_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   30 |                                  __glibc_objsize0 (__dest));
      |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~
partial_load.c: In function ‘main’:
partial_load.c:16:7: warning: array subscript ‘long int[0]’ is partly outside array bounds of ‘unsigned char[7]’ [-Warray-bounds=]
   16 |   w = *(long*)p;
      |       ^~~~~~~~~
partial_load.c:14:7: note: object of size 7 allocated by ‘calloc’
   14 |   p = calloc( sizeof(long)-1, 1 );
      |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
partial_load.c:23:8: warning: array subscript ‘long int[0]’ is partly outside array bounds of ‘unsigned char[8]’ [-Warray-bounds=]
   23 |   w += *(long*)p;
      |        ^~~~~~~~~
partial_load.c:20:7: note: at offset 1 into object of size 8 allocated by ‘calloc’
   20 |   p = calloc( sizeof(long), 1 );
      |       ^~~~~~~~~~~~~~~~~~~~~~~~~
partial_load.c:30:16: warning: array subscript ‘short int[0]’ is partly outside array bounds of ‘unsigned char[1]’ [-Warray-bounds=]
   30 |   w += (long)( *(short*)p );
      |              ~~^~~~~~~~~~~~
partial_load.c:28:7: note: object of size 1 allocated by ‘calloc’
   28 |   p = calloc( sizeof(short)-1, 1 );
      |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
pipe.c: In function ‘main’:
pipe.c:13:4: warning: ignoring return value of ‘pipe’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |    pipe(filedes);
      |    ^~~~~~~~~~~~~
realloc3.c: In function ‘main’:
realloc3.c:23:10: warning: array subscript 5 is outside array bounds of ‘int[1]’ [-Warray-bounds=]
   23 |    a = (x[5] == 0xdeadbeef ? 1 : 0);
      |         ~^~~
realloc3.c:19:8: note: at offset 20 into object of size 5 allocated by ‘realloc’
   19 |    x = realloc(x, 5);   // same size
      |        ^~~~~~~~~~~~~
realloc3.c:24:10: warning: array subscript 5 is outside array bounds of ‘int[1]’ [-Warray-bounds=]
   24 |    b = (y[5] == 0xdeadbeef ? 1 : 0);
      |         ~^~~
realloc3.c:20:8: note: at offset 20 into object of size 5 allocated by ‘realloc’
   20 |    y = realloc(y, 5);   // make smaller
      |        ^~~~~~~~~~~~~
realloc3.c:25:10: warning: array subscript 5 is outside array bounds of ‘int[1]’ [-Warray-bounds=]
   25 |    c = (z[5] == 0xdeadbeef ? 1 : 0);
      |         ~^~~
realloc3.c:21:8: note: at offset 20 into object of size 5 allocated by ‘realloc’
   21 |    z = realloc(z, 5);   // make bigger
      |        ^~~~~~~~~~~~~
In file included from /usr/include/string.h:548,
                 from str_tester.c:33:
In function ‘strncat’,
    inlined from ‘test_strncat’ at str_tester.c:332:10,
    inlined from ‘main’ at str_tester.c:1433:3:
/usr/include/bits/string_fortified.h:149:10: warning: ‘__builtin___strncat_chk’ forming offset [50, 98] is out of the bounds [0, 50] of object ‘one’ with type ‘char[50]’ [-Warray-bounds=]
  149 |   return __builtin___strncat_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  150 |                                   __glibc_objsize (__dest));
      |                                   ~~~~~~~~~~~~~~~~~~~~~~~~~
str_tester.c: In function ‘main’:
str_tester.c:66:6: note: ‘one’ declared here
   66 | char one[50];
      |      ^~~
xml1.c: In function ‘frame3’:
xml1.c:28:3: warning: ‘free’ called on unallocated object ‘n’ [-Wfree-nonheap-object]
   28 |   free(return_arg(&n));
      |   ^~~~~~~~~~~~~~~~~~~~
xml1.c:11:7: note: declared here
   11 |   int n = a[10];
      |       ^
wrap8.c: In function ‘send’:
wrap8.c:107:5: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  107 |     write(1, s, 1);
      |     ^~~~~~~~~~~~~~
stpncpy.c: In function ‘main’:
stpncpy.c:20:7: warning: ‘__builtin_stpncpy’ specified bound depends on the length of the source argument [-Wstringop-truncation]
   20 |   c = stpncpy (b, a, l + 3);
      |       ^
stpncpy.c:13:14: note: length computed here
   13 |   size_t l = strlen (a);
      |              ^~~~~~~~~~
xmas_tree.cpp: In function ‘int main()’:
xmas_tree.cpp:73:10: warning: ignoring return value of ‘ssize_t write(int, const void*, size_t)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   73 |     write(fd, buf, fd);
      |     ~~~~~^~~~~~~~~~~~~
xmas_tree.cpp:73:10: warning: ‘ssize_t write(int, const void*, size_t)’ reading 42 bytes from a region of size 0 [-Wstringop-overread]
   73 |     write(fd, buf, fd);
      |     ~~~~~^~~~~~~~~~~~~
cc1plus: note: source object is likely at address zero
In file included from xmas_tree.cpp:4:
/usr/include/unistd.h:378:16: note: in a call to function ‘ssize_t write(int, const void*, size_t)’ declared with attribute ‘access (read_only, 2, 3)’
  378 | extern ssize_t write (int __fd, const void *__buf, size_t __n) __wur
      |                ^~~~~
xmas_tree.cpp:50:15: warning: array subscript 32 is outside array bounds of ‘char [32]’ [-Warray-bounds=]
   50 |     if (mem[32])
      |         ~~~~~~^
xmas_tree.cpp:47:50: note: at offset 32 into object of size 32 allocated by ‘operator new []’
   47 |     char *mem = static_cast(operator new[](size, tag));
      |                                    ~~~~~~~~~~~~~~^~~~~~~~~~~
In file included from /usr/include/string.h:548,
                 from /usr/include/c++/15.2.0/cstring:48,
                 from xmas_tree.cpp:3:
In function ‘void* memcpy(void*, const void*, size_t)’,
    inlined from ‘int main()’ at xmas_tree.cpp:62:11:
/usr/include/bits/string_fortified.h:29:33: warning: ‘void* __builtin_memcpy(void*, const void*, long unsigned int)’ accessing 10 bytes at offsets 10 and 5 overlaps 5 bytes at offset 10 [-Wrestrict]
   29 |   return __builtin___memcpy_chk (__dest, __src, __len,
      |          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
   30 |                                  __glibc_objsize0 (__dest));
      |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/features.h:524,
                 from /usr/include/bits/libc-header-start.h:33,
                 from /usr/include/wchar.h:27,
                 from wcpncpy1.c:1:
In function ‘wcpncpy’,
    inlined from ‘main’ at wcpncpy1.c:14:4:
/usr/include/bits/wchar2.h:112:10: warning: ‘dest2’ may be used uninitialized [-Wmaybe-uninitialized]
  112 |   return __glibc_fortify_n (wcpncpy, __n, sizeof (wchar_t),
      |          ^~~~~~~~~~~~~~~~~
/usr/include/bits/wchar2-decl.h: In function ‘main’:
/usr/include/bits/wchar2-decl.h:114:17: note: by argument 2 of type ‘const wchar_t * restrict’ {aka ‘const int * restrict’} to ‘__wcpncpy_alias’ declared here
  114 | extern wchar_t *__REDIRECT_NTH (__wcpncpy_alias,
      |                 ^~~~~~~~~~~~~~
In function ‘wcpncpy’,
    inlined from ‘main’ at wcpncpy1.c:27:10:
/usr/include/bits/wchar2.h:112:10: warning: call to ‘__wcpncpy_chk_warn’ declared with attribute warning: wcpncpy called with length bigger than size of destination buffer [-Wattribute-warning]
  112 |   return __glibc_fortify_n (wcpncpy, __n, sizeof (wchar_t),
      |          ^~~~~~~~~~~~~~~~~
more_x86_fp.c: In function ‘test_fcvt’:
more_x86_fp.c:98:28: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
   98 |     printf("a=%016llx\n", *(long long *)&a);
      |                            ^~~~~~~~~~~~~~~
more_x86_fp.c:99:34: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
   99 |     printf("la=%016llx %04x\n", *(long long *)&la,
      |                                  ^~~~~~~~~~~~~~~~
more_x86_fp.c:100:12: warning: ‘la’ is used uninitialized [-Wuninitialized]
  100 |            *(unsigned short *)((char *)(&la) + 8));
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
more_x86_fp.c:86:17: note: ‘la’ declared here
   86 |     long double la;
      |                 ^~
insn-pcmpistri.c: In function ‘test_strlen’:
insn-pcmpistri.c:44:4: warning: ignoring return value of ‘posix_memalign’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   44 |    posix_memalign(&space, 16, roundup);
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/string.h:548,
                 from insn-pcmpistri.c:9:
In function ‘memcpy’,
    inlined from ‘test_strlen’ at insn-pcmpistri.c:46:4:
/usr/include/bits/string_fortified.h:29:10: warning: ‘space’ may be used uninitialized [-Wmaybe-uninitialized]
   29 |   return __builtin___memcpy_chk (__dest, __src, __len,
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   30 |                                  __glibc_objsize0 (__dest));
      |                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~
insn-pcmpistri.c: In function ‘test_strlen’:
insn-pcmpistri.c:43:10: note: ‘space’ was declared here
   43 |    void *space;
      |          ^~~~~
more_x87_fp.c: In function ‘test_fcvt’:
more_x87_fp.c:108:28: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  108 |     printf("a=%016llx\n", *(long long *)&a);
      |                            ^~~~~~~~~~~~~~~
more_x87_fp.c:109:34: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  109 |     printf("la=%016llx %04x\n", *(long long *)&la,
      |                                  ^~~~~~~~~~~~~~~~
more_x87_fp.c:110:12: warning: ‘la’ is used uninitialized [-Wuninitialized]
  110 |            *(unsigned short *)((char *)(&la) + 8));
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
more_x87_fp.c:96:17: note: ‘la’ declared here
   96 |     long double la;
      |                 ^~
ioctl_procmap_query.c: In function ‘main’:
ioctl_procmap_query.c:14:9: warning: ignoring return value of ‘getcwd’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   14 |         getcwd(cwd, sizeof(cwd));
      |         ^~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c: In function ‘main’:
sys-preadv2_pwritev2.c:53:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   53 |         pwritev2(fd, NULL, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:54:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   54 |         pwritev2(fd, z, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:55:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   55 |         pwritev2(fd, t, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:56:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   56 |         pwritev2(fd, iov, -1, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:57:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   57 |         pwritev2(fd, iov, c, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:58:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   58 |         pwritev2(fd, iov, 2, -5, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:59:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   59 |         pwritev2(-1, iov, 2, -5, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:60:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   60 |         pwritev2(fd, iov, 2, -5, flag);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:62:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   62 |         preadv2(fd, NULL, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:63:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   63 |         preadv2(fd, z, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:64:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   64 |         preadv2(fd, t, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:65:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   65 |         preadv2(fd, iov, -1, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:66:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   66 |         preadv2(fd, iov, c, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:67:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   67 |         preadv2(fd, iov, 2, -5, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:68:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   68 |         preadv2(-1, iov, 2, -5, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:71:9: warning: ignoring return value of ‘pwritev2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   71 |         pwritev2(fd, iov, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv2_pwritev2.c:72:9: warning: ignoring return value of ‘preadv2’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   72 |         preadv2(fd, iov, 2, 0, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c: In function ‘main’:
sys-preadv_pwritev.c:52:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   52 |         pwritev(fd, NULL, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:53:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   53 |         pwritev(fd, z, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:54:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   54 |         pwritev(fd, t, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:55:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   55 |         pwritev(fd, iov, -1, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:56:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   56 |         pwritev(fd, iov, c, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:57:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   57 |         pwritev(fd, iov, 2, -5);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:58:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   58 |         pwritev(-1, iov, 2, -5);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:60:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   60 |         preadv(fd, NULL, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:61:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   61 |         preadv(fd, z, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:62:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   62 |         preadv(fd, t, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:63:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   63 |         preadv(fd, iov, -1, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:64:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   64 |         preadv(fd, iov, c, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:65:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   65 |         preadv(fd, iov, 2, -5);
      |         ^~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:66:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   66 |         preadv(-1, iov, 2, -5);
      |         ^~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:69:9: warning: ignoring return value of ‘pwritev’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   69 |         pwritev(fd, iov, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~~
sys-preadv_pwritev.c:70:9: warning: ignoring return value of ‘preadv’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   70 |         preadv(fd, iov, 2, 0);
      |         ^~~~~~~~~~~~~~~~~~~~~
madv_guard.c: In function ‘check_addr’:
madv_guard.c:25:5: warning: ignoring return value of ‘read’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   25 |     read(fd, &entry, sizeof(entry));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chdir.c: In function ‘main’:
chdir.c:7:4: warning: ignoring return value of ‘chdir’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    7 |    chdir("..");
      |    ^~~~~~~~~~~
linuxthreads_det.c: In function ‘thread_func’:
linuxthreads_det.c:18:5: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   18 |     write(STDOUT_FILENO, "NPTL or non-Linux POSIX threads implementation detected.\n", 57);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
linuxthreads_det.c:22:5: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   22 |     write(STDOUT_FILENO, "Detected LinuxThreads as POSIX threads implementation.\n", 55);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_detached.c: In function ‘main’:
pth_detached.c:82:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   82 |   write(STDOUT_FILENO, "\n", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_detached.c: In function ‘thread_func2’:
pth_detached.c:32:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   32 |   write(STDOUT_FILENO, ".", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_detached.c: In function ‘thread_func1’:
pth_detached.c:24:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   24 |   write(STDOUT_FILENO, ".", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_detached_sem.c: In function ‘main’:
pth_detached_sem.c:84:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   84 |   write(STDOUT_FILENO, "\n", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_detached_sem.c: In function ‘thread_func2’:
pth_detached_sem.c:36:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   36 |   write(STDOUT_FILENO, ".", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_detached_sem.c: In function ‘thread_func1’:
pth_detached_sem.c:28:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   28 |   write(STDOUT_FILENO, ".", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_mutex_signal.c: In function ‘nullHandler’:
pth_mutex_signal.c:44:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   44 |   write(STDERR_FILENO, msg, strlen(msg));
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sigalrm.c: In function ‘print_thread_id’:
sigalrm.c:37:5: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   37 |     write(STDOUT_FILENO, msg, strlen(msg));
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_barrier_thr_cr.c: In function ‘main’:
pth_barrier_thr_cr.c:54:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   54 |   write(STDOUT_FILENO, "\n", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pth_barrier_thr_cr.c: In function ‘thread’:
pth_barrier_thr_cr.c:20:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   20 |   write(STDOUT_FILENO, ".", 1);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
bug234814.c: In function ‘mysigbus’:
bug234814.c:13:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |    write(1, kSigbus, sizeof(kSigbus)-1);
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bug514094.c: In function ‘main’:
bug514094.c:26:4: warning: ignoring return value of ‘realpath’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   26 |    realpath(argv[0], resolved);
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
faultstatus.c: In function ‘main’:
faultstatus.c:164:9: warning: ignoring return value of ‘ftruncate’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  164 |         ftruncate(fd, FILESIZE);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
fdleak_cmsg.c: In function ‘client’:
fdleak_cmsg.c:153:19: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  153 |    if (fd1 != -1) write(fd1, "Yeah 1\n", 8);
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~
fdleak_cmsg.c:154:19: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  154 |    if (fd2 != -1) write(fd2, "Yeah 2\n", 8);
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~
map_unmap.c: In function ‘prmaps’:
map_unmap.c:81:9: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   81 |         system(buf);
      |         ^~~~~~~~~~~
nocwd.c: In function ‘main’:
nocwd.c:32:7: warning: ignoring return value of ‘chdir’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   32 |       chdir ("subdir");
      |       ^~~~~~~~~~~~~~~~
sigstackgrowth.c: In function ‘main’:
sigstackgrowth.c:48:22: warning: array subscript -4194304 is outside array bounds of ‘char[1]’ [-Warray-bounds=]
   48 |         deep = &here - SIZE;
      |                      ^
sigstackgrowth.c:47:14: note: at offset -4194304 into object ‘here’ of size 1
   47 |         char here;
      |              ^~~~
system.c: In function ‘main’:
system.c:8:4: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    8 |    system("../../tests/true");
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~
syscall-restart2.c: In function ‘main’:
syscall-restart2.c:56:17: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   56 |                 write(fds[1], "x", 1);
      |                 ^~~~~~~~~~~~~~~~~~~~~
track_new.c: In function ‘main’:
track_new.c:15:3: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   15 |   write(oldfd, "some new text\n", 14);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
use_after_close.c: In function ‘main’:
use_after_close.c:12:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   12 |    write(fd, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
use_after_close.c:16:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   16 |    write(fd, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
use_after_close.c:19:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   19 |    write(10, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
use_after_close.c:22:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   22 |    write(-7, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
track_bad.c: In function ‘main’:
track_bad.c:13:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |    write(fd, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
track_bad.c:17:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   17 |    write(fd, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
track_bad.c:20:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   20 |    write(10, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
track_bad.c:23:4: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   23 |    write(-7, string, 4);
      |    ^~~~~~~~~~~~~~~~~~~~
track_std.c: In function ‘main’:
track_std.c:27:5: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   27 |     write (1, buf, nbytes);
      |     ^~~~~~~~~~~~~~~~~~~~~~
faultstatus.c: In function ‘main’:
faultstatus.c:127:9: warning: ignoring return value of ‘ftruncate’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  127 |         ftruncate(fd, FILESIZE);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
In file included from sse4-x86.c:6:
../sse4-common.h: In function ‘main’:
../sse4-common.h:880:20: warning: inlining failed in call to ‘test_MPSADBW’: --param large-stack-frame-growth limit reached [-Winline]
  880 | static inline void test_MPSADBW ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:167:4: note: called from here
  167 |    test_MPSADBW();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:394:20: warning: inlining failed in call to ‘test_PBLENDW’: --param large-stack-frame-growth limit reached [-Winline]
  394 | static inline void test_PBLENDW ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:161:4: note: called from here
  161 |    test_PBLENDW();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:368:20: warning: inlining failed in call to ‘test_BLENDPS’: --param large-stack-frame-growth limit reached [-Winline]
  368 | static inline void test_BLENDPS ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:160:4: note: called from here
  160 |    test_BLENDPS();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:354:20: warning: inlining failed in call to ‘test_BLENDPD’: --param large-stack-frame-growth limit reached [-Winline]
  354 | static inline void test_BLENDPD ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:159:4: note: called from here
  159 |    test_BLENDPD();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:394:20: warning: inlining failed in call to ‘test_PBLENDW’: --param large-stack-frame-growth limit reached [-Winline]
  394 | static inline void test_PBLENDW ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:161:4: note: called from here
  161 |    test_PBLENDW();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:368:20: warning: inlining failed in call to ‘test_BLENDPS’: --param large-stack-frame-growth limit reached [-Winline]
  368 | static inline void test_BLENDPS ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:160:4: note: called from here
  160 |    test_BLENDPS();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:354:20: warning: inlining failed in call to ‘test_BLENDPD’: --param large-stack-frame-growth limit reached [-Winline]
  354 | static inline void test_BLENDPD ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:159:4: note: called from here
  159 |    test_BLENDPD();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:880:20: warning: inlining failed in call to ‘test_MPSADBW’: --param large-stack-frame-growth limit reached [-Winline]
  880 | static inline void test_MPSADBW ( void )
      |                    ^~~~~~~~~~~~
sse4-x86.c:167:4: note: called from here
  167 |    test_MPSADBW();
      |    ^~~~~~~~~~~~~~
faultstatus.c: In function ‘main’:
faultstatus.c:109:9: warning: ignoring return value of ‘ftruncate’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  109 |         ftruncate(fd, FILESIZE);
      |         ^~~~~~~~~~~~~~~~~~~~~~~
In file included from sse4-64.c:12:
../sse4-common.h: In function ‘main’:
../sse4-common.h:880:20: warning: inlining failed in call to ‘test_MPSADBW’: --param large-stack-frame-growth limit reached [-Winline]
  880 | static inline void test_MPSADBW ( void )
      |                    ^~~~~~~~~~~~
sse4-64.c:2938:4: note: called from here
 2938 |    test_MPSADBW();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:394:20: warning: inlining failed in call to ‘test_PBLENDW’: --param large-stack-frame-growth limit reached [-Winline]
  394 | static inline void test_PBLENDW ( void )
      |                    ^~~~~~~~~~~~
sse4-64.c:2882:4: note: called from here
 2882 |    test_PBLENDW();
      |    ^~~~~~~~~~~~~~
../sse4-common.h:368:20: warning: inlining failed in call to ‘test_BLENDPS’: --param large-stack-frame-growth limit reached [-Winline]
  368 | static inline void test_BLENDPS ( void )
      |                    ^~~~~~~~~~~~
sse4-64.c:2881:4: note: called from here
 2881 |    test_BLENDPS();        // done Apr.02.2010
      |    ^~~~~~~~~~~~~~
../sse4-common.h:354:20: warning: inlining failed in call to ‘test_BLENDPD’: --param large-stack-frame-growth limit reached [-Winline]
  354 | static inline void test_BLENDPD ( void )
      |                    ^~~~~~~~~~~~
sse4-64.c:2880:4: note: called from here
 2880 |    test_BLENDPD();        // done Apr.01.2010
      |    ^~~~~~~~~~~~~~
../sse4-common.h:880:20: warning: inlining failed in call to ‘test_MPSADBW’: --param large-stack-frame-growth limit reached [-Winline]
  880 | static inline void test_MPSADBW ( void )
      |                    ^~~~~~~~~~~~
sse4-64.c:2938:4: note: called from here
 2938 |    test_MPSADBW();
      |    ^~~~~~~~~~~~~~
clonev.c: In function ‘fork_routine’:
clonev.c:13:9: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |         write(1, "fork_routine\n", 13);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
clonev.c: In function ‘main’:
clonev.c:51:9: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   51 |         write(1, "parent before clone\n", 20);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
clonev.c:55:9: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   55 |         write(1, "parent after clone\n", 19);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mremap2.c: In function ‘main’:
mremap2.c:139:15: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  139 |        if (0) system(buf);
      |               ^~~~~~~~~~~
mremap2.c:116:37: warning: array subscript 125000000 is outside array bounds of ‘int[1]’ [-Warray-bounds=]
  116 |   dst_impossible = (char*)(&alocal) + 500 * 1000 * 1000;
      |                    ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
mremap2.c:108:7: note: at offset 500000000 into object ‘alocal’ of size 4
  108 |   int alocal, maymove, fixed, nsi, dstpossible;
      |       ^~~~~~
readlinkat_self.c: In function ‘main’:
readlinkat_self.c:20:4: warning: ignoring return value of ‘realpath’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   20 |    realpath(argv[0], resolved);
      |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
open_client.cpp: In function ‘int main(int, char**)’:
open_client.cpp:140:10: warning: ignoring return value of ‘int chdir(const char*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  140 |     chdir("..");
      |     ~~~~~^~~~~~
In function ‘load’,
    inlined from ‘load’ at tinycc.c:5750:13:
tinycc.c:5773:28: warning: ‘v1.sym’ may be used uninitialized [-Wmaybe-uninitialized]
 5773 |         gen_modrm(r, fr, sv->sym, fc);
      |                          ~~^~~~~
tinycc.c: In function ‘load’:
tinycc.c:5738:12: note: ‘v1’ declared here
 5738 |     SValue v1;
      |            ^~
In function ‘external_global_sym’,
    inlined from ‘external_global_sym’ at tinycc.c:10158:13,
    inlined from ‘gen_cvt_ftoi’ at tinycc.c:6447:11:
tinycc.c:10166:21: warning: ‘ushort_type.ref’ may be used uninitialized [-Wmaybe-uninitialized]
10166 |         s->type.ref = type->ref;
      |         ~~~~~~~~~~~~^~~~~~~~~~~
tinycc.c: In function ‘gen_cvt_ftoi’:
tinycc.c:6436:11: note: ‘ushort_type.ref’ was declared here
 6436 |     CType ushort_type;
      |           ^~~~~~~~~~~
In function ‘preprocess_init’,
    inlined from ‘tcc_assemble.isra’ at tinycc.c:17768:5:
tinycc.c:14822:19: warning: array subscript -1 is outside array bounds of ‘SValue[256]’ [-Warray-bounds=]
14822 |     vtop = vstack - 1;
      |            ~~~~~~~^~~
tinycc.c: In function ‘tcc_assemble.isra’:
tinycc.c:2372:15: note: at offset -64 into object ‘vstack’ of size 16384
 2372 | static SValue vstack[VSTACK_SIZE], *vtop;
      |               ^~~~~~
In function ‘preprocess_init’,
    inlined from ‘tcc_compile’ at tinycc.c:14837:5:
tinycc.c:14822:19: warning: array subscript -1 is outside array bounds of ‘SValue[256]’ [-Warray-bounds=]
14822 |     vtop = vstack - 1;
      |            ~~~~~~~^~~
tinycc.c: In function ‘tcc_compile’:
tinycc.c:2372:15: note: at offset -64 into object ‘vstack’ of size 16384
 2372 | static SValue vstack[VSTACK_SIZE], *vtop;
      |               ^~~~~~
passsigalrm.c: In function ‘main’:
passsigalrm.c:52:4: warning: ignoring return value of ‘system’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   52 |    system("../tests/true");
      |    ^~~~~~~~~~~~~~~~~~~~~~~