php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #73951 will break strict-aliasing rules [-Wstrict-aliasing]
Submitted: 2017-01-16 16:51 UTC Modified: 2020-04-16 12:33 UTC
From: spam2 at rhsoft dot net Assigned:
Status: Wont fix Package: Compile Warning
PHP Version: 7.1.1RC1 OS:
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: spam2 at rhsoft dot net
New email:
PHP Version: OS:

 

 [2017-01-16 16:51 UTC] spam2 at rhsoft dot net 
Description:
------------
with "-fstrict-aliasing  -Wstrict-aliasing" you get the warning sbelow and since for -O3 strict-aliasing is default i think that should be really fixed

/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/standard/crypt_sha512.c: In function 'sha512_finish_ctx':
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/standard/crypt_sha512.c:267:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  *(uint64_t *) &ctx->buffer[bytes + pad + 8] = SWAP(ctx->total[0] << 3);
  ^
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/standard/crypt_sha512.c:268:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  *(uint64_t *) &ctx->buffer[bytes + pad] = SWAP((ctx->total[1] << 3) |
  ^
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/standard/crypt_sha256.c: In function 'sha256_finish_ctx':
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/standard/crypt_sha256.c:240:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  *(uint32_t *) &ctx->buffer[bytes + pad + 4] = SWAP (ctx->total[0] << 3);
  ^
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/standard/crypt_sha256.c:241:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  *(uint32_t *) &ctx->buffer[bytes + pad] = SWAP ((ctx->total[1] << 3) |
  ^
/home/builduser/rpmbuild/BUILD/php-7.1.1/main/php_ini.c: In function 'php_init_config':
/home/builduser/rpmbuild/BUILD/php-7.1.1/main/php_ini.c:697:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
     strlcat(php_ini_scanned_files, *(char **)element->data, total_l);
     ^~~~~~~

/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/hash/hash_tiger.c: In function 'TigerFinalize':
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/hash/hash_tiger.c:151:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
   tiger_compress(context->passes, ((uint64_t *) context->buffer), context->state);
   ^~~~~~~~~~~~~~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/hash/hash_tiger.c:169:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  tiger_compress(context->passes, ((uint64_t *) context->buffer), context->state);
  ^~~~~~~~~~~~~~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/hash/hash_tiger.c: In function 'PHP_TIGERUpdate':
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/hash/hash_tiger.c:209:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
    tiger_compress(context->passes, ((const uint64_t *) context->buffer), context->state);
    ^~~~~~~~~~~~~~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/hash/hash_tiger.c:216:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
    tiger_compress(context->passes, ((const uint64_t *) context->buffer), context->state);
    ^~~~~~~~~~~~~~

/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c: In function '_php_iconv_strpos':
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1055:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
     if (_php_iconv_memequal(buf, ndl_buf_p, sizeof(buf))) {
     ^~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1055:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1073:7: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
       if (_php_iconv_memequal(&ZSTR_VAL(ndl_buf)[j], &ZSTR_VAL(ndl_buf)[i],
       ^~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1073:7: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1073:7: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1073:7: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1083:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
      if (_php_iconv_memequal(buf, &ZSTR_VAL(ndl_buf)[i], sizeof(buf))) {
      ^~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1083:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1083:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1083:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1096:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
    if (_php_iconv_memequal(buf, ndl_buf_p, sizeof(buf))) {
    ^~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1096:4: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1116:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
      if (_php_iconv_memequal(&ZSTR_VAL(ndl_buf)[j], &ZSTR_VAL(ndl_buf)[i],
      ^~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1116:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1116:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1116:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1126:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
     if (_php_iconv_memequal(buf, &ZSTR_VAL(ndl_buf)[i], sizeof(buf))) {
     ^~
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1126:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1126:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/iconv/iconv.c:1126:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/phar/tar.c: In function 'phar_tar_flush':
/home/builduser/rpmbuild/BUILD/php-7.1.1/ext/phar/tar.c:1249:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
   PHAR_SET_32(sigbuf, phar->sig_flags);
   ^~~~~~~~~~~

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2020-04-16 12:33 UTC] nikic@php.net
-Status: Open +Status: Wont fix
 [2020-04-16 12:33 UTC] nikic@php.net 
We build with -Wno-strict-aliasing nowadays and do not plan to adhere strictly adhere to aliasing rules. Newer GCC versions are better about not warning about acceptable standard violations.
 
PHP Copyright © 2001-2024 The PHP Group
All rights reserved. 		Last updated: Sat Dec 21 16:01:28 2024 UTC