curl/lib/warnless.c
Viktor Szakats 3f8fc25720
cmake: add support for "unity" builds
Aka "jumbo" or "amalgamation" builds. It means to compile all sources
per target as a single C source. This is experimental.

You can enable it by passing `-DCMAKE_UNITY_BUILD=ON` to cmake.
It requires CMake 3.16 or newer.

It makes builds (much) faster, allows for better optimizations and tends
to promote less ambiguous code.

Also add a new AppVeyor CI job and convert an existing one to use
"unity" mode (one MSVC, one MinGW), and enable it for one macOS CI job.

Fix related issues:
- add missing include guard to `easy_lock.h`.
- rename static variables and functions (and a macro) with names reused
  across sources, or shadowed by local variables.
- add an `#undef` after use.
- add a missing `#undef` before use.
- move internal definitions from `ftp.h` to `ftp.c`.
- `curl_memory.h` fixes to make it work when included repeatedly.
- stop building/linking curlx bits twice for a static-mode curl tool.
  These caused doubly defined symbols in unity builds.
- silence missing extern declarations compiler warning for ` _CRT_glob`.
- fix extern declarations for `tool_freq` and `tool_isVistaOrGreater`.
- fix colliding static symbols in debug mode: `debugtime()` and
  `statename`.
- rename `ssl_backend_data` structure to unique names for each
  TLS-backend, along with the `ssl_connect_data` struct member
  referencing them. This required adding casts for each access.
- add workaround for missing `[P]UNICODE_STRING` types in certain Windows
  builds when compiling `lib/ldap.c`. To support "unity" builds, we had
  to enable `SCHANNEL_USE_BLACKLISTS` for Schannel (a Windows
  `schannel.h` option) _globally_. This caused an indirect inclusion of
  Windows `schannel.h` from `ldap.c` via `winldap.h` to have it enabled
  as well. This requires `[P]UNICODE_STRING` types, which is apperantly
  not defined automatically (as seen with both MSVS and mingw-w64).
  This patch includes `<subauth.h>` to fix it.
  Ref: https://github.com/curl/curl/runs/13987772013
  Ref: https://dev.azure.com/daniel0244/curl/_build/results?buildId=15827&view=logs&jobId=2c9f582d-e278-56b6-4354-f38a4d851906&j=2c9f582d-e278-56b6-4354-f38a4d851906&t=90509b00-34fa-5a81-35d7-5ed9569d331c
- tweak unity builds to compile `lib/memdebug.c` separately in memory
  trace builds to avoid PP confusion.
- force-disable unity for test programs.
- do not compile and link libcurl sources to libtests _twice_ when libcurl
  is built in static mode.

KNOWN ISSUES:
- running tests with unity builds may fail in cases.
- some build configurations/env may not compile in unity mode. E.g.:
  https://ci.appveyor.com/project/curlorg/curl/builds/47230972/job/51wfesgnfuauwl8q#L250

Ref: https://github.com/libssh2/libssh2/issues/1034
Ref: https://cmake.org/cmake/help/latest/prop_tgt/UNITY_BUILD.html
Ref: https://en.wikipedia.org/wiki/Unity_build

Closes #11095
2023-06-07 13:06:08 +00:00

438 lines
9.4 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "curl_setup.h"
#if defined(__INTEL_COMPILER) && defined(__unix__)
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#endif /* __INTEL_COMPILER && __unix__ */
#include "warnless.h"
#ifdef WIN32
#undef read
#undef write
#endif
#include <limits.h>
#define CURL_MASK_UCHAR ((unsigned char)~0)
#define CURL_MASK_SCHAR (CURL_MASK_UCHAR >> 1)
#define CURL_MASK_USHORT ((unsigned short)~0)
#define CURL_MASK_SSHORT (CURL_MASK_USHORT >> 1)
#define CURL_MASK_UINT ((unsigned int)~0)
#define CURL_MASK_SINT (CURL_MASK_UINT >> 1)
#define CURL_MASK_ULONG ((unsigned long)~0)
#define CURL_MASK_SLONG (CURL_MASK_ULONG >> 1)
#define CURL_MASK_UCOFFT ((unsigned CURL_TYPEOF_CURL_OFF_T)~0)
#define CURL_MASK_SCOFFT (CURL_MASK_UCOFFT >> 1)
#define CURL_MASK_USIZE_T ((size_t)~0)
#define CURL_MASK_SSIZE_T (CURL_MASK_USIZE_T >> 1)
/*
** unsigned long to unsigned short
*/
unsigned short curlx_ultous(unsigned long ulnum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(ulnum <= (unsigned long) CURL_MASK_USHORT);
return (unsigned short)(ulnum & (unsigned long) CURL_MASK_USHORT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** unsigned long to unsigned char
*/
unsigned char curlx_ultouc(unsigned long ulnum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(ulnum <= (unsigned long) CURL_MASK_UCHAR);
return (unsigned char)(ulnum & (unsigned long) CURL_MASK_UCHAR);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** unsigned size_t to signed curl_off_t
*/
curl_off_t curlx_uztoso(size_t uznum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#elif defined(_MSC_VER)
# pragma warning(push)
# pragma warning(disable:4310) /* cast truncates constant value */
#endif
DEBUGASSERT(uznum <= (size_t) CURL_MASK_SCOFFT);
return (curl_off_t)(uznum & (size_t) CURL_MASK_SCOFFT);
#if defined(__INTEL_COMPILER) || defined(_MSC_VER)
# pragma warning(pop)
#endif
}
/*
** unsigned size_t to signed int
*/
int curlx_uztosi(size_t uznum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(uznum <= (size_t) CURL_MASK_SINT);
return (int)(uznum & (size_t) CURL_MASK_SINT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** unsigned size_t to unsigned long
*/
unsigned long curlx_uztoul(size_t uznum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
#if ULONG_MAX < SIZE_T_MAX
DEBUGASSERT(uznum <= (size_t) CURL_MASK_ULONG);
#endif
return (unsigned long)(uznum & (size_t) CURL_MASK_ULONG);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** unsigned size_t to unsigned int
*/
unsigned int curlx_uztoui(size_t uznum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
#if UINT_MAX < SIZE_T_MAX
DEBUGASSERT(uznum <= (size_t) CURL_MASK_UINT);
#endif
return (unsigned int)(uznum & (size_t) CURL_MASK_UINT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** signed long to signed int
*/
int curlx_sltosi(long slnum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(slnum >= 0);
#if INT_MAX < LONG_MAX
DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_SINT);
#endif
return (int)(slnum & (long) CURL_MASK_SINT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** signed long to unsigned int
*/
unsigned int curlx_sltoui(long slnum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(slnum >= 0);
#if UINT_MAX < LONG_MAX
DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_UINT);
#endif
return (unsigned int)(slnum & (long) CURL_MASK_UINT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** signed long to unsigned short
*/
unsigned short curlx_sltous(long slnum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(slnum >= 0);
DEBUGASSERT((unsigned long) slnum <= (unsigned long) CURL_MASK_USHORT);
return (unsigned short)(slnum & (long) CURL_MASK_USHORT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** unsigned size_t to signed ssize_t
*/
ssize_t curlx_uztosz(size_t uznum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(uznum <= (size_t) CURL_MASK_SSIZE_T);
return (ssize_t)(uznum & (size_t) CURL_MASK_SSIZE_T);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** signed curl_off_t to unsigned size_t
*/
size_t curlx_sotouz(curl_off_t sonum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(sonum >= 0);
return (size_t)(sonum & (curl_off_t) CURL_MASK_USIZE_T);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** signed ssize_t to signed int
*/
int curlx_sztosi(ssize_t sznum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(sznum >= 0);
#if INT_MAX < SSIZE_T_MAX
DEBUGASSERT((size_t) sznum <= (size_t) CURL_MASK_SINT);
#endif
return (int)(sznum & (ssize_t) CURL_MASK_SINT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** unsigned int to unsigned short
*/
unsigned short curlx_uitous(unsigned int uinum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(uinum <= (unsigned int) CURL_MASK_USHORT);
return (unsigned short) (uinum & (unsigned int) CURL_MASK_USHORT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
/*
** signed int to unsigned size_t
*/
size_t curlx_sitouz(int sinum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(sinum >= 0);
return (size_t) sinum;
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
#ifdef USE_WINSOCK
/*
** curl_socket_t to signed int
*/
int curlx_sktosi(curl_socket_t s)
{
return (int)((ssize_t) s);
}
/*
** signed int to curl_socket_t
*/
curl_socket_t curlx_sitosk(int i)
{
return (curl_socket_t)((ssize_t) i);
}
#endif /* USE_WINSOCK */
#if defined(WIN32)
ssize_t curlx_read(int fd, void *buf, size_t count)
{
return (ssize_t)read(fd, buf, curlx_uztoui(count));
}
ssize_t curlx_write(int fd, const void *buf, size_t count)
{
return (ssize_t)write(fd, buf, curlx_uztoui(count));
}
/* Ensure that warnless.h continues to have an effect in "unity" builds. */
#undef HEADER_CURL_WARNLESS_H
#endif /* WIN32 */
#if defined(__INTEL_COMPILER) && defined(__unix__)
int curlx_FD_ISSET(int fd, fd_set *fdset)
{
#pragma warning(push)
#pragma warning(disable:1469) /* clobber ignored */
return FD_ISSET(fd, fdset);
#pragma warning(pop)
}
void curlx_FD_SET(int fd, fd_set *fdset)
{
#pragma warning(push)
#pragma warning(disable:1469) /* clobber ignored */
FD_SET(fd, fdset);
#pragma warning(pop)
}
void curlx_FD_ZERO(fd_set *fdset)
{
#pragma warning(push)
#pragma warning(disable:593) /* variable was set but never used */
FD_ZERO(fdset);
#pragma warning(pop)
}
unsigned short curlx_htons(unsigned short usnum)
{
#if (__INTEL_COMPILER == 910) && defined(__i386__)
return (unsigned short)(((usnum << 8) & 0xFF00) | ((usnum >> 8) & 0x00FF));
#else
#pragma warning(push)
#pragma warning(disable:810) /* conversion may lose significant bits */
return htons(usnum);
#pragma warning(pop)
#endif
}
unsigned short curlx_ntohs(unsigned short usnum)
{
#if (__INTEL_COMPILER == 910) && defined(__i386__)
return (unsigned short)(((usnum << 8) & 0xFF00) | ((usnum >> 8) & 0x00FF));
#else
#pragma warning(push)
#pragma warning(disable:810) /* conversion may lose significant bits */
return ntohs(usnum);
#pragma warning(pop)
#endif
}
#endif /* __INTEL_COMPILER && __unix__ */