[CMake] Remove HAVE_SYS_RESOURCE_H/HAVE_SETRLIMIT/HAVE_GETRLIMIT

Only used by Unix/Program.inc and seem always available.

Pull Request: llvm/llvm-project#123288

Author: MaskRay

llvm/cmake/config-ix.cmake

@@ -23,7 +23,6 @@ if (ANDROID OR CYGWIN OR CMAKE_SYSTEM_NAME MATCHES "AIX|DragonFly|FreeBSD|Haiku|
   set(HAVE_MALLOC_MALLOC_H 0)
   set(HAVE_PTHREAD_H 1)
   set(HAVE_SYS_MMAN_H 1)
-  set(HAVE_SYS_RESOURCE_H 1)
   set(HAVE_SYSEXITS_H 1)
   set(HAVE_UNISTD_H 1)
 elseif (APPLE)
@@ -32,7 +31,6 @@ elseif (APPLE)
   set(HAVE_MALLOC_MALLOC_H 1)
   set(HAVE_PTHREAD_H 1)
   set(HAVE_SYS_MMAN_H 1)
-  set(HAVE_SYS_RESOURCE_H 1)
   set(HAVE_SYSEXITS_H 1)
   set(HAVE_UNISTD_H 1)
 elseif (PURE_WINDOWS)
@@ -41,7 +39,6 @@ elseif (PURE_WINDOWS)
   set(HAVE_MALLOC_MALLOC_H 0)
   set(HAVE_PTHREAD_H 0)
   set(HAVE_SYS_MMAN_H 0)
-  set(HAVE_SYS_RESOURCE_H 0)
   set(HAVE_SYSEXITS_H 0)
   set(HAVE_UNISTD_H 0)
 elseif (ZOS)
@@ -52,7 +49,6 @@ elseif (ZOS)
   set(HAVE_MALLOC_MALLOC_H 0)
   set(HAVE_PTHREAD_H 1)
   set(HAVE_SYS_MMAN_H 1)
-  set(HAVE_SYS_RESOURCE_H 1)
   set(HAVE_SYSEXITS_H 0)
   set(HAVE_UNISTD_H 1)
 else()
@@ -62,7 +58,6 @@ else()
   check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H)
   check_include_file(pthread.h HAVE_PTHREAD_H)
   check_include_file(sys/mman.h HAVE_SYS_MMAN_H)
-  check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
   check_include_file(sysexits.h HAVE_SYSEXITS_H)
   check_include_file(unistd.h HAVE_UNISTD_H)
 endif()
@@ -326,7 +321,6 @@ check_symbol_exists(_Unwind_Backtrace "unwind.h" HAVE__UNWIND_BACKTRACE)
 check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE)
 check_symbol_exists(sysconf unistd.h HAVE_SYSCONF)
 check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE)
-check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT)
 check_symbol_exists(isatty unistd.h HAVE_ISATTY)
 check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS)
 check_symbol_exists(futimes sys/time.h HAVE_FUTIMES)
@@ -342,7 +336,6 @@ check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
 check_symbol_exists(mallinfo2 malloc.h HAVE_MALLINFO2)
 check_symbol_exists(malloc_zone_statistics malloc/malloc.h
                     HAVE_MALLOC_ZONE_STATISTICS)
-check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT)
 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN)
 check_symbol_exists(pread unistd.h HAVE_PREAD)
 check_symbol_exists(sbrk unistd.h HAVE_SBRK)

llvm/include/llvm/Config/config.h.cmake

@@ -90,9 +90,6 @@
 /* Define to 1 if you have the `getpagesize' function. */
 #cmakedefine HAVE_GETPAGESIZE ${HAVE_GETPAGESIZE}
 
-/* Define to 1 if you have the `getrlimit' function. */
-#cmakedefine HAVE_GETRLIMIT ${HAVE_GETRLIMIT}
-
 /* Define to 1 if you have the `getrusage' function. */
 #cmakedefine HAVE_GETRUSAGE ${HAVE_GETRUSAGE}
 
@@ -165,9 +162,6 @@
 /* Define to 1 if you have the `setenv' function. */
 #cmakedefine HAVE_SETENV ${HAVE_SETENV}
 
-/* Define to 1 if you have the `setrlimit' function. */
-#cmakedefine HAVE_SETRLIMIT ${HAVE_SETRLIMIT}
-
 /* Define to 1 if you have the `sigaltstack' function. */
 #cmakedefine HAVE_SIGALTSTACK ${HAVE_SIGALTSTACK}
 
@@ -180,9 +174,6 @@
 /* Define to 1 if you have the <sys/mman.h> header file. */
 #cmakedefine HAVE_SYS_MMAN_H ${HAVE_SYS_MMAN_H}
 
-/* Define to 1 if you have the <sys/resource.h> header file. */
-#cmakedefine HAVE_SYS_RESOURCE_H ${HAVE_SYS_RESOURCE_H}
-
 /* Define to 1 if stat struct has st_mtimespec member .*/
 #cmakedefine HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC ${HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC}
 

llvm/lib/Support/Unix/Process.inc

@@ -19,9 +19,7 @@
 #include <optional>
 #include <fcntl.h>
 #include <sys/time.h>
-#ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
-#endif
 #include <sys/stat.h>
 #include <signal.h>
 #if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2)
@@ -128,7 +126,6 @@ void Process::GetTimeUsage(TimePoint<> &elapsed,
 // their operation. To prevent the disk from filling up, this function
 // does what's necessary to prevent their generation.
 void Process::PreventCoreFiles() {
-#if HAVE_SETRLIMIT
   struct rlimit rlim;
   getrlimit(RLIMIT_CORE, &rlim);
 #ifdef __linux__
@@ -151,7 +148,6 @@ void Process::PreventCoreFiles() {
   rlim.rlim_cur = 0;
 #endif
   setrlimit(RLIMIT_CORE, &rlim);
-#endif
 
 #if defined(HAVE_MACH_MACH_H) && !defined(__GNU__)
   // Disable crash reporting on Mac OS X 10.0-10.4

llvm/lib/Support/Unix/Program.inc

@@ -29,9 +29,7 @@
 #include "llvm/Support/SystemZ/zOSSupport.h"
 #include "llvm/Support/raw_ostream.h"
 #include <sys/stat.h>
-#if HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
-#endif
 #include <signal.h>
 #include <fcntl.h>
 #if HAVE_UNISTD_H
@@ -140,7 +138,6 @@ static bool RedirectIO_PS(const std::string *Path, int FD, std::string *ErrMsg,
 static void TimeOutHandler(int Sig) {}
 
 static void SetMemoryLimits(unsigned size) {
-#if HAVE_SYS_RESOURCE_H && HAVE_GETRLIMIT && HAVE_SETRLIMIT
   struct rlimit r;
   __typeof__(r.rlim_cur) limit = (__typeof__(r.rlim_cur))(size)*1048576;
 
@@ -154,7 +151,6 @@ static void SetMemoryLimits(unsigned size) {
   r.rlim_cur = limit;
   setrlimit(RLIMIT_RSS, &r);
 #endif
-#endif
 }
 
 static std::vector<const char *>

llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn

@@ -206,7 +206,6 @@ write_cmake_config("config") {
       "HAVE_DLOPEN=",
       "HAVE_FUTIMES=",
       "HAVE_GETPAGESIZE=",
-      "HAVE_GETRLIMIT=",
       "HAVE_GETRUSAGE=",
       "HAVE_ISATTY=",
       "HAVE_LIBPTHREAD=",
@@ -217,12 +216,10 @@ write_cmake_config("config") {
       "HAVE_PTHREAD_RWLOCK_INIT=",
       "HAVE_SBRK=",
       "HAVE_SETENV=",
-      "HAVE_SETRLIMIT=",
       "HAVE_SIGALTSTACK=",
       "HAVE_STRERROR_R=",
       "HAVE_SYSCONF=",
       "HAVE_SYS_MMAN_H=",
-      "HAVE_SYS_RESOURCE_H=",
       "HAVE_UNISTD_H=",
       "HAVE__CHSIZE_S=1",
       "HAVE__UNWIND_BACKTRACE=",
@@ -238,7 +235,6 @@ write_cmake_config("config") {
       "HAVE_DLOPEN=1",
       "HAVE_FUTIMES=1",
       "HAVE_GETPAGESIZE=1",
-      "HAVE_GETRLIMIT=1",
       "HAVE_GETRUSAGE=1",
       "HAVE_ISATTY=1",
       "HAVE_LIBPTHREAD=1",
@@ -249,12 +245,10 @@ write_cmake_config("config") {
       "HAVE_PTHREAD_RWLOCK_INIT=1",
       "HAVE_SBRK=1",
       "HAVE_SETENV=1",
-      "HAVE_SETRLIMIT=1",
       "HAVE_SIGALTSTACK=1",
       "HAVE_STRERROR_R=1",
       "HAVE_SYSCONF=1",
       "HAVE_SYS_MMAN_H=1",
-      "HAVE_SYS_RESOURCE_H=1",
       "HAVE_UNISTD_H=1",
       "HAVE__CHSIZE_S=",
       "HAVE__UNWIND_BACKTRACE=1",

utils/bazel/llvm-project-overlay/llvm/include/llvm/Config/config.h

@@ -102,9 +102,6 @@
 /* Define to 1 if you have the `getpagesize' function. */
 #define HAVE_GETPAGESIZE 1
 
-/* Define to 1 if you have the `getrlimit' function. */
-#define HAVE_GETRLIMIT 1
-
 /* Define to 1 if you have the `getrusage' function. */
 #define HAVE_GETRUSAGE 1
 
@@ -168,9 +165,6 @@
 /* Define to 1 if you have the `setenv' function. */
 /* HAVE_SETENV defined in Bazel */
 
-/* Define to 1 if you have the `setrlimit' function. */
-#define HAVE_SETRLIMIT 1
-
 /* Define to 1 if you have the `sigaltstack' function. */
 #define HAVE_SIGALTSTACK 1
 
@@ -183,9 +177,6 @@
 /* Define to 1 if you have the <sys/mman.h> header file. */
 #define HAVE_SYS_MMAN_H 1
 
-/* Define to 1 if you have the <sys/resource.h> header file. */
-#define HAVE_SYS_RESOURCE_H 1
-
 /* Define to 1 if stat struct has st_mtimespec member .*/
 /* #undef HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC */
 

utils/bazel/llvm_configs/config.h.cmake

@@ -90,9 +90,6 @@
 /* Define to 1 if you have the `getpagesize' function. */
 #cmakedefine HAVE_GETPAGESIZE ${HAVE_GETPAGESIZE}
 
-/* Define to 1 if you have the `getrlimit' function. */
-#cmakedefine HAVE_GETRLIMIT ${HAVE_GETRLIMIT}
-
 /* Define to 1 if you have the `getrusage' function. */
 #cmakedefine HAVE_GETRUSAGE ${HAVE_GETRUSAGE}
 
@@ -165,9 +162,6 @@
 /* Define to 1 if you have the `setenv' function. */
 #cmakedefine HAVE_SETENV ${HAVE_SETENV}
 
-/* Define to 1 if you have the `setrlimit' function. */
-#cmakedefine HAVE_SETRLIMIT ${HAVE_SETRLIMIT}
-
 /* Define to 1 if you have the `sigaltstack' function. */
 #cmakedefine HAVE_SIGALTSTACK ${HAVE_SIGALTSTACK}
 
@@ -180,9 +174,6 @@
 /* Define to 1 if you have the <sys/mman.h> header file. */
 #cmakedefine HAVE_SYS_MMAN_H ${HAVE_SYS_MMAN_H}
 
-/* Define to 1 if you have the <sys/resource.h> header file. */
-#cmakedefine HAVE_SYS_RESOURCE_H ${HAVE_SYS_RESOURCE_H}
-
 /* Define to 1 if stat struct has st_mtimespec member .*/
 #cmakedefine HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC ${HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC}