652d70f3e1
Here's the warnings and how they were fixed: - InstrProfilingUtil.c(110): warning C4013: '_open_osfhandle' undefined; assuming extern returning int Include io.h to get the prototype. - warning C4005: 'FILE_MAP_EXECUTE': macro redefinition Stop trying to support pre-XP versions of Windows, don't attempt to define this macro. - InstrProfilingWriter.c(271): warning C4221: nonstandard extension used: 'Data': cannot be initialized using address of automatic variable 'Header' - InstrProfilingWriter.c(275): warning C4221: nonstandard extension used: 'Data': cannot be initialized using address of automatic variable 'Zeroes' Turn this warning off. This is definitely legal in C++, all compilers accept it, and I only have room for half of one language standard in my brain. - InstrProfilingValue.c(320): warning C4113: 'uint32_t (__cdecl *)()' differs in parameter lists from 'uint32_t (__cdecl *)(void)' Fix this with an explicit (void) in the prototype. - InstrProfilingMerge.c.obj : warning LNK4006: _VPMergeHook already defined in InstrProfilingMergeFile.c.obj; second definition ignored Last remaining warning. This is from linking a selectany definition with a strong definition. We need to sort out weak symbols in compiler-rt in general, though. llvm-svn: 273026
134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
/*===- InstrProfilingUtil.c - Support library for PGO instrumentation -----===*\
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|*
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|* The LLVM Compiler Infrastructure
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|*
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|* This file is distributed under the University of Illinois Open Source
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|* License. See LICENSE.TXT for details.
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|*
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\*===----------------------------------------------------------------------===*/
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#include "InstrProfilingUtil.h"
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#include "InstrProfiling.h"
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#ifdef _WIN32
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#include <direct.h>
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#include <io.h>
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#include <windows.h>
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#else
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#endif
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#ifdef COMPILER_RT_HAS_UNAME
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#include <sys/utsname.h>
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#endif
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#include <string.h>
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COMPILER_RT_VISIBILITY
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void __llvm_profile_recursive_mkdir(char *path) {
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int i;
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for (i = 1; path[i] != '\0'; ++i) {
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char save = path[i];
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if (!(path[i] == '/' || path[i] == '\\'))
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continue;
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path[i] = '\0';
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#ifdef _WIN32
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_mkdir(path);
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#else
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mkdir(path, 0755); /* Some of these will fail, ignore it. */
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#endif
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path[i] = save;
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}
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}
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#if COMPILER_RT_HAS_ATOMICS != 1
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COMPILER_RT_VISIBILITY
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uint32_t lprofBoolCmpXchg(void **Ptr, void *OldV, void *NewV) {
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void *R = *Ptr;
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if (R == OldV) {
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*Ptr = NewV;
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return 1;
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}
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return 0;
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}
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COMPILER_RT_VISIBILITY
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void *lprofPtrFetchAdd(void **Mem, long ByteIncr) {
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void *Old = *Mem;
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*((char **)Mem) += ByteIncr;
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return Old;
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}
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#endif
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#ifdef COMPILER_RT_HAS_UNAME
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COMPILER_RT_VISIBILITY int lprofGetHostName(char *Name, int Len) {
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struct utsname N;
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int R;
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if (!(R = uname(&N)))
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strncpy(Name, N.nodename, Len);
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return R;
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}
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#endif
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COMPILER_RT_VISIBILITY FILE *lprofOpenFileEx(const char *ProfileName) {
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FILE *f;
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int fd;
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#ifdef COMPILER_RT_HAS_FCNTL_LCK
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struct flock s_flock;
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s_flock.l_whence = SEEK_SET;
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s_flock.l_start = 0;
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s_flock.l_len = 0; /* Until EOF. */
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s_flock.l_pid = getpid();
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s_flock.l_type = F_WRLCK;
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fd = open(ProfileName, O_RDWR | O_CREAT, 0666);
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if (fd < 0)
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return NULL;
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while (fcntl(fd, F_SETLKW, &s_flock) == -1) {
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if (errno != EINTR) {
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if (errno == ENOLCK) {
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PROF_WARN("Data may be corrupted during profile merging : %s\n",
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"Fail to obtain file lock due to system limit.");
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}
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break;
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}
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}
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f = fdopen(fd, "r+b");
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#elif defined(_WIN32)
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HANDLE h = CreateFile(ProfileName, GENERIC_READ | GENERIC_WRITE, 0, 0,
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OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
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if (h == INVALID_HANDLE_VALUE)
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return NULL;
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fd = _open_osfhandle((intptr_t)h, 0);
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if (fd == -1) {
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CloseHandle(h);
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return NULL;
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}
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f = _fdopen(fd, "r+b");
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if (f == 0) {
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CloseHandle(h);
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return NULL;
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}
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#else
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/* Worst case no locking applied. */
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PROF_WARN("Concurrent file access is not supported : %s\n",
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"lack file locking");
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fd = open(ProfileName, O_RDWR | O_CREAT, 0666);
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if (fd < 0)
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return NULL;
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f = fdopen(fd, "r+b");
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#endif
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return f;
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}
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