Commit 60bbddf3 authored by Denis Revunov's avatar Denis Revunov Committed by Denis Revunov
Browse files

[BOLT][Instrumentation][NFC] Define and use more syscall constants 

Reviewed By: Amir

Differential Revision: https://reviews.llvm.org/D154419
parent fd857f78

bolt/runtime/common.h

+11 −0
Original line number Diff line number Diff line
@@ -106,6 +106,17 @@ typedef int int32_t; 


#define MAP_FAILED ((void *)-1)



#define SEEK_SET 0 /* Seek from beginning of file.  */

#define SEEK_CUR 1 /* Seek from current position.  */

#define SEEK_END 2 /* Seek from end of file.  */



#define O_RDONLY 0

#define O_WRONLY 1

#define O_RDWR 2

#define O_CREAT 64

#define O_TRUNC 512

#define O_APPEND 1024



// Functions that are required by freestanding environment. Compiler may

// generate calls to these implicitly.

extern "C" {

bolt/runtime/instr.cpp

+4 −7
Original line number Diff line number Diff line
@@ -684,8 +684,7 @@ static char *getBinaryPath() { 
    return TargetPath;



  unsigned long CurAddr = (unsigned long)__get_pc();

  uint64_t FDdir = __open(DirPath,

                          /*flags=*/0 /*O_RDONLY*/,

  uint64_t FDdir = __open(DirPath, O_RDONLY,

                          /*mode=*/0666);

  assert(static_cast<int64_t>(FDdir) >= 0,

         "failed to open /proc/self/map_files");
@@ -720,15 +719,14 @@ ProfileWriterContext readDescriptions() { 
  char *BinPath = getBinaryPath();

  assert(BinPath && BinPath[0] != '\0', "failed to find binary path");



  uint64_t FD = __open(BinPath,

                       /*flags=*/0 /*O_RDONLY*/,

  uint64_t FD = __open(BinPath, O_RDONLY,

                       /*mode=*/0666);

  assert(static_cast<int64_t>(FD) >= 0, "failed to open binary path");



  Result.FileDesc = FD;



  // mmap our binary to memory

  uint64_t Size = __lseek(FD, 0, 2 /*SEEK_END*/);

  uint64_t Size = __lseek(FD, 0, SEEK_END);

  uint8_t *BinContents = reinterpret_cast<uint8_t *>(

      __mmap(0, Size, PROT_READ, MAP_PRIVATE, FD, 0));

  assert(BinContents != MAP_FAILED, "readDescriptions: Failed to mmap self!");
@@ -1470,8 +1468,7 @@ int openProfile() { 
    Ptr = strCopy(Ptr, ".fdata", BufSize - (Ptr - Buf + 1));

  }

  *Ptr++ = '\0';

  uint64_t FD = __open(Buf,

                       /*flags=*/0x241 /*O_WRONLY|O_TRUNC|O_CREAT*/,

  uint64_t FD = __open(Buf, O_WRONLY | O_TRUNC | O_CREAT,

                       /*mode=*/0666);

  if (static_cast<int64_t>(FD) < 0) {

    report("Error while trying to open profile file for writing: ");