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

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Reviewed By: Amir

Differential Revision: https://reviews.llvm.org/D154419
This commit is contained in:
Denis Revunov 2023-07-04 11:42:36 +03:00 committed by Denis Revunov
parent fd857f786f
commit 60bbddf3c1
2 changed files with 15 additions and 7 deletions
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11
bolt/runtime/common.h
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@ -106,6 +106,17 @@ typedef int int32_t;
#define MAP_FAILED ((void *)-1) #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 // Functions that are required by freestanding environment. Compiler may
// generate calls to these implicitly. // generate calls to these implicitly.
extern "C" { extern "C" {

11
bolt/runtime/instr.cpp
View File

@ -684,8 +684,7 @@ static char *getBinaryPath() {
return TargetPath; return TargetPath;
unsigned long CurAddr = (unsigned long)__get_pc(); unsigned long CurAddr = (unsigned long)__get_pc();
uint64_t FDdir = __open(DirPath, uint64_t FDdir = __open(DirPath, O_RDONLY,
/*flags=*/0 /*O_RDONLY*/,
/*mode=*/0666); /*mode=*/0666);
assert(static_cast<int64_t>(FDdir) >= 0, assert(static_cast<int64_t>(FDdir) >= 0,
"failed to open /proc/self/map_files"); "failed to open /proc/self/map_files");
@ -720,15 +719,14 @@ ProfileWriterContext readDescriptions() {
char *BinPath = getBinaryPath(); char *BinPath = getBinaryPath();
assert(BinPath && BinPath[0] != '\0', "failed to find binary path"); assert(BinPath && BinPath[0] != '\0', "failed to find binary path");
uint64_t FD = __open(BinPath, uint64_t FD = __open(BinPath, O_RDONLY,
/*flags=*/0 /*O_RDONLY*/,
/*mode=*/0666); /*mode=*/0666);
assert(static_cast<int64_t>(FD) >= 0, "failed to open binary path"); assert(static_cast<int64_t>(FD) >= 0, "failed to open binary path");
Result.FileDesc = FD; Result.FileDesc = FD;
// mmap our binary to memory // 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 *>( uint8_t *BinContents = reinterpret_cast<uint8_t *>(
__mmap(0, Size, PROT_READ, MAP_PRIVATE, FD, 0)); __mmap(0, Size, PROT_READ, MAP_PRIVATE, FD, 0));
assert(BinContents != MAP_FAILED, "readDescriptions: Failed to mmap self!"); assert(BinContents != MAP_FAILED, "readDescriptions: Failed to mmap self!");
@ -1470,8 +1468,7 @@ int openProfile() {
Ptr = strCopy(Ptr, ".fdata", BufSize - (Ptr - Buf + 1)); Ptr = strCopy(Ptr, ".fdata", BufSize - (Ptr - Buf + 1));
} }
*Ptr++ = '\0'; *Ptr++ = '\0';
uint64_t FD = __open(Buf, uint64_t FD = __open(Buf, O_WRONLY | O_TRUNC | O_CREAT,
/*flags=*/0x241 /*O_WRONLY|O_TRUNC|O_CREAT*/,
/*mode=*/0666); /*mode=*/0666);
if (static_cast<int64_t>(FD) < 0) { if (static_cast<int64_t>(FD) < 0) {
report("Error while trying to open profile file for writing: "); report("Error while trying to open profile file for writing: ");