1
0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-22 23:31:32 +00:00
llvm-6502/lib/System/Win32/Process.inc
Dan Gohman ec080467f5 Fix llvm-extract's "writing bitcode to a terminal" warning, which wasn't
working. To support this, add an is_displayed() function to raw_ostream,
and generalize Process::StandardOutIsDisplayed and friends in order to
support it.

Also, call RemoveFileOnSignal before creating a file instead of after, so
that the file isn't left behind if the program is interrupted between when
the file is created and RemoveFileOnSignal is called.

While here, add a -S to llvm-extract and port it to IRReader so that it
supports assembly input.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81568 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 20:46:33 +00:00

222 lines
5.9 KiB
C++

//===- Win32/Process.cpp - Win32 Process Implementation ------- -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides the Win32 specific implementation of the Process class.
//
//===----------------------------------------------------------------------===//
#include "Win32.h"
#include <psapi.h>
#include <malloc.h>
#include <io.h>
#ifdef __MINGW32__
#if (HAVE_LIBPSAPI != 1)
#error "libpsapi.a should be present"
#endif
#else
#pragma comment(lib, "psapi.lib")
#endif
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only Win32 specific code
//=== and must not be UNIX code
//===----------------------------------------------------------------------===//
#ifdef __MINGW32__
// This ban should be lifted when MinGW 1.0+ has defined this value.
# define _HEAPOK (-2)
#endif
namespace llvm {
using namespace sys;
// This function retrieves the page size using GetSystemInfo and is present
// solely so it can be called once in Process::GetPageSize to initialize the
// static variable PageSize.
inline unsigned GetPageSizeOnce() {
// NOTE: A 32-bit application running under WOW64 is supposed to use
// GetNativeSystemInfo. However, this interface is not present prior
// to Windows XP so to use it requires dynamic linking. It is not clear
// how this affects the reported page size, if at all. One could argue
// that LLVM ought to run as 64-bits on a 64-bit system, anyway.
SYSTEM_INFO info;
GetSystemInfo(&info);
return static_cast<unsigned>(info.dwPageSize);
}
unsigned
Process::GetPageSize() {
static const unsigned PageSize = GetPageSizeOnce();
return PageSize;
}
size_t
Process::GetMallocUsage()
{
_HEAPINFO hinfo;
hinfo._pentry = NULL;
size_t size = 0;
while (_heapwalk(&hinfo) == _HEAPOK)
size += hinfo._size;
return size;
}
size_t
Process::GetTotalMemoryUsage()
{
PROCESS_MEMORY_COUNTERS pmc;
GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc));
return pmc.PagefileUsage;
}
void
Process::GetTimeUsage(
TimeValue& elapsed, TimeValue& user_time, TimeValue& sys_time)
{
elapsed = TimeValue::now();
uint64_t ProcCreate, ProcExit, KernelTime, UserTime;
GetProcessTimes(GetCurrentProcess(), (FILETIME*)&ProcCreate,
(FILETIME*)&ProcExit, (FILETIME*)&KernelTime,
(FILETIME*)&UserTime);
// FILETIME's are # of 100 nanosecond ticks (1/10th of a microsecond)
user_time.seconds( UserTime / 10000000 );
user_time.nanoseconds( unsigned(UserTime % 10000000) * 100 );
sys_time.seconds( KernelTime / 10000000 );
sys_time.nanoseconds( unsigned(KernelTime % 10000000) * 100 );
}
int Process::GetCurrentUserId()
{
return 65536;
}
int Process::GetCurrentGroupId()
{
return 65536;
}
// Some LLVM programs such as bugpoint produce core files as a normal part of
// their operation. To prevent the disk from filling up, this configuration item
// does what's necessary to prevent their generation.
void Process::PreventCoreFiles() {
// Windows doesn't do core files, but it does do modal pop-up message
// boxes. As this method is used by bugpoint, preventing these pop-ups
// is the moral equivalent of suppressing core files.
SetErrorMode(SEM_FAILCRITICALERRORS |
SEM_NOGPFAULTERRORBOX |
SEM_NOOPENFILEERRORBOX);
}
bool Process::StandardInIsUserInput() {
return FileDescriptorIsDisplayed(0);
}
bool Process::StandardOutIsDisplayed() {
return FileDescriptorIsDisplayed(1);
}
bool Process::StandardErrIsDisplayed() {
return FileDescriptorIsDisplayed(2);
}
bool Process::FileDescriptorIsDisplayed(int fd) {
return GetFileType((HANDLE)_get_osfhandle(fd)) == FILE_TYPE_CHAR;
}
unsigned Process::StandardOutColumns() {
unsigned Columns = 0;
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
Columns = csbi.dwSize.X;
return Columns;
}
unsigned Process::StandardErrColumns() {
unsigned Columns = 0;
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_ERROR_HANDLE), &csbi))
Columns = csbi.dwSize.X;
return Columns;
}
// It always has colors.
bool Process::StandardErrHasColors() {
return StandardErrIsDisplayed();
}
bool Process::StandardOutHasColors() {
return StandardOutIsDisplayed();
}
namespace {
class DefaultColors
{
private:
WORD defaultColor;
public:
DefaultColors()
:defaultColor(GetCurrentColor()) {}
static unsigned GetCurrentColor() {
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
return csbi.wAttributes;
return 0;
}
WORD operator()() const { return defaultColor; }
};
DefaultColors defaultColors;
}
bool Process::ColorNeedsFlush() {
return true;
}
const char *Process::OutputBold(bool bg) {
WORD colors = DefaultColors::GetCurrentColor();
if (bg)
colors |= BACKGROUND_INTENSITY;
else
colors |= FOREGROUND_INTENSITY;
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
return 0;
}
const char *Process::OutputColor(char code, bool bold, bool bg) {
WORD colors;
if (bg) {
colors = ((code&1) ? BACKGROUND_RED : 0) |
((code&2) ? BACKGROUND_GREEN : 0 ) |
((code&4) ? BACKGROUND_BLUE : 0);
if (bold)
colors |= BACKGROUND_INTENSITY;
} else {
colors = ((code&1) ? FOREGROUND_RED : 0) |
((code&2) ? FOREGROUND_GREEN : 0 ) |
((code&4) ? FOREGROUND_BLUE : 0);
if (bold)
colors |= FOREGROUND_INTENSITY;
}
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
return 0;
}
const char *Process::ResetColor() {
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), defaultColors());
return 0;
}
}