tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
audk/ShellPkg/Library/UefiShellDebug1CommandsLib/Mm.c

646 lines
21 KiB
C
Raw Blame History

/** @file
Main file for Mm shell Debug1 function.
Copyright (c) 2005 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "UefiShellDebug1CommandsLib.h"
#include <Library/ShellLib.h>
#include <Protocol/PciRootBridgeIo.h>
#include <Protocol/DeviceIo.h>
typedef enum {
EfiMemory,
EFIMemoryMappedIo,
EfiIo,
EfiPciConfig,
EfiPciEConfig
} EFI_ACCESS_TYPE;
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{L"-mmio", TypeFlag},
{L"-mem", TypeFlag},
{L"-io", TypeFlag},
{L"-pci", TypeFlag},
{L"-pcie", TypeFlag},
{L"-n", TypeFlag},
{L"-w", TypeValue},
{NULL, TypeMax}
};
STATIC CONST UINT64 MaxNum[9] = { 0xff, 0xffff, 0xffffffff, 0xffffffffffffffffULL };
/**
Read some data into a buffer from memory.
@param[in] Width The width of each read.
@param[in] Addresss The memory location to start reading at.
@param[in] Size The size of Buffer in Width sized units.
@param[out] Buffer The buffer to read into.
**/
VOID
EFIAPI
ReadMem (
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Size,
OUT VOID *Buffer
)
{
//
// This function is defective. This ASSERT prevents the defect from affecting anything.
//
ASSERT(Size == 1);
do {
if (Width == EfiPciWidthUint8) {
*(UINT8 *) Buffer = *(UINT8 *) (UINTN) Address;
Address -= 1;
} else if (Width == EfiPciWidthUint16) {
*(UINT16 *) Buffer = *(UINT16 *) (UINTN) Address;
Address -= 2;
} else if (Width == EfiPciWidthUint32) {
*(UINT32 *) Buffer = *(UINT32 *) (UINTN) Address;
Address -= 4;
} else if (Width == EfiPciWidthUint64) {
*(UINT64 *) Buffer = *(UINT64 *) (UINTN) Address;
Address -= 8;
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_READ_ERROR), gShellDebug1HiiHandle);
break;
}
Size--;
} while (Size > 0);
}
/**
Write some data to memory.
@param[in] Width The width of each write.
@param[in] Addresss The memory location to start writing at.
@param[in] Size The size of Buffer in Width sized units.
@param[in] Buffer The buffer to write from.
**/
VOID
EFIAPI
WriteMem (
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Size,
IN VOID *Buffer
)
{
//
// This function is defective. This ASSERT prevents the defect from affecting anything.
//
ASSERT(Size == 1);
do {
if (Width == EfiPciWidthUint8) {
*(UINT8 *) (UINTN) Address = *(UINT8 *) Buffer;
Address += 1;
} else if (Width == EfiPciWidthUint16) {
*(UINT16 *) (UINTN) Address = *(UINT16 *) Buffer;
Address += 2;
} else if (Width == EfiPciWidthUint32) {
*(UINT32 *) (UINTN) Address = *(UINT32 *) Buffer;
Address += 4;
} else if (Width == EfiPciWidthUint64) {
*(UINT64 *) (UINTN) Address = *(UINT64 *) Buffer;
Address += 8;
} else {
ASSERT (FALSE);
}
//
//
//
Size--;
} while (Size > 0);
}
/**
Convert a string to it's hex data.
@param[in] str The pointer to the string of hex data.
@param[out] data The pointer to the buffer to fill. Valid upon a TRUE return.
@retval TRUE The conversion was successful.
@retval FALSE The conversion failed.
**/
BOOLEAN
EFIAPI
GetHex (
IN UINT16 *str,
OUT UINT64 *data
)
{
UINTN TempUint;
CHAR16 TempChar;
BOOLEAN Find;
Find = FALSE;
//
// convert hex digits
//
TempUint = 0;
TempChar = *(str++);
while (TempChar != CHAR_NULL) {
if (TempChar >= 'a' && TempChar <= 'f') {
TempChar -= 'a' - 'A';
}
if (TempChar == ' ') {
break;
}
if ((TempChar >= '0' && TempChar <= '9') || (TempChar >= 'A' && TempChar <= 'F')) {
TempUint = (TempUint << 4) | (TempChar - (TempChar >= 'A' ? 'A' - 10 : '0'));
Find = TRUE;
} else {
return FALSE;
}
TempChar = *(str++);
}
*data = TempUint;
return Find;
}
/**
Get the PCI-E Address from a PCI address format 0x0000ssbbddffrrr
where ss is SEGMENT, bb is BUS, dd is DEVICE, ff is FUNCTION
and rrr is REGISTER (extension format for PCI-E).
@param[in] InputAddress PCI address format on input.
@param[out]PciEAddress PCI-E address extention format.
**/
VOID
EFIAPI
GetPciEAddressFromInputAddress (
IN UINT64 InputAddress,
OUT UINT64 *PciEAddress
)
{
*PciEAddress = RShiftU64(InputAddress & ~(UINT64) 0xFFF, 4);
*PciEAddress += LShiftU64((UINT16) InputAddress & 0x0FFF, 32);
}
/**
Function for 'mm' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunMm (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *IoDev;
UINT64 Address;
UINT64 PciEAddress;
UINT64 Value;
UINT32 SegmentNumber;
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width;
EFI_ACCESS_TYPE AccessType;
UINT64 Buffer;
UINTN Index;
UINTN Size;
// CHAR16 *ValueStr;
BOOLEAN Complete;
CHAR16 *InputStr;
BOOLEAN Interactive;
EFI_HANDLE *HandleBuffer;
UINTN BufferSize;
UINTN ItemValue;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
CONST CHAR16 *Temp;
Address = 0;
PciEAddress = 0;
IoDev = NULL;
HandleBuffer = NULL;
BufferSize = 0;
SegmentNumber = 0;
ShellStatus = SHELL_SUCCESS;
InputStr = NULL;
//
// Parse arguments
//
Width = EfiPciWidthUint8;
Size = 1;
AccessType = EfiMemory;
// ValueStr = NULL;
Interactive = TRUE;
Package = NULL;
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR(Status)) {
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
FreePool(ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
} else {
ASSERT(FALSE);
}
} else {
if (ShellCommandLineGetCount(Package) < 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
} else if (ShellCommandLineGetCount(Package) > 3) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
} else if (ShellCommandLineGetFlag(Package, L"-w") && ShellCommandLineGetValue(Package, L"-w") == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellDebug1HiiHandle, L"-w");
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
} else {
if (ShellCommandLineGetFlag(Package, L"-mmio")) {
AccessType = EFIMemoryMappedIo;
if (ShellCommandLineGetFlag(Package, L"-mem")
||ShellCommandLineGetFlag(Package, L"-io")
||ShellCommandLineGetFlag(Package, L"-pci")
||ShellCommandLineGetFlag(Package, L"-pcie")
){
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
} else if (ShellCommandLineGetFlag(Package, L"-mem")) {
AccessType = EfiMemory;
if (ShellCommandLineGetFlag(Package, L"-io")
||ShellCommandLineGetFlag(Package, L"-pci")
||ShellCommandLineGetFlag(Package, L"-pcie")
){
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
} else if (ShellCommandLineGetFlag(Package, L"-io")) {
AccessType = EfiIo;
if (ShellCommandLineGetFlag(Package, L"-pci")
||ShellCommandLineGetFlag(Package, L"-pcie")
){
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
} else if (ShellCommandLineGetFlag(Package, L"-pci")) {
AccessType = EfiPciConfig;
if (ShellCommandLineGetFlag(Package, L"-pcie")
){
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
} else if (ShellCommandLineGetFlag(Package, L"-pcie")) {
AccessType = EfiPciEConfig;
}
}
//
// Non interactive for a script file or for the specific parameter
//
if (gEfiShellProtocol->BatchIsActive() || ShellCommandLineGetFlag (Package, L"-n")) {
Interactive = FALSE;
}
Temp = ShellCommandLineGetValue(Package, L"-w");
if (Temp != NULL) {
ItemValue = ShellStrToUintn (Temp);
switch (ItemValue) {
case 1:
Width = EfiPciWidthUint8;
Size = 1;
break;
case 2:
Width = EfiPciWidthUint16;
Size = 2;
break;
case 4:
Width = EfiPciWidthUint32;
Size = 4;
break;
case 8:
Width = EfiPciWidthUint64;
Size = 8;
break;
default:
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellDebug1HiiHandle, L"-w");
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
}
Temp = ShellCommandLineGetRawValue(Package, 1);
if (!ShellIsHexOrDecimalNumber(Temp, TRUE, FALSE) || EFI_ERROR(ShellConvertStringToUint64(Temp, (UINT64*)&Address, TRUE, FALSE))) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
Temp = ShellCommandLineGetRawValue(Package, 2);
if (Temp != NULL) {
//
// Per spec if value is specified, then -n is assumed.
//
Interactive = FALSE;
if (!ShellIsHexOrDecimalNumber(Temp, TRUE, FALSE) || EFI_ERROR(ShellConvertStringToUint64(Temp, &Value, TRUE, FALSE))) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
switch (Size) {
case 1:
if (Value > 0xFF) {
ShellStatus = SHELL_INVALID_PARAMETER;
}
break;
case 2:
if (Value > 0xFFFF) {
ShellStatus = SHELL_INVALID_PARAMETER;
}
break;
case 4:
if (Value > 0xFFFFFFFF) {
ShellStatus = SHELL_INVALID_PARAMETER;
}
break;
default:
break;
}
if (ShellStatus != SHELL_SUCCESS) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
}
if ((Address & (Size - 1)) != 0) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_NOT_ALIGNED), gShellDebug1HiiHandle, Address);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
//
// locate DeviceIO protocol interface
//
if (AccessType != EfiMemory) {
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiPciRootBridgeIoProtocolGuid,
NULL,
&BufferSize,
&HandleBuffer
);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PCIRBIO_NF), gShellDebug1HiiHandle);
ShellStatus = SHELL_NOT_FOUND;
goto Done;
}
//
// In the case of PCI or PCIE
// Get segment number and mask the segment bits in Address
//
if (AccessType == EfiPciEConfig) {
SegmentNumber = (UINT32) RShiftU64 (Address, 36) & 0xff;
Address &= 0xfffffffffULL;
} else {
if (AccessType == EfiPciConfig) {
SegmentNumber = (UINT32) RShiftU64 (Address, 32) & 0xff;
Address &= 0xffffffff;
}
}
//
// Find the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL of the specified segment number
//
for (Index = 0; Index < BufferSize; Index++) {
Status = gBS->HandleProtocol (
HandleBuffer[Index],
&gEfiPciRootBridgeIoProtocolGuid,
(VOID *) &IoDev
);
if (EFI_ERROR (Status)) {
continue;
}
if (IoDev->SegmentNumber != SegmentNumber) {
IoDev = NULL;
}
}
if (IoDev == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_SEGMENT_NOT_FOUND), gShellDebug1HiiHandle, SegmentNumber);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
}
if (AccessType == EfiIo && Address + Size > 0x10000) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_ADDRESS_RANGE), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
goto Done;
}
if (AccessType == EfiPciEConfig) {
GetPciEAddressFromInputAddress (Address, &PciEAddress);
}
//
// Set value
//
if (ShellCommandLineGetRawValue(Package, 2) != NULL) {
if (AccessType == EFIMemoryMappedIo) {
IoDev->Mem.Write (IoDev, Width, Address, 1, &Value);
} else if (AccessType == EfiIo) {
IoDev->Io.Write (IoDev, Width, Address, 1, &Value);
} else if (AccessType == EfiPciConfig) {
IoDev->Pci.Write (IoDev, Width, Address, 1, &Value);
} else if (AccessType == EfiPciEConfig) {
IoDev->Pci.Write (IoDev, Width, PciEAddress, 1, &Value);
} else {
WriteMem (Width, Address, 1, &Value);
}
ASSERT(ShellStatus == SHELL_SUCCESS);
goto Done;
}
//
// non-interactive mode
//
if (!Interactive) {
Buffer = 0;
if (AccessType == EFIMemoryMappedIo) {
if (!gEfiShellProtocol->BatchIsActive()) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_MMIO), gShellDebug1HiiHandle);
}
IoDev->Mem.Read (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiIo) {
if (!gEfiShellProtocol->BatchIsActive()) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_IO), gShellDebug1HiiHandle);
}
IoDev->Io.Read (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiPciConfig) {
if (!gEfiShellProtocol->BatchIsActive()) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_PCI), gShellDebug1HiiHandle);
}
IoDev->Pci.Read (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiPciEConfig) {
if (!gEfiShellProtocol->BatchIsActive()) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_PCIE), gShellDebug1HiiHandle);
}
IoDev->Pci.Read (IoDev, Width, PciEAddress, 1, &Buffer);
} else {
if (!gEfiShellProtocol->BatchIsActive()) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_MEM), gShellDebug1HiiHandle);
}
ReadMem (Width, Address, 1, &Buffer);
}
if (!gEfiShellProtocol->BatchIsActive()) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_ADDRESS), gShellDebug1HiiHandle, Address);
}
if (Size == 1) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF2), gShellDebug1HiiHandle, (UINTN)Buffer);
} else if (Size == 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF4), gShellDebug1HiiHandle, (UINTN)Buffer);
} else if (Size == 4) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF8), gShellDebug1HiiHandle, (UINTN)Buffer);
} else if (Size == 8) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF16), gShellDebug1HiiHandle, Buffer);
}
ShellPrintEx(-1, -1, L"\r\n");
ASSERT(ShellStatus == SHELL_SUCCESS);
goto Done;
}
//
// interactive mode
//
Complete = FALSE;
do {
if (AccessType == EfiIo && Address + Size > 0x10000) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_ADDRESS_RANGE2), gShellDebug1HiiHandle);
break;
}
Buffer = 0;
if (AccessType == EFIMemoryMappedIo) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_MMIO), gShellDebug1HiiHandle);
IoDev->Mem.Read (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiIo) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_IO), gShellDebug1HiiHandle);
IoDev->Io.Read (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiPciConfig) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_PCI), gShellDebug1HiiHandle);
IoDev->Pci.Read (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiPciEConfig) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_PCIE), gShellDebug1HiiHandle);
IoDev->Pci.Read (IoDev, Width, PciEAddress, 1, &Buffer);
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_MEM), gShellDebug1HiiHandle);
ReadMem (Width, Address, 1, &Buffer);
}
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_ADDRESS), gShellDebug1HiiHandle, Address);
if (Size == 1) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF2), gShellDebug1HiiHandle, (UINTN)Buffer);
} else if (Size == 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF4), gShellDebug1HiiHandle, (UINTN)Buffer);
} else if (Size == 4) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF8), gShellDebug1HiiHandle, (UINTN)Buffer);
} else if (Size == 8) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_BUF16), gShellDebug1HiiHandle, Buffer);
}
ShellPrintEx(-1, -1, L" > ");
//
// wait user input to modify
//
if (InputStr != NULL) {
FreePool(InputStr);
InputStr = NULL;
}
ShellPromptForResponse(ShellPromptResponseTypeFreeform, NULL, (VOID**)&InputStr);
//
// skip space characters
//
for (Index = 0; InputStr != NULL && InputStr[Index] == ' '; Index++);
//
// parse input string
//
if (InputStr != NULL && (InputStr[Index] == '.' || InputStr[Index] == 'q' || InputStr[Index] == 'Q')) {
Complete = TRUE;
} else if (InputStr == NULL || InputStr[Index] == CHAR_NULL) {
//
// Continue to next address
//
} else if (GetHex (InputStr + Index, &Buffer) && Buffer <= MaxNum[Width]) {
if (AccessType == EFIMemoryMappedIo) {
IoDev->Mem.Write (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiIo) {
IoDev->Io.Write (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiPciConfig) {
IoDev->Pci.Write (IoDev, Width, Address, 1, &Buffer);
} else if (AccessType == EfiPciEConfig) {
IoDev->Pci.Write (IoDev, Width, PciEAddress, 1, &Buffer);
} else {
WriteMem (Width, Address, 1, &Buffer);
}
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_MM_ERROR), gShellDebug1HiiHandle);
continue;
// PrintToken (STRING_TOKEN (STR_IOMOD_ERROR), HiiHandle);
}
Address += Size;
if (AccessType == EfiPciEConfig) {
GetPciEAddressFromInputAddress (Address, &PciEAddress);
}
ShellPrintEx(-1, -1, L"\r\n");
// Print (L"\n");
} while (!Complete);
}
ASSERT(ShellStatus == SHELL_SUCCESS);
Done:
if (InputStr != NULL) {
FreePool(InputStr);
}
if (HandleBuffer != NULL) {
FreePool (HandleBuffer);
}
if (Package != NULL) {
ShellCommandLineFreeVarList (Package);
}
return ShellStatus;
}
Reference in New Issue View Git Blame Copy Permalink