diff options
Diffstat (limited to 'Tools/CCode/Source/GenDepex/GenDepex.c')
| -rw-r--r-- | Tools/CCode/Source/GenDepex/GenDepex.c | 919 |
1 files changed, 919 insertions, 0 deletions
diff --git a/Tools/CCode/Source/GenDepex/GenDepex.c b/Tools/CCode/Source/GenDepex/GenDepex.c new file mode 100644 index 0000000000..3818649330 --- /dev/null +++ b/Tools/CCode/Source/GenDepex/GenDepex.c @@ -0,0 +1,919 @@ +/*++
+
+Copyright (c) 2004, Intel Corporation
+All rights reserved. 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.
+
+Module Name:
+
+ GenDepex.c
+
+Abstract:
+
+ Generate Dependency Expression ("GenDepex")
+
+ Infix to Postfix Algorithm
+
+ This code has been scrubbed to be free of having any EFI core tree dependencies.
+ It should build in any environment that supports a standard C-library w/ string
+ operations and File I/O services.
+
+ As an example of usage, consider the following:
+
+ The input user file could be something like "Sample.DXS" whose contents are
+
+ #include "Tiano.h"
+
+ DEPENDENCY_START
+ NOT (DISK_IO_PROTOCOL AND SIMPLE_FILE_SYSTEM_PROTOCOL)
+ OR EFI_PXE_BASE_CODE_PROTOCOL
+ DEPENDENCY_END
+
+ This file is then washed through the C-preprocessor, viz.,
+
+ cl /EP Sample.DXS > Sample.TMP1
+
+ This yields the following file "Sample.TMP1" whose contents are
+
+ DEPENDENCY_START
+ NOT ({ 0xce345171, 0xba0b, 0x11d2, 0x8e, 0x4f, 0x0, 0xa0, 0xc9, 0x69, 0x72,
+ 0x3b } AND { 0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69,
+ 0x72, 0x3b }) OR { 0x03c4e603, 0xac28, 0x11d3, 0x9a, 0x2d, 0x00, 0x90, 0x27,
+ 0x3f, 0xc1, 0x4d }
+ DEPENDENCY_END
+
+ This file, in turn, will be fed into the utility, viz.,
+
+ GenDepex Sample.TMP1 Sample.TMP2
+
+ With a file that is 55 bytes long:
+
+ 55 bytes for the grammar binary
+ PUSH opcode - 1 byte
+ GUID Instance - 16 bytes
+ PUSH opcode - 1 byte
+ GUID Instance - 16 bytes
+ AND opcode - 1 byte
+ NOT opcode - 1 byte
+ PUSH opcode - 1 byte
+ GUID Instance - 16 bytes
+ OR opcode - 1 byte
+ END opcode - 1 byte
+
+ The file "Sample.TMP2" could be fed via a Section-builder utility
+ (GenSection) that would be used for the creation of a dependency
+ section file (.DPX) which in turn would be used by a generate FFS
+ utility (GenFfsFile) to produce a DXE driver/core (.DXE) or
+ a DXE application (.APP) file.
+
+ Complies with Tiano C Coding Standards Document, version 0.31, 12 Dec 2000.
+
+--*/
+
+#include "GenDepex.h"
+
+#define TOOL_NAME "GenDepex"
+
+extern
+ParseDepex (
+ IN INT8 *Pbegin,
+ IN UINT32 length
+ );
+
+VOID
+PrintGenDepexUtilityInfo (
+ VOID
+ )
+/*++
+
+Routine Description:
+
+ Displays the standard utility information to SDTOUT.
+
+Arguments:
+
+ None
+
+Returns:
+
+ None
+
+--*/
+{
+ printf (
+ "%s, Tiano Dependency Expression Generation Utility. Version %d.%d.\n",
+ UTILITY_NAME,
+ UTILITY_MAJOR_VERSION,
+ UTILITY_MINOR_VERSION
+ );
+ printf ("Copyright (C) 1996-2002 Intel Corporation. All rights reserved.\n\n");
+}
+
+VOID
+PrintGenDepexUsageInfo (
+ VOID
+ )
+/*++
+
+Routine Description:
+
+ Displays the utility usage syntax to STDOUT.
+
+Arguments:
+
+ None
+
+Returns:
+
+ None
+
+--*/
+{
+ printf (
+ "Usage: %s -I <INFILE> -O <OUTFILE> [-P <Optional Boundary for padding up>] \n",
+ UTILITY_NAME
+ );
+ printf (" Where:\n");
+ printf (" <INFILE> is the input pre-processed dependency text files name.\n");
+ printf (" <OUTFILE> is the output binary dependency files name.\n");
+ printf (" <Optional Boundary for padding up> is the padding integer value.\n");
+ printf (" This is the boundary to align the output file size to.\n");
+}
+
+DEPENDENCY_OPCODE
+PopOpCode (
+ IN OUT VOID **Stack
+ )
+/*++
+
+Routine Description:
+
+ Pop an element from the Opcode stack.
+
+Arguments:
+
+ Stack Current top of the OpCode stack location
+
+Returns:
+
+ DEPENDENCY_OPCODE OpCode at the top of the OpCode stack.
+ Stack New top of the OpCode stack location
+
+
+--*/
+{
+ DEPENDENCY_OPCODE *OpCodePtr;
+
+ OpCodePtr = *Stack;
+ OpCodePtr--;
+ *Stack = OpCodePtr;
+ return *OpCodePtr;
+}
+
+VOID
+PushOpCode (
+ IN OUT VOID **Stack,
+ IN DEPENDENCY_OPCODE OpCode
+ )
+/*++
+
+Routine Description:
+
+ Push an element onto the Opcode Stack
+
+Arguments:
+
+ Stack Current top of the OpCode stack location
+ OpCode OpCode to push onto the stack
+
+Returns:
+
+ Stack New top of the OpCode stack location
+
+--*/
+{
+ DEPENDENCY_OPCODE *OpCodePtr;
+
+ OpCodePtr = *Stack;
+ *OpCodePtr = OpCode;
+ OpCodePtr++;
+ *Stack = OpCodePtr;
+}
+
+EFI_STATUS
+GenerateDependencyExpression (
+ IN FILE *InFile,
+ IN OUT FILE *OutFile,
+ IN INT8 Padding OPTIONAL
+ )
+/*++
+
+Routine Description:
+
+ This takes the pre-compiled dependency text file and
+ converts it into a binary dependency file.
+
+ The BNF for the dependency expression is as follows
+ (from the DXE 1.0 Draft specification).
+
+ The inputted BNF grammar is thus:
+ <depex> ::= sor <dep> |
+ before GUID <dep> |
+ after GUID <dep> |
+ <bool>
+
+ <dep> ::= <bool> |
+
+ <bool> ::= <bool> and <term> |
+ <bool> or <term> |
+ <term>
+
+ <term> ::= not <factor> |
+ <factor>
+
+ <factor> ::= ( <bool> ) |
+ <term> <term> |
+ GUID |
+ <boolval>
+
+ <boolval> ::= true |
+ false
+
+ The outputed binary grammer is thus:
+ <depex> ::= sor <dep> |
+ before <depinst> <dep> |
+ after <depinst> <dep> |
+ <bool>
+
+ <dep> ::= <bool> |
+
+ <bool> ::= <bool> and <term> |
+ <bool> or <term> | <term>
+
+ <term> ::= not <factor> |
+ <factor>
+
+ <factor> ::= ( <bool> ) |
+ <term> <term> |
+ <boolval> |
+ <depinst> |
+ <termval>
+
+ <boolval> ::= true |
+ false
+
+ <depinst> ::= push GUID
+
+ <termval> ::= end
+
+ BugBug: A correct grammer is parsed correctly. A file that violates the
+ grammer may parse when it should generate an error. There is some
+ error checking and it covers most of the case when it's an include
+ of definition issue. An ill formed expresion may not be detected.
+
+Arguments:
+
+ InFile - Input pre-compiled text file of the dependency expression.
+ This needs to be in ASCII.
+ The file pointer can not be NULL.
+
+ OutFile - Binary dependency file.
+ The file pointer can not be NULL.
+
+ Padding - OPTIONAL integer value to pad the output file to.
+
+
+Returns:
+
+ EFI_SUCCESS The function completed successfully.
+ EFI_INVALID_PARAMETER One of the parameters in the text file was invalid.
+ EFI_OUT_OF_RESOURCES Unable to allocate memory.
+ EFI_ABORTED An misc error occurred.
+
+--*/
+{
+ INT8 *Ptrx;
+ INT8 *Pend;
+ INT8 *EvaluationStack;
+ INT8 *StackPtr;
+ INT8 *Buffer;
+ INT8 Line[LINESIZE];
+ UINTN Index;
+ UINTN OutFileSize;
+ UINTN FileSize;
+ UINTN Results;
+ BOOLEAN NotDone;
+ BOOLEAN Before_Flag;
+ BOOLEAN After_Flag;
+ BOOLEAN Dep_Flag;
+ BOOLEAN SOR_Flag;
+ EFI_GUID Guid;
+ UINTN ArgCountParsed;
+ DEPENDENCY_OPCODE Opcode;
+
+ Before_Flag = FALSE;
+ After_Flag = FALSE;
+ Dep_Flag = FALSE;
+ SOR_Flag = FALSE;
+
+ memset (Line, 0, LINESIZE);
+
+ OutFileSize = 0;
+
+ EvaluationStack = (INT8 *) malloc (EVAL_STACK_SIZE);
+
+ if (EvaluationStack != NULL) {
+ StackPtr = EvaluationStack;
+ } else {
+ printf ("Unable to allocate memory to EvaluationStack - Out of resources\n");
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Results = (UINTN) fseek (InFile, 0, SEEK_END);
+
+ if (Results != 0) {
+ printf ("FSEEK failed - Aborted\n");
+ return EFI_ABORTED;
+ }
+
+ FileSize = ftell (InFile);
+
+ if (FileSize == -1L) {
+ printf ("FTELL failed - Aborted\n");
+ return EFI_ABORTED;
+ }
+
+ Buffer = (INT8 *) malloc (FileSize + BUFFER_SIZE);
+
+ if (Buffer == NULL) {
+ printf ("Unable to allocate memory to Buffer - Out of resources\n");
+ free (EvaluationStack);
+
+ Results = (UINTN) fclose (InFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ Results = (UINTN) fclose (OutFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Results = (UINTN) fseek (InFile, 0, SEEK_SET);
+
+ if (Results != 0) {
+ printf ("FSEEK failed - Aborted\n");
+ return EFI_ABORTED;
+ }
+
+ memset (Buffer, 0, FileSize + BUFFER_SIZE);
+ fread (Buffer, FileSize, 1, InFile);
+
+ Ptrx = Buffer;
+ Pend = Ptrx + FileSize - strlen (DEPENDENCY_END);
+ Index = FileSize;
+
+ NotDone = TRUE;
+ while ((Index--) && NotDone) {
+
+ if (strncmp (Pend, DEPENDENCY_END, strlen (DEPENDENCY_END)) == 0) {
+ NotDone = FALSE;
+ } else {
+ Pend--;
+ }
+ }
+
+ if (NotDone) {
+ printf ("Couldn't find end string %s\n", DEPENDENCY_END);
+
+ Results = (UINTN) fclose (InFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ Results = (UINTN) fclose (OutFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ free (Buffer);
+ free (EvaluationStack);
+
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Index = FileSize;
+
+ NotDone = TRUE;
+ while ((Index--) && NotDone) {
+
+ if (strncmp (Ptrx, DEPENDENCY_START, strlen (DEPENDENCY_START)) == 0) {
+ Ptrx += sizeof (DEPENDENCY_START);
+ NotDone = FALSE;
+ //
+ // BUGBUG -- should Index be decremented by sizeof(DEPENDENCY_START)?
+ //
+ } else {
+ Ptrx++;
+ }
+ }
+
+ if (NotDone) {
+ printf ("Couldn't find start string %s\n", DEPENDENCY_START);
+
+ Results = (UINTN) fclose (InFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ Results = (UINTN) fclose (OutFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ free (Buffer);
+ free (EvaluationStack);
+
+ return EFI_INVALID_PARAMETER;
+ }
+ //
+ // validate the syntax of expression
+ //
+ if (!ParseDepex (Ptrx, Pend - Ptrx - 1)) {
+ printf ("The syntax of expression is wrong\n");
+
+ Results = (UINTN) fclose (InFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ Results = (UINTN) fclose (OutFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ free (Buffer);
+ free (EvaluationStack);
+
+ return EFI_INVALID_PARAMETER;
+ }
+
+ NotDone = TRUE;
+
+ while ((Index--) && NotDone) {
+
+ if (*Ptrx == ' ') {
+ Ptrx++;
+ } else if (*Ptrx == '\n' || *Ptrx == '\r') {
+ Ptrx++;
+ } else if (strncmp (Ptrx, OPERATOR_SOR, strlen (OPERATOR_SOR)) == 0) {
+ //
+ // Checks for some invalid dependencies
+ //
+ if (Before_Flag) {
+
+ printf ("A BEFORE operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (After_Flag) {
+
+ printf ("An AFTER operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (SOR_Flag) {
+
+ printf ("Another SOR operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (Dep_Flag) {
+
+ printf ("The Schedule On Request - SOR operator must be the first operator following DEPENDENCY_START\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else {
+ //
+ // BUGBUG - This was not in the spec but is in the CORE code
+ // An OPERATOR_SOR has to be first - following the DEPENDENCY_START
+ //
+ fputc (EFI_DEP_SOR, OutFile);
+ OutFileSize++;
+ Ptrx += sizeof (OPERATOR_SOR);
+ SOR_Flag = TRUE;
+
+ }
+ } else if (strncmp (Ptrx, OPERATOR_BEFORE, strlen (OPERATOR_BEFORE)) == 0) {
+ //
+ // Checks for some invalid dependencies
+ //
+ if (Before_Flag) {
+
+ printf ("Another BEFORE operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (After_Flag) {
+
+ printf ("An AFTER operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (SOR_Flag) {
+
+ printf ("A SOR operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (Dep_Flag) {
+
+ printf ("The BEFORE operator must be the first operator following DEPENDENCY_START\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else {
+ fputc (EFI_DEP_BEFORE, OutFile);
+ OutFileSize++;
+ Ptrx += sizeof (OPERATOR_BEFORE);
+ Before_Flag = TRUE;
+ }
+ } else if (strncmp (Ptrx, OPERATOR_AFTER, strlen (OPERATOR_AFTER)) == 0) {
+ //
+ // Checks for some invalid dependencies
+ //
+ if (Before_Flag) {
+
+ printf ("A BEFORE operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (After_Flag) {
+
+ printf ("Another AFTER operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (SOR_Flag) {
+
+ printf ("A SOR operator was detected.\n");
+ printf ("There can only be one SOR or one AFTER or one BEFORE operator\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (Dep_Flag) {
+
+ printf ("The AFTER operator must be the first operator following DEPENDENCY_START\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else {
+ fputc (EFI_DEP_AFTER, OutFile);
+ OutFileSize++;
+ Ptrx += sizeof (OPERATOR_AFTER);
+ Dep_Flag = TRUE;
+ After_Flag = TRUE;
+ }
+ } else if (strncmp (Ptrx, OPERATOR_AND, strlen (OPERATOR_AND)) == 0) {
+ while (StackPtr != EvaluationStack) {
+ Opcode = PopOpCode ((VOID **) &StackPtr);
+ if (Opcode != DXE_DEP_LEFT_PARENTHESIS) {
+ fputc (Opcode, OutFile);
+ OutFileSize++;
+ } else {
+ PushOpCode ((VOID **) &StackPtr, DXE_DEP_LEFT_PARENTHESIS);
+ break;
+ }
+ }
+
+ PushOpCode ((VOID **) &StackPtr, EFI_DEP_AND);
+ Ptrx += sizeof (OPERATOR_AND);
+ Dep_Flag = TRUE;
+
+ } else if (strncmp (Ptrx, OPERATOR_OR, strlen (OPERATOR_OR)) == 0) {
+ while (StackPtr != EvaluationStack) {
+ Opcode = PopOpCode ((VOID **) &StackPtr);
+ if (Opcode != DXE_DEP_LEFT_PARENTHESIS) {
+ fputc (Opcode, OutFile);
+ OutFileSize++;
+ } else {
+ PushOpCode ((VOID **) &StackPtr, DXE_DEP_LEFT_PARENTHESIS);
+ break;
+ }
+ }
+
+ PushOpCode ((VOID **) &StackPtr, EFI_DEP_OR);
+ Ptrx += sizeof (OPERATOR_OR);
+ Dep_Flag = TRUE;
+
+ } else if (strncmp (Ptrx, OPERATOR_NOT, strlen (OPERATOR_NOT)) == 0) {
+ while (StackPtr != EvaluationStack) {
+ Opcode = PopOpCode ((VOID **) &StackPtr);
+ if (Opcode != DXE_DEP_LEFT_PARENTHESIS) {
+ fputc (Opcode, OutFile);
+ OutFileSize++;
+ } else {
+ PushOpCode ((VOID **) &StackPtr, DXE_DEP_LEFT_PARENTHESIS);
+ break;
+ }
+ }
+
+ PushOpCode ((VOID **) &StackPtr, EFI_DEP_NOT);
+ Ptrx += sizeof (OPERATOR_NOT);
+ Dep_Flag = TRUE;
+
+ } else if (*Ptrx == '\t') {
+
+ printf ("File contains tabs. This violates the coding standard\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (*Ptrx == '\n') {
+ //
+ // Skip the newline character in the file
+ //
+ Ptrx++;
+
+ } else if (strncmp (Ptrx, OPERATOR_LEFT_PARENTHESIS, strlen (OPERATOR_LEFT_PARENTHESIS)) == 0) {
+ PushOpCode ((VOID **) &StackPtr, DXE_DEP_LEFT_PARENTHESIS);
+
+ Ptrx += strlen (OPERATOR_LEFT_PARENTHESIS);
+ Dep_Flag = TRUE;
+
+ } else if (strncmp (Ptrx, OPERATOR_RIGHT_PARENTHESIS, strlen (OPERATOR_RIGHT_PARENTHESIS)) == 0) {
+ while (StackPtr != EvaluationStack) {
+ Opcode = PopOpCode ((VOID **) &StackPtr);
+ if (Opcode != DXE_DEP_LEFT_PARENTHESIS) {
+ fputc (Opcode, OutFile);
+ OutFileSize++;
+ } else {
+ break;
+ }
+ }
+
+ Ptrx += strlen (OPERATOR_RIGHT_PARENTHESIS);
+ Dep_Flag = TRUE;
+
+ } else if (strncmp (Ptrx, OPERATOR_TRUE, strlen (OPERATOR_TRUE)) == 0) {
+
+ fputc (EFI_DEP_TRUE, OutFile);
+
+ OutFileSize++;
+
+ //
+ // OutFileSize += sizeof (EFI_DEP_TRUE);
+ //
+ Dep_Flag = TRUE;
+
+ Ptrx += strlen (OPERATOR_TRUE);
+
+ } else if (strncmp (Ptrx, OPERATOR_FALSE, strlen (OPERATOR_FALSE)) == 0) {
+
+ fputc (EFI_DEP_FALSE, OutFile);
+
+ OutFileSize++;
+
+ //
+ // OutFileSize += sizeof (EFI_DEP_FALSE);
+ //
+ Dep_Flag = TRUE;
+
+ Ptrx += strlen (OPERATOR_FALSE);
+
+ } else if (*Ptrx == '{') {
+ Ptrx++;
+
+ if (*Ptrx == ' ') {
+ Ptrx++;
+ }
+
+ {
+ int byte_index;
+ // This is an array of UINT32s. sscanf will trash memory
+ // if you try to read into a UINT8 with a %x formatter.
+ UINT32 Guid_Data4[8];
+
+ ArgCountParsed = sscanf (
+ Ptrx,
+ "%x, %x, %x, { %x, %x, %x, %x, %x, %x, %x, %x }",
+ &Guid.Data1,
+ &Guid.Data2,
+ &Guid.Data3,
+ &Guid_Data4[0],
+ &Guid_Data4[1],
+ &Guid_Data4[2],
+ &Guid_Data4[3],
+ &Guid_Data4[4],
+ &Guid_Data4[5],
+ &Guid_Data4[6],
+ &Guid_Data4[7]
+ );
+
+ // Now we can copy the 32 bit ints into the GUID.
+ for (byte_index=0; byte_index<8; byte_index++) {
+ Guid.Data4[byte_index] = (UINT8) Guid_Data4[byte_index];
+ }
+ }
+
+ if (ArgCountParsed != 11) {
+ printf ("We have found an illegal GUID\n");
+ printf ("Fix your depex\n");
+ exit (-1);
+ }
+
+ while (*Ptrx != '}') {
+ Ptrx++;
+ }
+
+ Ptrx++;
+ while (*Ptrx != '}') {
+ Ptrx++;
+ }
+ //
+ // Absorb the closing }
+ //
+ Ptrx++;
+
+ //
+ // Don't provide a PUSH Opcode for the Before and After case
+ //
+ if ((!Before_Flag) && (!After_Flag)) {
+ fputc (EFI_DEP_PUSH, OutFile);
+ OutFileSize++;
+ }
+
+ fwrite (&Guid, sizeof (EFI_GUID), 1, OutFile);
+
+ OutFileSize += sizeof (EFI_GUID);
+ Dep_Flag = TRUE;
+
+ } else if (strncmp (Ptrx, DEPENDENCY_END, strlen (DEPENDENCY_END)) == 0) {
+ NotDone = FALSE;
+ } else {
+ //
+ // Not a valid construct. Null terminate somewhere out there and
+ // print an error message.
+ //
+ *(Ptrx + 20) = 0;
+ printf (TOOL_NAME " ERROR: Unrecognized input at: \"%s\"...\n", Ptrx);
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ //
+ // DRAIN();
+ //
+ while (StackPtr != EvaluationStack) {
+ fputc (PopOpCode ((VOID **) &StackPtr), OutFile);
+ OutFileSize++;
+ }
+
+ if (OutFileSize == 0) {
+ printf ("Grammer contains no operators or constants\n");
+ return EFI_INVALID_PARAMETER;
+ }
+
+ fputc (EFI_DEP_END, OutFile);
+
+ OutFileSize++;
+
+ //
+ // Checks for invalid padding values
+ //
+ if (Padding < 0) {
+
+ printf ("The inputted padding value was %d\n", Padding);
+ printf ("The optional padding value can not be less than ZERO\n");
+ return EFI_INVALID_PARAMETER;
+
+ } else if (Padding > 0) {
+
+ while ((OutFileSize % Padding) != 0) {
+
+ fputc (' ', OutFile);
+ OutFileSize++;
+ }
+ }
+
+ Results = (UINTN) fclose (InFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ Results = (UINTN) fclose (OutFile);
+ if (Results != 0) {
+ printf ("FCLOSE failed\n");
+ }
+
+ free (Buffer);
+ free (EvaluationStack);
+
+ return EFI_SUCCESS;
+} // End GenerateDependencyExpression function
+
+int
+main (
+ IN UINTN argc,
+ IN CHAR8 *argv[]
+ )
+/*++
+
+Routine Description:
+
+ Parse user entries. Print some rudimentary help
+
+Arguments:
+
+ argc The count of input arguments
+ argv The input arguments string array
+
+Returns:
+
+ EFI_SUCCESS The function completed successfully.
+ EFI_INVALID_PARAMETER One of the input parameters was invalid or one of the parameters in the text file was invalid.
+ EFI_OUT_OF_RESOURCES Unable to allocate memory.
+ EFI_ABORTED Unable to open/create a file or a misc error.
+
+--*/
+// TODO: ] - add argument and description to function comment
+{
+ FILE *OutFile;
+ FILE *InFile;
+ UINT8 Padding;
+ UINTN Index;
+ BOOLEAN Input_Flag;
+ BOOLEAN Output_Flag;
+ BOOLEAN Pad_Flag;
+
+ InFile = NULL;
+ OutFile = NULL;
+ Padding = 0;
+ Input_Flag = FALSE;
+ Output_Flag = FALSE;
+ Pad_Flag = FALSE;
+
+ if (argc < 5) {
+ printf ("Not enough arguments\n");
+ PrintGenDepexUsageInfo ();
+ return EFI_INVALID_PARAMETER;
+ }
+
+ for (Index = 1; Index < argc - 1; Index++) {
+
+ if ((strcmp (argv[Index], "-I") == 0) || (strcmp (argv[Index], "-i") == 0)) {
+
+ if (!Input_Flag) {
+
+ InFile = fopen (argv[Index + 1], "rb");
+ Input_Flag = TRUE;
+
+ } else {
+ printf ("GenDepex only allows one INPUT (-I) argument\n");
+ return EFI_INVALID_PARAMETER;
+ }
+
+ } else if ((strcmp (argv[Index], "-O") == 0) || (strcmp (argv[Index], "-o") == 0)) {
+
+ if (!Output_Flag) {
+
+ OutFile = fopen (argv[Index + 1], "wb");
+ Output_Flag = TRUE;
+
+ } else {
+ printf ("GenDepex only allows one OUTPUT (-O) argument\n");
+ return EFI_INVALID_PARAMETER;
+ }
+
+ } else if ((strcmp (argv[Index], "-P") == 0) || (strcmp (argv[Index], "-p") == 0)) {
+
+ if (!Pad_Flag) {
+
+ Padding = (UINT8) atoi (argv[Index + 1]);
+ Pad_Flag = TRUE;
+
+ } else {
+ printf ("GenDepex only allows one PADDING (-P) argument\n");
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ }
+
+ PrintGenDepexUtilityInfo ();
+
+ if (InFile == NULL) {
+ printf ("Can not open <INFILE> for reading.\n");
+ PrintGenDepexUsageInfo ();
+ return EFI_ABORTED;
+ }
+
+ if (OutFile == NULL) {
+ printf ("Can not open <OUTFILE> for writting.\n");
+ PrintGenDepexUsageInfo ();
+ return EFI_ABORTED;
+ }
+
+ return GenerateDependencyExpression (InFile, OutFile, Padding);
+}
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