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fixed my bug in ZwXXX stubs generation

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svn path=/trunk/; revision=557
This commit is contained in:
Emanuele Aliberti 1999-06-17 18:09:27 +00:00
parent 1e589af8e1
commit 3d0fe049f6
1 changed files with 48 additions and 33 deletions
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81
reactos/iface/native/genntdll.c
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@ -1,4 +1,4 @@
/* $Id: genntdll.c,v 1.6 1999/06/17 00:10:30 ea Exp $
/* $Id: genntdll.c,v 1.7 1999/06/17 18:09:27 ea Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS version of ntdll
@ -9,6 +9,8 @@
* Four arguments now required; 4th is the file
* for ntoskrnl ZwXXX functions (which are merely calls
* to twin NtXXX calls, via int 0x2e (x86).
* 19990617 (ea)
* Fixed a bug in function numbers in kernel ZwXXX stubs.
*
*/
@ -18,13 +20,12 @@
#include <stdlib.h>
#include <string.h>
#define TRUE 1
#define FALSE 0
#define PARAMETERIZED_LIBS
#define VERBOSE
#define INPUT_BUFFER_SIZE 255
/* FUNCTIONS ****************************************************************/
int
@ -35,16 +36,14 @@ process(
FILE * out3
)
{
char line [255];
char line [INPUT_BUFFER_SIZE];
char * s;
char * name; /* NtXXX name */
char * name2; /* ZwXXX name */
int value;
int sys_call_idx; /* NtXXX index number in the service table */
char * nr_args; /* stack_size / machine_word_size */
char * stmp;
unsigned char first1 = TRUE;
/*
* NTDLL stubs file header
*/
@ -63,7 +62,6 @@ process(
*/
fprintf(out3,"// Machine generated, don't edit\n");
fprintf(out3,"\n\n");
/*
* Scan the database. DB is a text file; each line
* is a record, which contains data for one system
@ -74,28 +72,47 @@ process(
* STACK_SIZE (in machine words: for x[3456]86
* processors a machine word is 4 bytes)
*/
value = 0;
while (!feof(in) && fgets(line,255,in) != NULL)
for ( /* First system call has index zero */
sys_call_idx = 0;
/* Go on until EOF or read zero bytes */
( (!feof(in))
&& (fgets(line, sizeof line, in) != NULL)
);
/* Next system call index */
sys_call_idx++
)
{
//fgets(line,255,in);
if ((s=(char *)strchr(line,13))!=NULL)
/*
* Remove, if present, the trailing CR.
* (os specific?)
*/
if ((s = (char *) strchr(line,'\r')) != NULL)
{
*s=0;
*s = '\0';
}
/*
* Skip comments (#) and empty lines.
*/
s = & line[0];
if ((*s)!='#' && (*s) != 0)
if ((*s) != '#' && (*s) != '\0')
{
/* Extract the NtXXX name */
name = (char *)strtok(s," \t");
/* Extract the ZwXXX name */
name2 = (char *)strtok(NULL," \t");
//value = strtok(NULL," \t");
/* Extract the stack size */
nr_args = (char *)strtok(NULL," \t");
if ((stmp=strchr(nr_args,'\n'))!=NULL)
/*
* Remove, if present, the trailing LF.
*/
if ((stmp = strchr(nr_args, '\n')) != NULL)
{
*stmp=0;
*stmp = '\0';
}
#ifdef VERBOSE
printf("name = \"%s\" value = %d\n",name,value);
printf("name = \"%s\" value = %d\n",name,sys_call_idx);
#endif
/*
* Write the NTDLL stub for the current
@ -113,26 +130,24 @@ process(
fprintf(out,"\"_%s:\\n\\t\"\n",name);
fprintf(out,"\"_%s:\\n\\t\"\n",name2);
#endif
fprintf(out,"\t\"mov\t$%d,%%eax\\n\\t\"\n",value);
fprintf(out,"\t\"mov\t$%d,%%eax\\n\\t\"\n",sys_call_idx);
fprintf(out,"\t\"lea\t4(%%esp),%%edx\\n\\t\"\n");
fprintf(out,"\t\"int\t$0x2E\\n\\t\"\n");
fprintf(out,"\t\"ret\t$%s\\n\\t\");\n\n",nr_args);
/*
* Mark the end of the previous service
* table's element (C array syntax). When
* the current function is the n-th, we
* close the (n - 1)-th entry.
*/
if (sys_call_idx > 0)
{
fprintf(out2,",\n");
}
/*
* Now write the current system call's name
* in the service table.
*/
value++;
if (first1 == TRUE)
{
first1 = FALSE;
}
else
{
fprintf(out2,",\n");
}
fprintf(out2,"\t\t{ %s, (ULONG)%s }",nr_args,name);
/*
* Now write the NTOSKRNL stub for the
@ -142,13 +157,13 @@ process(
fprintf(out3,"__asm__(\n");
fprintf(out3,"\".global _%s@%s\\n\\t\"\n",name2,nr_args);
fprintf(out3,"\"_%s@%s:\\n\\t\"\n",name2,nr_args);
fprintf(out3,"\t\"mov\t$%d,%%eax\\n\\t\"\n",value);
fprintf(out3,"\t\"mov\t$%d,%%eax\\n\\t\"\n",sys_call_idx);
fprintf(out3,"\t\"lea\t4(%%esp),%%edx\\n\\t\"\n");
fprintf(out3,"\t\"int\t$0x2E\\n\\t\"\n");
fprintf(out3,"\t\"ret\t$%s\\n\\t\");\n\n",nr_args);
}
}
/* Close the service table (C syntax) */
fprintf(out2,"\n};\n");
return(0);