1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/****************************************************************
* *
* Copyright 2001, 2009 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include "gtm_string.h"
#include "error.h"
#include <rtnhdr.h>
#include "op.h"
#include "i386.h"
#include "inst_flush.h"
#include "dm_setup.h"
#include "gtm_text_alloc.h"
#define CALL_SIZE 5
#define CODE_SIZE 3*CALL_SIZE
#define CODE_LINES 3
rhdtyp *make_dmode(void)
{
rhdtyp *base_address;
lab_tabent *lbl;
int *lnr;
unsigned char *code;
/* dummy code + label entry + line entries */
base_address = (rhdtyp *)GTM_TEXT_ALLOC(SIZEOF(rhdtyp) + CODE_SIZE + SIZEOF(lab_tabent) + CODE_LINES * SIZEOF(int4));
memset(base_address,0,SIZEOF(rhdtyp) + CODE_SIZE + SIZEOF(lab_tabent) + CODE_LINES*SIZEOF(int4));
base_address->routine_name.len = STR_LIT_LEN(GTM_DMOD);
base_address->routine_name.addr = GTM_DMOD;
base_address->ptext_ptr = SIZEOF(rhdtyp);
base_address->vartab_ptr =
base_address->labtab_ptr = SIZEOF(rhdtyp) + CODE_SIZE; /* hdr + code */
base_address->lnrtab_ptr = SIZEOF(rhdtyp) + CODE_SIZE + SIZEOF(lab_tabent);
base_address->labtab_len = 1;
base_address->lnrtab_len = CODE_LINES;
code = (unsigned char *) base_address + base_address->ptext_ptr;
*code++ = I386_INS_CALL_Jv;
*((int4 *)code) = (int4)((unsigned char *)dm_setup - (code + SIZEOF(int4)));
code += SIZEOF(int4);
*code++ = I386_INS_CALL_Jv; /* this should be a CALL to maintain uniformity between transfer to mum_tstart from baseframe
and transfers to mum_tstart from error processing (MUM_TSTART marco in
mdb_condition_handler) */
*((int4 *)code) = (int4)((unsigned char *)mum_tstart - (code + SIZEOF(int4)));
code += SIZEOF(int4);
*code++ = I386_INS_JMP_Jv;
*((int4 *)code) = (int4)((unsigned char *)opp_ret - (code + SIZEOF(int4)));
code += SIZEOF(int4);
lbl = (lab_tabent *)((int) base_address + base_address->labtab_ptr);
lbl->lab_ln_ptr = base_address->lnrtab_ptr;
lnr = (int *)((int)base_address + base_address->lnrtab_ptr);
*lnr++ = base_address->ptext_ptr;
*lnr++ = base_address->ptext_ptr;
*lnr++ = base_address->ptext_ptr + 2 * CALL_SIZE;
assert(code - ((unsigned char *)base_address + base_address->ptext_ptr) == CODE_SIZE);
zlput_rname(base_address);
inst_flush(base_address, SIZEOF(rhdtyp) + CODE_SIZE + SIZEOF(lab_tabent) + CODE_LINES * SIZEOF(int4));
return base_address;
}
|
