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more vms updates from Pat Rankin

This commit is contained in:
Ken Raeburn 1995-05-20 20:11:38 +00:00
parent a088fb62b3
commit 0509f0643c
3 changed files with 118 additions and 70 deletions
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10
gas/ChangeLog
View File

@ -1,6 +1,14 @@
Sat May 20 12:31:36 1995 Ken Raeburn <raeburn@kr-laptop.cygnus.com>
* Added improved VMS support from Pat Rankin:
Added improved VMS support from Pat Rankin:
Fri 19 May 16:51:40 1995 Pat Rankin (rankin@eql.caltech.edu)
* config/obj-vms.h (AOUT_STABS): Define.
* config/obj-vms.c (fpush, rpush): New routines.
(push): Replaced by the above.
(find_symbol): Slight reorganization to expose tail recursion.
Fri Mar 17 18:40:36 1995 Pat Rankin (rankin@eql.caltech.edu)

172
gas/config/obj-vms.c
View File

@ -1609,6 +1609,7 @@ find_symbol (dbx_type)
int dbx_type;
{
struct VMS_DBG_Symbol *spnt;
spnt = VMS_Symbol_type_list[SYMTYP_HASH(dbx_type)];
while (spnt != (struct VMS_DBG_Symbol *) NULL)
{
@ -1616,14 +1617,13 @@ find_symbol (dbx_type)
break;
spnt = spnt->next;
}
if (spnt == (struct VMS_DBG_Symbol *) NULL)
return 0; /*Dunno what this is*/
if(spnt->advanced == ALIAS)
return find_symbol(spnt->type2);
return spnt;
if (!spnt || spnt->advanced != ALIAS)
return spnt;
return find_symbol(spnt->type2);
}
#if 0 /* obsolete */
/* this routine puts info into either Local or Asuffix, depending on the sign
* of size. The reason is that it is easier to build the variable descriptor
* backwards, while the array descriptor is best built forwards. In the end
@ -1657,6 +1657,46 @@ push (value, size1)
Apoint += size1;
}
}
#endif
static void
fpush (value, size)
int value, size;
{
if (Apoint + size >= MAX_DEBUG_RECORD)
{
overflow = 1;
Apoint = MAX_DEBUG_RECORD - 1;
return;
}
if (size == 1)
Asuffix[Apoint++] = (char) value;
else
{
md_number_to_chars (&Asuffix[Apoint], value, size);
Apoint += size;
}
}
static void
rpush (value, size)
int value, size;
{
if (Lpnt < size)
{
overflow = 1;
Lpnt = 1;
return;
}
if (size == 1)
Local[Lpnt--] = (char) value;
else
{
Lpnt -= size;
md_number_to_chars (&Local[Lpnt + 1], value, size);
}
}
/* this routine generates the array descriptor for a given array */
static void
@ -1685,30 +1725,30 @@ array_suffix (spnt2)
spnt1 = find_symbol (spnt1->type2);
}
total_size = total_size * spnt1->data_size;
push (spnt1->data_size, 2); /* element size */
fpush (spnt1->data_size, 2); /* element size */
if (spnt1->VMS_type == DBG_S_C_ADVANCED_TYPE)
push (0, 1);
fpush (0, 1);
else
push (spnt1->VMS_type, 1); /* element type */
push (DSC_K_CLASS_A, 1); /* descriptor class */
push (0, 4); /* base address */
push (0, 1); /* scale factor -- not applicable */
push (0, 1); /* digit count -- not applicable */
push (0xc0, 1); /* flags: multiplier block & bounds present */
push (rank, 1); /* number of dimensions */
push (total_size, 4);
push (0, 4); /* pointer to element [0][0]...[0] */
fpush (spnt1->VMS_type, 1); /* element type */
fpush (DSC_K_CLASS_A, 1); /* descriptor class */
fpush (0, 4); /* base address */
fpush (0, 1); /* scale factor -- not applicable */
fpush (0, 1); /* digit count -- not applicable */
fpush (0xc0, 1); /* flags: multiplier block & bounds present */
fpush (rank, 1); /* number of dimensions */
fpush (total_size, 4);
fpush (0, 4); /* pointer to element [0][0]...[0] */
spnt1 = spnt;
while (spnt1->advanced == ARRAY)
{
push (spnt1->index_max - spnt1->index_min + 1, 4);
fpush (spnt1->index_max - spnt1->index_min + 1, 4);
spnt1 = find_symbol (spnt1->type2);
}
spnt1 = spnt;
while (spnt1->advanced == ARRAY)
{
push (spnt1->index_min, 4);
push (spnt1->index_max, 4);
fpush (spnt1->index_min, 4);
fpush (spnt1->index_max, 4);
spnt1 = find_symbol (spnt1->type2);
}
}
@ -1729,9 +1769,9 @@ new_forward_ref (dbx_type)
fpnt->dbx_type = dbx_type;
fpnt->struc_numb = ++structure_count;
fpnt->resolved = 'N';
push (DST_K_TS_IND, -1); /* indirect type specification */
rpush (DST_K_TS_IND, 1); /* indirect type specification */
total_len = 5;
push (total_len, -2);
rpush (total_len, 2);
struct_number = -fpnt->struc_numb;
}
@ -1752,23 +1792,23 @@ gen1 (spnt, array_suffix_len)
switch (spnt->advanced)
{
case VOID:
push (DBG_S_C_VOID, -1);
rpush (DBG_S_C_VOID, 1);
total_len += 1;
push (total_len, -2);
rpush (total_len, 2);
return 0;
case BASIC:
case FUNCTION:
if (array_suffix_len == 0)
{
push (spnt->VMS_type, -1);
push (DBG_S_C_BASIC, -1);
rpush (spnt->VMS_type, 1);
rpush (DBG_S_C_BASIC, 1);
total_len = 2;
push (total_len, -2);
rpush (total_len, 2);
return 1;
}
push (0, -4);
push (DST_K_VFLAGS_DSC, -1);
push (DST_K_TS_DSC, -1); /* descriptor type specification */
rpush (0, 4);
rpush (DST_K_VFLAGS_DSC, 1);
rpush (DST_K_TS_DSC, 1); /* descriptor type specification */
total_len = -2;
return 1;
case STRUCT:
@ -1780,9 +1820,9 @@ gen1 (spnt, array_suffix_len)
new_forward_ref (spnt->dbx_type);
return 1;
}
push (DBG_S_C_STRUCT, -1);
rpush (DBG_S_C_STRUCT, 1);
total_len = 5;
push (total_len, -2);
rpush (total_len, 2);
return 1;
case POINTER:
spnt1 = find_symbol (spnt->type2);
@ -1793,9 +1833,9 @@ gen1 (spnt, array_suffix_len)
i = gen1 (spnt1, 0);
if (i)
{ /* (*void) is a special case, do not put pointer suffix*/
push (DBG_S_C_POINTER, -1);
rpush (DBG_S_C_POINTER, 1);
total_len += 3;
push (total_len, -2);
rpush (total_len, 2);
}
return 1;
case ARRAY:
@ -1822,16 +1862,16 @@ gen1 (spnt, array_suffix_len)
case FUNCTION:
break;
default:
push (0, -2);
rpush (0, 2);
total_len += 2;
push (total_len, -2);
push (DST_K_VFLAGS_DSC, -1);
push (1, -1); /* flags: element value spec included */
push (1, -1); /* one dimension */
push (DBG_S_C_COMPLEX_ARRAY, -1);
rpush (total_len, 2);
rpush (DST_K_VFLAGS_DSC, 1);
rpush (1, 1); /* flags: element value spec included */
rpush (1, 1); /* one dimension */
rpush (DBG_S_C_COMPLEX_ARRAY, 1);
}
total_len += array_suffix_len + 8;
push (total_len, -2);
rpush (total_len, 2);
break;
default: /* lint suppression */
break;
@ -1872,10 +1912,10 @@ generate_suffix (spnt, dbx_type)
return; /* no suffix needed */
gen1 (spnt, 0);
}
push (0, -1); /* no name (len==0) */
push (DST_K_TYPSPEC, -1);
rpush (0, 1); /* no name (len==0) */
rpush (DST_K_TYPSPEC, 1);
total_len += 4;
push (total_len, -1);
rpush (total_len, 1);
/* if the variable descriptor overflows the record, output a descriptor for
* a pointer to void.
*/
@ -2138,6 +2178,7 @@ VMS_stab_parse (sp, expected_type, type1, type2, Text_Psect)
struct VMS_DBG_Symbol *spnt;
struct VMS_Symbol *vsp;
int dbx_type;
dbx_type = 0;
str = S_GET_NAME (sp);
pnt = (char *) strchr (str, ':');
@ -2689,19 +2730,19 @@ VMS_typedef_parse (str)
|| spnt1->VMS_type == DBG_S_C_UQUAD
|| spnt1->advanced == ENUM); /* (approximate) */
Apoint = 0;
push (19 + len, 1);
push (unsigned_type ? DBG_S_C_UBITU : DBG_S_C_SBITU, 1);
push (DST_K_VFLAGS_DSC, 1); /* specified by descriptor */
push (1 + len, 4); /* relative offset to descriptor */
push (len, 1); /* length byte (ascic prefix) */
fpush (19 + len, 1);
fpush (unsigned_type ? DBG_S_C_UBITU : DBG_S_C_SBITU, 1);
fpush (DST_K_VFLAGS_DSC, 1); /* specified by descriptor */
fpush (1 + len, 4); /* relative offset to descriptor */
fpush (len, 1); /* length byte (ascic prefix) */
while (*pnt2 != '\0') /* name bytes */
push (*pnt2++, 1);
push (i3, 2); /* dsc length == size of bitfield */
fpush (*pnt2++, 1);
fpush (i3, 2); /* dsc length == size of bitfield */
/* dsc type == un?signed bitfield */
push (unsigned_type ? DBG_S_C_UBITU : DBG_S_C_SBITU, 1);
push (DSC_K_CLASS_UBS, 1); /* dsc class == unaligned bitstring */
push (0x00, 4); /* dsc pointer == zeroes */
push (i2, 4); /* start position */
fpush (unsigned_type ? DBG_S_C_UBITU : DBG_S_C_SBITU, 1);
fpush (DSC_K_CLASS_UBS, 1); /* dsc class == unaligned bitstring */
fpush (0x00, 4); /* dsc pointer == zeroes */
fpush (i2, 4); /* start position */
VMS_Store_Immediate_Data (Asuffix, Apoint, OBJ_S_C_DBG);
Apoint = 0;
}
@ -4710,8 +4751,7 @@ vms_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
/*
* Make a VMS data symbol entry
*/
vsp = (struct VMS_Symbol *)
xmalloc (sizeof (*vsp));
vsp = (struct VMS_Symbol *) xmalloc (sizeof (*vsp));
vsp->Symbol = sp;
vsp->Size = S_GET_VALUE (sp);
vsp->Psect_Index = Psect_Number++;
@ -4759,8 +4799,7 @@ vms_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
/*
* Make a VMS data symbol entry
*/
vsp = (struct VMS_Symbol *)
xmalloc (sizeof (*vsp));
vsp = (struct VMS_Symbol *) xmalloc (sizeof (*vsp));
vsp->Symbol = sp;
vsp->Size = 0;
vsp->Psect_Index = Bss_Psect;
@ -4776,11 +4815,9 @@ vms_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
/*
* Make a VMS data symbol entry
*/
vsp = (struct VMS_Symbol *)
xmalloc (sizeof (*vsp));
vsp = (struct VMS_Symbol *) xmalloc (sizeof (*vsp));
vsp->Symbol = sp;
vsp->Size = VMS_Initialized_Data_Size (sp,
text_siz + data_siz);
vsp->Size = VMS_Initialized_Data_Size (sp, text_siz + data_siz);
vsp->Psect_Index = Psect_Number++;
vsp->Psect_Offset = 0;
vsp->Next = VMS_Symbols;
@ -4825,8 +4862,7 @@ vms_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
/*
* Make a VMS data symbol entry
*/
vsp = (struct VMS_Symbol *)
xmalloc (sizeof (*vsp));
vsp = (struct VMS_Symbol *) xmalloc (sizeof (*vsp));
vsp->Symbol = sp;
vsp->Size = VMS_Initialized_Data_Size (sp, text_siz + data_siz);
vsp->Psect_Index = Data_Psect;
@ -4864,9 +4900,8 @@ vms_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
if (fragP->fr_fix < 2)
abort ();
Entry_Mask = (fragP->fr_literal[0] & 0xff) +
((fragP->fr_literal[1] & 0xff)
<< 8);
Entry_Mask = (fragP->fr_literal[0] & 0x00ff) |
((fragP->fr_literal[1] & 0x00ff) << 8);
/*
* Define the Procedure entry pt.
*/
@ -4885,8 +4920,7 @@ vms_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
*/
if (Text_Psect != -1)
{
vsp = (struct VMS_Symbol *)
xmalloc (sizeof (*vsp));
vsp = (struct VMS_Symbol *) xmalloc (sizeof (*vsp));
vsp->Symbol = sp;
vsp->Size = 0;
vsp->Psect_Index = Text_Psect;

6
gas/config/obj-vms.h
View File

@ -224,6 +224,12 @@ extern void vms_check_for_main PARAMS ((void));
extern void vms_write_object_file PARAMS ((unsigned,unsigned,unsigned,
struct frag *,struct frag *));
/* VMS executables are nothing like a.out, but the VMS port of gcc uses
a.out format stabs which obj-vms.c then translates. */
#define AOUT_STABS
/* The rest of this file contains definitions for constants used within the actual
VMS object file. We do not use a $ in the symbols (as per usual VMS