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more vms updates from Pat Rankin

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