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-rw-r--r--gas/config/ho-vms.h2
-rw-r--r--gas/config/obj-vms.c307
2 files changed, 222 insertions, 87 deletions
diff --git a/gas/config/ho-vms.h b/gas/config/ho-vms.h
index 63f448e..ec7dc9e 100644
--- a/gas/config/ho-vms.h
+++ b/gas/config/ho-vms.h
@@ -17,7 +17,7 @@
along with GAS; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-#define HO_VAX 1
+#define HO_VMS 1
#include "ho-vax.h"
diff --git a/gas/config/obj-vms.c b/gas/config/obj-vms.c
index af88458..83abd77 100644
--- a/gas/config/obj-vms.c
+++ b/gas/config/obj-vms.c
@@ -100,7 +100,7 @@ static struct input_file *find_file PARAMS ((symbolS *));
enum advanced_type
{
- BASIC, POINTER, ARRAY, ENUM, STRUCT, UNION, FUNCTION, VOID, UNKNOWN
+ BASIC, POINTER, ARRAY, ENUM, STRUCT, UNION, FUNCTION, VOID, ALIAS, UNKNOWN
};
/*
@@ -167,6 +167,12 @@ static char *symbol_name;
static structure_count = 0;
+/* This variable is used to indicate that we are making the last attempt to
+ parse the stabs, and that we should define as much as we can, and ignore
+ the rest */
+
+static int final_pass;
+
/* This variable is used to keep track of the current structure number
* for a given variable. If this is < 0, that means that the structure
* has not yet been defined to the debugger. This is still cool, since
@@ -223,6 +229,16 @@ static int Object_Record_Offset;/* Offset to end of data */
static int Current_Object_Record_Type; /* Type of record in above */
/*
+ * Macros for moving data around. Must work on big-endian systems.
+ */
+#ifdef HO_VMS /* These are more efficient for VMS->VMS systems */
+#define COPY_LONG(dest,val) {*(long *) dest = val; }
+#define COPY_SHORT(dest,val) {*(short *) dest = val; }
+#else
+#define COPY_LONG(dest,val) { md_number_to_chars(dest, val, 4); }
+#define COPY_SHORT(dest,val) { md_number_to_chars(dest, val, 2); }
+#endif
+/*
* Macros for placing data into the object record buffer
*/
@@ -335,6 +351,10 @@ static void
obj_aout_stab (what)
int what;
{
+#ifndef NO_LISTING
+ extern int listing;
+#endif /* NO_LISTING */
+
register symbolS *symbolP = 0;
register char *string;
int saved_type = 0;
@@ -437,6 +457,22 @@ obj_aout_stab (what)
symbolP->sy_symbol.n_type = saved_type;
}
+#ifndef NO_LISTING
+ if (listing && !goof)
+ {
+ if (symbolP->sy_symbol.n_type == N_SLINE)
+ {
+
+ listing_source_line(symbolP->sy_symbol.n_desc);
+ }
+ else if (symbolP->sy_symbol.n_type == N_SO
+ || symbolP->sy_symbol.n_type == N_SOL)
+ {
+ listing_source_file(string);
+ }
+ }
+#endif
+
if (goof)
ignore_rest_of_line ();
else
@@ -568,6 +604,7 @@ Flush_VMS_Object_Record_Buffer ()
{
int i;
short int zero;
+ int RecLen;
/*
* If the buffer is empty, we are done
*/
@@ -577,7 +614,8 @@ Flush_VMS_Object_Record_Buffer ()
* Write the data to the file
*/
#ifndef HO_VMS /* For cross-assembly purposes. */
- i = write (VMS_Object_File_FD, &Object_Record_Offset, 2);
+ md_number_to_chars((char *) &RecLen, Object_Record_Offset, 2);
+ i = write (VMS_Object_File_FD, &RecLen, 2);
#endif /* not HO_VMS */
i = write (VMS_Object_File_FD,
Object_Record_Buffer,
@@ -766,8 +804,7 @@ VMS_Set_Data (Psect_Index, Offset, Record_Type, Force)
* Make a debugger reference to a struct, union or enum.
*/
static
-VMS_Store_Struct (Struct_Index)
- int Struct_Index;
+VMS_Store_Struct (int Struct_Index)
{
/*
* We are writing a "OBJ_S_C_DBG" record
@@ -794,8 +831,7 @@ VMS_Store_Struct (Struct_Index)
* Make a debugger reference to partially define a struct, union or enum.
*/
static
-VMS_Def_Struct (Struct_Index)
- int Struct_Index;
+VMS_Def_Struct (int Struct_Index)
{
/*
* We are writing a "OBJ_S_C_DBG" record
@@ -818,8 +854,7 @@ VMS_Def_Struct (Struct_Index)
}
static
-VMS_Set_Struct (Struct_Index)
- int Struct_Index;
+VMS_Set_Struct (int Struct_Index)
{ /* see previous functions for comments */
Set_VMS_Object_File_Record (OBJ_S_C_DBG);
if (Object_Record_Offset == 0)
@@ -887,7 +922,7 @@ VMS_TBT_Module_Begin ()
/*
* Language type == "C"
*/
- *(long *) cp = DST_S_C_C;
+ COPY_LONG (cp, DST_S_C_C);
cp += sizeof (long);
/*
* Store the module name
@@ -1054,7 +1089,7 @@ VMS_TBT_Routine_End (Max_Size, sp)
/*
* Size of routine
*/
- *((long *) (Local + 3)) = Size;
+ COPY_LONG (&Local[3], Size);
/*
* Store the record
*/
@@ -1130,8 +1165,7 @@ VMS_TBT_Block_Begin (symbolP, Psect, Name)
* Write the Traceback Block End record
*/
static
-VMS_TBT_Block_End (Size)
- int Size;
+VMS_TBT_Block_End (int Size)
{
char Local[16];
@@ -1140,7 +1174,7 @@ VMS_TBT_Block_End (Size)
*/
Local[0] = 6;
Local[1] = DST_S_C_BLKEND;
- *((long *) (Local + 3)) = Size;
+ COPY_LONG (&Local[3], Size);
/*
* Unused
*/
@@ -1180,7 +1214,7 @@ VMS_TBT_Line_PC_Correlation (Line_Number, Offset, Psect, Do_Delta)
* Set Line number
*/
Local[2] = DST_S_C_SET_LINE_NUM;
- *((unsigned short *) (Local + 3)) = Line_Number - 1;
+ COPY_SHORT (&Local[3], Line_Number - 1);
/*
* Set PC
*/
@@ -1221,7 +1255,7 @@ VMS_TBT_Line_PC_Correlation (Line_Number, Offset, Psect, Do_Delta)
Local[0] = 1 + 1 + 4;
Local[1] = DST_S_C_LINE_NUM;
Local[2] = DST_S_C_TERM_L;
- *((long *) (Local + 3)) = Offset;
+ COPY_LONG (&Local[3], Offset);
VMS_Store_Immediate_Data (Local, 7, OBJ_S_C_TBT);
/*
* Done
@@ -1246,7 +1280,7 @@ VMS_TBT_Line_PC_Correlation (Line_Number, Offset, Psect, Do_Delta)
else
{
*cp++ = DST_S_C_INCR_LINUM_W;
- *(short *) cp = Line_Number - 1;
+ COPY_SHORT (cp, Line_Number - 1);
cp += sizeof (short);
}
}
@@ -1262,13 +1296,13 @@ VMS_TBT_Line_PC_Correlation (Line_Number, Offset, Psect, Do_Delta)
if (Offset < 0x10000)
{
*cp++ = DST_S_C_DELTA_PC_W;
- *(short *) cp = Offset;
+ COPY_SHORT (cp, Offset);
cp += sizeof (short);
}
else
{
*cp++ = DST_S_C_DELTA_PC_L;
- *(long *) cp = Offset;
+ COPY_LONG (cp, Offset);
cp += sizeof (long);
}
}
@@ -1366,7 +1400,7 @@ VMS_TBT_Source_File (Filename, ID_Number)
/*
* File ID
*/
- *(short *) cp = ID_Number;
+ COPY_SHORT (cp, ID_Number);
cp += sizeof (short);
#ifndef HO_VMS
/*
@@ -1465,19 +1499,19 @@ VMS_TBT_Source_Lines (ID_Number, Starting_Line_Number, Number_Of_Lines)
/*
* File ID Number
*/
- *(short *) cp = ID_Number;
+ COPY_SHORT (cp, ID_Number);
cp += sizeof (short);
/*
* Set record number
*/
*cp++ = DST_S_C_SRC_SETREC_L;
- *(long *) cp = Starting_Line_Number;
+ COPY_LONG (cp, Starting_Line_Number);
cp += sizeof (long);
/*
* Define lines
*/
*cp++ = DST_S_C_SRC_DEFLINES_W;
- *(short *) cp = Number_Of_Lines;
+ COPY_SHORT (cp, Number_Of_Lines);
cp += sizeof (short);
/*
* Done
@@ -1656,6 +1690,8 @@ find_symbol (dbx_type)
};
if (spnt == (struct VMS_DBG_Symbol *) NULL)
return 0; /*Dunno what this is*/
+ if(spnt->advanced == ALIAS)
+ return find_symbol(spnt->type2);
return spnt;
}
@@ -1669,38 +1705,32 @@ static
push (value, size)
int value, size;
{
- char *pnt;
int i;
int size1;
- long int val;
- val = value;
- pnt = (char *) &val;
size1 = size;
if (size < 0)
{
size1 = -size;
- pnt += size1 - 1;
- };
- if (size < 0)
- for (i = 0; i < size1; i++)
- {
- Local[Lpnt--] = *pnt--;
- if (Lpnt < 0)
- {
- overflow = 1;
- Lpnt = 1;
- };
- }
+ if (Lpnt < size1)
+ {
+ overflow = 1;
+ Lpnt = 1;
+ return;
+ };
+ Lpnt -= size1;
+ md_number_to_chars (&Local[Lpnt + 1], value, size1);
+ }
else
- for (i = 0; i < size1; i++)
- {
- Asuffix[Apoint++] = *pnt++;
- if (Apoint >= MAX_DEBUG_RECORD)
- {
- overflow = 1;
- Apoint = MAX_DEBUG_RECORD - 1;
- };
- }
+ {
+ if (Apoint + size1 >= MAX_DEBUG_RECORD)
+ {
+ overflow = 1;
+ Apoint = MAX_DEBUG_RECORD - 1;
+ return;
+ };
+ md_number_to_chars (&Asuffix[Apoint], value, size1);
+ Apoint += size1;
+ };
}
/* this routine generates the array descriptor for a given array */
@@ -1891,7 +1921,7 @@ generate_suffix (spnt, dbx_type)
{
int ilen;
int i;
- static CONST char pvoid[6] = {5, 0xaf, 0, 1, 0, 5};
+ CONST char pvoid[6] = {5, 0xaf, 0, 1, 0, 5};
struct VMS_DBG_Symbol *spnt1;
Apoint = 0;
Lpnt = MAX_DEBUG_RECORD - 1;
@@ -1979,9 +2009,8 @@ VMS_DBG_record (spnt, Psect, Offset, Name)
Local[i++] = DBG_S_C_FUNCTION_PARAMETER;
else
Local[i++] = DBG_S_C_LOCAL_SYM;
- pnt = (char *) &Offset;
- for (j = 0; j < 4; j++)
- Local[i++] = *pnt++; /* copy the offset */
+ COPY_LONG (&Local[i], Offset);
+ i += 4;
}
else
{
@@ -2349,9 +2378,8 @@ forward_reference (pnt)
pnt = (char *) strchr (pnt, ':');
pnt = cvt_integer (pnt + 1, &i);
spnt = find_symbol (i);
- if (spnt == (struct VMS_DBG_Symbol *) NULL)
- return 0;
- while ((spnt->advanced == POINTER) || (spnt->advanced == ARRAY))
+ if(spnt != (struct VMS_DBG_Symbol*) NULL) {
+ while((spnt->advanced == POINTER) || (spnt->advanced == ARRAY))
{
i = spnt->type2;
spnt1 = find_symbol (spnt->type2);
@@ -2362,12 +2390,32 @@ forward_reference (pnt)
break;
spnt = spnt1;
};
+ };
pnt = cvt_integer (pnt + 1, &i);
pnt = cvt_integer (pnt + 1, &i);
} while (*++pnt != ';');
return 0; /* no forward refences found */
}
+/* Used to check a single element of a structure on the final pass*/
+
+static int
+final_forward_reference (spnt)
+ struct VMS_DBG_Symbol * spnt;
+{
+ struct VMS_DBG_Symbol * spnt1;
+ if(spnt != (struct VMS_DBG_Symbol*) NULL) {
+ while((spnt->advanced == POINTER) || (spnt->advanced == ARRAY)){
+ spnt1 = find_symbol(spnt->type2);
+ if((spnt->advanced == ARRAY) &&
+ (spnt1 == (struct VMS_DBG_Symbol*) NULL))return 1;
+ if(spnt1 == (struct VMS_DBG_Symbol*) NULL) break;
+ spnt=spnt1;
+ };
+ };
+ return 0; /* no forward refences found */
+}
+
/* This routine parses the stabs directives to find any definitions of dbx type
* numbers. It makes a note of all of them, creating a structure element
* of VMS_DBG_Symbol that describes it. This also generates the info for the
@@ -2379,6 +2427,10 @@ forward_reference (pnt)
* a structure/enum/union) and this is why we process them immediately.
* After we process the pointer, then we search for defs that are nested even
* deeper.
+ * 8/15/92: We have to process arrays right away too, because there can
+ * be multiple references to identical array types in one structure
+ * definition, and only the first one has the definition. (We tend to
+ * parse from the back going forward.
*/
static int
VMS_typedef_parse (str)
@@ -2396,7 +2448,8 @@ VMS_typedef_parse (str)
struct VMS_DBG_Symbol *spnt1;
/* check for any nested def's */
pnt = (char *) strchr (str + 1, '=');
- if ((pnt != (char *) NULL) && (*(str + 1) != '*'))
+ if ((pnt != (char *) NULL) && (*(str + 1) != '*')
+ && (str[1] != 'a' || str[2] != 'r'))
if (VMS_typedef_parse (pnt) == 1)
return 1;
/* now find dbx_type of entry */
@@ -2450,6 +2503,14 @@ VMS_typedef_parse (str)
spnt->advanced = UNKNOWN;
return 0;
};
+ pnt1 = cvt_integer(pnt,&i1);
+ if(i1 != spnt->dbx_type)
+ {
+ spnt->advanced = ALIAS;
+ spnt->type2 = i1;
+ strcpy(str, pnt1);
+ return 0;
+ }
printf ("gcc-as warning(debugger output):");
printf (" %d is an unknown untyped variable.\n", spnt->dbx_type);
return 1; /* do not know what this is */
@@ -2525,7 +2586,7 @@ VMS_typedef_parse (str)
spnt->advanced = UNION;
spnt->VMS_type = DBG_S_C_ADVANCED_TYPE;
pnt1 = cvt_integer (pnt + 1, &spnt->data_size);
- if (forward_reference (pnt))
+ if (!final_pass && forward_reference(pnt))
{
spnt->struc_numb = -1;
return 1;
@@ -2557,9 +2618,8 @@ VMS_typedef_parse (str)
while (*pnt2 != '\0')
Local[i++] = *pnt2++;
i2 = spnt->data_size * 8; /* number of bits */
- pnt2 = (char *) &i2;
- for (i1 = 0; i1 < 4; i1++)
- Local[i++] = *pnt2++;
+ COPY_LONG(&Local[i], i2);
+ i += 4;
VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG);
i = 0;
if (pnt != symbol_name)
@@ -2596,14 +2656,20 @@ VMS_typedef_parse (str)
Local[i++] = 7 + strlen (pnt2);
spnt1 = find_symbol (dtype);
/* check if this is a forward reference */
+ if(final_pass && final_forward_reference(spnt1))
+ {
+ printf("gcc-as warning(debugger output):");
+ printf("structure element %s has undefined type\n",pnt2);
+ i--;
+ continue;
+ }
if (spnt1 != (struct VMS_DBG_Symbol *) NULL)
Local[i++] = spnt1->VMS_type;
else
Local[i++] = DBG_S_C_ADVANCED_TYPE;
Local[i++] = DBG_S_C_STRUCT_ITEM;
- pnt = (char *) &i2;
- for (i1 = 0; i1 < 4; i1++)
- Local[i++] = *pnt++;
+ COPY_LONG (&Local[i], i2);
+ i += 4;
Local[i++] = strlen (pnt2);
while (*pnt2 != '\0')
Local[i++] = *pnt2++;
@@ -2657,9 +2723,8 @@ VMS_typedef_parse (str)
Local[i++] = 7 + strlen (pnt);
Local[i++] = DBG_S_C_ENUM_ITEM;
Local[i++] = 0x00;
- pnt2 = (char *) &i1;
- for (i2 = 0; i2 < 4; i2++)
- Local[i++] = *pnt2++;
+ COPY_LONG (&Local[i], i1);
+ i += 4;
Local[i++] = strlen (pnt);
pnt2 = pnt;
while (*pnt != '\0')
@@ -2683,6 +2748,9 @@ VMS_typedef_parse (str)
pnt1 = cvt_integer (pnt + 1, &spnt->index_min);
pnt1 = cvt_integer (pnt1 + 1, &spnt->index_max);
pnt1 = cvt_integer (pnt1 + 1, &spnt->type2);
+ pnt=(char*)strchr(str+1,'=');
+ if((pnt != (char*) NULL))
+ if(VMS_typedef_parse(pnt) == 1 ) return 1;
break;
case 'f':
spnt->advanced = FUNCTION;
@@ -2724,6 +2792,10 @@ parsing do not have to worry about it */
* We need to be careful, since sometimes there are forward references to
* other symbol types, and these cannot be resolved until we have completed
* the parse.
+ *
+ * Also check and see if we are using continuation stabs, if we are, then
+ * paste together the entire contents of the stab before we pass it to
+ * VMS_typedef_parse.
*/
static int
VMS_LSYM_Parse ()
@@ -2732,6 +2804,7 @@ VMS_LSYM_Parse ()
char *pnt1;
char *pnt2;
char *str;
+ char *parse_buffer = 0;
char fixit[10];
int incomplete, i, pass, incom1;
struct VMS_DBG_Symbol *spnt;
@@ -2739,6 +2812,7 @@ VMS_LSYM_Parse ()
struct forward_ref *fpnt;
symbolS *sp;
pass = 0;
+ final_pass = 0;
incomplete = 0;
do
{
@@ -2765,24 +2839,65 @@ VMS_LSYM_Parse ()
case N_FUN: /*sometimes these contain typedefs*/
str = S_GET_NAME (sp);
symbol_name = str;
+ pnt = str + strlen(str) -1;
+ if (*pnt == '?') /* Continuation stab. */
+ {
+ symbolS *spnext;
+ int tlen = 0;
+ spnext = sp;
+ do {
+ tlen += strlen(str) - 1;
+ spnext = symbol_next (spnext);
+ str = S_GET_NAME (spnext);
+ pnt = str + strlen(str) - 1;
+ } while (*pnt == '?');
+ tlen += strlen(str);
+ parse_buffer = (char *) malloc (tlen + 1);
+ strcpy(parse_buffer, S_GET_NAME (sp));
+ pnt2 = parse_buffer + strlen(S_GET_NAME (sp)) - 1;
+ *pnt2 = '\0';
+ spnext = sp;
+ do {
+ spnext = symbol_next (spnext);
+ str = S_GET_NAME (spnext);
+ strcat (pnt2, S_GET_NAME (spnext));
+ pnt2 += strlen(str) - 1;
+ *str = '\0'; /* Erase this string */
+ if (*pnt2 != '?') break;
+ *pnt2 = '\0';
+ } while (1 == 1);
+ str = parse_buffer;
+ symbol_name = str;
+ };
pnt = (char *) strchr (str, ':');
- if (pnt == (char *) NULL)
- break;
- *pnt = '\0';
- pnt1 = pnt + 1;
- pnt2 = (char *) strchr (pnt1, '=');
- if (pnt2 == (char *) NULL)
+ if (pnt != (char *) NULL)
{
- *pnt = ':'; /* replace colon */
- break;
- }; /* no symbol here */
- incomplete += VMS_typedef_parse (pnt2);
- *pnt = ':'; /* put back colon so variable def code finds dbx_type*/
+ *pnt = '\0';
+ pnt1 = pnt + 1;
+ pnt2 = (char *) strchr (pnt1, '=');
+ if (pnt2 != (char *) NULL)
+ incomplete += VMS_typedef_parse (pnt2);
+ if (parse_buffer){
+ /* At this point the parse buffer should just contain name:nn.
+ If it does not, then we are in real trouble. Anyway,
+ this is always shorter than the original line. */
+ strcpy(S_GET_NAME (sp), parse_buffer);
+ free (parse_buffer);
+ parse_buffer = 0;
+ };
+ *pnt = ':'; /* put back colon so variable def code finds dbx_type*/
+ };
break;
} /*switch*/
} /* if */
} /*for*/
pass++;
+/* Make one last pass, if needed, and define whatever we can that is left */
+ if(final_pass == 0 && incomplete == incom1)
+ {
+ final_pass = 1;
+ incom1 ++; /* Force one last pass through */
+ };
} while ((incomplete != 0) && (incomplete != incom1));
/* repeat until all refs resolved if possible */
/* if (pass > 1) printf(" Required %d passes\n",pass);*/
@@ -2931,8 +3046,7 @@ VMS_DBG_Define_Routine (symbolP, Curr_Routine, Txt_Psect)
#include <time.h>
/* Manufacure a VMS like time on a unix based system. */
-get_VMS_time_on_unix (Now)
- char *Now;
+get_VMS_time_on_unix (char *Now)
{
char *pnt;
time_t timeb;
@@ -3058,7 +3172,7 @@ Write_VMS_MHD_Records ()
cp = "GNU AS V";
while (*cp)
PUT_CHAR (*cp++);
- cp = strchr (version_string, '.');
+ cp = strchr (&version_string, '.');
while (*cp != ' ')
cp--;
cp++;
@@ -3631,9 +3745,8 @@ VMS_Psect_Spec (Name, Size, Type, vsp)
default:
{
char Error_Line[256];
- sprintf (Error_Line,
- "Globalsymbol attribute for symbol %s was unexpected.\n",
- Name);
+ sprintf (Error_Line, "Globalsymbol attribute for"
+ " symbol %s was unexpected.\n", Name);
error (Error_Line);
break;
};
@@ -3803,10 +3916,8 @@ VMS_Emit_Globalvalues (text_siz, data_siz, Data_Segment)
Size = VMS_Initialized_Data_Size (sp, text_siz + data_siz);
if (Size > 4)
error ("Invalid data type for globalvalue");
- globalvalue = 0;
-
- memcpy (&globalvalue, Data_Segment + S_GET_VALUE (sp) -
- text_siz, Size);
+ globalvalue = md_chars_to_number (Data_Segment +
+ S_GET_VALUE (sp) - text_siz , Size);
/* Three times for good luck. The linker seems to get confused
if there are fewer than three */
VMS_Global_Symbol_Spec (stripped_name, 0, 0, 2);
@@ -4664,6 +4775,18 @@ VMS_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
vsp);
if (Globalref)
Psect_Number--;
+
+/* See if this is an external vtable. We want to help the linker find
+ these things in libraries, so we make a symbol reference. This
+ is not compatible with VAX-C usage for variables, but since vtables are
+ only used internally by g++, we can get away with this hack. */
+
+ if(strncmp (S_GET_NAME (sp), "__vt.", 5) == 0)
+ VMS_Global_Symbol_Spec (S_GET_NAME(sp),
+ vsp->Psect_Index,
+ 0,
+ 0);
+
#ifdef NOT_VAX_11_C_COMPATIBLE
/*
* Place a global symbol at the
@@ -4728,6 +4851,18 @@ VMS_write_object_file (text_siz, data_siz, bss_siz, text_frag_root,
vsp);
if (Globalref)
Psect_Number--;
+
+/* See if this is an external vtable. We want to help the linker find
+ these things in libraries, so we make a symbol definition. This
+ is not compatible with VAX-C usage for variables, but since vtables are
+ only used internally by g++, we can get away with this hack. */
+
+ if(strncmp (S_GET_NAME (sp), "__vt.", 5) == 0)
+ VMS_Global_Symbol_Spec (S_GET_NAME (sp),
+ vsp->Psect_Index,
+ 0,
+ 1);
+
#ifdef NOT_VAX_11_C_COMPATIBLE
/*
* Place a global symbol at the
generated by cgit v1.1 at 2024-12-04 03:29:53 +0000