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authorK. Richard Pixley <rich@cygnus>1992-01-28 20:38:08 +0000
committerK. Richard Pixley <rich@cygnus>1992-01-28 20:38:08 +0000
commit584a0f78d9758e9cd9481ea9ca82307e06c89d9b (patch)
tree055081a9e9d434e150a7721e068c68da41a9139e /gas/config/tc-sparc.c
parent3bdb6bf8c47fb74c1b483bde63313fdadb998bd7 (diff)
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rcsid's removed
Diffstat (limited to 'gas/config/tc-sparc.c')
-rw-r--r--gas/config/tc-sparc.c166
1 files changed, 121 insertions, 45 deletions
diff --git a/gas/config/tc-sparc.c b/gas/config/tc-sparc.c
index 7593513..df18f15 100644
--- a/gas/config/tc-sparc.c
+++ b/gas/config/tc-sparc.c
@@ -17,15 +17,13 @@
along with GAS; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* static const char rcsid[] = "$Id$"; */
-
#include <stdio.h>
#include <ctype.h>
#include "as.h"
/* careful, this file includes data *declarations* */
-#include "sparc-opcode.h"
+#include "opcode/sparc.h"
void md_begin();
void md_end();
@@ -137,10 +135,14 @@ static int special_case;
* sort of like s_lcomm
*
*/
+static int max_alignment = 15;
+
static void s_reserve() {
char *name;
- char c;
char *p;
+ char c;
+ int align;
+ int size;
int temp;
symbolS *symbolP;
@@ -149,38 +151,87 @@ static void s_reserve() {
p = input_line_pointer;
*p = c;
SKIP_WHITESPACE();
- if (* input_line_pointer != ',') {
+
+ if (*input_line_pointer != ',') {
as_bad("Expected comma after name");
ignore_rest_of_line();
return;
}
- input_line_pointer ++;
- if ((temp = get_absolute_expression()) < 0) {
- as_bad("BSS length (%d.) <0! Ignored.", temp);
+
+ ++input_line_pointer;
+
+ if ((size = get_absolute_expression()) < 0) {
+ as_bad("BSS length (%d.) <0! Ignored.", size);
ignore_rest_of_line();
return;
- }
+ } /* bad length */
+
*p = 0;
symbolP = symbol_find_or_make(name);
*p = c;
+
if (strncmp(input_line_pointer, ",\"bss\"", 6) != 0) {
as_bad("bad .reserve segment: `%s'", input_line_pointer);
return;
- }
+ } /* if not bss */
+
input_line_pointer += 6;
+ SKIP_WHITESPACE();
+
+ if (*input_line_pointer == ',') {
+ ++input_line_pointer;
+
+ SKIP_WHITESPACE();
+ if (*input_line_pointer == '\n') {
+ as_bad("Missing alignment");
+ return;
+ }
+
+ align = get_absolute_expression();
+ if (align > max_alignment){
+ align = max_alignment;
+ as_warn("Alignment too large: %d. assumed.", align);
+ } else if (align < 0) {
+ align = 0;
+ as_warn("Alignment negative. 0 assumed.");
+ }
+#ifdef MANY_SEGMENTS
+#define SEG_BSS SEG_E2
+ record_alignment(SEG_E2, align);
+#else
+ record_alignment(SEG_BSS, align);
+#endif
+
+ /* convert to a power of 2 alignment */
+ for (temp = 0; (align & 1) == 0; align >>= 1, ++temp) ;;
+
+ if (align != 1) {
+ as_bad("Alignment not a power of 2");
+ ignore_rest_of_line();
+ return;
+ } /* not a power of two */
+
+ align = temp;
+
+ /* Align */
+ align = ~((~0) << align); /* Convert to a mask */
+ local_bss_counter = (local_bss_counter + align) & (~align);
+ } /* if has optional alignment */
+
if (S_GET_OTHER(symbolP) == 0
&& S_GET_DESC(symbolP) == 0
- && ((S_GET_TYPE(symbolP) == N_BSS
+ && ((S_GET_SEGMENT(symbolP) == SEG_BSS
&& S_GET_VALUE(symbolP) == local_bss_counter)
|| !S_IS_DEFINED(symbolP))) {
S_SET_VALUE(symbolP, local_bss_counter);
S_SET_SEGMENT(symbolP, SEG_BSS);
- symbolP->sy_frag = & bss_address_frag;
- local_bss_counter += temp;
+ symbolP->sy_frag = &bss_address_frag;
+ local_bss_counter += size;
} else {
as_warn("Ignoring attempt to re-define symbol from %d. to %d.",
S_GET_VALUE(symbolP), local_bss_counter);
- }
+ } /* if not redefining */
+
demand_empty_rest_of_line();
return;
} /* s_reserve() */
@@ -876,9 +927,9 @@ char *str;
if (mask >= 32) {
mask -= 31;
} /* wrap high bit */
- } /* if not an 'f' register. */
#endif /* NO_V9 */
/* end-sanitize-v9 */
+ } /* if not an 'f' register. */
} /* on error */
switch (*args) {
@@ -937,6 +988,10 @@ char *str;
the_insn.pcrel = 1;
goto immediate;
+ case 'n': /* 22 bit immediate */
+ the_insn.reloc = RELOC_22;
+ goto immediate;
+
case 'i': /* 13 bit immediate */
the_insn.reloc = RELOC_BASE13;
@@ -984,23 +1039,22 @@ char *str;
char *s1;
- for(s1=s;*s1 && *s1!=','&& *s1!=']';s1++)
- ;
+ for (s1 = s; *s1 && *s1 != ',' && *s1 != ']'; s1++) ;;
- if(s1!=s && isdigit(s1[-1])) {
- if(s1[-2]=='%' && s1[-3]=='+') {
- s1-=3;
- *s1='\0';
- (void)getExpression(s);
- *s1='+';
- s=s1;
+ if (s1 != s && isdigit(s1[-1])) {
+ if(s1[-2] == '%' && s1[-3] == '+') {
+ s1 -= 3;
+ *s1 = '\0';
+ (void) getExpression(s);
+ *s1 = '+';
+ s = s1;
continue;
- } else if(strchr("goli0123456789",s1[-2]) && s1[-3]=='%' && s1[-4]=='+') {
- s1-=4;
- *s1='\0';
- (void)getExpression(s);
- *s1='+';
- s=s1;
+ } else if (strchr("goli0123456789", s1[-2]) && s1[-3] == '%' && s1[-4] == '+') {
+ s1 -= 4;
+ *s1 = '\0';
+ (void) getExpression(s);
+ *s1 = '+';
+ s = s1;
continue;
}
}
@@ -1016,21 +1070,22 @@ char *str;
}
break;
- case 'A': /* alternate space */
- if (isdigit(*s)) {
- long num;
-
- num=0;
- while (isdigit(*s)) {
- num= num*10 + *s-'0';
- ++s;
- }
- opcode |= num<<5;
+ case 'A': {
+ char *push = input_line_pointer;
+ expressionS e;
+
+ input_line_pointer = s;
+
+ if (expression(&e) == SEG_ABSOLUTE) {
+ opcode |= e.X_add_number << 5;
+ s = input_line_pointer;
+ input_line_pointer = push;
continue;
- }
- break;
- /* abort(); */
+ } /* if absolute */
+ break;
+ } /* alternate space */
+
case 'p':
if (strncmp(s, "%psr", 4) == 0) {
s += 4;
@@ -1347,10 +1402,23 @@ long val;
buf[3]=0;
}
break;
-#if 0
+
case RELOC_22:
+ if (val & ~0x003fffff) {
+ as_bad("relocation overflow");
+ } /* on overflow */
+ buf[1] |= (val >> 16) & 0x3f;
+ buf[2] = val >> 8;
+ buf[3] = val & 0xff;
+ break;
+
case RELOC_13:
-#endif
+ if (val & ~0x00001fff) {
+ as_bad("relocation overflow");
+ } /* on overflow */
+ buf[2] = (val >> 8) & 0x1f;
+ buf[3] = val & 0xff;
+ break;
/* start-sanitize-v9 */
#ifndef NO_V9
@@ -1492,6 +1560,7 @@ fragS *fragP;
segT segtype;
{
as_fatal("sparc_estimate_size_before_relax\n");
+ return(1);
} /* md_estimate_size_before_relax() */
#if 0
@@ -1718,6 +1787,13 @@ fixS *fixP;
return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
} /* md_pcrel_from() */
+void tc_aout_pre_write_hook(headers)
+object_headers *headers;
+{
+ H_SET_VERSION(headers, 1);
+ return;
+} /* tc_aout_pre_write_hook() */
+
/*
* Local Variables:
* comment-column: 0