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authorJohn Gilmore <gnu@cygnus>1992-01-05 00:40:29 +0000
committerJohn Gilmore <gnu@cygnus>1992-01-05 00:40:29 +0000
commit454328368517571ba4aaf85ab3f9f17e5cadc10d (patch)
tree45eb415dd522ca349486ee4fac2bfa9055872818
parentcbe2c166aa7a434e73c97f336b4ee2a10ed12717 (diff)
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* as.h: Move redefine of xfree.
* read.c: Use xmalloc, not malloc. * expr.c, input-scrub.c, write.c: Avoid "know" macros that cover more than one line, since this causes char strings with embedded newlines.
-rw-r--r--gas/ChangeLog14
-rw-r--r--gas/write.c163
2 files changed, 73 insertions, 104 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 12cca8c..cccf286 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,17 @@
+Sat Jan 4 16:34:16 1992 John Gilmore (gnu at cygnus.com)
+
+ * as.h: Move redefine of xfree.
+ * read.c: Use xmalloc, not malloc.
+ * expr.c, input-scrub.c, write.c: Avoid "know" macros
+ that cover more than one line, since this causes char strings
+ with embedded newlines.
+
+Wed Dec 11 18:13:07 1991 Steve Chamberlain (sac at rtl.cygnus.com)
+ * configure.in: handle rename of obj-coffbfd
+ * config/obj-coffbfd.c: lint, don't fixup relocs if H8300, use
+ tc_reloc_mangle to prepare relocation if one available
+ * config/tc-h8300.h: added tc_reloc_mangle routine
+
Tue Dec 10 04:07:28 1991 K. Richard Pixley (rich at rtl.cygnus.com)
* input-file.c: don't close a NULL file pointer.
diff --git a/gas/write.c b/gas/write.c
index 7dce445..702f1a0 100644
--- a/gas/write.c
+++ b/gas/write.c
@@ -1,3 +1,4 @@
+
/* write.c - emit .o file
Copyright (C) 1986, 1987, 1990, 1991 Free Software Foundation, Inc.
@@ -31,33 +32,17 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
*/
#include "as.h"
-
#include "subsegs.h"
#include "obstack.h"
#include "output-file.h"
-/* Hook for machine dependent relocation information output routine.
- If not defined, the variable is allocated in BSS (Fortran common model).
- If some other module defines it, we will see their value. */
-
-void (*md_emit_relocations)();
-
-/*
- * In: length of relocation (or of address) in chars: 1, 2 or 4.
- * Out: GNU LD relocation length code: 0, 1, or 2.
- */
-
-unsigned char
-nbytes_r_length [] = {
- 42, 0, 1, 42, 2
- };
-
-
+#ifndef MANY_SEGMENTS
static struct frag *text_frag_root;
static struct frag *data_frag_root;
static struct frag *text_last_frag; /* Last frag in segment. */
static struct frag *data_last_frag; /* Last frag in segment. */
+#endif
static object_headers headers;
@@ -77,14 +62,14 @@ int magic_number_for_object_file = DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE;
static int is_dnrange(struct frag *f1, struct frag *f2);
static long fixup_segment(fixS *fixP, segT this_segment_type);
static relax_addressT relax_align(relax_addressT address, long alignment);
-static void relax_segment(struct frag *segment_frag_root, segT segment_type);
+ void relax_segment(struct frag *segment_frag_root, segT segment_type);
#else
static int is_dnrange();
static long fixup_segment();
static relax_addressT relax_align();
-static void relax_segment();
+ void relax_segment();
#endif /* __STDC__ */
@@ -147,8 +132,9 @@ enum reloc_type r_type; /* Relocation type */
fixP->fx_callj = 0;
return fixP;
}
-
-void write_object_file() {
+#ifndef BFD
+void write_object_file()
+{
register struct frchain * frchainP; /* Track along all frchains. */
register fragS * fragP; /* Track along all frags. */
register struct frchain * next_frchainP;
@@ -269,8 +255,7 @@ void write_object_file() {
if (data_frag_root) {
register relax_addressT slide;
- know((text_last_frag->fr_type == rs_fill)
- && (text_last_frag->fr_offset == 0));
+ know((text_last_frag->fr_type == rs_fill) && (text_last_frag->fr_offset == 0));
H_SET_DATA_SIZE(&headers, data_last_frag->fr_address);
data_last_frag->fr_address = H_GET_DATA_SIZE(&headers);
@@ -350,6 +335,9 @@ void write_object_file() {
case rs_machine_dependent:
md_convert_frag(&headers, fragP);
+
+ know((fragP->fr_next == NULL) || ((fragP->fr_next->fr_address - fragP->fr_address) == fragP->fr_fix));
+
/*
* After md_convert_frag, we make the frag into a ".space 0".
* Md_convert_frag() should set up any fixSs and constants
@@ -379,6 +367,8 @@ void write_object_file() {
BAD_CASE( fragP->fr_type );
break;
} /* switch (fr_type) */
+
+ know((fragP->fr_next == NULL) || ((fragP->fr_next->fr_address - fragP->fr_address) == (fragP->fr_fix + (fragP->fr_offset * fragP->fr_var))));
} /* for each frag. */
#ifndef WORKING_DOT_WORD
@@ -473,23 +463,17 @@ void write_object_file() {
* Scan every FixS performing fixups. We had to wait until now to do
* this because md_convert_frag() may have made some fixSs.
*/
+
H_SET_RELOCATION_SIZE(&headers,
md_reloc_size * fixup_segment(text_fix_root, SEG_TEXT),
md_reloc_size * fixup_segment(data_fix_root, SEG_DATA));
-
+
+
/* FIXME move this stuff into the pre-write-hook */
H_SET_MAGIC_NUMBER(&headers, magic_number_for_object_file);
H_SET_ENTRY_POINT(&headers, 0);
-
-#ifdef EXEC_MACHINE_TYPE
- H_SET_MACHINE_TYPE(&headers, EXEC_MACHINE_TYPE);
-#endif
-#ifdef EXEC_VERSION
- H_SET_VERSION(&headers, EXEC_VERSION);
-#endif
-
+
obj_pre_write_hook(&headers); /* extra coff stuff */
-
if ((had_warnings() && flagseen['Z'])
|| had_errors() > 0) {
if (flagseen['Z']) {
@@ -505,10 +489,11 @@ void write_object_file() {
object_file_size = H_GET_FILE_SIZE(&headers);
next_object_file_charP = the_object_file = xmalloc(object_file_size);
-
+
output_file_create(out_file_name);
-
+
obj_header_append(&next_object_file_charP, &headers);
+
know((next_object_file_charP - the_object_file) == H_GET_HEADER_SIZE(&headers));
/*
@@ -531,20 +516,13 @@ void write_object_file() {
} /* for each code frag. */
- know((next_object_file_charP - the_object_file)
- == (H_GET_HEADER_SIZE(&headers)
- + H_GET_TEXT_SIZE(&headers)
- + H_GET_DATA_SIZE(&headers)));
+ know((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE(&headers) + H_GET_TEXT_SIZE(&headers) + H_GET_DATA_SIZE(&headers)));
/*
* Emit relocations.
*/
obj_emit_relocations(&next_object_file_charP, text_fix_root, (relax_addressT)0);
- know((next_object_file_charP - the_object_file)
- == (H_GET_HEADER_SIZE(&headers)
- + H_GET_TEXT_SIZE(&headers)
- + H_GET_DATA_SIZE(&headers)
- + H_GET_TEXT_RELOCATION_SIZE(&headers)));
+ know((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE(&headers) + H_GET_TEXT_SIZE(&headers) + H_GET_DATA_SIZE(&headers) + H_GET_TEXT_RELOCATION_SIZE(&headers)));
#ifdef TC_I960
/* Make addresses in data relocation directives relative to beginning of
* first data fragment, not end of last text fragment: alignment of the
@@ -555,37 +533,19 @@ void write_object_file() {
obj_emit_relocations(&next_object_file_charP, data_fix_root, text_last_frag->fr_address);
#endif /* TC_I960 */
- know((next_object_file_charP - the_object_file)
- == (H_GET_HEADER_SIZE(&headers)
- + H_GET_TEXT_SIZE(&headers)
- + H_GET_DATA_SIZE(&headers)
- + H_GET_TEXT_RELOCATION_SIZE(&headers)
- + H_GET_DATA_RELOCATION_SIZE(&headers)));
+ know((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE(&headers) + H_GET_TEXT_SIZE(&headers) + H_GET_DATA_SIZE(&headers) + H_GET_TEXT_RELOCATION_SIZE(&headers) + H_GET_DATA_RELOCATION_SIZE(&headers)));
/*
* Emit line number entries.
*/
OBJ_EMIT_LINENO(&next_object_file_charP, lineno_rootP, the_object_file);
- know((next_object_file_charP - the_object_file)
- == (H_GET_HEADER_SIZE(&headers)
- + H_GET_TEXT_SIZE(&headers)
- + H_GET_DATA_SIZE(&headers)
- + H_GET_TEXT_RELOCATION_SIZE(&headers)
- + H_GET_DATA_RELOCATION_SIZE(&headers)
- + H_GET_LINENO_SIZE(&headers)));
+ know((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE(&headers) + H_GET_TEXT_SIZE(&headers) + H_GET_DATA_SIZE(&headers) + H_GET_TEXT_RELOCATION_SIZE(&headers) + H_GET_DATA_RELOCATION_SIZE(&headers) + H_GET_LINENO_SIZE(&headers)));
/*
* Emit symbols.
*/
obj_emit_symbols(&next_object_file_charP, symbol_rootP);
- know((next_object_file_charP - the_object_file)
- == (H_GET_HEADER_SIZE(&headers)
- + H_GET_TEXT_SIZE(&headers)
- + H_GET_DATA_SIZE(&headers)
- + H_GET_TEXT_RELOCATION_SIZE(&headers)
- + H_GET_DATA_RELOCATION_SIZE(&headers)
- + H_GET_LINENO_SIZE(&headers)
- + H_GET_SYMBOL_TABLE_SIZE(&headers)));
+ know((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE(&headers) + H_GET_TEXT_SIZE(&headers) + H_GET_DATA_SIZE(&headers) + H_GET_TEXT_RELOCATION_SIZE(&headers) + H_GET_DATA_RELOCATION_SIZE(&headers) + H_GET_LINENO_SIZE(&headers) + H_GET_SYMBOL_TABLE_SIZE(&headers)));
/*
* Emit strings.
@@ -595,19 +555,18 @@ void write_object_file() {
obj_emit_strings(&next_object_file_charP);
} /* only if we have a string table */
- know((next_object_file_charP - the_object_file)
- == (H_GET_HEADER_SIZE(&headers)
- + H_GET_TEXT_SIZE(&headers)
- + H_GET_DATA_SIZE(&headers)
- + H_GET_TEXT_RELOCATION_SIZE(&headers)
- + H_GET_DATA_RELOCATION_SIZE(&headers)
- + H_GET_LINENO_SIZE(&headers)
- + H_GET_SYMBOL_TABLE_SIZE(&headers)
- + H_GET_STRING_SIZE(&headers)));
-
- know(next_object_file_charP == the_object_file + object_file_size);
+/* know((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE(&headers) + H_GET_TEXT_SIZE(&headers) + H_GET_DATA_SIZE(&headers) + H_GET_TEXT_RELOCATION_SIZE(&headers) + H_GET_DATA_RELOCATION_SIZE(&headers) + H_GET_LINENO_SIZE(&headers) + H_GET_SYMBOL_TABLE_SIZE(&headers) + H_GET_STRING_SIZE(&headers)));
+*/
+/* know(next_object_file_charP == the_object_file + object_file_size);*/
+
+#ifdef BFD_HEADERS
+ bfd_seek(stdoutput, 0, 0);
+ bfd_write(the_object_file, 1, object_file_size, stdoutput);
+#else
+
/* Write the data to the file */
output_file_append(the_object_file,object_file_size,out_file_name);
+#endif
#ifdef DONTDEF
if (flagseen['G']) /* GDB symbol file to be appended? */
@@ -626,6 +585,8 @@ void write_object_file() {
VMS_write_object_file(text_siz, data_siz, text_frag_root, data_frag_root);
#endif /* VMS */
} /* write_object_file() */
+#else
+#endif
/*
* relax_segment()
@@ -639,9 +600,9 @@ void write_object_file() {
* within the segment. Since segments live in different file addresses,
* these frag addresses may not be the same as final object-file addresses.
*/
-#ifndef VMS
-static
-#endif /* not VMS */
+
+
+
void relax_segment(segment_frag_root, segment)
struct frag * segment_frag_root;
segT segment; /* SEG_DATA or SEG_TEXT */
@@ -650,9 +611,9 @@ void relax_segment(segment_frag_root, segment)
register relax_addressT address;
/* register relax_addressT old_address; JF unused */
/* register relax_addressT new_address; JF unused */
-
+#ifndef MANY_SEGMENTS
know( segment == SEG_DATA || segment == SEG_TEXT );
-
+#endif
/* In case md_estimate_size_before_relax() wants to make fixSs. */
subseg_change(segment, 0);
@@ -666,7 +627,7 @@ void relax_segment(segment_frag_root, segment)
switch (fragP->fr_type) {
case rs_fill:
- address += fragP->fr_offset * fragP->fr_var;
+ address += fragP->fr_offset * fragP->fr_var ;
break;
case rs_align:
@@ -790,12 +751,12 @@ void relax_segment(segment_frag_root, segment)
target = offset;
if (symbolP) {
- know((S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE)
- || (S_GET_SEGMENT(symbolP) == SEG_DATA)
- || (S_GET_SEGMENT(symbolP) == SEG_TEXT));
+#ifdef MANY_SEGMENTS
+#else
+ know((S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE) || (S_GET_SEGMENT(symbolP) == SEG_DATA) || (S_GET_SEGMENT(symbolP) == SEG_TEXT));
know(symbolP->sy_frag);
- know(!(S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE)
- || (symbolP->sy_frag == &zero_address_frag));
+ know(!(S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE) || (symbolP->sy_frag == &zero_address_frag));
+#endif
target += S_GET_VALUE(symbolP)
+ symbolP->sy_frag->fr_address;
} /* if we have a symbol */
@@ -820,12 +781,11 @@ void relax_segment(segment_frag_root, segment)
target = offset;
if (symbolP) {
- know((S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE) ||
- (S_GET_SEGMENT(symbolP) == SEG_DATA) ||
- (S_GET_SEGMENT(symbolP) == SEG_TEXT));
+#ifndef MANY_SEGMENTS
+ know((S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE) || (S_GET_SEGMENT(symbolP) == SEG_DATA) || (S_GET_SEGMENT(symbolP) == SEG_TEXT))
+#endif
know(symbolP->sy_frag);
- know(!(S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE) ||
- symbolP->sy_frag==&zero_address_frag );
+ know(!(S_GET_SEGMENT(symbolP) == SEG_ABSOLUTE) || symbolP->sy_frag==&zero_address_frag );
target +=
S_GET_VALUE(symbolP)
+ symbolP->sy_frag->fr_address;
@@ -977,7 +937,7 @@ segT this_segment_type; /* N_TYPE bits for segment. */
register fragS *fragP;
register segT add_symbol_segment = SEG_ABSOLUTE;
-
+/* FIXME: remove this line */ /* fixS *orig = fixP; */
seg_reloc_count = 0;
for ( ; fixP; fixP = fixP->fx_next) {
@@ -1021,9 +981,7 @@ segT this_segment_type; /* N_TYPE bits for segment. */
/* if sub_symbol is in the same segment that add_symbol
and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE */
} else if ((S_GET_SEGMENT(sub_symbolP) == add_symbol_segment)
- && ((add_symbol_segment == SEG_DATA)
- || (add_symbol_segment == SEG_TEXT)
- || (add_symbol_segment == SEG_BSS)
+ && (SEG_NORMAL(add_symbol_segment)
|| (add_symbol_segment == SEG_ABSOLUTE))) {
/* Difference of 2 symbols from same segment. */
/* Can't make difference of 2 undefineds: 'value' means */
@@ -1085,10 +1043,7 @@ segT this_segment_type; /* N_TYPE bits for segment. */
fixP->fx_addsy = NULL;
add_symbolP = NULL;
break;
-
- case SEG_BSS:
- case SEG_DATA:
- case SEG_TEXT:
+ default:
seg_reloc_count ++;
add_number += S_GET_VALUE(add_symbolP);
break;
@@ -1115,11 +1070,10 @@ segT this_segment_type; /* N_TYPE bits for segment. */
#endif /* comment */
++seg_reloc_count;
+
break;
- default:
- BAD_CASE(add_symbol_segment);
- break;
+
} /* switch on symbol seg */
} /* if not in local seg */
} /* if there was a + symbol */
@@ -1158,6 +1112,7 @@ segT this_segment_type; /* N_TYPE bits for segment. */
} /* for each fix */
}
#endif /* TC_I960 */
+
#endif /* OBJ_COFF */
return(seg_reloc_count);
} /* fixup_segment() */