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-rw-r--r--gas/config/obj-aout.c345
1 files changed, 179 insertions, 166 deletions
diff --git a/gas/config/obj-aout.c b/gas/config/obj-aout.c
index 6c1e100..7b7b59d 100644
--- a/gas/config/obj-aout.c
+++ b/gas/config/obj-aout.c
@@ -1,44 +1,42 @@
/* a.out object file format
Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
-
-This file is part of GAS, the GNU Assembler.
-
-GAS is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as
-published by the Free Software Foundation; either version 1,
-or (at your option) any later version.
-
-GAS is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
-the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public
-License along with GAS; see the file COPYING. If not, write
-to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* $Id$ */
+
+ This file is part of GAS, the GNU Assembler.
+
+ GAS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2,
+ or (at your option) any later version.
+
+ GAS is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public
+ License along with GAS; see the file COPYING. If not, write
+ to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "as.h"
-
+#include "aout/stab_gnu.h"
#include "obstack.h"
- /* in: segT out: N_TYPE bits */
+/* in: segT out: N_TYPE bits */
const short seg_N_TYPE[] = {
- N_ABS,
- N_TEXT,
- N_DATA,
- N_BSS,
- N_UNDF, /* unknown */
- N_UNDF, /* absent */
- N_UNDF, /* pass1 */
- N_UNDF, /* error */
- N_UNDF, /* bignum/flonum */
- N_UNDF, /* difference */
- N_UNDF, /* debug */
- N_UNDF, /* ntv */
- N_UNDF, /* ptv */
- N_REGISTER, /* register */
+ N_ABS,
+ N_TEXT,
+ N_DATA,
+ N_BSS,
+ N_UNDF, /* unknown */
+ N_UNDF, /* absent */
+ N_UNDF, /* pass1 */
+ N_UNDF, /* error */
+ N_UNDF, /* bignum/flonum */
+ N_UNDF, /* difference */
+ N_UNDF, /* debug */
+ N_UNDF, /* ntv */
+ N_UNDF, /* ptv */
+ N_REGISTER, /* register */
};
const segT N_TYPE_seg [N_TYPE+2] = { /* N_TYPE == 0x1E = 32-2 */
@@ -70,13 +68,43 @@ static void obj_aout_line();
#endif /* __STDC__ */
const pseudo_typeS obj_pseudo_table[] = {
+#ifndef IGNORE_DEBUG
+ /* stabs debug info */
{ "line", obj_aout_line, 0 }, /* source code line number */
- { "ln", obj_aout_line, 0 }, /* source code line number */
- { "desc", obj_aout_desc, 0 }, /* def */
+ { "ln", obj_aout_line, 0 }, /* coff line number that we use anyway */
+ { "desc", obj_aout_desc, 0 }, /* desc */
{ "stabd", obj_aout_stab, 'd' }, /* stabs */
{ "stabn", obj_aout_stab, 'n' }, /* stabs */
{ "stabs", obj_aout_stab, 's' }, /* stabs */
-
+#else /* IGNORE_DEBUG */
+ { "line", obj_aout_line, 0 }, /* source code line number */
+ { "ln", obj_aout_line, 0 }, /* coff line number that we use anyway */
+ { "desc", obj_aout_desc, 0 }, /* desc */
+ { "stabd", obj_aout_stab, 'd' }, /* stabs */
+ { "stabn", obj_aout_stab, 'n' }, /* stabs */
+ { "stabs", obj_aout_stab, 's' }, /* stabs */
+#endif /* IGNORE_DEBUG */
+
+ /* coff debug pseudos (ignored) */
+ { "def", s_ignore, 0 },
+ { "dim", s_ignore, 0 },
+ { "endef", s_ignore, 0 },
+ { "ident", s_ignore, 0 },
+ { "line", s_ignore, 0 },
+ { "ln", s_ignore, 0 },
+ { "scl", s_ignore, 0 },
+ { "size", s_ignore, 0 },
+ { "tag", s_ignore, 0 },
+ { "type", s_ignore, 0 },
+ { "val", s_ignore, 0 },
+ { "version", s_ignore, 0 },
+
+ /* stabs-in-coff (?) debug pseudos (ignored) */
+ { "optim", s_ignore, 0 }, /* For sun386i cc (?) */
+
+ /* other stuff */
+ { "ABORT", s_abort, 0 },
+
{ NULL} /* end sentinel */
}; /* obj_pseudo_table */
@@ -84,16 +112,6 @@ const pseudo_typeS obj_pseudo_table[] = {
/* Relocation. */
/*
- * In: length of relocation (or of address) in chars: 1, 2 or 4.
- * Out: GNU LD relocation length code: 0, 1, or 2.
- */
-
-static unsigned char
-nbytes_r_length [] = {
- 42, 0, 1, 42, 2
- };
-
-/*
* emit_relocations()
*
* Crawl along a fixS chain. Emit the segment's relocations.
@@ -103,42 +121,15 @@ char **where;
fixS *fixP; /* Fixup chain for this segment. */
relax_addressT segment_address_in_file;
{
- struct reloc_info_generic ri;
- register symbolS *symbolP;
-
- /* If a machine dependent emitter is needed, call it instead. */
- if (md_emit_relocations) {
- (*md_emit_relocations) (fixP, segment_address_in_file);
- return;
- }
-
- /* JF this is for paranoia */
- bzero((char *)&ri,sizeof(ri));
for (; fixP; fixP = fixP->fx_next) {
- if ((symbolP = fixP->fx_addsy) != 0) {
- ri.r_bsr = fixP->fx_bsr;
- ri.r_disp = fixP->fx_im_disp;
- ri.r_callj = fixP->fx_callj;
- ri.r_length = nbytes_r_length [fixP->fx_size];
- ri.r_pcrel = fixP->fx_pcrel;
- ri.r_address = fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file;
-
- if (S_GET_TYPE(symbolP) == N_UNDF) {
- ri.r_extern = 1;
- ri.r_symbolnum = symbolP->sy_number;
- } else {
- ri.r_extern = 0;
- ri.r_symbolnum = S_GET_TYPE(symbolP);
- }
-
- /* Output the relocation information in machine-dependent form. */
- md_ri_to_chars(*where, &ri);
+ if (fixP->fx_addsy != NULL) {
+ tc_aout_fix_to_chars(*where, fixP, segment_address_in_file);
*where += md_reloc_size;
} /* if there is an add symbol */
} /* for each fix */
-
+
return;
-} /* emit_relocations() */
+} /* obj_emit_relocations() */
/* Aout file generation & utilities */
void obj_header_append(where, headers)
@@ -146,8 +137,8 @@ char **where;
object_headers *headers;
{
tc_headers_hook(headers);
-
-#ifdef CROSS_ASSEMBLE
+
+#ifdef CROSS_COMPILE
md_number_to_chars(*where, headers->header.a_info, sizeof(headers->header.a_info));
*where += sizeof(headers->header.a_info);
md_number_to_chars(*where, headers->header.a_text, sizeof(headers->header.a_text));
@@ -164,20 +155,12 @@ object_headers *headers;
*where += sizeof(headers->header.a_trsize);
md_number_to_chars(*where, headers->header.a_drsize, sizeof(headers->header.a_drsize));
*where += sizeof(headers->header.a_drsize);
-#ifdef EXEC_MACHINE_TYPE
- md_number_to_chars(*where, headers->header.a_machtype, sizeof(headers->header.a_machtype));
- *where += sizeof(headers->header.a_machtype);
-#endif /* EXEC_MACHINE_TYPE */
-#ifdef EXEC_VERSION
- md_number_to_chars(*where, headers->header.a_version, sizeof(headers->header.a_version));
- *where += sizeof(headers->header.a_version);
-#endif /* EXEC_VERSION */
-
-#else /* CROSS_ASSEMBLE */
-
+
+#else /* CROSS_COMPILE */
+
append(where, (char *) &headers->header, sizeof(headers->header));
-#endif /* CROSS_ASSEMBLE */
-
+#endif /* CROSS_COMPILE */
+
return;
} /* obj_append_header() */
@@ -188,7 +171,7 @@ symbolS *symbolP;
md_number_to_chars((char *)&(S_GET_OFFSET(symbolP)), S_GET_OFFSET(symbolP), sizeof(S_GET_OFFSET(symbolP)));
md_number_to_chars((char *)&(S_GET_DESC(symbolP)), S_GET_DESC(symbolP), sizeof(S_GET_DESC(symbolP)));
md_number_to_chars((char *)&(S_GET_VALUE(symbolP)), S_GET_VALUE(symbolP), sizeof(S_GET_VALUE(symbolP)));
-
+
append(where, (char *)&symbolP->sy_symbol, sizeof(obj_symbol_type));
} /* obj_symbol_to_chars() */
@@ -196,27 +179,29 @@ void obj_emit_symbols(where, symbol_rootP)
char **where;
symbolS *symbol_rootP;
{
- symbolS * symbolP;
-
- /*
- * Emit all symbols left in the symbol chain.
- */
- for(symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) {
- /* Used to save the offset of the name. It is used to point
- to the string in memory but must be a file offset. */
- register char *temp;
-
- temp = S_GET_NAME(symbolP);
- S_SET_OFFSET(symbolP, symbolP->sy_name_offset);
-
- /* Any symbol still undefined and is not a dbg symbol is made N_EXT. */
- if (!S_IS_DEBUG(symbolP) && !S_IS_DEFINED(symbolP)) S_SET_EXTERNAL(symbolP);
-
- obj_symbol_to_chars(where, symbolP);
- S_SET_NAME(symbolP,temp);
- }
+ symbolS * symbolP;
+
+ /*
+ * Emit all symbols left in the symbol chain.
+ */
+ for(symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) {
+ /* Used to save the offset of the name. It is used to point
+ to the string in memory but must be a file offset. */
+ register char *temp;
+
+ temp = S_GET_NAME(symbolP);
+ S_SET_OFFSET(symbolP, symbolP->sy_name_offset);
+
+ /* Any symbol still undefined and is not a dbg symbol is made N_EXT. */
+ if (!S_IS_DEBUG(symbolP) && !S_IS_DEFINED(symbolP)) S_SET_EXTERNAL(symbolP);
+
+ obj_symbol_to_chars(where, symbolP);
+ S_SET_NAME(symbolP,temp);
+ }
} /* emit_symbols() */
+#if comment
+/* uneeded if symbol is born zeroed. */
void obj_symbol_new_hook(symbolP)
symbolS *symbolP;
{
@@ -224,6 +209,7 @@ symbolS *symbolP;
S_SET_DESC(symbolP, 0);
return;
} /* obj_symbol_new_hook() */
+#endif /* comment */
static void obj_aout_line() {
/* Assume delimiter is part of expression. */
@@ -255,33 +241,35 @@ static void obj_aout_line() {
static void obj_aout_stab(what)
int what;
{
- register symbolS * symbolP = 0;
- register char * string;
- int saved_type = 0;
- int length;
- int goof; /* TRUE if we have aborted. */
- long longint;
-
-/*
- * Enter with input_line_pointer pointing past .stabX and any following
- * whitespace.
- */
+ extern int listing;
+
+ register symbolS * symbolP = 0;
+ register char * string;
+ int saved_type = 0;
+ int length;
+ int goof; /* TRUE if we have aborted. */
+ long longint;
+
+ /*
+ * Enter with input_line_pointer pointing past .stabX and any following
+ * whitespace.
+ */
goof = 0; /* JF who forgot this?? */
if (what == 's') {
string = demand_copy_C_string(& length);
SKIP_WHITESPACE();
if (* input_line_pointer == ',')
- input_line_pointer ++;
+ input_line_pointer ++;
else {
as_bad("I need a comma after symbol's name");
goof = 1;
}
} else
- string = "";
-
-/*
- * Input_line_pointer->after ','. String->symbol name.
- */
+ string = "";
+
+ /*
+ * Input_line_pointer->after ','. String->symbol name.
+ */
if (! goof) {
symbolP = symbol_new(string,
SEG_UNKNOWN,
@@ -293,39 +281,39 @@ int what;
S_SET_VALUE(symbolP, obstack_next_free(&frags) - frag_now->fr_literal);
symbolP->sy_frag = frag_now;
break;
-
+
case 'n':
symbolP->sy_frag = &zero_address_frag;
break;
-
+
case 's':
symbolP->sy_frag = & zero_address_frag;
break;
-
+
default:
BAD_CASE(what);
break;
}
-
+
if (get_absolute_expression_and_terminator(&longint) == ',')
- symbolP->sy_symbol.n_type = saved_type = longint;
+ symbolP->sy_symbol.n_type = saved_type = longint;
else {
as_bad("I want a comma after the n_type expression");
goof = 1;
input_line_pointer --; /* Backup over a non-',' char. */
}
}
-
+
if (!goof) {
if (get_absolute_expression_and_terminator(&longint) == ',')
- S_SET_OTHER(symbolP, longint);
+ S_SET_OTHER(symbolP, longint);
else {
as_bad("I want a comma after the n_other expression");
goof = 1;
input_line_pointer--; /* Backup over a non-',' char. */
}
}
-
+
if (!goof) {
S_SET_DESC(symbolP, get_absolute_expression());
if (what == 's' || what == 'n') {
@@ -337,16 +325,31 @@ int what;
}
}
}
-
+
if ((!goof) && (what=='s' || what=='n')) {
pseudo_set(symbolP);
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();
+ ignore_rest_of_line();
else
- demand_empty_rest_of_line ();
+ demand_empty_rest_of_line ();
} /* obj_aout_stab() */
static void obj_aout_desc() {
@@ -355,10 +358,10 @@ static void obj_aout_desc() {
register char *p;
register symbolS *symbolP;
register int temp;
-
+
/*
* Frob invented at RMS' request. Set the n_desc of a symbol.
- */
+ */
name = input_line_pointer;
c = get_symbol_end();
p = input_line_pointer;
@@ -390,44 +393,44 @@ object_headers *headers;
symbolS *symbolP;
symbolS **symbolPP;
int symbol_number = 0;
-
+
/* JF deal with forward references first... */
for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) {
if (symbolP->sy_forward) {
S_SET_VALUE(symbolP, S_GET_VALUE(symbolP)
+ S_GET_VALUE(symbolP->sy_forward)
+ symbolP->sy_forward->sy_frag->fr_address);
-
+
symbolP->sy_forward=0;
} /* if it has a forward reference */
} /* walk the symbol chain */
-
+
tc_crawl_symbol_chain(headers);
-
+
symbolPP = &symbol_rootP; /*->last symbol chain link. */
while ((symbolP = *symbolPP) != NULL) {
if (flagseen['R'] && (S_GET_SEGMENT(symbolP) == SEG_DATA)) {
S_SET_SEGMENT(symbolP, SEG_TEXT);
} /* if pusing data into text */
-
+
S_SET_VALUE(symbolP, S_GET_VALUE(symbolP) + symbolP->sy_frag->fr_address);
-
+
/* OK, here is how we decide which symbols go out into the
brave new symtab. Symbols that do are:
-
+
* symbols with no name (stabd's?)
* symbols with debug info in their N_TYPE
-
+
Symbols that don't are:
* symbols that are registers
* symbols with \1 as their 3rd character (numeric labels)
* "local labels" as defined by S_LOCAL_NAME(name)
if the -L switch was passed to gas.
-
+
All other symbols are output. We complain if a deleted
symbol was marked external. */
-
-
+
+
if (!S_IS_REGISTER(symbolP)
&& (!S_GET_NAME(symbolP)
|| S_IS_DEBUG(symbolP)
@@ -438,7 +441,7 @@ object_headers *headers;
#endif /* TC_I960 */
|| (S_GET_NAME(symbolP)[0] != '\001' && (flagseen ['L'] || ! S_LOCAL_NAME(symbolP))))) {
symbolP->sy_number = symbol_number++;
-
+
/* The + 1 after strlen account for the \0 at the
end of each string */
if (!S_IS_STABD(symbolP)) {
@@ -451,16 +454,16 @@ object_headers *headers;
symbolPP = &(symbol_next(symbolP));
} else {
if (S_IS_EXTERNAL(symbolP) || !S_IS_DEFINED(symbolP)) {
- as_bad("Local symbol %s never defined", S_GET_NAME(symbolP));
+ as_bad("Local symbol %s never defined.", decode_local_label_name(S_GET_NAME(symbolP)));
} /* oops. */
-
+
/* Unhook it from the chain */
*symbolPP = symbol_next(symbolP);
} /* if this symbol should be in the output */
} /* for each symbol */
-
+
H_SET_SYMBOL_TABLE_SIZE(headers, symbol_number);
-
+
return;
} /* obj_crawl_symbol_chain() */
@@ -472,24 +475,34 @@ void obj_emit_strings(where)
char **where;
{
symbolS *symbolP;
-
-#ifdef CROSS_ASSEMBLE
+
+#ifdef CROSS_COMPILE
/* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */
md_number_to_chars(*where, string_byte_count, sizeof(string_byte_count));
*where += sizeof(string_byte_count);
-#else /* CROSS_ASSEMBLE */
+#else /* CROSS_COMPILE */
append (where, (char *)&string_byte_count, (unsigned long)sizeof(string_byte_count));
-#endif /* CROSS_ASSEMBLE */
-
+#endif /* CROSS_COMPILE */
+
for(symbolP = symbol_rootP; symbolP; symbolP = symbol_next(symbolP)) {
if(S_GET_NAME(symbolP))
append(&next_object_file_charP, S_GET_NAME(symbolP),
(unsigned long)(strlen (S_GET_NAME(symbolP)) + 1));
} /* walk symbol chain */
-
+
return;
} /* obj_emit_strings() */
+void obj_pre_write_hook(headers)
+object_headers *headers;
+{
+ H_SET_DYNAMIC(headers, 0);
+ H_SET_VERSION(headers, 0);
+ H_SET_MACHTYPE(headers, AOUT_MACHTYPE);
+ tc_aout_pre_write_hook(headers);
+ return;
+} /* obj_pre_write_hook() */
+
/*
* Local Variables:
* comment-column: 0
generated by cgit v1.1 at 2024-12-15 14:49:31 +0000