7 #include "beasm_asm_gnu.h"
9 static struct obstack *get_obstack_for_segment ( gnuasm_privdata_t *privdata, asm_segment_t segment ) {
12 case ASM_SEGMENT_CONST:
13 return &privdata->rdata_obst;
15 case ASM_SEGMENT_DATA_INIT:
16 return &privdata->data_obst;
18 case ASM_SEGMENT_CODE:
19 return &privdata->code_obst;
21 case ASM_SEGMENT_DATA_UNINIT:
22 return &privdata->common_obst;
25 assert(0 && "unknown segment type");
33 * the dumper callbacks
35 static void gnuasm_dump_align(void *data, asm_segment_t segment, int align) {
36 gnuasm_privdata_t *privdata = data;
37 struct obstack* obst = get_obstack_for_segment( privdata, segment );
38 obstack_printf(obst, "\t.align %d\n", align);
41 static void gnuasm_dump_arith_tarval(void *data, asm_segment_t segment, tarval *tv, int bytes)
43 gnuasm_privdata_t *privdata = data;
44 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
49 obstack_printf(obst, "0x%02x", get_tarval_sub_bits(tv, 0));
52 obstack_printf(obst, "0x%02x%02x", get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
56 obstack_printf(obst, "0x%02x%02x%02x%02x",
57 get_tarval_sub_bits(tv, 3), get_tarval_sub_bits(tv, 2), get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
61 obstack_printf(obst, "0x%02x%02x%02x%02x%02x%02x%02x%02x",
62 get_tarval_sub_bits(tv, 7), get_tarval_sub_bits(tv, 6), get_tarval_sub_bits(tv, 5), get_tarval_sub_bits(tv, 4), get_tarval_sub_bits(tv, 3), get_tarval_sub_bits(tv, 2), get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
66 fprintf(stderr, "Try to dump an tarval with %d bytes\n", bytes);
72 static void gnuasm_dump_atomic_decl(void *data, asm_segment_t segment, int bytes)
74 gnuasm_privdata_t *privdata = data;
75 struct obstack* obst = get_obstack_for_segment( privdata, segment );
80 obstack_printf(obst, "\t.byte\t");
84 obstack_printf(obst, "\t.value\t");
88 obstack_printf(obst, "\t.long\t");
92 obstack_printf(obst, "\t.quad\t");
96 fprintf(stderr, "Try to dump an tarval with %d bytes\n", bytes);
100 // obstack_printf(obst, "\n");
103 static void gnuasm_dump_string(void *data, asm_segment_t segment, entity *ent)
105 gnuasm_privdata_t *privdata = data;
108 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
110 obstack_printf(obst, "\t.string \"");
111 n = get_compound_ent_n_values(ent);
113 for (i = 0; i < n-1; ++i) {
117 irn = get_compound_ent_value(ent, i);
118 c = (int) get_tarval_long(get_Const_tarval(irn));
121 case '"' : obstack_printf(obst, "\\\""); break;
122 case '\n': obstack_printf(obst, "\\n"); break;
123 case '\r': obstack_printf(obst, "\\r"); break;
124 case '\t': obstack_printf(obst, "\\t"); break;
127 obstack_printf(obst, "%c", c);
129 obstack_printf(obst, "%O", c);
133 obstack_printf(obst, "\"\n");
137 static void gnuasm_dump_declare_initialized_symbol(void *data, asm_segment_t segment, const char* ld_name, int bytes, int align, ent_visibility visibility)
139 gnuasm_privdata_t* priv_data = data;
141 /* get the obstack for the given segment (const, data) */
142 struct obstack* obst = get_obstack_for_segment ( priv_data, segment );
144 /* if the symbol is externally visible, declare it so. */
145 if (visibility == visibility_external_visible)
146 obstack_printf(obst, ".globl\t%s\n", ld_name);
148 obstack_printf(obst, "\t.type\t%s,@object\n", ld_name);
149 obstack_printf(obst, "\t.size\t%s,%d\n", ld_name, bytes);
150 obstack_printf(obst, "\t.align\t%d\n", align);
151 obstack_printf(obst, "\t%s:\n", ld_name);
154 static void gnuasm_dump_declare_uninitialized_symbol(void *data, asm_segment_t segment, const char* ld_name, int bytes, int align, ent_visibility visibility)
156 gnuasm_privdata_t *priv_data = data;
158 /* external symbols are not required to be declared in gnuasm. */
159 if(visibility == visibility_external_allocated) return;
161 /* declare local, uninitialized symbol to the uninit-obst */
162 obstack_printf(&priv_data->common_obst, "\t.comm\t%s,%d,%d\n", ld_name, bytes, align);
165 static void gnuasm_dump_zero_padding(void *data, asm_segment_t segment, int size)
167 gnuasm_privdata_t *privdata = data;
168 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
169 obstack_printf(obst, "\t.zero\t%d\n", size);
172 ////////////////////////////////////////////////////////////////////////////
174 static void gnuasm_dump_arith_op(void *data, asm_segment_t segment, asm_arith_operation_t op)
176 gnuasm_privdata_t *privdata = data;
177 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
179 case ASM_ARITH_OPERATION_ADD:
180 obstack_printf(obst, "+");
182 case ASM_ARITH_OPERATION_SUB:
183 obstack_printf(obst, "-");
185 case ASM_ARITH_OPERATION_MUL:
186 obstack_printf(obst, "*");
189 //obstack_printf(obst, "+");
192 static void gnuasm_dump_symconst(void *data, asm_segment_t segment, ir_node *init)
194 gnuasm_privdata_t *privdata = data;
195 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
196 switch (get_SymConst_kind(init)) {
197 case symconst_addr_name:
198 obstack_printf(obst, "%s", get_id_str(get_SymConst_name(init)));
201 case symconst_addr_ent:
202 obstack_printf(obst, "%s", get_entity_ld_name(get_SymConst_entity(init)));
206 obstack_printf(obst, "%d", get_type_size_bytes(get_SymConst_type(init)));
210 assert(0 && "dump_atomic_init(): don't know how to init from this SymConst");
214 static void gnuasm_dump_newline(void *data, asm_segment_t segment)
216 gnuasm_privdata_t *privdata = data;
217 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
218 obstack_printf(obst, "\n");
221 //////////////////////////////////////////////////////////////////////////////
223 static void gnuasm_dump_header(void *data) {
224 gnuasm_privdata_t *privdata = data;
227 static void gnuasm_dump_footer(void *data) {
228 gnuasm_privdata_t *privdata = data;
231 static void gnuasm_dump_segment_header(void *data) {
232 gnuasm_privdata_t *privdata = data;
235 //////////////////////////////////////////////////////////////////////////////
237 assembler_t *gnuasm_create_assembler ( void ) {
239 gnuasm_privdata_t *priv_data = malloc ( sizeof(gnuasm_privdata_t ));
240 assembler_t *assembler = malloc ( sizeof( assembler_t ));
241 memset(assembler, 0, sizeof( assembler_t ));
242 assembler->private_data = priv_data;
244 obstack_init (&priv_data->common_obst);
245 obstack_init (&priv_data->data_obst);
246 obstack_init (&priv_data->rdata_obst);
247 obstack_init (&priv_data->code_obst);
250 assembler->dump_declare_uninitialized_symbol = gnuasm_dump_declare_uninitialized_symbol;
251 assembler->dump_declare_initialized_symbol = gnuasm_dump_declare_initialized_symbol;
253 // assembler->dump_align = (dump_align_proc) &gnuasm_dump_align;
254 assembler->dump_arith_tarval = gnuasm_dump_arith_tarval;
255 assembler->dump_atomic_decl = gnuasm_dump_atomic_decl;
256 assembler->dump_string = gnuasm_dump_string;
257 assembler->dump_zero_padding = gnuasm_dump_zero_padding;
258 assembler->dump_arith_op = gnuasm_dump_arith_op;
259 assembler->dump_symconst = gnuasm_dump_symconst;
260 assembler->dump_newline = gnuasm_dump_newline;
262 assembler->dump_header = gnuasm_dump_header;
263 assembler->dump_footer = gnuasm_dump_footer;
264 assembler->dump_segment_header = gnuasm_dump_segment_header;
271 static void gnuasm_dump_obst(struct obstack *obst, FILE *out) {
272 obstack_grow0 (obst, NULL, 0);
273 fprintf(out, "%s", obstack_finish(obst));
276 void gnuasm_dump( assembler_t *assembler, FILE *out ) {
278 gnuasm_privdata_t *privdata = assembler->private_data;
280 // fprintf(out, "<COMMON>\n");
281 gnuasm_dump_obst ( &privdata->common_obst, out);
282 fprintf(out, ".data\n");
283 gnuasm_dump_obst ( &privdata->data_obst, out);
284 fprintf(out, ".section .rodata\n");
285 gnuasm_dump_obst ( &privdata->rdata_obst, out);
286 fprintf(out, ".text\n");
287 gnuasm_dump_obst ( &privdata->code_obst, out);
291 void gnuasm_delete_assembler( assembler_t *assembler ) {
292 free( assembler->private_data );