11 #include "beasm_asm_gnu.h"
13 static struct obstack *get_obstack_for_segment ( gnuasm_privdata_t *privdata, asm_segment_t segment ) {
16 case ASM_SEGMENT_CONST:
17 return &privdata->rdata_obst;
19 case ASM_SEGMENT_DATA_INIT:
20 return &privdata->data_obst;
22 case ASM_SEGMENT_CODE:
23 return &privdata->code_obst;
25 case ASM_SEGMENT_DATA_UNINIT:
26 return &privdata->common_obst;
29 assert(0 && "unknown segment type");
37 * the dumper callbacks
40 static void gnuasm_dump_align(void *data, asm_segment_t segment, int align) {
41 gnuasm_privdata_t *privdata = data;
42 struct obstack* obst = get_obstack_for_segment( privdata, segment );
43 obstack_printf(obst, "\t.align %d\n", align);
47 static void gnuasm_dump_arith_tarval(void *data, asm_segment_t segment, tarval *tv, int bytes)
49 gnuasm_privdata_t *privdata = data;
50 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
55 obstack_printf(obst, "0x%02x", get_tarval_sub_bits(tv, 0));
58 obstack_printf(obst, "0x%02x%02x", get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
62 obstack_printf(obst, "0x%02x%02x%02x%02x",
63 get_tarval_sub_bits(tv, 3), get_tarval_sub_bits(tv, 2), get_tarval_sub_bits(tv, 1), get_tarval_sub_bits(tv, 0));
67 obstack_printf(obst, "0x%02x%02x%02x%02x%02x%02x%02x%02x",
68 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));
72 fprintf(stderr, "Try to dump an tarval with %d bytes\n", bytes);
78 static void gnuasm_dump_atomic_decl(void *data, asm_segment_t segment, int bytes)
80 gnuasm_privdata_t *privdata = data;
81 struct obstack* obst = get_obstack_for_segment( privdata, segment );
86 obstack_printf(obst, "\t.byte\t");
90 obstack_printf(obst, "\t.value\t");
94 obstack_printf(obst, "\t.long\t");
98 obstack_printf(obst, "\t.quad\t");
102 fprintf(stderr, "Try to dump an tarval with %d bytes\n", bytes);
106 // obstack_printf(obst, "\n");
109 static void gnuasm_dump_string(void *data, asm_segment_t segment, entity *ent)
111 gnuasm_privdata_t *privdata = data;
114 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
116 obstack_printf(obst, "\t.string \"");
117 n = get_compound_ent_n_values(ent);
119 for (i = 0; i < n-1; ++i) {
123 irn = get_compound_ent_value(ent, i);
124 c = (int) get_tarval_long(get_Const_tarval(irn));
127 case '"' : obstack_printf(obst, "\\\""); break;
128 case '\n': obstack_printf(obst, "\\n"); break;
129 case '\r': obstack_printf(obst, "\\r"); break;
130 case '\t': obstack_printf(obst, "\\t"); break;
133 obstack_printf(obst, "%c", c);
135 obstack_printf(obst, "%O", c);
139 obstack_printf(obst, "\"\n");
143 static void gnuasm_dump_declare_initialized_symbol(void *data, asm_segment_t segment, const char* ld_name, int bytes, int align, visibility visibility)
145 gnuasm_privdata_t* priv_data = data;
147 /* get the obstack for the given segment (const, data) */
148 struct obstack* obst = get_obstack_for_segment ( priv_data, segment );
150 /* if the symbol is externally visible, declare it so. */
151 if (visibility == visibility_external_visible)
152 obstack_printf(obst, ".globl\t%s\n", ld_name);
154 obstack_printf(obst, "\t.type\t%s,@object\n", ld_name);
155 obstack_printf(obst, "\t.size\t%s,%d\n", ld_name, bytes);
156 obstack_printf(obst, "\t.align\t%d\n", align);
157 obstack_printf(obst, "\t%s:\n", ld_name);
160 static void gnuasm_dump_declare_uninitialized_symbol(void *data, asm_segment_t segment, const char* ld_name, int bytes, int align, visibility visibility)
162 gnuasm_privdata_t *priv_data = data;
164 /* external symbols are not required to be declared in gnuasm. */
165 if(visibility == visibility_external_allocated) return;
167 /* declare local, uninitialized symbol to the uninit-obst */
168 obstack_printf(&priv_data->common_obst, "\t.comm\t%s,%d,%d\n", ld_name, bytes, align);
171 static void gnuasm_dump_zero_padding(void *data, asm_segment_t segment, int size)
173 gnuasm_privdata_t *privdata = data;
174 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
175 obstack_printf(obst, "\t.zero\t%d\n", size);
178 ////////////////////////////////////////////////////////////////////////////
180 static void gnuasm_dump_arith_op(void *data, asm_segment_t segment, asm_arith_operation_t op)
182 gnuasm_privdata_t *privdata = data;
183 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
185 case ASM_ARITH_OPERATION_ADD:
186 obstack_printf(obst, "+");
188 case ASM_ARITH_OPERATION_SUB:
189 obstack_printf(obst, "-");
191 case ASM_ARITH_OPERATION_MUL:
192 obstack_printf(obst, "*");
195 //obstack_printf(obst, "+");
198 static void gnuasm_dump_symconst(void *data, asm_segment_t segment, ir_node *init)
200 gnuasm_privdata_t *privdata = data;
201 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
202 switch (get_SymConst_kind(init)) {
203 case symconst_addr_name:
204 obstack_printf(obst, "%s", get_id_str(get_SymConst_name(init)));
207 case symconst_addr_ent:
208 obstack_printf(obst, "%s", get_entity_ld_name(get_SymConst_entity(init)));
212 obstack_printf(obst, "%d", get_type_size_bytes(get_SymConst_type(init)));
216 assert(0 && "dump_atomic_init(): don't know how to init from this SymConst");
220 static void gnuasm_dump_newline(void *data, asm_segment_t segment)
222 gnuasm_privdata_t *privdata = data;
223 struct obstack* obst = get_obstack_for_segment ( privdata, segment );
224 obstack_printf(obst, "\n");
227 //////////////////////////////////////////////////////////////////////////////
229 static void gnuasm_dump_header(void *data) {
230 /*gnuasm_privdata_t *privdata = data;*/
233 static void gnuasm_dump_footer(void *data) {
234 /*gnuasm_privdata_t *privdata = data;*/
237 static void gnuasm_dump_segment_header(void *data) {
238 /*gnuasm_privdata_t *privdata = data;*/
241 //////////////////////////////////////////////////////////////////////////////
243 assembler_t *gnuasm_create_assembler ( void ) {
245 gnuasm_privdata_t *priv_data = malloc ( sizeof(gnuasm_privdata_t ));
246 assembler_t *assembler = malloc ( sizeof( assembler_t ));
247 memset(assembler, 0, sizeof( assembler_t ));
248 assembler->private_data = priv_data;
250 obstack_init (&priv_data->common_obst);
251 obstack_init (&priv_data->data_obst);
252 obstack_init (&priv_data->rdata_obst);
253 obstack_init (&priv_data->code_obst);
256 assembler->dump_declare_uninitialized_symbol = gnuasm_dump_declare_uninitialized_symbol;
257 assembler->dump_declare_initialized_symbol = gnuasm_dump_declare_initialized_symbol;
259 // assembler->dump_align = (dump_align_proc) &gnuasm_dump_align;
260 assembler->dump_arith_tarval = gnuasm_dump_arith_tarval;
261 assembler->dump_atomic_decl = gnuasm_dump_atomic_decl;
262 assembler->dump_string = gnuasm_dump_string;
263 assembler->dump_zero_padding = gnuasm_dump_zero_padding;
264 assembler->dump_arith_op = gnuasm_dump_arith_op;
265 assembler->dump_symconst = gnuasm_dump_symconst;
266 assembler->dump_newline = gnuasm_dump_newline;
268 assembler->dump_header = gnuasm_dump_header;
269 assembler->dump_footer = gnuasm_dump_footer;
270 assembler->dump_segment_header = gnuasm_dump_segment_header;
277 static void gnuasm_dump_obst(struct obstack *obst, FILE *out) {
278 obstack_grow0 (obst, NULL, 0);
279 fprintf(out, "%s", (char *)obstack_finish(obst));
282 void gnuasm_dump( assembler_t *assembler, FILE *out ) {
284 gnuasm_privdata_t *privdata = assembler->private_data;
286 // fprintf(out, "<COMMON>\n");
287 gnuasm_dump_obst ( &privdata->common_obst, out);
288 fprintf(out, ".data\n");
289 gnuasm_dump_obst ( &privdata->data_obst, out);
290 fprintf(out, ".section .rodata\n");
291 gnuasm_dump_obst ( &privdata->rdata_obst, out);
292 fprintf(out, ".text\n");
293 gnuasm_dump_obst ( &privdata->code_obst, out);
297 void gnuasm_delete_assembler( assembler_t *assembler ) {
298 free( assembler->private_data );