1 #ifndef __MONO_MINI_PPC_H__
2 #define __MONO_MINI_PPC_H__
4 #include <mono/arch/ppc/ppc-codegen.h>
5 #include <mono/utils/mono-sigcontext.h>
6 #include <mono/utils/mono-context.h>
10 #define MONO_ARCH_CPU_SPEC ppc64_cpu_desc
12 #define MONO_ARCH_CPU_SPEC ppcg4
15 #define MONO_MAX_IREGS 32
16 #define MONO_MAX_FREGS 32
18 #define MONO_SAVED_GREGS 19
19 #define MONO_SAVED_FREGS 18
21 #define MONO_ARCH_FRAME_ALIGNMENT 16
23 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
24 * reproduceable results for benchmarks */
25 #define MONO_ARCH_CODE_ALIGNMENT 32
27 void ppc_patch (guchar *code, const guchar *target);
28 void ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd);
32 * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
33 * the other fields are not valid.
35 gpointer previous_lmf;
40 /* Add a dummy field to force iregs to be aligned when cross compiling from x86 */
42 mgreg_t iregs [MONO_SAVED_GREGS]; /* 13..31 */
43 gdouble fregs [MONO_SAVED_FREGS]; /* 14..31 */
47 typedef struct MonoCompileArch {
48 int fp_conv_var_offset;
52 * ILP32 uses a version of the ppc64 abi with sizeof(void*)==sizeof(long)==4.
53 * To support this, code needs to follow the following conventions:
54 * - for the size of a pointer use sizeof (gpointer)
55 * - for the size of a register/stack slot use SIZEOF_REGISTER.
56 * - for variables which contain values of registers, use mgreg_t.
57 * - for loading/saving pointers/ints, use the normal ppc_load_reg/ppc_save_reg ()
59 * - for loading/saving register sized quantities, use the ppc_ldr/ppc_str
61 * - make sure to not mix the two kinds of macros for the same memory location,
62 * since ppc is big endian, so a 8 byte store followed by a 4 byte load will
63 * load the upper 32 bit of the value.
64 * - use OP_LOADR_MEMBASE/OP_STORER_MEMBASE to load/store register sized
69 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
70 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
72 /* ELFv2 ABI doesn't use function descriptors. */
74 #undef PPC_USES_FUNCTION_DESCRIPTOR
76 #define PPC_USES_FUNCTION_DESCRIPTOR
79 #ifndef __mono_ilp32__
80 #define MONO_ARCH_HAVE_TLS_GET 1
81 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
84 #else /* must be __mono_ppc__ */
87 /* enabling this for PPC32 causes hangs in the thread/delegate tests.
88 So disable for now. */
89 #if defined(__linux__)
90 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
94 #define MONO_ARCH_HAVE_TLS_GET 1
95 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
96 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
97 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
100 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
101 #define MONO_ARCH_EMULATE_FREM 1
102 #define MONO_ARCH_BIGMUL_INTRINS 1
103 #define MONO_ARCH_GC_MAPS_SUPPORTED 1
105 /* Parameters used by the register allocator */
106 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r12) | (1 << ppc_r11))
107 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
109 #if defined(__APPLE__) || defined(__mono_ppc64__)
110 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
112 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
114 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
116 #define MONO_ARCH_USE_FPSTACK FALSE
117 #define MONO_ARCH_FPSTACK_SIZE 0
119 #ifdef __mono_ppc64__
120 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
121 ((desc) == 'g'? ppc_f1:-1))
122 #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE
123 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1)
125 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
126 ((desc) == 'l')? ppc_r4:\
127 ((desc) == 'g'? ppc_f1:-1))
128 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
129 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
132 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
134 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
136 /* deal with some of the ABI differences here */
138 #define PPC_RET_ADDR_OFFSET 8
139 #define PPC_STACK_PARAM_OFFSET 24
140 #define PPC_MINIMAL_STACK_SIZE 24
141 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
142 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0
143 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0
144 #define PPC_FIRST_ARG_REG ppc_r3
145 #define PPC_LAST_ARG_REG ppc_r10
146 #define PPC_FIRST_FPARG_REG ppc_f1
147 #define PPC_LAST_FPARG_REG ppc_f13
148 #define PPC_PASS_STRUCTS_BY_VALUE 1
149 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
150 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
151 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0
152 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0
153 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0
156 #ifdef __mono_ppc64__
157 #define PPC_RET_ADDR_OFFSET 16
158 // PowerPC64 ELFv2 ABI
160 #define PPC_STACK_PARAM_OFFSET 32
161 #define PPC_MINIMAL_STACK_SIZE 32
162 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 16
163 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 8
164 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 1
165 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 1
166 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 1
167 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 1
168 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 1
169 // FIXME: To get the test case finally_block_ending_in_dead_bb to work properly we need to define the following
170 // and then implement the fuction mono_arch_create_handler_block_trampoline.
171 // #define MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD 1
172 // #define DEBUG_ELFABIV2
174 #define PPC_MINIMAL_STACK_SIZE 48
175 #define PPC_STACK_PARAM_OFFSET 48
176 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0
177 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0
178 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
179 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
180 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0
181 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0
182 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0
184 #define PPC_MINIMAL_PARAM_AREA_SIZE 64
185 #define PPC_LAST_FPARG_REG ppc_f13
186 #define PPC_PASS_STRUCTS_BY_VALUE 1
187 #define PPC_THREAD_PTR_REG ppc_r13
189 #define PPC_RET_ADDR_OFFSET 4
190 #define PPC_STACK_PARAM_OFFSET 8
191 #define PPC_MINIMAL_STACK_SIZE 8
192 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
193 #define PPC_LAST_FPARG_REG ppc_f8
194 #define PPC_PASS_STRUCTS_BY_VALUE 0
195 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0
196 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0
197 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
198 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0
199 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0
200 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0
201 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0
202 #define PPC_THREAD_PTR_REG ppc_r2
204 #define PPC_FIRST_ARG_REG ppc_r3
205 #define PPC_LAST_ARG_REG ppc_r10
206 #define PPC_FIRST_FPARG_REG ppc_f1
209 #define PPC_CALL_REG ppc_r12
211 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__)
212 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
213 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024)
214 #endif /* HAVE_WORKING_SIGALTSTACK */
216 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
217 #define MONO_ARCH_IMT_REG ppc_r11
219 #define MONO_ARCH_VTABLE_REG ppc_r11
220 #define MONO_ARCH_RGCTX_REG MONO_ARCH_IMT_REG
222 #define MONO_ARCH_NO_IOV_CHECK 1
223 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
224 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
226 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
228 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
230 #define MONO_ARCH_GSHARED_SUPPORTED 1
232 #define MONO_ARCH_NEED_DIV_CHECK 1
233 #define MONO_ARCH_AOT_SUPPORTED 1
234 #define MONO_ARCH_NEED_GOT_VAR 1
235 #if !defined(MONO_CROSS_COMPILE) && !defined(TARGET_PS3)
236 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
238 #define MONO_ARCH_HAVE_OP_TAIL_CALL 1
240 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
241 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
243 #ifdef MONO_CROSS_COMPILE
247 unsigned long unused1;
251 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) g_assert_not_reached ()
253 #elif defined(__APPLE__)
257 unsigned long unused1;
261 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
263 __asm__ volatile("mr %0,r1" : "=r" (r1)); \
264 MONO_CONTEXT_SET_BP ((ctx), r1); \
265 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
272 #ifdef __mono_ppc64__
278 #ifdef G_COMPILER_CODEWARRIOR
279 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
280 register gpointer r1_var; \
281 asm { mr r1_var, r1 }; \
282 MONO_CONTEXT_SET_BP ((ctx), r1); \
283 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
287 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
289 __asm__ volatile("mr %0,1" : "=r" (r1)); \
290 MONO_CONTEXT_SET_BP ((ctx), r1); \
291 MONO_CONTEXT_SET_IP ((ctx), (start_func)); \
297 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
306 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
311 } MonoPPCFunctionDescriptor;
313 #define PPC_FTNPTR_SIZE sizeof (MonoPPCFunctionDescriptor)
314 extern guint8* mono_ppc_create_pre_code_ftnptr (guint8 *code) MONO_INTERNAL;
316 #define PPC_FTNPTR_SIZE 0
317 #define mono_ppc_create_pre_code_ftnptr(c) c
320 #if defined(__linux__)
321 #define MONO_ARCH_USE_SIGACTION 1
322 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT)
323 #define MONO_ARCH_USE_SIGACTION 1
324 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT)
325 #define MONO_ARCH_USE_SIGACTION 1
326 #elif defined(__NetBSD__)
327 #define MONO_ARCH_USE_SIGACTION 1
328 #elif defined(__FreeBSD__)
329 #define MONO_ARCH_USE_SIGACTION 1
330 #elif defined(MONO_CROSS_COMPILE)
331 typedef MonoContext ucontext_t;
335 #define UCONTEXT_REG_Rn(ctx, n)
336 #define UCONTEXT_REG_FPRn(ctx, n)
337 #define UCONTEXT_REG_NIP(ctx)
338 #define UCONTEXT_REG_LNK(ctx)
341 /* For other operating systems, we pull the definition from an external file */
342 #include "mini-ppc-os.h"
346 mono_ppc_tail_call_supported (MonoMethodSignature *caller_sig, MonoMethodSignature *callee_sig) MONO_INTERNAL;
349 mono_ppc_patch (guchar *code, const guchar *target) MONO_INTERNAL;
352 mono_ppc_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, mgreg_t *int_regs, gdouble *fp_regs, gboolean rethrow) MONO_INTERNAL;
354 #ifdef __mono_ppc64__
355 #define MONO_PPC_32_64_CASE(c32,c64) c64
356 extern void mono_ppc_emitted (guint8 *code, gint64 length, const char *format, ...);
358 #define MONO_PPC_32_64_CASE(c32,c64) c32
361 gboolean mono_ppc_is_direct_call_sequence (guint32 *code) MONO_INTERNAL;
363 void mono_ppc_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr) MONO_INTERNAL;
365 void mono_ppc_set_func_into_sigctx (void *sigctx, void *func) MONO_INTERNAL;
368 #if PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS
369 gboolean is_float_struct_returnable_via_regs (MonoClass *klass);
371 #define is_float_struct_returnable_via_regs(a) (FALSE)
374 #if PPC_RETURN_SMALL_STRUCTS_IN_REGS
375 gboolean is_struct_returnable_via_regs (MonoClass *klass, gboolean is_pinvoke);
377 #define is_struct_returnable_via_regs(a,b) (FALSE)
380 gint member_count (MonoClass *klass);
381 gint float_member_size (MonoClass *klass);
384 #if PPC_RETURN_SMALL_STRUCTS_IN_REGS
385 // If the value is being returned via registers we don't need to allocate a temporary variable for it.
386 gboolean function_return_value_requires_temporary (MonoMethodSignature *sig);
388 #define function_return_value_requires_temporary(a) (TRUE)
391 // Debugging macros for ELF ABI v2
392 #ifdef DEBUG_ELFABIV2
394 #define DEBUG_ELFABIV2_printf(a, ...) \
395 {if (getenv("DEBUG_ELFABIV2")) { printf(a, ##__VA_ARGS__); fflush(stdout); } }
397 #define DEBUG_ELFABIV2_mono_print_ins(a) \
398 {if (getenv("DEBUG_ELFABIV2")) { if (!a) {printf("null\n");} else {mono_print_ins(a);} fflush(stdout); } }
400 extern char* mono_type_full_name (MonoType *type);
402 #define DEBUG_ELFABIV2_mono_print_type(a) \
403 {if (getenv("DEBUG_ELFABIV2")) { printf("%s, size: %d\n", mono_type_get_name(&a->klass->byval_arg), mini_type_stack_size (NULL, a, 0)); fflush(stdout); } }
405 #define DEBUG_ELFABIV2_mono_print_klass(a) \
406 {if (getenv("DEBUG_ELFABIV2")) { printf("%s\n", mono_type_get_name(&a->byval_arg)); fflush(stdout); } }
410 #define DEBUG_ELFABIV2_printf(a, ...)
411 #define DEBUG_ELFABIV2_mono_print_ins(a)
412 #define DEBUG_ELFABIV2_mono_print_type(a)
413 #define DEBUG_ELFABIV2_mono_print_klass(a)
418 #endif /* __MONO_MINI_PPC_H__ */