/** * \file */ #ifndef __MONO_MINI_PPC_H__ #define __MONO_MINI_PPC_H__ #include #include #include #include #include #ifdef __mono_ppc64__ #define MONO_ARCH_CPU_SPEC mono_ppc64_cpu_desc #else #define MONO_ARCH_CPU_SPEC mono_ppcg4 #endif #define MONO_MAX_IREGS 32 #define MONO_MAX_FREGS 32 #define MONO_SAVED_GREGS 19 #define MONO_SAVED_FREGS 18 #define MONO_PPC_FIRST_SAVED_GREG ppc_r13 #define MONO_PPC_FIRST_SAVED_FREG ppc_f14 #define MONO_ARCH_FRAME_ALIGNMENT 16 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get * reproduceable results for benchmarks */ #define MONO_ARCH_CODE_ALIGNMENT 32 void ppc_patch (guchar *code, const guchar *target); void ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd); struct MonoLMF { /* * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and * the other fields are not valid. */ gpointer previous_lmf; gpointer lmf_addr; MonoMethod *method; gulong ebp; gulong eip; /* Add a dummy field to force iregs to be aligned when cross compiling from x86 */ gulong dummy; mgreg_t iregs [MONO_SAVED_GREGS]; /* 13..31 */ gdouble fregs [MONO_SAVED_FREGS]; /* 14..31 */ }; typedef struct MonoCompileArch { int fp_conv_var_offset; } MonoCompileArch; /* * ILP32 uses a version of the ppc64 abi with sizeof(void*)==sizeof(long)==4. * To support this, code needs to follow the following conventions: * - for the size of a pointer use sizeof (gpointer) * - for the size of a register/stack slot use SIZEOF_REGISTER. * - for variables which contain values of registers, use mgreg_t. * - for loading/saving pointers/ints, use the normal ppc_load_reg/ppc_save_reg () * macros. * - for loading/saving register sized quantities, use the ppc_ldr/ppc_str * macros. * - make sure to not mix the two kinds of macros for the same memory location, * since ppc is big endian, so a 8 byte store followed by a 4 byte load will * load the upper 32 bit of the value. * - use OP_LOADR_MEMBASE/OP_STORER_MEMBASE to load/store register sized * quantities. */ #ifdef __mono_ppc64__ #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS /* ELFv2 ABI doesn't use function descriptors. */ #if _CALL_ELF == 2 #undef PPC_USES_FUNCTION_DESCRIPTOR #else #define PPC_USES_FUNCTION_DESCRIPTOR #endif #else /* must be __mono_ppc__ */ #define MONO_ARCH_EMULATE_FCONV_TO_I8 1 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1 #endif #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1 #define MONO_ARCH_EMULATE_FREM 1 #define MONO_ARCH_GC_MAPS_SUPPORTED 1 /* Parameters used by the register allocator */ #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r12) | (1 << ppc_r11)) #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */ #if defined(__APPLE__) || defined(__mono_ppc64__) #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1) #else #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1) #endif #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1)) #define MONO_ARCH_USE_FPSTACK FALSE #define MONO_ARCH_FPSTACK_SIZE 0 #ifdef __mono_ppc64__ #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\ ((desc) == 'g'? ppc_f1:-1)) #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1) #else #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\ ((desc) == 'l')? ppc_r4:\ ((desc) == 'g'? ppc_f1:-1)) #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l') #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1) #endif #define MONO_ARCH_INST_SREG2_MASK(ins) (0) #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g')) /* deal with some of the ABI differences here */ #ifdef __APPLE__ #define PPC_RET_ADDR_OFFSET 8 #define PPC_STACK_PARAM_OFFSET 24 #define PPC_MINIMAL_STACK_SIZE 24 #define PPC_MINIMAL_PARAM_AREA_SIZE 0 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0 #define PPC_FIRST_ARG_REG ppc_r3 #define PPC_LAST_ARG_REG ppc_r10 #define PPC_FIRST_FPARG_REG ppc_f1 #define PPC_LAST_FPARG_REG ppc_f13 #define PPC_PASS_STRUCTS_BY_VALUE 1 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0 #else /* Linux */ #ifdef __mono_ppc64__ #define PPC_RET_ADDR_OFFSET 16 // Power LE abvi2 #if (_CALL_ELF == 2) #define PPC_STACK_PARAM_OFFSET 32 #define PPC_MINIMAL_STACK_SIZE 32 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 16 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 8 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 1 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 1 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 1 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 1 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 1 // Define "DEBUG_ELFABIV2" to allow for debugging output for ELF ABI v2 function call and return codegen // #define DEBUG_ELFABIV2 #define MONO_ARCH_LLVM_SUPPORTED 1 #else #define PPC_STACK_PARAM_OFFSET 48 #define PPC_MINIMAL_STACK_SIZE 48 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0 #endif #define MONO_ARCH_HAVE_SETUP_ASYNC_CALLBACK 1 #define PPC_MINIMAL_PARAM_AREA_SIZE 64 #define PPC_LAST_FPARG_REG ppc_f13 #define PPC_PASS_STRUCTS_BY_VALUE 1 #define PPC_THREAD_PTR_REG ppc_r13 #else #define PPC_RET_ADDR_OFFSET 4 #define PPC_STACK_PARAM_OFFSET 8 #define PPC_MINIMAL_STACK_SIZE 8 #define PPC_MINIMAL_PARAM_AREA_SIZE 0 #define PPC_LAST_FPARG_REG ppc_f8 #define PPC_PASS_STRUCTS_BY_VALUE 0 #define PPC_LARGEST_STRUCT_SIZE_TO_RETURN_VIA_REGISTERS 0 #define PPC_MOST_FLOAT_STRUCT_MEMBERS_TO_RETURN_VIA_REGISTERS 0 #define PPC_PASS_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0 #define PPC_RETURN_SMALL_FLOAT_STRUCTS_IN_FR_REGS 0 #define PPC_RETURN_SMALL_STRUCTS_IN_REGS 0 #define MONO_ARCH_HAVE_DECOMPOSE_VTYPE_OPTS 0 #define MONO_ARCH_RETURN_CAN_USE_MULTIPLE_REGISTERS 0 #define PPC_THREAD_PTR_REG ppc_r2 #endif #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX 1 #define PPC_FIRST_ARG_REG ppc_r3 #define PPC_LAST_ARG_REG ppc_r10 #define PPC_FIRST_FPARG_REG ppc_f1 #endif #define PPC_CALL_REG ppc_r12 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__) #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024) #endif /* HAVE_WORKING_SIGALTSTACK */ #define MONO_ARCH_IMT_REG ppc_r11 #define MONO_ARCH_VTABLE_REG ppc_r11 #define MONO_ARCH_RGCTX_REG MONO_ARCH_IMT_REG #define MONO_ARCH_NO_IOV_CHECK 1 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1 #define MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE 1 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1 #define MONO_ARCH_GSHARED_SUPPORTED 1 #define MONO_ARCH_NEED_DIV_CHECK 1 #define MONO_ARCH_AOT_SUPPORTED 1 #define MONO_ARCH_NEED_GOT_VAR 1 #if !defined(MONO_CROSS_COMPILE) && !defined(TARGET_PS3) #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1 #endif #define MONO_ARCH_HAVE_OP_TAIL_CALL 1 #define MONO_ARCH_HAVE_INIT_LMF_EXT 1 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1) #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1) #ifdef MONO_CROSS_COMPILE typedef struct { unsigned long sp; unsigned long unused1; unsigned long lr; } MonoPPCStackFrame; #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) g_assert_not_reached () #elif defined(__APPLE__) typedef struct { unsigned long sp; unsigned long unused1; unsigned long lr; } MonoPPCStackFrame; #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \ gpointer r1; \ __asm__ volatile("mr %0,r1" : "=r" (r1)); \ MONO_CONTEXT_SET_BP ((ctx), r1); \ MONO_CONTEXT_SET_IP ((ctx), (start_func)); \ } while (0) #else typedef struct { mgreg_t sp; #ifdef __mono_ppc64__ mgreg_t cr; #endif mgreg_t lr; } MonoPPCStackFrame; #ifdef G_COMPILER_CODEWARRIOR #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \ register gpointer r1_var; \ asm { mr r1_var, r1 }; \ MONO_CONTEXT_SET_BP ((ctx), r1); \ MONO_CONTEXT_SET_IP ((ctx), (start_func)); \ } while (0) #else #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \ gpointer r1; \ __asm__ volatile("mr %0,1" : "=r" (r1)); \ MONO_CONTEXT_SET_BP ((ctx), r1); \ MONO_CONTEXT_SET_IP ((ctx), (start_func)); \ } while (0) #endif #endif #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0) typedef struct { gint8 reg; gint8 size; int vtsize; int offset; } MonoPPCArgInfo; #ifdef PPC_USES_FUNCTION_DESCRIPTOR typedef struct { gpointer code; gpointer toc; gpointer env; } MonoPPCFunctionDescriptor; #define PPC_FTNPTR_SIZE sizeof (MonoPPCFunctionDescriptor) extern guint8* mono_ppc_create_pre_code_ftnptr (guint8 *code); #else #define PPC_FTNPTR_SIZE 0 #define mono_ppc_create_pre_code_ftnptr(c) c #endif #if defined(__linux__) #define MONO_ARCH_USE_SIGACTION 1 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT) #define MONO_ARCH_USE_SIGACTION 1 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT) #define MONO_ARCH_USE_SIGACTION 1 #elif defined(__NetBSD__) #define MONO_ARCH_USE_SIGACTION 1 #elif defined(__FreeBSD__) #define MONO_ARCH_USE_SIGACTION 1 #elif defined(MONO_CROSS_COMPILE) typedef MonoContext ucontext_t; /* typedef struct { int dummy; } ucontext_t;*/ #define UCONTEXT_REG_Rn(ctx, n) #define UCONTEXT_REG_FPRn(ctx, n) #define UCONTEXT_REG_NIP(ctx) #define UCONTEXT_REG_LNK(ctx) #else /* For other operating systems, we pull the definition from an external file */ #include "mini-ppc-os.h" #endif gboolean mono_ppc_tail_call_supported (MonoMethodSignature *caller_sig, MonoMethodSignature *callee_sig); void mono_ppc_patch (guchar *code, const guchar *target); void mono_ppc_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, mgreg_t *int_regs, gdouble *fp_regs, gboolean rethrow); #ifdef __mono_ppc64__ #define MONO_PPC_32_64_CASE(c32,c64) c64 extern void mono_ppc_emitted (guint8 *code, gint64 length, const char *format, ...); #else #define MONO_PPC_32_64_CASE(c32,c64) c32 #endif gboolean mono_ppc_is_direct_call_sequence (guint32 *code); void mono_ppc_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr); void mono_ppc_set_func_into_sigctx (void *sigctx, void *func); // Debugging macros for ELF ABI v2 #ifdef DEBUG_ELFABIV2 #define DEBUG_ELFABIV2_printf(a, ...) \ {char *debug_env; if (debug_env = getenv("DEBUG_ELFABIV2")) { printf(a, ##__VA_ARGS__); fflush(stdout); g_free (debug_env); } } #define DEBUG_ELFABIV2_mono_print_ins(a) \ {char *debug_env; if (debug_env = getenv("DEBUG_ELFABIV2")) { if (!a) {printf("null\n");} else {mono_print_ins(a);} fflush(stdout); g_free (debug_env); } } extern char* mono_type_full_name (MonoType *type); #define DEBUG_ELFABIV2_mono_print_type(a) \ {char *debug_env; if (debug_env = getenv("DEBUG_ELFABIV2")) { printf("%s, size: %d\n", mono_type_get_name(a), mini_type_stack_size (a, 0)); fflush(stdout); g_free (debug_env); } } #define DEBUG_ELFABIV2_mono_print_class(a) \ {char *debug_env; if (debug_env = getenv("DEBUG_ELFABIV2")) { printf("%s\n", mono_type_get_name(&a->byval_arg)); fflush(stdout); g_free (debug_env); } } #else #define DEBUG_ELFABIV2_printf(a, ...) #define DEBUG_ELFABIV2_mono_print_ins(a) #define DEBUG_ELFABIV2_mono_print_type(a) #define DEBUG_ELFABIV2_mono_print_class(a) #endif #endif /* __MONO_MINI_PPC_H__ */