1 #ifndef __MONO_MINI_PPC_H__
2 #define __MONO_MINI_PPC_H__
4 #include <mono/arch/ppc/ppc-codegen.h>
7 #define MONO_ARCH_CPU_SPEC ppcg4
9 #define MONO_MAX_IREGS 32
10 #define MONO_MAX_FREGS 32
12 #define MONO_SAVED_GREGS 19
13 #define MONO_SAVED_FREGS 18
15 #define MONO_ARCH_FRAME_ALIGNMENT 4
17 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
18 * reproduceable results for benchmarks */
19 #define MONO_ARCH_CODE_ALIGNMENT 32
21 void ppc_patch (guchar *code, guchar *target);
24 gpointer previous_lmf;
29 gulong iregs [MONO_SAVED_GREGS]; /* 13..31 */
30 gdouble fregs [MONO_SAVED_FREGS]; /* 14..31 */
33 /* we define our own structure and we'll copy the data
34 * from sigcontext/ucontext/mach when we need it.
35 * This also makes us save stack space and time when copying
36 * We might also want to add an additional field to propagate
37 * the original context from the signal handler.
42 gulong regs [MONO_SAVED_GREGS];
43 double fregs [MONO_SAVED_FREGS];
46 typedef struct MonoCompileArch {
49 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
50 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
51 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
52 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
53 #define MONO_ARCH_EMULATE_FREM 1
54 #define MONO_ARCH_BIGMUL_INTRINS 1
55 //#define MONO_ARCH_ENABLE_EMIT_STATE_OPT 1
57 /* Parameters used by the register allocator */
58 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r11) | (1 << ppc_r12))
59 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
62 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
64 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
66 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
68 #define MONO_ARCH_USE_FPSTACK FALSE
69 #define MONO_ARCH_FPSTACK_SIZE 0
71 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l')? ppc_r4:\
72 ((desc) == 'g'? ppc_f1:-1))
73 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
75 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
76 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
77 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
79 /* deal with some of the ABI differences here */
81 #define PPC_RET_ADDR_OFFSET 8
82 #define PPC_STACK_ALIGNMENT 16
83 #define PPC_STACK_PARAM_OFFSET 24
84 #define PPC_MINIMAL_STACK_SIZE 24
85 #define PPC_FIRST_ARG_REG ppc_r3
86 #define PPC_LAST_ARG_REG ppc_r10
87 #define PPC_FIRST_FPARG_REG ppc_f1
88 #define PPC_LAST_FPARG_REG ppc_f13
89 #define PPC_PASS_STRUCTS_BY_VALUE 1
92 #define PPC_RET_ADDR_OFFSET 4
93 #define PPC_STACK_ALIGNMENT 16
94 #define PPC_STACK_PARAM_OFFSET 8
95 #define PPC_MINIMAL_STACK_SIZE 8
96 #define PPC_FIRST_ARG_REG ppc_r3
97 #define PPC_LAST_ARG_REG ppc_r10
98 #define PPC_FIRST_FPARG_REG ppc_f1
99 #define PPC_LAST_FPARG_REG ppc_f8
100 #define PPC_PASS_STRUCTS_BY_VALUE 0
101 #define PPC_SMALL_RET_STRUCT_IN_REG 1
105 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__)
106 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
107 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024)
108 #endif /* HAVE_WORKING_SIGALTSTACK */
110 #define MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
111 #define MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
112 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
113 #define MONO_ARCH_HAVE_IMT 1
114 #define MONO_ARCH_IMT_REG ppc_r12
115 #define MONO_ARCH_COMMON_VTABLE_TRAMPOLINE 1
117 #define MONO_ARCH_USE_SIGACTION 1
118 #define MONO_ARCH_NEED_DIV_CHECK 1
120 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
121 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
123 /* we have the stack pointer, not the base pointer in sigcontext */
124 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (int)ip; } while (0);
125 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (int)bp; } while (0);
127 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_ir))
128 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->sc_sp))
129 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_sp))
135 unsigned long unused1;
139 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do { \
140 MonoPPCStackFrame *sframe; \
141 __asm__ volatile("lwz %0,0(r1)" : "=r" (sframe)); \
142 MONO_CONTEXT_SET_BP ((ctx), sframe->sp); \
143 sframe = (MonoPPCStackFrame*)sframe->sp; \
144 MONO_CONTEXT_SET_IP ((ctx), sframe->lr); \
154 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \
155 MonoPPCStackFrame *sframe; \
156 __asm__ volatile("lwz %0,0(1)" : "=r" (sframe)); \
157 MONO_CONTEXT_SET_BP ((ctx), sframe->sp); \
158 sframe = (MonoPPCStackFrame*)sframe->sp; \
159 MONO_CONTEXT_SET_IP ((ctx), sframe->lr); \
164 #define mono_find_jit_info mono_arch_find_jit_info
165 #define CUSTOM_STACK_WALK 1
166 #define CUSTOM_EXCEPTION_HANDLING 1
175 #if defined(__linux__)
176 typedef struct ucontext os_ucontext;
178 #define UCONTEXT_REG_Rn(ctx, n) ((ctx)->uc_mcontext.uc_regs->gregs [(n)])
179 #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext.uc_regs->fpregs.fpregs [(n)])
180 #define UCONTEXT_REG_NIP(ctx) ((ctx)->uc_mcontext.uc_regs->gregs [PT_NIP])
181 #define UCONTEXT_REG_LNK(ctx) ((ctx)->uc_mcontext.uc_regs->gregs [PT_LNK])
182 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT)
183 typedef struct __darwin_ucontext os_ucontext;
185 #define UCONTEXT_REG_Rn(ctx, n) ((ctx)->uc_mcontext->__ss.__r##n)
186 #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext->__fs.__fpregs [(n)])
187 #define UCONTEXT_REG_NIP(ctx) ((ctx)->uc_mcontext->__ss.__srr0)
188 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT)
189 typedef struct ucontext os_ucontext;
191 #define UCONTEXT_REG_Rn(ctx, n) ((ctx)->uc_mcontext->ss.r##n)
192 #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext->fs.fpregs [(n)])
193 #define UCONTEXT_REG_NIP(ctx) ((ctx)->uc_mcontext->ss.srr0)
194 #elif defined(__NetBSD__)
195 typedef ucontext_t os_ucontext;
197 #define UCONTEXT_REG_Rn(ctx, n) ((ctx)->uc_mcontext.__gregs [(n)])
198 #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext.__fpregs.__fpu_regs [(n)])
199 #define UCONTEXT_REG_NIP(ctx) _UC_MACHINE_PC(ctx)
200 #define UCONTEXT_REG_LNK(ctx) ((ctx)->uc_mcontext.__gregs [_REG_LR])
205 #endif /* __MONO_MINI_PPC_H__ */