-/*
- * mini-mips.c: MIPS backend for the Mono code generator
+/**
+ * \file
+ * MIPS backend for the Mono code generator
*
* Authors:
* Mark Mason (mason@broadcom.com)
static mono_mutex_t mini_arch_mutex;
int mono_exc_esp_offset = 0;
-static int tls_mode = TLS_MODE_DETECT;
-static int lmf_pthread_key = -1;
-static int monothread_key = -1;
/* Whenever the host is little-endian */
static int little_endian;
cfg->bb_exit->max_offset += 16; \
} while (0)
-
-#define emit_linuxthreads_tls(code,dreg,key) do {\
- int off1, off2; \
- off1 = offsets_from_pthread_key ((key), &off2); \
- g_assert_not_reached (); \
- ppc_lwz ((code), (dreg), off1, ppc_r2); \
- ppc_lwz ((code), (dreg), off2, (dreg)); \
- } while (0);
-
-
-#define emit_tls_access(code,dreg,key) do { \
- switch (tls_mode) { \
- case TLS_MODE_LTHREADS: emit_linuxthreads_tls(code,dreg,key); break; \
- default: g_assert_not_reached (); \
- } \
- } while (0)
-
#define MONO_EMIT_NEW_LOAD_R8(cfg,dr,addr) do { \
MonoInst *inst; \
MONO_INST_NEW ((cfg), (inst), OP_R8CONST); \
}
}
-#if 0
-static int
-offsets_from_pthread_key (guint32 key, int *offset2)
-{
- int idx1 = key / 32;
- int idx2 = key % 32;
- *offset2 = idx2 * sizeof (gpointer);
- return 284 + idx1 * sizeof (gpointer);
-}
-#endif
-
static void mono_arch_compute_omit_fp (MonoCompile *cfg);
const char*
mono_os_mutex_destroy (&mini_arch_mutex);
}
+gboolean
+mono_arch_have_fast_tls (void)
+{
+ return FALSE;
+}
+
/*
* This function returns the optimizations supported on this cpu.
*/
int tmp5 = -1;
switch (ins->opcode) {
-#if 0
- case OP_LCOMPARE:
- case OP_LCOMPARE_IMM:
- mono_print_ins (ins);
- g_assert_not_reached ();
-#endif
case OP_LADD:
tmp1 = mono_alloc_ireg (cfg);
MONO_EMIT_NEW_BIALU (cfg, OP_IADD, ins->dreg+1, ins->sreg1+1, ins->sreg2+1);
NULLIFY_INS(ins);
break;
- case OP_LMUL:
- case OP_LDIV:
- case OP_LDIV_UN:
- case OP_LREM:
- case OP_LREM_UN:
- case OP_LSHL:
- case OP_LSHR:
- case OP_LSHR_UN:
- mono_print_ins (ins);
- g_assert_not_reached ();
-
case OP_LNEG:
tmp1 = mono_alloc_ireg (cfg);
MONO_EMIT_NEW_BIALU (cfg, OP_ISUB, ins->dreg+1, mips_zero, ins->sreg1+1);
NULLIFY_INS(ins);
break;
-#if 0
- case OP_LNOT:
-#endif
-#if 0
- case OP_LCONV_TO_I1:
- case OP_LCONV_TO_I2:
- case OP_LCONV_TO_I4:
- case OP_LCONV_TO_I8:
- case OP_LCONV_TO_R4:
- case OP_LCONV_TO_R8:
- case OP_LCONV_TO_U4:
- case OP_LCONV_TO_U8:
- case OP_LCONV_TO_U2:
- case OP_LCONV_TO_U1:
- case OP_LCONV_TO_I:
- case OP_LCONV_TO_OVF_I:
- case OP_LCONV_TO_OVF_U:
-#endif
- mono_print_ins (ins);
- g_assert_not_reached ();
-
case OP_LADD_OVF:
tmp1 = mono_alloc_ireg (cfg);
tmp2 = mono_alloc_ireg (cfg);
NULLIFY_INS(ins);
break;
- case OP_LMUL_OVF:
- case OP_LMUL_OVF_UN:
- mono_print_ins (ins);
- g_assert_not_reached ();
-
case OP_LSUB_OVF:
tmp1 = mono_alloc_ireg (cfg);
tmp2 = mono_alloc_ireg (cfg);
MONO_EMIT_NEW_COMPARE_EXC (cfg, NE_UN, tmp2, mips_zero, "OverflowException");
NULLIFY_INS(ins);
break;
-#if 0
- case OP_LCONV_TO_OVF_I1_UN:
- case OP_LCONV_TO_OVF_I2_UN:
- case OP_LCONV_TO_OVF_I4_UN:
- case OP_LCONV_TO_OVF_I8_UN:
- case OP_LCONV_TO_OVF_U1_UN:
- case OP_LCONV_TO_OVF_U2_UN:
- case OP_LCONV_TO_OVF_U4_UN:
- case OP_LCONV_TO_OVF_U8_UN:
- case OP_LCONV_TO_OVF_I_UN:
- case OP_LCONV_TO_OVF_U_UN:
- case OP_LCONV_TO_OVF_I1:
- case OP_LCONV_TO_OVF_U1:
- case OP_LCONV_TO_OVF_I2:
- case OP_LCONV_TO_OVF_U2:
- case OP_LCONV_TO_OVF_I4:
- case OP_LCONV_TO_OVF_U4:
- case OP_LCONV_TO_OVF_I8:
- case OP_LCONV_TO_OVF_U8:
-#endif
- case OP_LCEQ:
- case OP_LCGT:
- case OP_LCGT_UN:
- case OP_LCLT:
- case OP_LCLT_UN:
-#if 0
- case OP_LCONV_TO_R_UN:
- case OP_LCONV_TO_U:
-#endif
- case OP_LMUL_IMM:
- case OP_LSHL_IMM:
- case OP_LSHR_IMM:
- case OP_LSHR_UN_IMM:
- case OP_LDIV_IMM:
- case OP_LDIV_UN_IMM:
- case OP_LREM_IMM:
- case OP_LREM_UN_IMM:
- case OP_LBEQ:
- case OP_LBGE:
- case OP_LBGT:
- case OP_LBLE:
- case OP_LBLT:
- case OP_LBNE_UN:
- case OP_LBGE_UN:
- case OP_LBGT_UN:
- case OP_LBLE_UN:
- case OP_LBLT_UN:
- mono_print_ins (ins);
- g_assert_not_reached ();
-#if 0
- case OP_LCONV_TO_R8_2:
- case OP_LCONV_TO_R4_2:
- case OP_LCONV_TO_R_UN_2:
-#endif
case OP_LCONV_TO_OVF_I4_2:
tmp1 = mono_alloc_ireg (cfg);
MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, ins->dreg, ins->sreg1);
NULLIFY_INS(ins);
break;
-
- case OP_LMIN_UN:
- case OP_LMAX_UN:
- case OP_LMIN:
- case OP_LMAX:
- mono_print_ins (ins);
- g_assert_not_reached ();
-
default:
break;
}
mips_nop (code);
break;
}
- case OP_TLS_GET:
- g_assert_not_reached();
-#if 0
- emit_tls_access (code, ins->dreg, ins->inst_offset);
-#endif
- break;
case OP_BIGMUL:
mips_mult (code, ins->sreg1, ins->sreg2);
mips_mflo (code, ins->dreg);
{
MonoJumpInfo *patch_info;
- mono_error_init (error);
+ error_init (error);
for (patch_info = ji; patch_info; patch_info = patch_info->next) {
unsigned char *ip = patch_info->ip.i + code;
mips_load_const (code, mips_at, MIPS_LMF_MAGIC1);
mips_sw (code, mips_at, mips_sp, lmf_offset + G_STRUCT_OFFSET(MonoLMF, magic));
- if (lmf_pthread_key != -1) {
- g_assert_not_reached();
-#if 0
- emit_tls_access (code, mips_temp, lmf_pthread_key);
-#endif
- if (G_STRUCT_OFFSET (MonoJitTlsData, lmf)) {
- int offset = G_STRUCT_OFFSET (MonoJitTlsData, lmf);
- g_assert (mips_is_imm16(offset));
- mips_addiu (code, mips_a0, mips_temp, offset);
- }
- } else {
- /* This can/will clobber the a0-a3 registers */
- mips_call (code, mips_t9, (gpointer)mono_get_lmf_addr);
- }
+ /* This can/will clobber the a0-a3 registers */
+ mips_call (code, mips_t9, (gpointer)mono_get_lmf_addr);
/* mips_v0 is the result from mono_get_lmf_addr () (MonoLMF **) */
g_assert (mips_is_imm16(lmf_offset + G_STRUCT_OFFSET(MonoLMF, lmf_addr)));
#endif
}
-/*
- * Thread local storage support
- */
-static void
-setup_tls_access (void)
-{
- guint32 ptk;
- //guint32 *ins, *code;
-
- if (tls_mode == TLS_MODE_FAILED)
- return;
-
- if (g_getenv ("MONO_NO_TLS")) {
- tls_mode = TLS_MODE_FAILED;
- return;
- }
-
- if (tls_mode == TLS_MODE_DETECT) {
- /* XXX */
- tls_mode = TLS_MODE_FAILED;
- return;
-#if 0
-
- ins = (guint32*)pthread_getspecific;
- /* uncond branch to the real method */
- if ((*ins >> 26) == 18) {
- gint32 val;
- val = (*ins & ~3) << 6;
- val >>= 6;
- if (*ins & 2) {
- /* absolute */
- ins = (guint32*)val;
- } else {
- ins = (guint32*) ((char*)ins + val);
- }
- }
- code = &cmplwi_1023;
- ppc_cmpli (code, 0, 0, ppc_r3, 1023);
- code = &li_0x48;
- ppc_li (code, ppc_r4, 0x48);
- code = &blr_ins;
- ppc_blr (code);
- if (*ins == cmplwi_1023) {
- int found_lwz_284 = 0;
- for (ptk = 0; ptk < 20; ++ptk) {
- ++ins;
- if (!*ins || *ins == blr_ins)
- break;
- if ((guint16)*ins == 284 && (*ins >> 26) == 32) {
- found_lwz_284 = 1;
- break;
- }
- }
- if (!found_lwz_284) {
- tls_mode = TLS_MODE_FAILED;
- return;
- }
- tls_mode = TLS_MODE_LTHREADS;
- } else if (*ins == li_0x48) {
- ++ins;
- /* uncond branch to the real method */
- if ((*ins >> 26) == 18) {
- gint32 val;
- val = (*ins & ~3) << 6;
- val >>= 6;
- if (*ins & 2) {
- /* absolute */
- ins = (guint32*)val;
- } else {
- ins = (guint32*) ((char*)ins + val);
- }
- code = &val;
- ppc_li (code, ppc_r0, 0x7FF2);
- if (ins [1] == val) {
- /* Darwin on G4, implement */
- tls_mode = TLS_MODE_FAILED;
- return;
- } else {
- code = &val;
- ppc_mfspr (code, ppc_r3, 104);
- if (ins [1] != val) {
- tls_mode = TLS_MODE_FAILED;
- return;
- }
- tls_mode = TLS_MODE_DARWIN_G5;
- }
- } else {
- tls_mode = TLS_MODE_FAILED;
- return;
- }
- } else {
- tls_mode = TLS_MODE_FAILED;
- return;
- }
-#endif
- }
- if (lmf_pthread_key == -1) {
- ptk = mono_jit_tls_id;
- if (ptk < 1024) {
- /*g_print ("MonoLMF at: %d\n", ptk);*/
- /*if (!try_offset_access (mono_get_lmf_addr (), ptk)) {
- init_tls_failed = 1;
- return;
- }*/
- lmf_pthread_key = ptk;
- }
- }
- if (monothread_key == -1) {
- ptk = mono_thread_get_tls_key ();
- if (ptk < 1024) {
- monothread_key = ptk;
- /*g_print ("thread inited: %d\n", ptk);*/
- } else {
- /*g_print ("thread not inited yet %d\n", ptk);*/
- }
- }
-}
-
void
mono_arch_finish_init (void)
{
- setup_tls_access ();
}
void
projects / mono.git / blobdiff