#define s390_clgr(c, r1, r2) S390_RRE(c, 0xb921, r1, r2)
#define s390_clgrj(c, r1, r2, m, v) S390_RIE_2(c, 0xec65, r1, r2, m, v)
#define s390_clgrb(c, r1, r2, m3, b, d) S390_RRS(c, 0xece5, r1, r2, m3, b, d)
+#define s390_cli(c, b, d, v) S390_SI(c, 0x95, b, d, v)
#define s390_clib(c, r, i, m, b, d) S390_RIS(c, 0xecff, r, i, m, b, d)
#define s390_clij(c, r, i, b) S390_RIE_3(c, 0xec7f, r, i, m, d)
#define s390_clr(c, r1, r2) S390_RR(c, 0x15, r1, r2)
#define s390_mvc(c, l, b1, d1, b2, d2) S390_SS_1(c, 0xd2, l, b1, d1, b2, d2)
#define s390_mvcl(c, r1, r2) S390_RR(c, 0x0e, r1, r2)
#define s390_mvcle(c, r1, r3, d2, b2) S390_RS_1(c, 0xa8, r1, r3, d2, b2)
+#define s390_mvi(c, b, d, v) S390_SI(c, 0x92, b, d, v)
#define s390_n(c, r, x, b, d) S390_RX(c, 0x54, r, x, b, d)
#define s390_nc(c, l, b1, d1, b2, d2) S390_SS_1(c, 0xd4, l, b1, d1, b2, d2)
#define s390_ng(c, r, x, b, d) S390_RXY(c, 0xe380, r, x, b, d)
#define s390_sty(c, r, x, b, d) S390_RXY(c, 0xe350, r, x, b, d)
#define s390_tcdb(c, r, x, b, d) S390_RXE(c, 0xed11, r, x, b, d)
#define s390_tceb(c, r, x, b, d) S390_RXE(c, 0xed10, r, x, b, d)
+#define s390_tmhh(c, r, m) S390_RI(c, 0xa73, r, m)
+#define s390_tmhl(c, r, m) S390_RI(c, 0xa72, r, m)
+#define s390_tmlh(c, r, m) S390_RI(c, 0xa70, r, m)
+#define s390_tmll(c, r, m) S390_RI(c, 0xa71, r, m)
#define s390_x(c, r, x, b, d) S390_RX(c, 0x57, r, x, b, d)
#define s390_xihf(c, r, v) S390_RIL_1(c, 0xc06, r, v)
#define s390_xilf(c, r, v) S390_RIL_1(c, 0xc07, r, v)
#include <mono/metadata/abi-details.h>
#include <mono/metadata/appdomain.h>
+#include <mono/metadata/gc-internal.h>
#include <mono/metadata/marshal.h>
-#include <mono/metadata/tabledefs.h>
+#include <mono/metadata/monitor.h>
#include <mono/metadata/profiler-private.h>
+#include <mono/metadata/tabledefs.h>
#include <mono/arch/s390x/s390x-codegen.h>
#include "mini.h"
else
s390_lg (buf, s390_r4, 0, STK_BASE, METHOD_SAVE_OFFSET);
- /* Arg 4: trampoline address. Ignore for now */
+ /* Arg 4: trampoline address. */
+ S390_SET (buf, s390_r5, buf);
/* Calculate call address and call the C trampoline. Return value will be in r2 */
tramp = (guint8*)mono_get_trampoline_func (tramp_type);
/*----------------------------------------------------------*/
code = buf = mono_domain_code_reserve (domain, SPECIFIC_TRAMPOLINE_SIZE);
- S390_SET (buf, s390_r1, arg1);
+ switch (tramp_type) {
+ /*
+ * Monitor tramps have the object in r2
+ */
+ case MONO_TRAMPOLINE_MONITOR_ENTER:
+ case MONO_TRAMPOLINE_MONITOR_ENTER_V4:
+ case MONO_TRAMPOLINE_MONITOR_EXIT:
+ s390_lgr (buf, s390_r1, s390_r2);
+ break;
+ default :
+ S390_SET (buf, s390_r1, arg1);
+ }
displace = (tramp - buf) / 2;
s390_jg (buf, displace);
}
/*========================= End of Function ========================*/
+
+#ifdef MONO_ARCH_MONITOR_OBJECT_REG
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_create_monitor_enter_trampoline */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
+gpointer
+mono_arch_create_monitor_enter_trampoline (MonoTrampInfo **info, gboolean is_v4, gboolean aot)
+{
+ guint8 *tramp,
+ *code, *buf;
+ gint16 *jump_obj_null,
+ *jump_sync_null,
+ *jump_cs_failed,
+ *jump_other_owner,
+ *jump_tid,
+ *jump_sync_thin_hash = NULL,
+ *jump_lock_taken_true = NULL;
+ int tramp_size,
+ status_reg = s390_r0,
+ lock_taken_reg = s390_r1,
+ obj_reg = s390_r2,
+ sync_reg = s390_r3,
+ tid_reg = s390_r4,
+ status_offset,
+ nest_offset;
+ MonoJumpInfo *ji = NULL;
+ GSList *unwind_ops = NULL;
+
+ g_assert (MONO_ARCH_MONITOR_OBJECT_REG == obj_reg);
+#ifdef MONO_ARCH_MONITOR_LOCK_TAKEN_REG
+ g_assert (MONO_ARCH_MONITOR_LOCK_TAKEN_REG == lock_taken_reg);
+#else
+ g_assert (!is_v4);
+#endif
+
+ mono_monitor_threads_sync_members_offset (&status_offset, &nest_offset);
+ g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (status_offset) == sizeof (guint32));
+ g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (nest_offset) == sizeof (guint32));
+ status_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (status_offset);
+ nest_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (nest_offset);
+
+ tramp_size = 160;
+
+ code = buf = mono_global_codeman_reserve (tramp_size);
+
+ unwind_ops = mono_arch_get_cie_program ();
+
+ if (mono_thread_get_tls_offset () != -1) {
+ /* MonoObject* obj is in obj_reg */
+ /* is obj null? */
+ s390_ltgr (code, obj_reg, obj_reg);
+ /* if yes, jump to actual trampoline */
+ s390_jz (code, 0); CODEPTR(code, jump_obj_null);
+
+ if (is_v4) {
+ s390_cli (code, lock_taken_reg, 0, 1);
+ /* if *lock_taken is 1, jump to actual trampoline */
+ s390_je (code, 0); CODEPTR(code, jump_lock_taken_true);
+ }
+
+ /* load obj->synchronization to sync_reg */
+ s390_lg (code, sync_reg, 0, obj_reg, MONO_STRUCT_OFFSET (MonoObject, synchronisation));
+
+ if (mono_gc_is_moving ()) {
+ /*if bit zero is set it's a thin hash*/
+ s390_tmll (code, sync_reg, 1);
+ s390_jo (code, 0); CODEPTR(code, jump_sync_thin_hash);
+
+ /* Clear bits used by the gc */
+ s390_nill (code, sync_reg, ~0x3);
+ }
+
+ /* is synchronization null? */
+ s390_ltgr (code, sync_reg, sync_reg);
+ /* if yes, jump to actual trampoline */
+ s390_jz (code, 0); CODEPTR(code, jump_sync_null);
+
+ /* load MonoInternalThread* into tid_reg */
+ s390_ear (code, s390_r5, 0);
+ s390_sllg(code, s390_r5, s390_r5, 0, 32);
+ s390_ear (code, s390_r5, 1);
+ /* load tid */
+ s390_lg (code, tid_reg, 0, s390_r5, mono_thread_get_tls_offset ());
+ s390_lgf (code, tid_reg, 0, tid_reg, MONO_STRUCT_OFFSET (MonoInternalThread, small_id));
+
+ /* is synchronization->owner free */
+ s390_lgf (code, status_reg, 0, sync_reg, status_offset);
+ s390_nilf (code, status_reg, OWNER_MASK);
+ /* if not, jump to next case */
+ s390_jnz (code, 0); CODEPTR(code, jump_tid);
+
+ /* if yes, try a compare-exchange with the TID */
+ /* Form new status in tid_reg */
+ s390_xr (code, tid_reg, status_reg);
+ /* compare and exchange */
+ s390_cs (code, status_reg, tid_reg, sync_reg, status_offset);
+ s390_jnz (code, 0); CODEPTR(code, jump_cs_failed);
+ /* if successful, return */
+ if (is_v4)
+ s390_mvi (code, lock_taken_reg, 0, 1);
+ s390_br (code, s390_r14);
+
+ /* next case: synchronization->owner is not null */
+ PTRSLOT(code, jump_tid);
+ /* is synchronization->owner == TID? */
+ s390_nilf (code, status_reg, OWNER_MASK);
+ s390_cr (code, status_reg, tid_reg);
+ /* if not, jump to actual trampoline */
+ s390_jnz (code, 0); CODEPTR(code, jump_other_owner);
+ /* if yes, increment nest */
+ s390_lgf (code, s390_r5, 0, sync_reg, nest_offset);
+ s390_ahi (code, s390_r5, 1);
+ s390_st (code, s390_r5, 0, sync_reg, nest_offset);
+ /* return */
+ if (is_v4)
+ s390_mvi (code, lock_taken_reg, 0, 1);
+ s390_br (code, s390_r14);
+
+ PTRSLOT (code, jump_obj_null);
+ if (jump_sync_thin_hash)
+ PTRSLOT (code, jump_sync_thin_hash);
+ PTRSLOT (code, jump_sync_null);
+ PTRSLOT (code, jump_cs_failed);
+ PTRSLOT (code, jump_other_owner);
+ if (is_v4)
+ PTRSLOT (code, jump_lock_taken_true);
+ }
+
+ /* jump to the actual trampoline */
+ if (is_v4)
+ tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER_V4, mono_get_root_domain (), NULL);
+ else
+ tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
+
+ /* jump to the actual trampoline */
+ S390_SET (code, s390_r1, tramp);
+ s390_br (code, s390_r1);
+
+ mono_arch_flush_icache (code, code - buf);
+ mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_MONITOR, NULL);
+ g_assert (code - buf <= tramp_size);
+
+ if (info) {
+ if (is_v4)
+ *info = mono_tramp_info_create ("monitor_enter_v4_trampoline", buf, code - buf, ji, unwind_ops);
+ else
+ *info = mono_tramp_info_create ("monitor_enter_trampoline", buf, code - buf, ji, unwind_ops);
+ }
+
+ return buf;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_create_monitor_exit_trampoline */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
+gpointer
+mono_arch_create_monitor_exit_trampoline (MonoTrampInfo **info, gboolean aot)
+{
+ guint8 *tramp,
+ *code, *buf;
+ gint16 *jump_obj_null,
+ *jump_have_waiters,
+ *jump_sync_null,
+ *jump_not_owned,
+ *jump_cs_failed,
+ *jump_next,
+ *jump_sync_thin_hash = NULL;
+ int tramp_size,
+ status_offset, nest_offset;
+ MonoJumpInfo *ji = NULL;
+ GSList *unwind_ops = NULL;
+ int obj_reg = s390_r2,
+ sync_reg = s390_r3,
+ status_reg = s390_r4;
+
+ g_assert (obj_reg == MONO_ARCH_MONITOR_OBJECT_REG);
+
+ mono_monitor_threads_sync_members_offset (&status_offset, &nest_offset);
+ g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (status_offset) == sizeof (guint32));
+ g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (nest_offset) == sizeof (guint32));
+ status_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (status_offset);
+ nest_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (nest_offset);
+
+ tramp_size = 160;
+
+ code = buf = mono_global_codeman_reserve (tramp_size);
+
+ unwind_ops = mono_arch_get_cie_program ();
+
+ if (mono_thread_get_tls_offset () != -1) {
+ /* MonoObject* obj is in obj_reg */
+ /* is obj null? */
+ s390_ltgr (code, obj_reg, obj_reg);
+ /* if yes, jump to actual trampoline */
+ s390_jz (code, 0); CODEPTR(code, jump_obj_null);
+
+ /* load obj->synchronization to RCX */
+ s390_lg (code, sync_reg, 0, obj_reg, MONO_STRUCT_OFFSET (MonoObject, synchronisation));
+
+ if (mono_gc_is_moving ()) {
+ /*if bit zero is set it's a thin hash*/
+ s390_tmll (code, sync_reg, 1);
+ s390_jo (code, 0); CODEPTR(code, jump_sync_thin_hash);
+
+ /* Clear bits used by the gc */
+ s390_nill (code, sync_reg, ~0x3);
+ }
+
+ /* is synchronization null? */
+ s390_ltgr (code, sync_reg, sync_reg);
+ /* if yes, jump to actual trampoline */
+ s390_jz (code, 0); CODEPTR(code, jump_sync_null);
+
+ /* next case: synchronization is not null */
+ /* load MonoInternalThread* into r5 */
+ s390_ear (code, s390_r5, 0);
+ s390_sllg(code, s390_r5, s390_r5, 0, 32);
+ s390_ear (code, s390_r5, 1);
+ /* load TID into r1 */
+ s390_lg (code, s390_r1, 0, s390_r5, mono_thread_get_tls_offset ());
+ s390_lgf (code, s390_r1, 0, s390_r1, MONO_STRUCT_OFFSET (MonoInternalThread, small_id));
+ /* is synchronization->owner == TID */
+ s390_lgf (code, status_reg, 0, sync_reg, status_offset);
+ s390_xr (code, s390_r1, status_reg);
+ s390_tmlh (code, s390_r1, OWNER_MASK);
+ /* if not, jump to actual trampoline */
+ s390_jno (code, 0); CODEPTR(code, jump_not_owned);
+
+ /* next case: synchronization->owner == TID */
+ /* is synchronization->nest == 1 */
+ s390_lgf (code, s390_r0, 0, sync_reg, nest_offset);
+ s390_chi (code, s390_r0, 1);
+ /* if not, jump to next case */
+ s390_jne (code, 0); CODEPTR(code, jump_next);
+ /* if yes, is synchronization->entry_count greater than zero */
+ s390_cfi (code, status_reg, ENTRY_COUNT_WAITERS);
+ /* if not, jump to actual trampoline */
+ s390_jnz (code, 0); CODEPTR(code, jump_have_waiters);
+ /* if yes, try to set synchronization->owner to null and return */
+ /* old status in s390_r0 */
+ s390_lgfr (code, s390_r0, status_reg);
+ /* form new status */
+ s390_nilf (code, status_reg, ENTRY_COUNT_MASK);
+ /* compare and exchange */
+ s390_cs (code, s390_r0, status_reg, sync_reg, status_offset);
+ /* if not successful, jump to actual trampoline */
+ s390_jnz (code, 0); CODEPTR(code, jump_cs_failed);
+ s390_br (code, s390_r14);
+
+ /* next case: synchronization->nest is not 1 */
+ PTRSLOT (code, jump_next);
+ /* decrease synchronization->nest and return */
+ s390_lgf (code, s390_r0, 0, sync_reg, nest_offset);
+ s390_ahi (code, s390_r0, -1);
+ s390_st (code, s390_r0, 0, sync_reg, nest_offset);
+ s390_br (code, s390_r14);
+
+ PTRSLOT (code, jump_obj_null);
+ if (jump_sync_thin_hash)
+ PTRSLOT (code, jump_sync_thin_hash);
+ PTRSLOT (code, jump_have_waiters);
+ PTRSLOT (code, jump_not_owned);
+ PTRSLOT (code, jump_cs_failed);
+ PTRSLOT (code, jump_sync_null);
+ }
+
+ /* jump to the actual trampoline */
+ tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
+
+ S390_SET (code, s390_r1, tramp);
+ s390_br (code, s390_r1);
+
+ mono_arch_flush_icache (code, code - buf);
+ mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_MONITOR, NULL);
+ g_assert (code - buf <= tramp_size);
+
+ if (info)
+ *info = mono_tramp_info_create ("monitor_exit_trampoline", buf, code - buf, ji, unwind_ops);
+
+ return buf;
+}
+
+/*========================= End of Function ========================*/
+#endif
projects / mono.git / commitdiff