guint8 *code;
MonoJumpInfo *ji = NULL;
GSList *unwind_ops = NULL;
+ int i, gregs_offset;
/* restore_contect (MonoContext *ctx) */
amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG1, 8);
/* Restore all registers except %rip and %r11 */
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rax), 8);
- amd64_mov_reg_membase (code, AMD64_RCX, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rcx), 8);
- amd64_mov_reg_membase (code, AMD64_RDX, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rdx), 8);
- amd64_mov_reg_membase (code, AMD64_RBX, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rbx), 8);
- amd64_mov_reg_membase (code, AMD64_RBP, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rbp), 8);
- amd64_mov_reg_membase (code, AMD64_RSI, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rsi), 8);
- amd64_mov_reg_membase (code, AMD64_RDI, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rdi), 8);
- //amd64_mov_reg_membase (code, AMD64_R8, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, r8), 8);
- //amd64_mov_reg_membase (code, AMD64_R9, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, r9), 8);
- //amd64_mov_reg_membase (code, AMD64_R10, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, r10), 8);
- amd64_mov_reg_membase (code, AMD64_R12, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, r12), 8);
- amd64_mov_reg_membase (code, AMD64_R13, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, r13), 8);
- amd64_mov_reg_membase (code, AMD64_R14, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, r14), 8);
-#if !defined(__native_client_codegen__)
- amd64_mov_reg_membase (code, AMD64_R15, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, r15), 8);
+ gregs_offset = MONO_STRUCT_OFFSET (MonoContext, gregs);
+ for (i = 0; i < AMD64_NREG; ++i) {
+#if defined(__native_client_codegen__)
+ if (i == AMD64_R15)
+ continue;
#endif
+ if (i != AMD64_RIP && i != AMD64_RSP && i != AMD64_R8 && i != AMD64_R9 && i != AMD64_R10 && i != AMD64_R11)
+ amd64_mov_reg_membase (code, i, AMD64_R11, gregs_offset + (i * 8), 8);
+ }
/*
* The context resides on the stack, in the stack frame of the
* size. Hence the stack pointer can be restored only after
* we have finished loading everything from the context.
*/
- amd64_mov_reg_membase (code, AMD64_R8, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rsp), 8);
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, MONO_STRUCT_OFFSET (MonoContext, rip), 8);
+ amd64_mov_reg_membase (code, AMD64_R8, AMD64_R11, gregs_offset + (AMD64_RSP * 8), 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, gregs_offset + (AMD64_RIP * 8), 8);
amd64_mov_reg_reg (code, AMD64_RSP, AMD64_R8, 8);
/* jump to the saved IP */
amd64_jump_reg (code, AMD64_R11);
- nacl_global_codeman_validate(&start, 256, &code);
+ nacl_global_codeman_validate (&start, 256, &code);
mono_arch_flush_icache (start, code - start);
mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING, NULL);
mono_arch_get_call_filter (MonoTrampInfo **info, gboolean aot)
{
guint8 *start;
- int i;
+ int i, gregs_offset;
guint8 *code;
guint32 pos;
MonoJumpInfo *ji = NULL;
if (! (pos & 8))
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8);
+ gregs_offset = MONO_STRUCT_OFFSET (MonoContext, gregs);
+
/* set new EBP */
- amd64_mov_reg_membase (code, AMD64_RBP, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, rbp), 8);
+ amd64_mov_reg_membase (code, AMD64_RBP, AMD64_ARG_REG1, gregs_offset + (AMD64_RBP * 8), 8);
/* load callee saved regs */
- amd64_mov_reg_membase (code, AMD64_RBX, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, rbx), 8);
- amd64_mov_reg_membase (code, AMD64_R12, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, r12), 8);
- amd64_mov_reg_membase (code, AMD64_R13, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, r13), 8);
- amd64_mov_reg_membase (code, AMD64_R14, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, r14), 8);
-#if !defined(__native_client_codegen__)
- amd64_mov_reg_membase (code, AMD64_R15, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, r15), 8);
-#endif
-#ifdef TARGET_WIN32
- amd64_mov_reg_membase (code, AMD64_RDI, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, rdi), 8);
- amd64_mov_reg_membase (code, AMD64_RSI, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, rsi), 8);
+ for (i = 0; i < AMD64_NREG; ++i) {
+#if defined(__native_client_codegen__)
+ if (i == AMD64_R15)
+ continue;
#endif
+ if (AMD64_IS_CALLEE_SAVED_REG (i) && i != AMD64_RBP)
+ amd64_mov_reg_membase (code, AMD64_RBX, AMD64_ARG_REG1, gregs_offset + (i * 8), 8);
+ }
/* load exc register */
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_ARG_REG1, MONO_STRUCT_OFFSET (MonoContext, rax), 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_ARG_REG1, gregs_offset + (AMD64_RAX * 8), 8);
/* call the handler */
amd64_call_reg (code, AMD64_ARG_REG2);
void
mono_amd64_throw_exception (guint64 dummy1, guint64 dummy2, guint64 dummy3, guint64 dummy4,
guint64 dummy5, guint64 dummy6,
- mgreg_t *regs, mgreg_t rip,
- MonoObject *exc, gboolean rethrow)
+ MonoContext *mctx, MonoObject *exc, gboolean rethrow)
{
MonoContext ctx;
- ctx.rsp = regs [AMD64_RSP];
- ctx.rip = rip;
- ctx.rbx = regs [AMD64_RBX];
- ctx.rbp = regs [AMD64_RBP];
- ctx.r12 = regs [AMD64_R12];
- ctx.r13 = regs [AMD64_R13];
- ctx.r14 = regs [AMD64_R14];
- ctx.r15 = regs [AMD64_R15];
- ctx.rdi = regs [AMD64_RDI];
- ctx.rsi = regs [AMD64_RSI];
- ctx.rax = regs [AMD64_RAX];
- ctx.rcx = regs [AMD64_RCX];
- ctx.rdx = regs [AMD64_RDX];
+ /* mctx is on the caller's stack */
+ memcpy (&ctx, mctx, sizeof (MonoContext));
if (mono_object_isinst (exc, mono_defaults.exception_class)) {
MonoException *mono_ex = (MonoException*)exc;
- if (!rethrow)
+ if (!rethrow) {
mono_ex->stack_trace = NULL;
+ mono_ex->trace_ips = NULL;
+ }
}
/* adjust eip so that it point into the call instruction */
- ctx.rip -= 1;
+ ctx.gregs [AMD64_RIP] --;
mono_handle_exception (&ctx, exc);
mono_restore_context (&ctx);
void
mono_amd64_throw_corlib_exception (guint64 dummy1, guint64 dummy2, guint64 dummy3, guint64 dummy4,
guint64 dummy5, guint64 dummy6,
- mgreg_t *regs, mgreg_t rip,
- guint32 ex_token_index, gint64 pc_offset)
+ MonoContext *mctx, guint32 ex_token_index, gint64 pc_offset)
{
guint32 ex_token = MONO_TOKEN_TYPE_DEF | ex_token_index;
MonoException *ex;
ex = mono_exception_from_token (mono_defaults.exception_class->image, ex_token);
- rip -= pc_offset;
+ mctx->gregs [AMD64_RIP] -= pc_offset;
/* Negate the ip adjustment done in mono_amd64_throw_exception () */
- rip += 1;
+ mctx->gregs [AMD64_RIP] += 1;
- mono_amd64_throw_exception (dummy1, dummy2, dummy3, dummy4, dummy5, dummy6, regs, rip, (MonoObject*)ex, FALSE);
+ mono_amd64_throw_exception (dummy1, dummy2, dummy3, dummy4, dummy5, dummy6, mctx, (MonoObject*)ex, FALSE);
}
static void
mono_amd64_resume_unwind (guint64 dummy1, guint64 dummy2, guint64 dummy3, guint64 dummy4,
guint64 dummy5, guint64 dummy6,
- mgreg_t *regs, mgreg_t rip,
- guint32 dummy7, gint64 dummy8)
+ MonoContext *mctx, guint32 dummy7, gint64 dummy8)
{
/* Only the register parameters are valid */
MonoContext ctx;
- ctx.rsp = regs [AMD64_RSP];
- ctx.rip = rip;
- ctx.rbx = regs [AMD64_RBX];
- ctx.rbp = regs [AMD64_RBP];
- ctx.r12 = regs [AMD64_R12];
- ctx.r13 = regs [AMD64_R13];
- ctx.r14 = regs [AMD64_R14];
- ctx.r15 = regs [AMD64_R15];
- ctx.rdi = regs [AMD64_RDI];
- ctx.rsi = regs [AMD64_RSI];
- ctx.rax = regs [AMD64_RAX];
- ctx.rcx = regs [AMD64_RCX];
- ctx.rdx = regs [AMD64_RDX];
+ /* mctx is on the caller's stack */
+ memcpy (&ctx, mctx, sizeof (MonoContext));
mono_resume_unwind (&ctx);
}
guint8 *code;
MonoJumpInfo *ji = NULL;
GSList *unwind_ops = NULL;
- int i, stack_size, arg_offsets [16], regs_offset, dummy_stack_space;
+ int i, stack_size, arg_offsets [16], ctx_offset, regs_offset, dummy_stack_space;
const guint kMaxCodeSize = NACL_SIZE (256, 512);
#ifdef TARGET_WIN32
start = code = mono_global_codeman_reserve (kMaxCodeSize);
/* The stack is unaligned on entry */
- stack_size = 192 + 8 + dummy_stack_space;
+ stack_size = ALIGN_TO (sizeof (MonoContext) + 64 + dummy_stack_space, MONO_ARCH_FRAME_ALIGNMENT) + 8;
code = start;
arg_offsets [0] = dummy_stack_space + 0;
arg_offsets [1] = dummy_stack_space + sizeof(mgreg_t);
arg_offsets [2] = dummy_stack_space + sizeof(mgreg_t) * 2;
- arg_offsets [3] = dummy_stack_space + sizeof(mgreg_t) * 3;
- regs_offset = dummy_stack_space + sizeof(mgreg_t) * 4;
+ ctx_offset = dummy_stack_space + sizeof(mgreg_t) * 4;
+ regs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs);
/* Save registers */
for (i = 0; i < AMD64_NREG; ++i)
/* Save RSP */
amd64_lea_membase (code, AMD64_RAX, AMD64_RSP, stack_size + sizeof(mgreg_t));
amd64_mov_membase_reg (code, AMD64_RSP, regs_offset + (AMD64_RSP * sizeof(mgreg_t)), X86_EAX, sizeof(mgreg_t));
- /* Set arg1 == regs */
- amd64_lea_membase (code, AMD64_RAX, AMD64_RSP, regs_offset);
- amd64_mov_membase_reg (code, AMD64_RSP, arg_offsets [0], AMD64_RAX, sizeof(mgreg_t));
- /* Set arg2 == eip */
+ /* Save IP */
if (llvm_abs)
amd64_alu_reg_reg (code, X86_XOR, AMD64_RAX, AMD64_RAX);
else
amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RSP, stack_size, sizeof(mgreg_t));
- amd64_mov_membase_reg (code, AMD64_RSP, arg_offsets [1], AMD64_RAX, sizeof(mgreg_t));
- /* Set arg3 == exc/ex_token_index */
+ amd64_mov_membase_reg (code, AMD64_RSP, regs_offset + (AMD64_RIP * sizeof(mgreg_t)), AMD64_RAX, sizeof(mgreg_t));
+ /* Set arg1 == ctx */
+ amd64_lea_membase (code, AMD64_RAX, AMD64_RSP, ctx_offset);
+ amd64_mov_membase_reg (code, AMD64_RSP, arg_offsets [0], AMD64_RAX, sizeof(mgreg_t));
+ /* Set arg2 == exc/ex_token_index */
if (resume_unwind)
- amd64_mov_membase_imm (code, AMD64_RSP, arg_offsets [2], 0, sizeof(mgreg_t));
+ amd64_mov_membase_imm (code, AMD64_RSP, arg_offsets [1], 0, sizeof(mgreg_t));
else
- amd64_mov_membase_reg (code, AMD64_RSP, arg_offsets [2], AMD64_ARG_REG1, sizeof(mgreg_t));
- /* Set arg4 == rethrow/pc offset */
+ amd64_mov_membase_reg (code, AMD64_RSP, arg_offsets [1], AMD64_ARG_REG1, sizeof(mgreg_t));
+ /* Set arg3 == rethrow/pc offset */
if (resume_unwind) {
- amd64_mov_membase_imm (code, AMD64_RSP, arg_offsets [3], 0, sizeof(mgreg_t));
+ amd64_mov_membase_imm (code, AMD64_RSP, arg_offsets [2], 0, sizeof(mgreg_t));
} else if (corlib) {
- amd64_mov_membase_reg (code, AMD64_RSP, arg_offsets [3], AMD64_ARG_REG2, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RSP, arg_offsets [2], AMD64_ARG_REG2, sizeof(mgreg_t));
if (llvm_abs)
/*
* The caller is LLVM code which passes the absolute address not a pc offset,
* so compensate by passing 0 as 'rip' and passing the negated abs address as
* the pc offset.
*/
- amd64_neg_membase (code, AMD64_RSP, arg_offsets [3]);
+ amd64_neg_membase (code, AMD64_RSP, arg_offsets [2]);
} else {
- amd64_mov_membase_imm (code, AMD64_RSP, arg_offsets [3], rethrow, sizeof(mgreg_t));
+ amd64_mov_membase_imm (code, AMD64_RSP, arg_offsets [2], rethrow, sizeof(mgreg_t));
}
if (aot) {
StackFrameInfo *frame)
{
gpointer ip = MONO_CONTEXT_GET_IP (ctx);
+ int i;
memset (frame, 0, sizeof (StackFrameInfo));
frame->ji = ji;
if (ji->has_arch_eh_info)
epilog = (guint8*)ji->code_start + ji->code_size - mono_jinfo_get_epilog_size (ji);
- regs [AMD64_RAX] = new_ctx->rax;
- regs [AMD64_RBX] = new_ctx->rbx;
- regs [AMD64_RCX] = new_ctx->rcx;
- regs [AMD64_RDX] = new_ctx->rdx;
- regs [AMD64_RBP] = new_ctx->rbp;
- regs [AMD64_RSP] = new_ctx->rsp;
- regs [AMD64_RSI] = new_ctx->rsi;
- regs [AMD64_RDI] = new_ctx->rdi;
- regs [AMD64_RIP] = new_ctx->rip;
- regs [AMD64_R12] = new_ctx->r12;
- regs [AMD64_R13] = new_ctx->r13;
- regs [AMD64_R14] = new_ctx->r14;
- regs [AMD64_R15] = new_ctx->r15;
+ for (i = 0; i < AMD64_NREG; ++i)
+ regs [i] = new_ctx->gregs [i];
mono_unwind_frame (unwind_info, unwind_info_len, ji->code_start,
(guint8*)ji->code_start + ji->code_size,
ip, epilog ? &epilog : NULL, regs, MONO_MAX_IREGS + 1,
save_locations, MONO_MAX_IREGS, &cfa);
- new_ctx->rax = regs [AMD64_RAX];
- new_ctx->rbx = regs [AMD64_RBX];
- new_ctx->rcx = regs [AMD64_RCX];
- new_ctx->rdx = regs [AMD64_RDX];
- new_ctx->rbp = regs [AMD64_RBP];
- new_ctx->rsp = regs [AMD64_RSP];
- new_ctx->rsi = regs [AMD64_RSI];
- new_ctx->rdi = regs [AMD64_RDI];
- new_ctx->rip = regs [AMD64_RIP];
- new_ctx->r12 = regs [AMD64_R12];
- new_ctx->r13 = regs [AMD64_R13];
- new_ctx->r14 = regs [AMD64_R14];
- new_ctx->r15 = regs [AMD64_R15];
+ for (i = 0; i < AMD64_NREG; ++i)
+ new_ctx->gregs [i] = regs [i];
/* The CFA becomes the new SP value */
- new_ctx->rsp = (mgreg_t)cfa;
+ new_ctx->gregs [AMD64_RSP] = (mgreg_t)cfa;
/* Adjust IP */
- new_ctx->rip --;
+ new_ctx->gregs [AMD64_RIP] --;
return TRUE;
} else if (*lmf) {
return TRUE;
}
- if (((guint64)(*lmf)->previous_lmf) & 1) {
+ if (((guint64)(*lmf)->previous_lmf) & 4) {
+ MonoLMFTramp *ext = (MonoLMFTramp*)(*lmf);
+
+ rip = (guint64)MONO_CONTEXT_GET_IP (ext->ctx);
+ } else if (((guint64)(*lmf)->previous_lmf) & 1) {
/* This LMF has the rip field set */
rip = (*lmf)->rip;
} else if ((*lmf)->rsp == 0) {
if (!ji)
return FALSE;
- /* Adjust IP */
- rip --;
-
frame->ji = ji;
frame->type = FRAME_TYPE_MANAGED_TO_NATIVE;
- new_ctx->rip = rip;
- new_ctx->rbp = (*lmf)->rbp;
- new_ctx->rsp = (*lmf)->rsp;
-
if (((guint64)(*lmf)->previous_lmf) & 4) {
MonoLMFTramp *ext = (MonoLMFTramp*)(*lmf);
/* Trampoline frame */
- new_ctx->rbx = ext->regs [AMD64_RBX];
- new_ctx->r12 = ext->regs [AMD64_R12];
- new_ctx->r13 = ext->regs [AMD64_R13];
- new_ctx->r14 = ext->regs [AMD64_R14];
- new_ctx->r15 = ext->regs [AMD64_R15];
-#ifdef TARGET_WIN32
- new_ctx->rdi = ext->regs [AMD64_RDI];
- new_ctx->rsi = ext->regs [AMD64_RSI];
-#endif
+ for (i = 0; i < AMD64_NREG; ++i)
+ new_ctx->gregs [i] = ext->ctx->gregs [i];
+ /* Adjust IP */
+ new_ctx->gregs [AMD64_RIP] --;
} else {
/*
* The registers saved in the LMF will be restored using the normal unwind info,
* when the wrapper frame is processed.
*/
- new_ctx->rbx = 0;
- new_ctx->r12 = 0;
- new_ctx->r13 = 0;
- new_ctx->r14 = 0;
- new_ctx->r15 = 0;
-#ifdef TARGET_WIN32
- new_ctx->rdi = 0;
- new_ctx->rsi = 0;
-#endif
+ /* Adjust IP */
+ rip --;
+ new_ctx->gregs [AMD64_RIP] = rip;
+ new_ctx->gregs [AMD64_RSP] = (*lmf)->rsp;
+ new_ctx->gregs [AMD64_RBP] = (*lmf)->rbp;
+ for (i = 0; i < AMD64_NREG; ++i) {
+ if (AMD64_IS_CALLEE_SAVED_REG (i) && i != AMD64_RBP)
+ new_ctx->gregs [i] = 0;
+ }
}
*lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~7);
void
mono_arch_setup_async_callback (MonoContext *ctx, void (*async_cb)(void *fun), gpointer user_data)
{
- guint64 sp = ctx->rsp;
+ guint64 sp = ctx->gregs [AMD64_RSP];
- ctx->rdi = (guint64)user_data;
+ ctx->gregs [AMD64_RDI] = (guint64)user_data;
/* Allocate a stack frame below the red zone */
sp -= 128;
sp -= 8;
#ifdef __linux__
/* Preserve the call chain to prevent crashes in the libgcc unwinder (#15969) */
- *(guint64*)sp = ctx->rip;
+ *(guint64*)sp = ctx->gregs [AMD64_RIP];
#endif
- ctx->rsp = sp;
- ctx->rip = (guint64)async_cb;
+ ctx->gregs [AMD64_RSP] = sp;
+ ctx->gregs [AMD64_RIP] = (guint64)async_cb;
}
/**
prepare_for_guard_pages (MonoContext *mctx)
{
gpointer *sp;
- sp = (gpointer)(mctx->rsp);
+ sp = (gpointer)(mctx->gregs [AMD64_RSP]);
sp -= 1;
/* the return addr */
- sp [0] = (gpointer)(mctx->rip);
- mctx->rip = (guint64)restore_soft_guard_pages;
- mctx->rsp = (guint64)sp;
+ sp [0] = (gpointer)(mctx->gregs [AMD64_RIP]);
+ mctx->gregs [AMD64_RIP] = (guint64)restore_soft_guard_pages;
+ mctx->gregs [AMD64_RSP] = (guint64)sp;
}
static void
/* Initial LMF */
return;
- if ((guint64)lmf->previous_lmf & 1)
+ if ((guint64)lmf->previous_lmf & 5)
/* Already hijacked or trampoline LMF entry */
return;
projects / mono.git / blobdiff