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-rw-r--r--src/3p/udis86/syn.c212
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diff --git a/src/3p/udis86/syn.c b/src/3p/udis86/syn.c
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+/* udis86 - libudis86/syn.c
+ *
+ * Copyright (c) 2002-2013 Vivek Thampi
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "types.h"
+#include "decode.h"
+#include "syn.h"
+#include "udint.h"
+
+/*
+ * Register Table - Order Matters (types.h)!
+ *
+ */
+const char* ud_reg_tab[] =
+{
+ "al", "cl", "dl", "bl",
+ "ah", "ch", "dh", "bh",
+ "spl", "bpl", "sil", "dil",
+ "r8b", "r9b", "r10b", "r11b",
+ "r12b", "r13b", "r14b", "r15b",
+
+ "ax", "cx", "dx", "bx",
+ "sp", "bp", "si", "di",
+ "r8w", "r9w", "r10w", "r11w",
+ "r12w", "r13w", "r14w", "r15w",
+
+ "eax", "ecx", "edx", "ebx",
+ "esp", "ebp", "esi", "edi",
+ "r8d", "r9d", "r10d", "r11d",
+ "r12d", "r13d", "r14d", "r15d",
+
+ "rax", "rcx", "rdx", "rbx",
+ "rsp", "rbp", "rsi", "rdi",
+ "r8", "r9", "r10", "r11",
+ "r12", "r13", "r14", "r15",
+
+ "es", "cs", "ss", "ds",
+ "fs", "gs",
+
+ "cr0", "cr1", "cr2", "cr3",
+ "cr4", "cr5", "cr6", "cr7",
+ "cr8", "cr9", "cr10", "cr11",
+ "cr12", "cr13", "cr14", "cr15",
+
+ "dr0", "dr1", "dr2", "dr3",
+ "dr4", "dr5", "dr6", "dr7",
+ "dr8", "dr9", "dr10", "dr11",
+ "dr12", "dr13", "dr14", "dr15",
+
+ "mm0", "mm1", "mm2", "mm3",
+ "mm4", "mm5", "mm6", "mm7",
+
+ "st0", "st1", "st2", "st3",
+ "st4", "st5", "st6", "st7",
+
+ "xmm0", "xmm1", "xmm2", "xmm3",
+ "xmm4", "xmm5", "xmm6", "xmm7",
+ "xmm8", "xmm9", "xmm10", "xmm11",
+ "xmm12", "xmm13", "xmm14", "xmm15",
+
+ "ymm0", "ymm1", "ymm2", "ymm3",
+ "ymm4", "ymm5", "ymm6", "ymm7",
+ "ymm8", "ymm9", "ymm10", "ymm11",
+ "ymm12", "ymm13", "ymm14", "ymm15",
+
+ "rip"
+};
+
+
+uint64_t
+ud_syn_rel_target(struct ud *u, struct ud_operand *opr)
+{
+ const uint64_t trunc_mask = 0xffffffffffffffffull >> (64 - u->opr_mode);
+ switch (opr->size) {
+ case 8 : return (u->pc + opr->lval.sbyte) & trunc_mask;
+ case 16: return (u->pc + opr->lval.sword) & trunc_mask;
+ case 32: return (u->pc + opr->lval.sdword) & trunc_mask;
+ default: UD_ASSERT(!"invalid relative offset size.");
+ return 0ull;
+ }
+}
+
+
+/*
+ * asmprintf
+ * Printf style function for printing translated assembly
+ * output. Returns the number of characters written and
+ * moves the buffer pointer forward. On an overflow,
+ * returns a negative number and truncates the output.
+ */
+int
+ud_asmprintf(struct ud *u, const char *fmt, ...)
+{
+ int ret;
+ int avail;
+ va_list ap;
+ va_start(ap, fmt);
+ avail = u->asm_buf_size - u->asm_buf_fill - 1 /* nullchar */;
+ ret = vsnprintf((char*) u->asm_buf + u->asm_buf_fill, avail, fmt, ap);
+ if (ret < 0 || ret > avail) {
+ u->asm_buf_fill = u->asm_buf_size - 1;
+ } else {
+ u->asm_buf_fill += ret;
+ }
+ va_end(ap);
+ return ret;
+}
+
+
+void
+ud_syn_print_addr(struct ud *u, uint64_t addr)
+{
+ const char *name = NULL;
+ if (u->sym_resolver) {
+ int64_t offset = 0;
+ name = u->sym_resolver(u, addr, &offset);
+ if (name) {
+ if (offset) {
+ ud_asmprintf(u, "%s%+" FMT64 "d", name, offset);
+ } else {
+ ud_asmprintf(u, "%s", name);
+ }
+ return;
+ }
+ }
+ ud_asmprintf(u, "0x%" FMT64 "x", addr);
+}
+
+
+void
+ud_syn_print_imm(struct ud* u, const struct ud_operand *op)
+{
+ uint64_t v;
+ if (op->_oprcode == OP_sI && op->size != u->opr_mode) {
+ if (op->size == 8) {
+ v = (int64_t)op->lval.sbyte;
+ } else {
+ UD_ASSERT(op->size == 32);
+ v = (int64_t)op->lval.sdword;
+ }
+ if (u->opr_mode < 64) {
+ v = v & ((1ull << u->opr_mode) - 1ull);
+ }
+ } else {
+ switch (op->size) {
+ case 8 : v = op->lval.ubyte; break;
+ case 16: v = op->lval.uword; break;
+ case 32: v = op->lval.udword; break;
+ case 64: v = op->lval.uqword; break;
+ default: UD_ASSERT(!"invalid offset"); v = 0; /* keep cc happy */
+ }
+ }
+ ud_asmprintf(u, "0x%" FMT64 "x", v);
+}
+
+
+void
+ud_syn_print_mem_disp(struct ud* u, const struct ud_operand *op, int sign)
+{
+ UD_ASSERT(op->offset != 0);
+ if (op->base == UD_NONE && op->index == UD_NONE) {
+ uint64_t v;
+ UD_ASSERT(op->scale == UD_NONE && op->offset != 8);
+ /* unsigned mem-offset */
+ switch (op->offset) {
+ case 16: v = op->lval.uword; break;
+ case 32: v = op->lval.udword; break;
+ case 64: v = op->lval.uqword; break;
+ default: UD_ASSERT(!"invalid offset"); v = 0; /* keep cc happy */
+ }
+ ud_asmprintf(u, "0x%" FMT64 "x", v);
+ } else {
+ int64_t v;
+ UD_ASSERT(op->offset != 64);
+ switch (op->offset) {
+ case 8 : v = op->lval.sbyte; break;
+ case 16: v = op->lval.sword; break;
+ case 32: v = op->lval.sdword; break;
+ default: UD_ASSERT(!"invalid offset"); v = 0; /* keep cc happy */
+ }
+ if (v < 0) {
+ ud_asmprintf(u, "-0x%" FMT64 "x", -v);
+ } else if (v > 0) {
+ ud_asmprintf(u, "%s0x%" FMT64 "x", sign? "+" : "", v);
+ }
+ }
+}
+
+/*
+vim: set ts=2 sw=2 expandtab
+*/
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