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c15ace8508
* Only for x86-32 for now * Uses a reverse register list for passing arguments * See libr/anal/d/README.md for more details * Support ret2 (to return 64bit values) * Add fcn->realname for demangled names
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/* radare - LGPL - Copyright 2010-2020 pancake */
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#include <r_debug.h>
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R_API ut64 r_debug_arg_get(RDebug *dbg, const char *cc, int num) {
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r_return_val_if_fail (dbg, UT64_MAX);
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if (!cc) {
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cc = r_anal_syscc_default (dbg->anal);
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}
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if (dbg->anal) {
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if (!R_STR_ISEMPTY (cc)) {
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if (!strcmp (cc, "stdcall") || !strcmp (cc, "pascal")) {
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ut64 sp = r_debug_reg_get (dbg, "SP");
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if (dbg->bits == 64) {
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ut64 n64;
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sp += 8; // skip return address, assume we are inside the call
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sp += 8 * num;
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dbg->iob.read_at (dbg->iob.io, sp, (ut8*)&n64, sizeof (ut64));
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// TODO: honor endianness of platform
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return (ut64)n64;
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} else {
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sp += 4; // skip return address, assume we are inside the call
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sp += 4 * num;
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ut32 n32;
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dbg->iob.read_at (dbg->iob.io, sp, (ut8*)&n32, sizeof (ut32));
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// TODO: honor endianness of platform
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return (ut64)n32;
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}
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}
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const char *rn = r_anal_cc_arg (dbg->anal, cc, num, -1);
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if (rn) {
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return r_debug_reg_get (dbg, rn);
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}
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}
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}
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char reg[32];
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snprintf (reg, sizeof (reg) - 1, "A%d", num);
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return r_debug_reg_get (dbg, reg);
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}
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R_API bool r_debug_arg_set(RDebug *dbg, const char *cc, int num, ut64 val) {
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r_return_val_if_fail (dbg, false);
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if (!R_STR_ISEMPTY (cc)) {
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cc = r_anal_syscc_default (dbg->anal);
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}
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const char *rn = r_anal_cc_arg (dbg->anal, cc, num, -1);
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if (rn) {
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r_debug_reg_set (dbg, rn, val);
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return true;
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}
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char reg[32];
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snprintf (reg, sizeof (reg) - 1, "A%d", num);
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r_debug_reg_set (dbg, reg, val);
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return true;
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}
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