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authorMichael Smith <mikesmiffy128@gmail.com>2021-11-20 03:10:50 +0000
committerMichael Smith <mikesmiffy128@gmail.com>2021-11-20 03:18:08 +0000
commitda6f343032cb01597dc7866e66f091adf3243a62 (patch)
tree870f8cb8e82bb42202ab92bea03fc6ab35ada7ca /src/dbg.c
Initial public snapshot
With code from Bill. Thanks Bill!
Diffstat (limited to 'src/dbg.c')
-rw-r--r--src/dbg.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/dbg.c b/src/dbg.c
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index 0000000..ca4e08e
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+++ b/src/dbg.c
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+/*
+ * Copyright © 2021 Michael Smith <mikesmiffy128@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "con_.h"
+#include "intdefs.h"
+#include "ppmagic.h"
+#include "udis86.h"
+
+void dbg_hexdump(char *name, const void *p, int len) {
+ struct con_colour nice_colour = {160, 64, 200, 255}; // a nice purple colour
+ con_colourmsg(&nice_colour, "Hex dump \"%s\" (%p):", name, p);
+ for (const uchar *cp = p; cp - (uchar *)p < len; ++cp) {
+ // group into words and wrap every 8 words
+ switch ((cp - (uchar *)p) & 31) {
+ case 0: con_msg("\n"); break;
+ CASES(4, 8, 12, 16, 20, 24, 28): con_msg(" ");
+ }
+ con_colourmsg(&nice_colour, "%02X ", *cp);
+ }
+ con_msg("\n");
+}
+
+void dbg_asmdump(char *name, const void *p, int len) {
+ struct con_colour nice_colour = {40, 160, 140, 255}; // a nice teal colour
+ struct ud udis;
+ ud_init(&udis);
+ ud_set_mode(&udis, 32);
+ ud_set_input_buffer(&udis, p, len);
+ ud_set_syntax(&udis, UD_SYN_INTEL);
+ con_colourmsg(&nice_colour, "Disassembly \"%s\" (%p)\n", name, p);
+ while (ud_disassemble(&udis)) {
+ con_colourmsg(&nice_colour, " %s\n", ud_insn_asm(&udis));
+ }
+}
+
+// vi: sw=4 ts=4 noet tw=80 cc=80