From 2098f2031e9fb474df9d4ed35d9d6fef836b0e7e Mon Sep 17 00:00:00 2001
From: Hans-Peter Deifel <hpd@hpdeifel.de>
Date: Tue, 28 Mar 2017 08:45:49 +0200
Subject: [PATCH] prelude: Add function to print hexdump of OS state
Useful for debugging.
---
files/mockup_prelude.cc | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/files/mockup_prelude.cc b/files/mockup_prelude.cc
index 4f4b7c9..d25edff 100644
--- a/files/mockup_prelude.cc
+++ b/files/mockup_prelude.cc
@@ -99,6 +99,26 @@ uint32_t hash_os_state() {
return first_hash ^ second_hash;
}
+void hex_os_state() {
+ const uint8_t *start = (const uint8_t*)&_sdata_os_canonical;
+ const uint8_t *end = (const uint8_t*)&_edata_os_canonical;
+ uint32_t len = end-start;
+
+ printf("os-hex: len:%d 0x", len);
+ for (const uint8_t *i = start; i < end; i++) {
+ printf("%02x", *i);
+ }
+
+ start = (const uint8_t*)&_sdata_arch_canonical;
+ end = (const uint8_t*)&_edata_arch_canonical;
+ len = end-start;
+ printf(" | arch-hex: len:%d 0x", len);
+ for (const uint8_t *i = start; i < end; i++) {
+ printf("%02x", *i);
+ }
+ printf("\n");
+}
+
void _print_os_state(const char *format, const char *syscall, const char *func) {
printf(format, hash_os_state(), syscall, func);
printf("\n");
--
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