Xyris  0.5
Stacktrace.cpp
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1 /**
2  * @file trace.cpp
3  * @author Keeton Feavel ([email protected])
4  * @brief Kernel stack tracing
5  * @version 0.3
6  * @date 2020-08-09
7  *
8  * @copyright Copyright the Xyris Contributors (c) 2020
9  *
10  */
11 
12 #include "Logger.hpp"
13 #include <Arch/Arch.hpp>
14 #include <Devices/Graphics/console.hpp>
15 #include <Devices/Serial/rs232.hpp>
16 #include <Library/stdio.hpp>
17 #include <Memory/paging.hpp>
18 #include <Stacktrace.hpp>
19 
20 #define STACK_TRACE_BUF_SZ 32
21 
22 namespace Stack {
23 
24 void printTrace(size_t max)
25 {
26  // Define our stack
27  struct Arch::stackframe* frame;
28  asm volatile(
29  "movl %%ebp, %0"
30  : "=r"(frame));
31  Console::printf("\033[31mStack trace:\033[0m\n");
32  Logger::Print("\033[31mStack trace:\033[0m\n");
33 
34  for (size_t i = 0; frame != NULL && i < max; ++i) {
35  Console::printf("0x%08zX\n", frame->eip);
36  Logger::Print("0x%08zX\n", frame->eip);
37  if ((uintptr_t)frame->ebp == 0x00000000) {
38  break;
39  }
40  frame = frame->ebp;
41  }
42 }
43 
44 } // !namespace Stack
stdio.hpp
Arch::stackframe::ebp
struct stackframe * ebp
Definition: Arch.i686.hpp:19
Arch::stackframe::eip
size_t eip
Definition: Arch.i686.hpp:20
console.hpp
Framebuffer console.
Stack::printTrace
void printTrace(size_t max)
Definition: Stacktrace.cpp:24
rs232.hpp
A simple, write-only driver for the RS232 serial device standard. Code mostly ported from Panix-Archi...
Arch.hpp
Architecture control and initialization.
Arch::stackframe
Definition: Arch.i686.hpp:18
Console::printf
int printf(const char *fmt,...)
Definition: console.cpp:273
Stacktrace.hpp
Logger::Print
static void Print(const char *fmt,...)
Definition: Logger.cpp:111
paging.hpp
Stack
Definition: Stacktrace.cpp:22
Logger.hpp