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No commits in common. "dev" and "5a3f581a5a133fb8558ac7069f1442d95d41faed" have entirely different histories.
dev
...
5a3f581a5a
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@ -1,81 +0,0 @@
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ARCH=riscv64-unknown-elf
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GNU_DIR=$(HOME)/riscv/riscv/
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GNU_BIN=$(GNU_DIR)/bin
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CC=$(GNU_BIN)/$(ARCH)-gcc
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CXX=$(GNU_BIN)/$(ARCH)-g++
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AS=$(GNU_BIN)/$(ARCH)-as
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LD=$(GNU_BIN)/$(ARCH)-ld
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OBJCOPY=$(GNU_BIN)/$(ARCH)-objcopy
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OBJDUMP=$(GNU_BIN)/$(ARCH)-objdump
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SIZE=$(GNU_BIN)/$(ARCH)-size
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AR=$(GNU_BIN)/$(ARCH)-ar
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RANLIB=$(GNU_BIN)/$(ARCH)-ranlib
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CFLAGS+=-ffreestanding
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CFLAGS+=-fno-pic
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CFLAGS+=-march=rv32i -mabi=ilp32
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CFLAGS+= -g
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LDFLAGS+=-nostdlib
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LDFLAGS+=-Wl,-Ttext=0x00000000
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# see: https://github.com/riscv/riscv-gcc/issues/120
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#LDFLAGS+=-Wl,--no-relax
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ASFLAGS+=$(CFLAGS)
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CXXFLAGS+=$(CFLAGS)
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CLEAN_DIRS=$(SUBDIRS:%=clean-%)
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ALL_DIRS=$(SUBDIRS:%=all-%)
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OBJDUMPFLAGS+=-Mnumeric,no-aliases
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.PHONY: all clean world $(CLEAN_DIRS) $(ALL_DIRS)
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%.bin : %
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$(OBJCOPY) $< -O binary $@
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%.lst : %
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$(OBJDUMP) $(OBJDUMPFLAGS) -dr --disassemble-all $< > $<.lst
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% : %.o
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$(LINK.cc) $(LDFLAGS) -o $@ $^ $(LDLIBS)
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$(SIZE) -x -A $@
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%.s: %.c
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$(COMPILE.c) -S -o $@ $<
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%.s: %.cc
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$(COMPILE.cc) -S -o $@ $<
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%.o: %.c
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$(COMPILE.c) -o $@ $<
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%.o: %.cc
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$(COMPILE.cc) -o $@ $<
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%.srec: %
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$(OBJCOPY) $< -O srec $@
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all:: $(ALL_DIRS)
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clean:: $(CLEAN_DIRS)
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$(ALL_DIRS)::
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$(MAKE) -C $(@:all-%=%) all
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$(CLEAN_DIRS)::
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$(MAKE) -C $(@:clean-%=%) clean
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world:: clean all
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27
cpp/Makefile
27
cpp/Makefile
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@ -1,27 +0,0 @@
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TOP=./
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include $(TOP)/Make.rules
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LDLIBS=
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#CFLAGS+=-O0 -g
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# CFLAGS+=-Og -ggdb3
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CFLAGS+=-O0 -ggdb3
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LDFLAGS+=-Wl,--no-relax
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LDFLAGS+=-Wl,-Ttext=0x80000000,-Tdata=0x80010000
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# LDFLAGS+=-T murax_128k_ram.ld
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PROGS=prog prog.bin prog.lst
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all:: $(PROGS)
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prog: _crt0.o _rvmain.o myfunc.o
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$(LINK.cc) -o $@ $^ $(LDLIBS)
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$(SIZE) -A -x $@
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clean::
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rm -f $(PROGS) *.o *.s *.lst *.bin *.srec *.dis
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.PHONY: run
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run: prog.bin
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../../../src/rvddt -l0x3000 -f prog.bin
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42
cpp/_crt0.S
42
cpp/_crt0.S
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@ -1,42 +0,0 @@
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.text
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.global _start
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.type _start, @function
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_start:
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# Initialize global pointer
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.option push
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.option norelax
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la gp, __global_pointer$
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.option pop
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li sp, 0x800ffff0
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# Clear the bss segment
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la a0, __bss_start
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la a1, __BSS_END__
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clear_bss:
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bgeu a0, a1, finish_bss
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sb x0, 0(a0)
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addi a0, a0, 1
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beq x0, x0, clear_bss
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finish_bss:
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nop //!
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call main
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nop //!
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# abort execution here
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ebreak
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.section .rodata
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alfabet:
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.string "abcdefghijklmnopqrstuwxyz"
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slowo:
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.section .data
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wynik:
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.string "mpabi"
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.space 26 # rezerwuje 26 bajtów dla wyniku, zainicjowane na 0
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@ -1,73 +0,0 @@
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#include <stdint.h>
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char * ptr1 = "janek";
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char * ptr2 = "kowalskii";
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int strlen(char *s)
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{
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char *p = s;
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while (*p != '\0')
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p++;
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return p - s;
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}
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void strcpy(char *s, char *t)
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{
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while (*s++ = *t++);
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}
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#define ALLOCSIZE 10000
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static char allocbuf[ALLOCSIZE];
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static char *allocp = allocbuf;
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char *alloc(int n)
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{
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if (n % 4 != 0) {
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n += 4 - (n % 4);
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}
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if (allocbuf + ALLOCSIZE - allocp >= n) {
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allocp += n;
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return allocp - n;
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} else
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return 0;
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}
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int main() {
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char * s = "mpabi";
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uint8_t wynik =0;
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wynik = strlen (s);
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asm("nop");
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char * p1 = alloc(strlen(ptr1));
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strcpy (p1, ptr1);
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asm("nop");
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char * p2 = alloc(strlen(ptr2));
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strcpy (p2, ptr2);
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asm("nop");
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struct point {
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int16_t x;
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int16_t y;
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};
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struct point * ptrS = (struct point *) alloc(sizeof(point));
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ptrS->x=0x10;
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ptrS->y=0x20;
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asm("nop");
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(*ptrS).y= strlen (p1)+ strlen(p2);
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return 1;
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}
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@ -1,35 +0,0 @@
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#include "myfunc.h"
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// Lokalna deklaracja funkcji my_strlen
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static int my_strlen(const char *str) {
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int length = 0;
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while (str[length] != '\0') {
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length++;
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}
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return length;
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}
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void count_characters(const char* alfabet, const char* slowo, uint8_t* wynik) {
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// Użycie my_strlen do obliczenia długości alfabetu
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int alfabet_length = my_strlen(alfabet);
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for (int i = 0; i < alfabet_length; ++i) {
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wynik[i] = 0;
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}
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for (int i = 0; i < alfabet_length; ++i) {
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for (int j = 0; slowo[j] != '\0'; ++j) {
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if (alfabet[i] == slowo[j]) {
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wynik[i]++;
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}
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}
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}
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}
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// #include "myfunc.h"
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// const char* alfabet = "abcdefghijklmnopqrstuwxyz";
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// const char* slowo = "mpabi";
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// int wynik[26] = {0}; // Inicjalizacja tablicy wyników na 0
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// count_characters(alfabet, slowo, wynik);
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@ -1,9 +0,0 @@
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#ifndef myfunc_H
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#define myfunc_H
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#include <stdint.h>
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void count_characters(const char* alfabet, const char* slowo, uint8_t* wynik);
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#endif
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17
gdb/z.py
17
gdb/z.py
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@ -1,17 +0,0 @@
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# set args 0x1FF80 0x80 0x30
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# source gdb/z.py
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import gdb
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import sys
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# Parse arguments from the GDB command
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args = gdb.string_to_argv(gdb.parameter("args"))
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if len(args) != 3:
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print("Usage: source gdb/zero_with_params.py <start_address> <num_bytes> <pattern>")
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else:
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start_address = int(args[0], 16) # Convert start address from hex to int
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num_bytes = int(args[1], 16) # Convert number of bytes from hex to int
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pattern = int(args[2], 16) # Convert pattern from hex to int
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for i in range(num_bytes):
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gdb.execute("set *((char*)%x + %x) = %x" % (start_address, i, pattern))
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@ -1,5 +0,0 @@
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#source gdb/z.py
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import gdb
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for i in range(0, 128): # 128 bajtów
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gdb.execute("set *((char*)(0x1FF80 + %x)) = 0xaa" % i)
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BIN
tex/main.pdf
BIN
tex/main.pdf
Binary file not shown.
110
tex/main.tex
110
tex/main.tex
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@ -1,110 +0,0 @@
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\documentclass{article}
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\usepackage[a4paper, margin=2cm]{geometry}
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\usepackage[utf8]{inputenc}
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\usepackage[T1]{fontenc}
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\usepackage[polish]{babel}
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\usepackage{listings}
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\usepackage{color}
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\definecolor{codegreen}{rgb}{0,0.6,0}
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\definecolor{codegray}{rgb}{0.5,0.5,0.5}
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\definecolor{codepurple}{rgb}{0.58,0,0.82}
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\definecolor{backcolour}{rgb}{0.95,0.95,0.92}
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\lstdefinestyle{mystyle}{
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backgroundcolor=\color{backcolour},
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commentstyle=\color{codegreen},
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keywordstyle=\color{magenta},
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numberstyle=\tiny\color{codegray},
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stringstyle=\color{codepurple},
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basicstyle=\ttfamily\footnotesize,
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breakatwhitespace=false,
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breaklines=true,
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captionpos=b,
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keepspaces=true,
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showspaces=false,
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showstringspaces=false,
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showtabs=false,
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tabsize=2
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}
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\lstset{style=mystyle}
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\begin{document}
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\title{GDB and DASHBOARD}
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\author{}
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\date{}
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\maketitle
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\section{Dashboard memory watch}
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Dashboard GDB pozwala na dynamiczne obserwowanie określonych obszarów pamięci. Używając funkcji \texttt{dashboard memory watch}, można ustawić obserwację na konkretne adresy pamięci.
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\begin{lstlisting}[language=bash]
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dashboard memory watch 0x1ff80 128
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\end{lstlisting}
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\noindent
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Powyższa komenda skonfiguruje dashboard do obserwacji 128 bajtów pamięci, począwszy od adresu \texttt{0x1ff80}.
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\section{Obserwacja pamięci przy użyciu watch w GDB}
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Aby obserwować pamięć na niskim poziomie w GDB, można użyć komendy \texttt{watch} w połączeniu z rzutowaniem i rozmiarem obserwowanego obszaru. Przykładowo, aby obserwować 128 bajty pamięci zaczynając od adresu \texttt{0x1ff80}, użyjemy następującej komendy:
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\begin{lstlisting}[language=bash]
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watch *(char*)0x1ff80 @ 128
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\end{lstlisting}
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Ta komenda spowoduje przerwanie wykonania programu, gdy wartości w obserwowanym obszarze pamięci ulegną zmianie. Użycie rzutowania na typ \texttt{(char*)} pozwala na interpretację adresu jako wskaźnika na bajty, a operator \texttt{@} określa ilość obserwowanych bajtów.
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\section{Clear Memory}
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\subsection{Basic Usage}
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To clear 128 bytes of memory starting from 0x1FF80, use the following script:
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\begin{lstlisting}[language=bash]
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#./gdb/zero.py
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import gdb
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for i in range(0, 128): # 128 bajtów
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gdb.execute("set *((char*)0x1FF80 + %d) = 0" % i)
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\end{lstlisting}
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Run this script from GDB dashboard by:
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\begin{lstlisting}[language=bash]
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source gdb/zero.py
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\end{lstlisting}
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\subsection{Option 2: With Parameters}
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To dynamically set the starting address, number of bytes, and pattern from the command line, modify the script as follows:
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\begin{lstlisting}[language=bash]
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#./gdb/zero_with_params.py
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import gdb
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import sys
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# Parse arguments from the GDB command
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args = gdb.string_to_argv(gdb.parameter("args"))
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if len(args) != 3:
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print("Usage: source gdb/zero_with_params.py <start_address> <num_bytes> <pattern>")
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else:
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start_address = int(args[0], 16) # Convert start address from hex to int
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num_bytes = int(args[1], 16) # Convert number of bytes from hex to int
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pattern = int(args[2], 16) # Convert pattern from hex to int
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for i in range(num_bytes):
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gdb.execute("set *((char*)%d + %d) = %d" % (start_address, i, pattern))
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\end{lstlisting}
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To run this script with parameters, set GDB's `args` parameter before sourcing the script:
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\begin{lstlisting}[language=bash]
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set args 0x1FF80 0x80 0x30
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source gdb/zero_with_params.py
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\end{lstlisting}
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This allows specifying the starting address, number of bytes to clear, and the pattern to use directly from the GDB command line.
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\end{document}
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Reference in New Issue