Duzy commit ze smieciami

17 files changed, 748 insertions, 0 deletions

diff --git a/semestr-4/ask/lista8/._lista_8 b/semestr-4/ask/lista8/._lista_8
new file mode 100755
index 0000000..893436c
--- /dev/null
+++ b/semestr-4/ask/lista8/._lista_8
diff --git a/semestr-4/ask/lista8/ask21_lista_8.tgz b/semestr-4/ask/lista8/ask21_lista_8.tgz
new file mode 100644
index 0000000..789c9af
--- /dev/null
+++ b/semestr-4/ask/lista8/ask21_lista_8.tgz
diff --git a/semestr-4/ask/lista8/bar.c b/semestr-4/ask/lista8/bar.c
new file mode 100644
index 0000000..97fbd4f
--- /dev/null
+++ b/semestr-4/ask/lista8/bar.c
@@ -0,0 +1,5 @@
+// extern long foo;
+
+int bar = 42;
+// long *foo_p = &foo;
+short dead[15];
diff --git a/semestr-4/ask/lista8/even.c b/semestr-4/ask/lista8/even.c
new file mode 100644
index 0000000..5bf8606
--- /dev/null
+++ b/semestr-4/ask/lista8/even.c
@@ -0,0 +1,8 @@
+int is_odd(long n);
+
+int is_even(long n) {
+  if (n == 0)
+    return 1;
+  else
+    return is_odd(n - 1);
+}
diff --git a/semestr-4/ask/lista8/foo.c b/semestr-4/ask/lista8/foo.c
new file mode 100644
index 0000000..080d831
--- /dev/null
+++ b/semestr-4/ask/lista8/foo.c
@@ -0,0 +1,5 @@
+// extern int bar;
+
+long foo = 19;
+// int *bar_p = &bar;
+char code[17];
diff --git a/semestr-4/ask/lista8/lazy.c b/semestr-4/ask/lista8/lazy.c
new file mode 100644
index 0000000..fb08cf7
--- /dev/null
+++ b/semestr-4/ask/lista8/lazy.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main(void) {
+  puts("first time");
+  puts("second time");
+  return 0;
+}
diff --git a/semestr-4/ask/lista8/main.lds b/semestr-4/ask/lista8/main.lds
new file mode 100644
index 0000000..25a4ca9
--- /dev/null
+++ b/semestr-4/ask/lista8/main.lds
@@ -0,0 +1,39 @@
+OUTPUT_FORMAT("elf64-x86-64")
+OUTPUT_ARCH(i386:x86-64)
+ENTRY(_start)
+PHDRS
+{
+  code   PT_LOAD FLAGS(5);
+  rodata PT_LOAD FLAGS(4);
+  data   PT_LOAD FLAGS(6);
+}
+SECTIONS
+{
+  . = 0x400000 + SIZEOF_HEADERS;
+
+  .text :
+  {
+    *(.text .text.*)
+  } : code
+
+  .rodata :
+  {
+    *(.rodata .rodata.*)
+  } : rodata
+
+  .data : 
+  {
+    *(.data .data.*)
+  } : data
+
+  .bss :
+  {
+   *(.bss .bss.*)
+   *(COMMON)
+  } : data
+
+  /DISCARD/ :
+  {
+    *(.note.gnu.property)
+  }
+}
diff --git a/semestr-4/ask/lista8/merge-1.map b/semestr-4/ask/lista8/merge-1.map
new file mode 100644
index 0000000..2e93e7c
--- /dev/null
+++ b/semestr-4/ask/lista8/merge-1.map
@@ -0,0 +1,300 @@
+
+Merging program properties
+
+
+Discarded input sections
+
+ .note.gnu.property
+                0x0000000000000000       0x20 bar.o
+
+Memory Configuration
+
+Name             Origin             Length             Attributes
+*default*        0x0000000000000000 0xffffffffffffffff
+
+Linker script and memory map
+
+LOAD foo.o
+LOAD bar.o
+
+.interp
+ *(.interp)
+
+.note.gnu.property
+                0x0000000000000000       0x20
+ .note.gnu.property
+                0x0000000000000000       0x20 foo.o
+
+.note.gnu.build-id
+ *(.note.gnu.build-id)
+
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+.plt
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+.plt.sec
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+.text           0x0000000000000000        0x0
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+ .text          0x0000000000000000        0x0 foo.o
+ .text          0x0000000000000000        0x0 bar.o
+ *(.gnu.warning)
+
+.fini
+ *(SORT_NONE(.fini))
+
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+ .data          0x0000000000000000        0x8 foo.o
+                0x0000000000000000                foo
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+ .bss           0x0000000000000000       0x11 foo.o
+                0x0000000000000000                code
+ *fill*         0x0000000000000011        0xf 
+ .bss           0x0000000000000020       0x1e bar.o
+                0x0000000000000020                dead
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+.comment        0x0000000000000000       0x56
+ *(.comment)
+ .comment       0x0000000000000000       0x2b foo.o
+ .comment       0x000000000000002b       0x2b bar.o
+
+.note.GNU-stack
+                0x0000000000000000        0x0
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+                0x0000000000000000        0x0 foo.o
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+                0x0000000000000000        0x0 bar.o
+
+.gnu.build.attributes
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+
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+ *(.debug)
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+
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+ *(.gnu.attributes)
+OUTPUT(merge-1.o elf64-x86-64)
diff --git a/semestr-4/ask/lista8/merge-2.map b/semestr-4/ask/lista8/merge-2.map
new file mode 100644
index 0000000..2677803
--- /dev/null
+++ b/semestr-4/ask/lista8/merge-2.map
@@ -0,0 +1,301 @@
+
+Merging program properties
+
+
+Discarded input sections
+
+ .note.gnu.property
+                0x0000000000000000       0x20 foo.o
+
+Memory Configuration
+
+Name             Origin             Length             Attributes
+*default*        0x0000000000000000 0xffffffffffffffff
+
+Linker script and memory map
+
+LOAD bar.o
+LOAD foo.o
+
+.interp
+ *(.interp)
+
+.note.gnu.property
+                0x0000000000000000       0x20
+ .note.gnu.property
+                0x0000000000000000       0x20 bar.o
+
+.note.gnu.build-id
+ *(.note.gnu.build-id)
+
+.hash
+ *(.hash)
+
+.gnu.hash
+ *(.gnu.hash)
+
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+
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+.rela.text
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diff --git a/semestr-4/ask/lista8/mismatch-a.c b/semestr-4/ask/lista8/mismatch-a.c
new file mode 100644
index 0000000..39436f2
--- /dev/null
+++ b/semestr-4/ask/lista8/mismatch-a.c
@@ -0,0 +1,7 @@
+/* mismatch-a.c */
+void p2(void);
+
+int main() {
+  p2();
+  return 0;
+}
diff --git a/semestr-4/ask/lista8/mismatch-b.c b/semestr-4/ask/lista8/mismatch-b.c
new file mode 100644
index 0000000..451d5b3
--- /dev/null
+++ b/semestr-4/ask/lista8/mismatch-b.c
@@ -0,0 +1,8 @@
+/* mismatch-b.c */
+#include <stdio.h>
+
+char main;
+
+void p2() {
+  printf("0x%x\n", main);
+}
diff --git a/semestr-4/ask/lista8/odd.c b/semestr-4/ask/lista8/odd.c
new file mode 100644
index 0000000..c32961e
--- /dev/null
+++ b/semestr-4/ask/lista8/odd.c
@@ -0,0 +1,8 @@
+int is_even(long n);
+
+int is_odd(long n) {
+  if (n == 0)
+    return 0;
+  else
+    return is_even(n - 1);
+}
diff --git a/semestr-4/ask/lista8/relo3.c b/semestr-4/ask/lista8/relo3.c
new file mode 100644
index 0000000..6aca7b6
--- /dev/null
+++ b/semestr-4/ask/lista8/relo3.c
@@ -0,0 +1,15 @@
+int relo3(int val) {
+  switch (val) {
+    case 100:
+      return val;
+    case 101:
+      return val + 1;
+    case 103:
+    case 104:
+      return val + 3;
+    case 105:
+      return val + 5;
+    default:
+      return val + 6;
+  }
+}
diff --git a/semestr-4/ask/lista8/start.c b/semestr-4/ask/lista8/start.c
new file mode 100644
index 0000000..a875ace
--- /dev/null
+++ b/semestr-4/ask/lista8/start.c
@@ -0,0 +1,8 @@
+int is_even(long);
+
+void _start(void) {
+  asm volatile(
+    "syscall"
+    : /* no output */
+    : "a" (0x3c), "D" (is_even(42)));
+}
diff --git a/semestr-4/ask/lista8/str-a.c b/semestr-4/ask/lista8/str-a.c
new file mode 100644
index 0000000..3b0fb36
--- /dev/null
+++ b/semestr-4/ask/lista8/str-a.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+char *somestr(void);
+
+int main(void) {
+  char *s = somestr();
+  s[5] = '\0';
+  puts(s);
+  return 0;
+}
diff --git a/semestr-4/ask/lista8/str-b.c b/semestr-4/ask/lista8/str-b.c
new file mode 100644
index 0000000..50101cb
--- /dev/null
+++ b/semestr-4/ask/lista8/str-b.c
@@ -0,0 +1,9 @@
+#include <stdlib.h>
+#include <string.h>
+
+char *somestr(void) {
+  char *buf = malloc(sizeof("Hello, world!"));
+  strcpy(buf, "Hello, world!");  
+  return buf;
+}
+
diff --git a/semestr-4/ask/lista8/swap.c b/semestr-4/ask/lista8/swap.c
new file mode 100644
index 0000000..e1966fd
--- /dev/null
+++ b/semestr-4/ask/lista8/swap.c
@@ -0,0 +1,18 @@
+extern int buf[];
+
+int *bufp0 = &buf[0];
+static int *bufp1;
+
+static void incr() {
+  static int count = 0;
+  count++;
+}
+
+void swap() {
+  int temp;
+  incr();
+  bufp1 = &buf[1];
+  temp = *bufp0;
+  *bufp0 = *bufp1;
+  *bufp1 = temp;
+}