PPT-Malloc

Recitation Ben Spinelli Recitation 11 November 9 2015 Agenda Macros Inline functions Quick pointer review Malloc Macros Inline Functions Macros Precompile time Define constants. scanfd val Carnegie Mellon return y Ax int matvecint A int x int y mallocNsizeofint int i j for i0 i for j0 j yi Aijxj return y brPage 5br Carnegie Mellon int p p mallocNsizeofint for i0 i pi mallocMsizeofint Carnegie Mellon int p p mallocN Basic Concepts. 15-. 213: . Introduction to Computer Systems . 17. th. Lecture, Oct. 21, 2010. Instructors:. . Randy Bryant and Dave . O’Hallaron. Today. Basic concepts. Implicit free lists. Dynamic Memory Allocation . Exception or Exploit?. Jared . DeMott. Quote to Remember. “Bugs are found in a variety of ways. But good exploits are created in a debugger, by someone who knows the trade well.”. What am I talking about?. 3+#25,$4(!!-44.&'$/+#2(!!1@)'I77.4'@+OI*+@+6'74X.4)/4',L' T&C*#(2+%*(2*@7*#'*(+:(malloc($#9(free(,*@7*2520(!!'$%&'$(&'"""&'$)&'"""'&'$*+('!!8)37(9::+):$-)(0$",*$!(;2((!!'malloc(p)'+47.F*7'I)'@'OF,/ Some . Advanced Topics. 15-213 / 18-213: Introduction to Computer Systems. 27. th. Lecture, Dec.. 4, 2012. Instructors:. . Dave O’Hallaron, Greg Ganger, and Greg . Kesden. Today. Library . interpositioning. Fall 07/08 – Lecture Notes # 5b. Outline. Dynamic Memory Allocation. malloc. ( ), free( ) . and . calloc. ( ) . functions. Dynamically Allocated Arrays. DYNAMIC MEMORY . ALLOCATION. DYNAMIC . MEMORY . Slides adapted from Bryant . and . . O’Hallaron. Today. Linking. Case study: Library . interpositioning. Example C Program. int. . sum. (. int. *. a. , . int. . n. );. int. . array. [2] = {1, 2};. Structures, Pointers, and the Heap. Dynamic Memory with . Malloc. and Free. zyBook: 9.7, 9.8, 9.9, 9.10, 9.14, 9.15. Structures. Don’t forget the semicolon;. This only defines a type. . It does not allocate storage. Recitation. Section K (Kevin Su). November 5. th. , 2012. Agenda. Macros / Inline functions. Quick pointer review. Malloc. Macros / Inline Functions. Macros. Runtime, compile-time, or pre-compile time?. Instructor: TA(s). Understanding Your Code. Sketch out the heap. Add Instrumentation. Use tools. Sketch out the Heap. Start with a heap, in this case implicit list. Now try something, in this case, . 351 . Spring 2017. Instructor:. . Ruth Anderson. Teaching Assistants:. Dylan Johnson. Kevin Bi. Linxing. Preston Jiang. Cody . Ohlsen. Yufang. Sun. Joshua Curtis. Administrivia. Homework 5 – Due Wed 5/31. Aishwarya . Prem. . Renu. . 16 Feb 2015. Agenda. Buffer lab – Due TOMORROW!. Cache lab – Out TOMORROW! Due 26. th. Feb. C Assessment . Using the C Standard Library. Compilation (. gcc. and make). 11. th. Lecture, Sept. 30, 2010. Instructors:. . Randy Bryant and Dave . O’Hallaron. Today. Linking. Case study: Library . interpositioning. Example C Program. int. buf[2] = {1, 2};. . int. main() . Erik . Kesa. Dynamic memory allocation with malloc. void. * . malloc. (. size_t. size); . // Allocates a memory block, and returns the pointer to the beginning. Example . malloc_example.c. :. . Linked list.