COMPUTER SYSTEMS&MOD MSGT/ET SA AC PKG
3rd Edition
ISBN: 9780134671123
Author: Bryant
Publisher: PEARSON
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Chapter 7, Problem 7.11HW
This program header in Figure 7.14 indicates that the data segment occupies 0x230 bytes in memory. However only the first 0x228 bytes of these come from the sections of the executable file. What causes this discrepancy?
Figure 7.14 Program header table for the example executable prog. off: offset in Object file; vaddr/paddr: memory address; align: alignment requirement; filesz: segment size in object file; mersz: segment size in memory; flags: run-time permissions.
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In an executable object file that is in executable and linkable format (ELF), which section defines the addresses of the stack and the heap?
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In python, rite a recursive function, displayFiles, that expects a pathname as an argument. The path name can be either the name of a file or the name of a directory. If the pathname refers to a file, its filepath is displayed, followed by its contents, like so:
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Test this function in a new program.
Contiguous Memory Allocation Algorithms
The program will read size of free memory partitions and size of processes from a text file and then will try to allocate a memory partition for each process using the first-fit, best-fit and worst-fit allocation algorithms.
The implementation completed in Python programming language.
The first line of the input file should contain the size of free memory partitions (in order) while the second line contains the size of processes (in order). Sample input file is shown below:
300,600,350,200,750,125
115,500,358,200,375
The program should read the name input file as command line input and produce a text file named “output.txt” with the following example output:
First-Fit Memory Allocation
-----------------------------------------------------------------------------------------------
start => 300 600 350 200 750 125
115 => 115* 185 600 350 200 750 125
500 => 115* 185 500* 100 350 200 750 125
358…
Chapter 7 Solutions
COMPUTER SYSTEMS&MOD MSGT/ET SA AC PKG
Ch. 7.5 - Prob. 7.1PPCh. 7.6 - Practice Problem 7.2 (solution page 718) In this...Ch. 7.6 - Practice Problem 7.3 (solution page 718) Let a and...Ch. 7.7 - Prob. 7.4PPCh. 7.7 - Prob. 7.5PPCh. 7 - This problem concerns the m. o module from Figure...Ch. 7 - Without changing any variable names, modify bar5.c...Ch. 7 - Prob. 7.8HWCh. 7 - Consider the following program, which consists of...Ch. 7 - Let a and b denote object modules or static...
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