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Implement loading of linked ELF executables.

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This took me a couple hours. :^)

The ELF loading code now allocates a single region for the entire
file and creates virtual memory mappings for the sections as needed.

Very nice!
This commit is contained in:
Andreas Kling 2018-10-27 14:56:52 +02:00
parent 99ee6acd69
commit 9a71c7759a
16 changed files with 258 additions and 57 deletions
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7
Userland/ls.cpp
View file

@ -1,21 +1,24 @@
#include <LibC/stdio.h>
#include <LibC/unistd.h>
#include <LibC/dirent.h>
#include <LibC/errno.h>
#include <LibC/string.h>
int main(int c, char** v)
{
DIR* dirp = opendir(".");
if (!dirp) {
printf("opendir failed :(\n");
perror("opendir failed");
return 1;
}
char pathbuf[256];
while (auto* de = readdir(dirp)) {
sprintf(pathbuf, "%s", de->d_name);
stat st;
int rc = lstat(pathbuf, &st);
if (rc == -1) {
printf("Failed to stat '%s'\n", pathbuf);
printf("lstat(%s) failed: %s\n", pathbuf, strerror(errno));
return 2;
}