test.c
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
void read_file ( FILE * file ) {
size_t len = 0;
char * line = NULL;
ssize_t bytes_read;
while ( ( bytes_read = getline ( &line, &len, file ) ) != -1 ) {
printf ( "%s", line );
}
free ( line );
}
int main ( void ) {
FILE * file;
file = fopen ( "/etc/fstab", "r" );
read_file ( file );
fclose ( file );
return 0;
}
tcc -run test.c
# /etc/fstab: static file system information.
Segmentation fault
Then swap lines from:
size_t len = 0;
char * line = NULL;
to:
char * line = NULL;
size_t len = 0;
tcc -run test.c
# /etc/fstab: static file system information.
#
# noatime turns off ...
So this swap fixed the problem. It is real magick
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