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We want to allow builds in chroots that lack /bin/sh. Thus, system(3)
and popen(3) need to be tweaked to use the right shell. For the bootstrap
glibc, we just use whatever `sh' can be found in $PATH. The final glibc
instead uses the hard-coded absolute file name of `bash'.
The second part that touches fcntl-linux.h reverts a change from glibc-2.25
which would require the statically compiled glibc used in bootstrapping to
depend on the linux kernel headers.
--- a/sysdeps/posix/system.c
+++ b/sysdeps/posix/system.c
@@ -134,7 +134,7 @@ do_system (const char *line)
INIT_LOCK ();
/* Exec the shell. */
- (void) __execve (SHELL_PATH, (char *const *) new_argv, __environ);
+ (void) __execvpe (SHELL_NAME, (char *const *) new_argv, __environ);
_exit (127);
}
else if (pid < (pid_t) 0)
--- b/libio/iopopen.c 2012-06-30 21:12:34.000000000 +0200
+++ b/libio/iopopen.c 2012-12-19 12:52:29.000000000 +0100
@@ -226,7 +226,7 @@ _IO_new_proc_open (fp, command, mode)
_IO_close (fd);
}
- _IO_execl ("/bin/sh", "sh", "-c", command, (char *) 0);
+ execlp ("sh", "sh", "-c", command, (char *) 0);
_IO__exit (127);
}
_IO_close (child_end);
--- a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
@@ -318,7 +318,15 @@ struct f_owner_ex
/* Flags for fallocate. */
+# define FALLOC_FL_KEEP_SIZE 1 /* Don't extend size of file
+ even if offset + len is
+ greater than file size. */
+# define FALLOC_FL_PUNCH_HOLE 2 /* Create a hole in the file. */
+# define FALLOC_FL_COLLAPSE_RANGE 8 /* Remove a range of a file
+ without leaving a
+ hole. */
+# define FALLOC_FL_ZERO_RANGE 16 /* Convert a range of a
+ file to zeros. */
-# include <linux/falloc.h>
/* File handle structure. */
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