Merge pull request #751 from lrusak/seo-picks

init: pre-create /dev/console
This commit is contained in:
MilhouseVH 2016-09-20 19:28:44 +01:00 committed by GitHub
commit 631bb96111
8 changed files with 4 additions and 149 deletions

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@ -1,21 +0,0 @@
diff --git a/init/main.c b/init/main.c
index 9484f4b..db55edd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -880,8 +880,14 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- pr_err("Warning: unable to open an initial console.\n");
+ char *console = "/dev_console";
+
+ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) {
+ sys_mknod(console, S_IFCHR|0600, (TTYAUX_MAJOR<<8)|1);
+ if (sys_open(console, O_RDWR, 0) < 0)
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
+ sys_unlink(console);
+ }
(void) sys_dup(0);
(void) sys_dup(0);

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@ -43,11 +43,12 @@ if [ "$INITRAMFS_PARTED_SUPPORT" = yes ]; then
fi
post_install() {
cd $ROOT/$BUILD/initramfs
( cd $ROOT/$BUILD/initramfs
if [ "$TARGET_ARCH" = "x86_64" -o "$TARGET_ARCH" = "powerpc64" ]; then
ln -s /lib $ROOT/$BUILD/initramfs/lib64
fi
mkdir -p $ROOT/$BUILD/image/
find . | cpio -H newc -ov -R 0:0 > $ROOT/$BUILD/image/initramfs.cpio
cd -
fakeroot -- sh -c \
"mkdir -p dev; mknod -m 600 dev/console c 5 1; find . | cpio -H newc -ov -R 0:0 > $ROOT/$BUILD/image/initramfs.cpio"
)
}

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@ -1,20 +0,0 @@
diff -Naur a/init/main.c b/init/main.c
--- a/init/main.c 2016-08-22 17:01:25.000000000 +0200
+++ b/init/main.c 2016-08-22 17:09:48.000000000 +0200
@@ -915,8 +915,14 @@
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- pr_err("Warning: unable to open an initial console.\n");
+ char *console = "/dev_console";
+
+ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) {
+ sys_mknod(console, S_IFCHR|0600, (TTYAUX_MAJOR<<8)|1);
+ if (sys_open(console, O_RDWR, 0) < 0)
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
+ sys_unlink(console);
+ }
(void) sys_dup(0);
(void) sys_dup(0);

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@ -1,21 +0,0 @@
diff --git a/init/main.c b/init/main.c
index 9484f4b..db55edd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -880,8 +880,14 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- pr_err("Warning: unable to open an initial console.\n");
+ char *console = "/dev_console";
+
+ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) {
+ sys_mknod(console, S_IFCHR|0600, (TTYAUX_MAJOR<<8)|1);
+ if (sys_open(console, O_RDWR, 0) < 0)
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
+ sys_unlink(console);
+ }
(void) sys_dup(0);
(void) sys_dup(0);

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@ -1,21 +0,0 @@
diff --git a/init/main.c b/init/main.c
index 9484f4b..db55edd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -880,8 +880,14 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- pr_err("Warning: unable to open an initial console.\n");
+ char *console = "/dev_console";
+
+ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) {
+ sys_mknod(console, S_IFCHR|0600, (TTYAUX_MAJOR<<8)|1);
+ if (sys_open(console, O_RDWR, 0) < 0)
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
+ sys_unlink(console);
+ }
(void) sys_dup(0);
(void) sys_dup(0);

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@ -1,21 +0,0 @@
diff --git a/init/main.c b/init/main.c
index 9484f4b..db55edd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -880,8 +880,14 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- pr_err("Warning: unable to open an initial console.\n");
+ char *console = "/dev_console";
+
+ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) {
+ sys_mknod(console, S_IFCHR|0600, (TTYAUX_MAJOR<<8)|1);
+ if (sys_open(console, O_RDWR, 0) < 0)
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
+ sys_unlink(console);
+ }
(void) sys_dup(0);
(void) sys_dup(0);

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@ -1,21 +0,0 @@
diff --git a/init/main.c b/init/main.c
index 9484f4b..db55edd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -880,8 +880,14 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- pr_err("Warning: unable to open an initial console.\n");
+ char *console = "/dev_console";
+
+ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) {
+ sys_mknod(console, S_IFCHR|0600, (TTYAUX_MAJOR<<8)|1);
+ if (sys_open(console, O_RDWR, 0) < 0)
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
+ sys_unlink(console);
+ }
(void) sys_dup(0);
(void) sys_dup(0);

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@ -1,21 +0,0 @@
diff --git a/init/main.c b/init/main.c
index 9484f4b..db55edd 100644
--- a/init/main.c
+++ b/init/main.c
@@ -880,8 +880,14 @@ static noinline void __init kernel_init_freeable(void)
do_basic_setup();
/* Open the /dev/console on the rootfs, this should never fail */
- if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
- pr_err("Warning: unable to open an initial console.\n");
+ char *console = "/dev_console";
+
+ if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0) {
+ sys_mknod(console, S_IFCHR|0600, (TTYAUX_MAJOR<<8)|1);
+ if (sys_open(console, O_RDWR, 0) < 0)
+ printk(KERN_WARNING "Warning: unable to open an initial console.\n");
+ sys_unlink(console);
+ }
(void) sys_dup(0);
(void) sys_dup(0);