summaryrefslogtreecommitdiffstats
path: root/arch/um
diff options
context:
space:
mode:
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/Kconfig6
-rw-r--r--arch/um/Kconfig.char5
-rw-r--r--arch/um/drivers/cow_sys.h1
-rw-r--r--arch/um/drivers/daemon_user.c1
-rw-r--r--arch/um/drivers/fd.c1
-rw-r--r--arch/um/drivers/mcast_user.c1
-rw-r--r--arch/um/drivers/mmapper_kern.c3
-rw-r--r--arch/um/drivers/net_user.c1
-rw-r--r--arch/um/drivers/pcap_user.c1
-rw-r--r--arch/um/drivers/port_user.c1
-rw-r--r--arch/um/drivers/pty.c1
-rw-r--r--arch/um/drivers/slip_user.c1
-rw-r--r--arch/um/drivers/tty.c1
-rw-r--r--arch/um/drivers/xterm.c2
-rw-r--r--arch/um/include/um_malloc.h17
-rw-r--r--arch/um/include/user.h6
-rw-r--r--arch/um/include/user_util.h1
-rw-r--r--arch/um/kernel/irq.c1
-rw-r--r--arch/um/kernel/process.c1
-rw-r--r--arch/um/os-Linux/drivers/ethertap_user.c1
-rw-r--r--arch/um/os-Linux/helper.c54
-rw-r--r--arch/um/os-Linux/irq.c1
-rw-r--r--arch/um/os-Linux/main.c1
-rw-r--r--arch/um/os-Linux/sigio.c1
-rw-r--r--arch/um/os-Linux/time.c3
25 files changed, 76 insertions, 37 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 78fb619bdb7..5ac1f2963ae 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -1,3 +1,8 @@
+config DEFCONFIG_LIST
+ string
+ option defconfig_list
+ default "arch/$ARCH/defconfig"
+
# UML uses the generic IRQ sugsystem
config GENERIC_HARDIRQS
bool
@@ -52,6 +57,7 @@ menu "UML-specific options"
config MODE_TT
bool "Tracing thread support (DEPRECATED)"
default n
+ depends on BROKEN
help
This option controls whether tracing thread support is compiled
into UML. This option is largely obsolete, given that skas0 provides
diff --git a/arch/um/Kconfig.char b/arch/um/Kconfig.char
index 62d87b71179..e03e40c7aac 100644
--- a/arch/um/Kconfig.char
+++ b/arch/um/Kconfig.char
@@ -190,6 +190,11 @@ config HOSTAUDIO
tristate
default UML_SOUND
+#It is selected elsewhere, so kconfig would warn without this.
+config HW_RANDOM
+ tristate
+ default n
+
config UML_RANDOM
tristate "Hardware random number generator"
help
diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h
index 7a5b4afde69..c6a308464ac 100644
--- a/arch/um/drivers/cow_sys.h
+++ b/arch/um/drivers/cow_sys.h
@@ -5,6 +5,7 @@
#include "user_util.h"
#include "os.h"
#include "user.h"
+#include "um_malloc.h"
static inline void *cow_malloc(int size)
{
diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c
index 77954ea7704..310af0f1e49 100644
--- a/arch/um/drivers/daemon_user.c
+++ b/arch/um/drivers/daemon_user.c
@@ -17,6 +17,7 @@
#include "user_util.h"
#include "user.h"
#include "os.h"
+#include "um_malloc.h"
#define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c
index 108b7dafbd0..218aa0e9b79 100644
--- a/arch/um/drivers/fd.c
+++ b/arch/um/drivers/fd.c
@@ -12,6 +12,7 @@
#include "user_util.h"
#include "chan_user.h"
#include "os.h"
+#include "um_malloc.h"
struct fd_chan {
int fd;
diff --git a/arch/um/drivers/mcast_user.c b/arch/um/drivers/mcast_user.c
index 4d2bd39a85b..8138f5ea1bf 100644
--- a/arch/um/drivers/mcast_user.c
+++ b/arch/um/drivers/mcast_user.c
@@ -23,6 +23,7 @@
#include "user_util.h"
#include "user.h"
#include "os.h"
+#include "um_malloc.h"
#define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
diff --git a/arch/um/drivers/mmapper_kern.c b/arch/um/drivers/mmapper_kern.c
index 9a3b5daf625..df3516e47d4 100644
--- a/arch/um/drivers/mmapper_kern.c
+++ b/arch/um/drivers/mmapper_kern.c
@@ -95,7 +95,8 @@ static const struct file_operations mmapper_fops = {
.release = mmapper_release,
};
-static const struct miscdevice mmapper_dev = {
+/* No locking needed - only used (and modified) by below initcall and exitcall. */
+static struct miscdevice mmapper_dev = {
.minor = MISC_DYNAMIC_MINOR,
.name = "mmapper",
.fops = &mmapper_fops
diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c
index f3a3f8a29c7..0ffd7ac295d 100644
--- a/arch/um/drivers/net_user.c
+++ b/arch/um/drivers/net_user.c
@@ -18,6 +18,7 @@
#include "kern_util.h"
#include "net_user.h"
#include "os.h"
+#include "um_malloc.h"
int tap_open_common(void *dev, char *gate_addr)
{
diff --git a/arch/um/drivers/pcap_user.c b/arch/um/drivers/pcap_user.c
index 2ef641ded96..11921a7baa7 100644
--- a/arch/um/drivers/pcap_user.c
+++ b/arch/um/drivers/pcap_user.c
@@ -12,6 +12,7 @@
#include "net_user.h"
#include "pcap_user.h"
#include "user.h"
+#include "um_malloc.h"
#define MAX_PACKET (ETH_MAX_PACKET + ETH_HEADER_OTHER)
diff --git a/arch/um/drivers/port_user.c b/arch/um/drivers/port_user.c
index f2e8fc42ecc..bc6afaf74c1 100644
--- a/arch/um/drivers/port_user.c
+++ b/arch/um/drivers/port_user.c
@@ -19,6 +19,7 @@
#include "chan_user.h"
#include "port.h"
#include "os.h"
+#include "um_malloc.h"
struct port_chan {
int raw;
diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c
index abec620e838..829a5eca8c0 100644
--- a/arch/um/drivers/pty.c
+++ b/arch/um/drivers/pty.c
@@ -13,6 +13,7 @@
#include "user_util.h"
#include "kern_util.h"
#include "os.h"
+#include "um_malloc.h"
struct pty_chan {
void (*announce)(char *dev_name, int dev);
diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c
index 8460285c69a..7eddacc53b6 100644
--- a/arch/um/drivers/slip_user.c
+++ b/arch/um/drivers/slip_user.c
@@ -15,6 +15,7 @@
#include "slip.h"
#include "slip_common.h"
#include "os.h"
+#include "um_malloc.h"
void slip_user_init(void *data, void *dev)
{
diff --git a/arch/um/drivers/tty.c b/arch/um/drivers/tty.c
index 11de3ac1eb5..d95d64309ea 100644
--- a/arch/um/drivers/tty.c
+++ b/arch/um/drivers/tty.c
@@ -11,6 +11,7 @@
#include "user_util.h"
#include "user.h"
#include "os.h"
+#include "um_malloc.h"
struct tty_chan {
char *dev;
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c
index 386f8b95298..850221d9b4c 100644
--- a/arch/um/drivers/xterm.c
+++ b/arch/um/drivers/xterm.c
@@ -136,8 +136,6 @@ int xterm_open(int input, int output, int primary, void *d,
return(pid);
}
- if(data->stack == 0) free_stack(stack, 0);
-
if (data->direct_rcv) {
new = os_rcv_fd(fd, &data->helper_pid);
} else {
diff --git a/arch/um/include/um_malloc.h b/arch/um/include/um_malloc.h
new file mode 100644
index 00000000000..0363a9b53f8
--- /dev/null
+++ b/arch/um/include/um_malloc.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2005 Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_MALLOC_H__
+#define __UM_MALLOC_H__
+
+extern void *um_kmalloc(int size);
+extern void *um_kmalloc_atomic(int size);
+extern void kfree(const void *ptr);
+
+extern void *um_vmalloc(int size);
+extern void *um_vmalloc_atomic(int size);
+extern void vfree(void *ptr);
+
+#endif /* __UM_MALLOC_H__ */
diff --git a/arch/um/include/user.h b/arch/um/include/user.h
index 39f8c880107..acadce3f271 100644
--- a/arch/um/include/user.h
+++ b/arch/um/include/user.h
@@ -11,17 +11,11 @@ extern void panic(const char *fmt, ...)
extern int printk(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
extern void schedule(void);
-extern void *um_kmalloc(int size);
-extern void *um_kmalloc_atomic(int size);
-extern void kfree(void *ptr);
extern int in_aton(char *str);
extern int open_gdb_chan(void);
/* These use size_t, however unsigned long is correct on both i386 and x86_64. */
extern unsigned long strlcpy(char *, const char *, unsigned long);
extern unsigned long strlcat(char *, const char *, unsigned long);
-extern void *um_vmalloc(int size);
-extern void *um_vmalloc_atomic(int size);
-extern void vfree(void *ptr);
#endif
diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h
index 802d7842514..06625fefef3 100644
--- a/arch/um/include/user_util.h
+++ b/arch/um/include/user_util.h
@@ -52,7 +52,6 @@ extern int linux_main(int argc, char **argv);
extern void set_cmdline(char *cmd);
extern void input_cb(void (*proc)(void *), void *arg, int arg_len);
extern int get_pty(void);
-extern void *um_kmalloc(int size);
extern int switcheroo(int fd, int prot, void *from, void *to, int size);
extern void do_exec(int old_pid, int new_pid);
extern void tracer_panic(char *msg, ...)
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index ef259569fd8..5c1e611f628 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -31,6 +31,7 @@
#include "irq_kern.h"
#include "os.h"
#include "sigio.h"
+#include "um_malloc.h"
#include "misc_constants.h"
/*
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index fe6c64abda5..348b272bb76 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -46,6 +46,7 @@
#include "mode.h"
#include "mode_kern.h"
#include "choose-mode.h"
+#include "um_malloc.h"
/* This is a per-cpu array. A processor only modifies its entry and it only
* cares about its entry, so it's OK if another processor is modifying its
diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c
index f559bdf746e..863981ba146 100644
--- a/arch/um/os-Linux/drivers/ethertap_user.c
+++ b/arch/um/os-Linux/drivers/ethertap_user.c
@@ -20,6 +20,7 @@
#include "net_user.h"
#include "etap.h"
#include "os.h"
+#include "um_malloc.h"
#define MAX_PACKET ETH_MAX_PACKET
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index cd15b9df5b5..d13299cfa31 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -35,22 +35,23 @@ static int helper_child(void *arg)
char **argv = data->argv;
int errval;
- if(helper_pause){
+ if (helper_pause){
signal(SIGHUP, helper_hup);
pause();
}
- if(data->pre_exec != NULL)
+ if (data->pre_exec != NULL)
(*data->pre_exec)(data->pre_data);
execvp(argv[0], argv);
errval = -errno;
printk("helper_child - execve of '%s' failed - errno = %d\n", argv[0], errno);
os_write_file(data->fd, &errval, sizeof(errval));
kill(os_getpid(), SIGKILL);
- return(0);
+ return 0;
}
/* Returns either the pid of the child process we run or -E* on failure.
- * XXX The alloc_stack here breaks if this is called in the tracing thread */
+ * XXX The alloc_stack here breaks if this is called in the tracing thread, so
+ * we need to receive a preallocated stack (a local buffer is ok). */
int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv,
unsigned long *stack_out)
{
@@ -58,20 +59,21 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv,
unsigned long stack, sp;
int pid, fds[2], ret, n;
- if((stack_out != NULL) && (*stack_out != 0))
+ if ((stack_out != NULL) && (*stack_out != 0))
stack = *stack_out;
- else stack = alloc_stack(0, __cant_sleep());
- if(stack == 0)
+ else
+ stack = alloc_stack(0, __cant_sleep());
+ if (stack == 0)
return -ENOMEM;
ret = os_pipe(fds, 1, 0);
- if(ret < 0){
+ if (ret < 0) {
printk("run_helper : pipe failed, ret = %d\n", -ret);
goto out_free;
}
ret = os_set_exec_close(fds[1], 1);
- if(ret < 0){
+ if (ret < 0) {
printk("run_helper : setting FD_CLOEXEC failed, ret = %d\n",
-ret);
goto out_close;
@@ -83,7 +85,7 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv,
data.argv = argv;
data.fd = fds[1];
pid = clone(helper_child, (void *) sp, CLONE_VM | SIGCHLD, &data);
- if(pid < 0){
+ if (pid < 0) {
ret = -errno;
printk("run_helper : clone failed, errno = %d\n", errno);
goto out_close;
@@ -95,10 +97,10 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv,
/* Read the errno value from the child, if the exec failed, or get 0 if
* the exec succeeded because the pipe fd was set as close-on-exec. */
n = os_read_file(fds[0], &ret, sizeof(ret));
- if(n == 0)
+ if (n == 0) {
ret = pid;
- else {
- if(n < 0){
+ } else {
+ if (n < 0) {
printk("run_helper : read on pipe failed, ret = %d\n",
-n);
ret = n;
@@ -112,10 +114,9 @@ out_close:
close(fds[1]);
close(fds[0]);
out_free:
- if(stack_out == NULL)
+ if ((stack_out == NULL) || (*stack_out == 0))
free_stack(stack, 0);
- else *stack_out = stack;
- return(ret);
+ return ret;
}
int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags,
@@ -125,31 +126,32 @@ int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags,
int pid, status, err;
stack = alloc_stack(stack_order, __cant_sleep());
- if(stack == 0) return(-ENOMEM);
+ if (stack == 0)
+ return -ENOMEM;
sp = stack + (page_size() << stack_order) - sizeof(void *);
pid = clone(proc, (void *) sp, flags | SIGCHLD, arg);
- if(pid < 0){
+ if (pid < 0) {
err = -errno;
printk("run_helper_thread : clone failed, errno = %d\n",
errno);
return err;
}
- if(stack_out == NULL){
+ if (stack_out == NULL) {
CATCH_EINTR(pid = waitpid(pid, &status, 0));
- if(pid < 0){
+ if (pid < 0) {
err = -errno;
printk("run_helper_thread - wait failed, errno = %d\n",
errno);
pid = err;
}
- if(!WIFEXITED(status) || (WEXITSTATUS(status) != 0))
+ if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0))
printk("run_helper_thread - thread returned status "
"0x%x\n", status);
free_stack(stack, stack_order);
- }
- else *stack_out = stack;
- return(pid);
+ } else
+ *stack_out = stack;
+ return pid;
}
int helper_wait(int pid)
@@ -157,9 +159,9 @@ int helper_wait(int pid)
int ret;
CATCH_EINTR(ret = waitpid(pid, NULL, WNOHANG));
- if(ret < 0){
+ if (ret < 0) {
ret = -errno;
printk("helper_wait : waitpid failed, errno = %d\n", errno);
}
- return(ret);
+ return ret;
}
diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index a97206df5b5..d46b818c131 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -18,6 +18,7 @@
#include "sigio.h"
#include "irq_user.h"
#include "os.h"
+#include "um_malloc.h"
static struct pollfd *pollfds = NULL;
static int pollfds_num = 0;
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index d1c5670787d..685feaab65d 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -23,6 +23,7 @@
#include "choose-mode.h"
#include "uml-config.h"
#include "os.h"
+#include "um_malloc.h"
/* Set in set_stklim, which is called from main and __wrap_malloc.
* __wrap_malloc only calls it if main hasn't started.
diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c
index f6457765b17..925a65240cf 100644
--- a/arch/um/os-Linux/sigio.c
+++ b/arch/um/os-Linux/sigio.c
@@ -19,6 +19,7 @@
#include "user_util.h"
#include "sigio.h"
#include "os.h"
+#include "um_malloc.h"
/* Protected by sigio_lock(), also used by sigio_cleanup, which is an
* exitcall.
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 38be096e750..2115b8beb54 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -16,6 +16,7 @@
#include "process.h"
#include "kern_constants.h"
#include "os.h"
+#include "uml-config.h"
int set_interval(int is_virtual)
{
@@ -30,7 +31,7 @@ int set_interval(int is_virtual)
return 0;
}
-#ifdef CONFIG_MODE_TT
+#ifdef UML_CONFIG_MODE_TT
void enable_timer(void)
{
set_interval(1);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-02-22 10:52:03 +0000