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Diffstat (limited to 'sys/compat/linux/linux_util.c')
-rw-r--r--sys/compat/linux/linux_util.c112
1 files changed, 11 insertions, 101 deletions
diff --git a/sys/compat/linux/linux_util.c b/sys/compat/linux/linux_util.c
index 76c210c..ac92c28 100644
--- a/sys/compat/linux/linux_util.c
+++ b/sys/compat/linux/linux_util.c
@@ -53,48 +53,11 @@ __FBSDID("$FreeBSD$");
#include <machine/stdarg.h>
#include <compat/linux/linux_util.h>
-#ifdef COMPAT_LINUX32
-#include <machine/../linux32/linux.h>
-#else
-#include <machine/../linux/linux.h>
-#endif
-#include <compat/linux/linux_dtrace.h>
+MALLOC_DEFINE(M_LINUX, "linux", "Linux mode structures");
const char linux_emul_path[] = "/compat/linux";
-/* DTrace init */
-LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
-
-/**
- * DTrace probes in this module.
- */
-LIN_SDT_PROBE_DEFINE5(util, linux_emul_convpath, entry, "const char *",
- "enum uio_seg", "char **", "int", "int");
-LIN_SDT_PROBE_DEFINE1(util, linux_emul_convpath, return, "int");
-LIN_SDT_PROBE_DEFINE1(util, linux_msg, entry, "const char *");
-LIN_SDT_PROBE_DEFINE0(util, linux_msg, return);
-LIN_SDT_PROBE_DEFINE2(util, linux_driver_get_name_dev, entry, "device_t",
- "const char *");
-LIN_SDT_PROBE_DEFINE0(util, linux_driver_get_name_dev, nullcall);
-LIN_SDT_PROBE_DEFINE1(util, linux_driver_get_name_dev, return, "char *");
-LIN_SDT_PROBE_DEFINE3(util, linux_driver_get_major_minor, entry, "char *",
- "int *", "int *");
-LIN_SDT_PROBE_DEFINE0(util, linux_driver_get_major_minor, nullcall);
-LIN_SDT_PROBE_DEFINE1(util, linux_driver_get_major_minor, notfound, "char *");
-LIN_SDT_PROBE_DEFINE3(util, linux_driver_get_major_minor, return, "int",
- "int", "int");
-LIN_SDT_PROBE_DEFINE0(util, linux_get_char_devices, entry);
-LIN_SDT_PROBE_DEFINE1(util, linux_get_char_devices, return, "char *");
-LIN_SDT_PROBE_DEFINE1(util, linux_free_get_char_devices, entry, "char *");
-LIN_SDT_PROBE_DEFINE0(util, linux_free_get_char_devices, return);
-LIN_SDT_PROBE_DEFINE1(util, linux_device_register_handler, entry,
- "struct linux_device_handler *");
-LIN_SDT_PROBE_DEFINE1(util, linux_device_register_handler, return, "int");
-LIN_SDT_PROBE_DEFINE1(util, linux_device_unregister_handler, entry,
- "struct linux_device_handler *");
-LIN_SDT_PROBE_DEFINE1(util, linux_device_unregister_handler, return, "int");
-
/*
* Search an alternate path before passing pathname arguments on to
* system calls. Useful for keeping a separate 'emulation tree'.
@@ -108,13 +71,9 @@ linux_emul_convpath(struct thread *td, const char *path, enum uio_seg pathseg,
{
int retval;
- LIN_SDT_PROBE5(util, linux_emul_convpath, entry, path, pathseg, pbuf,
- cflag, dfd);
-
retval = kern_alternate_path(td, linux_emul_path, path, pathseg, pbuf,
cflag, dfd);
- LIN_SDT_PROBE1(util, linux_emul_convpath, return, retval);
return (retval);
}
@@ -124,16 +83,12 @@ linux_msg(const struct thread *td, const char *fmt, ...)
va_list ap;
struct proc *p;
- LIN_SDT_PROBE1(util, linux_msg, entry, fmt);
-
p = td->td_proc;
printf("linux: pid %d (%s): ", (int)p->p_pid, p->p_comm);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
-
- LIN_SDT_PROBE0(util, linux_msg, return);
}
struct device_element
@@ -156,24 +111,14 @@ linux_driver_get_name_dev(device_t dev)
struct device_element *de;
const char *device_name = device_get_name(dev);
- LIN_SDT_PROBE2(util, linux_driver_get_name_dev, entry, dev,
- device_name);
-
- if (device_name == NULL) {
- LIN_SDT_PROBE0(util, linux_driver_get_name_dev, nullcall);
- LIN_SDT_PROBE1(util, linux_driver_get_name_dev, return, NULL);
+ if (device_name == NULL)
return NULL;
- }
TAILQ_FOREACH(de, &devices, list) {
- if (strcmp(device_name, de->entry.bsd_driver_name) == 0) {
- LIN_SDT_PROBE1(util, linux_driver_get_name_dev, return,
- de->entry.linux_driver_name);
+ if (strcmp(device_name, de->entry.bsd_driver_name) == 0)
return (de->entry.linux_driver_name);
- }
}
- LIN_SDT_PROBE1(util, linux_driver_get_name_dev, return, NULL);
- return NULL;
+ return (NULL);
}
int
@@ -181,15 +126,8 @@ linux_driver_get_major_minor(const char *node, int *major, int *minor)
{
struct device_element *de;
- LIN_SDT_PROBE3(util, linux_driver_get_major_minor, entry, node, major,
- minor);
-
- if (node == NULL || major == NULL || minor == NULL) {
- LIN_SDT_PROBE0(util, linux_driver_get_major_minor, nullcall);
- LIN_SDT_PROBE3(util, linux_driver_get_major_minor, return, 1,
- 0, 0);
+ if (node == NULL || major == NULL || minor == NULL)
return 1;
- }
if (strlen(node) > strlen("pts/") &&
strncmp(node, "pts/", strlen("pts/")) == 0) {
@@ -204,25 +142,18 @@ linux_driver_get_major_minor(const char *node, int *major, int *minor)
*major = 136 + (devno / 256);
*minor = devno % 256;
- LIN_SDT_PROBE3(util, linux_driver_get_major_minor, return, 0,
- *major, *minor);
- return 0;
+ return (0);
}
TAILQ_FOREACH(de, &devices, list) {
if (strcmp(node, de->entry.bsd_device_name) == 0) {
*major = de->entry.linux_major;
*minor = de->entry.linux_minor;
-
- LIN_SDT_PROBE3(util, linux_driver_get_major_minor,
- return, 0, *major, *minor);
- return 0;
+ return (0);
}
}
- LIN_SDT_PROBE1(util, linux_driver_get_major_minor, notfound, node);
- LIN_SDT_PROBE3(util, linux_driver_get_major_minor, return, 1, 0, 0);
- return 1;
+ return (1);
}
char *
@@ -233,8 +164,6 @@ linux_get_char_devices()
char formated[256];
int current_size = 0, string_size = 1024;
- LIN_SDT_PROBE0(util, linux_get_char_devices, entry);
-
string = malloc(string_size, M_LINUX, M_WAITOK);
string[0] = '\000';
last = "";
@@ -261,19 +190,14 @@ linux_get_char_devices()
}
}
- LIN_SDT_PROBE1(util, linux_get_char_devices, return, string);
- return string;
+ return (string);
}
void
linux_free_get_char_devices(char *string)
{
- LIN_SDT_PROBE1(util, linux_get_char_devices, entry, string);
-
free(string, M_LINUX);
-
- LIN_SDT_PROBE0(util, linux_get_char_devices, return);
}
static int linux_major_starting = 200;
@@ -283,13 +207,8 @@ linux_device_register_handler(struct linux_device_handler *d)
{
struct device_element *de;
- LIN_SDT_PROBE1(util, linux_device_register_handler, entry, d);
-
- if (d == NULL) {
- LIN_SDT_PROBE1(util, linux_device_register_handler, return,
- EINVAL);
+ if (d == NULL)
return (EINVAL);
- }
de = malloc(sizeof(*de), M_LINUX, M_WAITOK);
if (d->linux_major < 0) {
@@ -300,7 +219,6 @@ linux_device_register_handler(struct linux_device_handler *d)
/* Add the element to the list, sorted on span. */
TAILQ_INSERT_TAIL(&devices, de, list);
- LIN_SDT_PROBE1(util, linux_device_register_handler, return, 0);
return (0);
}
@@ -309,25 +227,17 @@ linux_device_unregister_handler(struct linux_device_handler *d)
{
struct device_element *de;
- LIN_SDT_PROBE1(util, linux_device_unregister_handler, entry, d);
-
- if (d == NULL) {
- LIN_SDT_PROBE1(util, linux_device_unregister_handler, return,
- EINVAL);
+ if (d == NULL)
return (EINVAL);
- }
TAILQ_FOREACH(de, &devices, list) {
if (bcmp(d, &de->entry, sizeof(*d)) == 0) {
TAILQ_REMOVE(&devices, de, list);
free(de, M_LINUX);
- LIN_SDT_PROBE1(util, linux_device_unregister_handler,
- return, 0);
return (0);
}
}
- LIN_SDT_PROBE1(util, linux_device_unregister_handler, return, EINVAL);
return (EINVAL);
}
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