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freebsd-dev/sys/kern/kern_module.c

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This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
/*-
* Copyright (c) 1997 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
Use __FBSDID().
2003-06-11 00:56:59 +00:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
Implement a new generic mechanism for attaching handler functions to events, in order to pave the way for removing a number of the ad-hoc implementations currently in use. Retire the at_shutdown family of functions and replace them with new event handler lists. Rework kern_shutdown.c to take greater advantage of the use of event handlers. Reviewed by: green
1999-08-21 06:24:40 +00:00
#include <sys/eventhandler.h>
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
#include <sys/malloc.h>
#include <sys/sysproto.h>
#include <sys/sysent.h>
Move the "retval" (3rd) parameter from all syscall functions and put it in struct proc instead. This fixes a boatload of compiler warning, and removes a lot of cruft from the sources. I have not removed the /*ARGSUSED*/, they will require some looking at. libkvm, ps and other userland struct proc frobbing programs will need recompiled.
1997-11-06 19:29:57 +00:00
#include <sys/proc.h>
Giant Pushdown. Saved the worst P4 tree breakage for last. reboot() getpriority() setpriority() rtprio() osetrlimit() ogetrlimit() setrlimit() getrlimit() getrusage() getpid() getppid() getpgrp() getpgid() getsid() getgid() getegid() getgroups() setsid() setpgid() setuid() seteuid() setgid() setegid() setgroups() setreuid() setregid() setresuid() setresgid() getresuid() getresgid () __setugid() getlogin() setlogin() modnext() modfnext() modstat() modfind() kldload() kldunload() kldfind() kldnext() kldstat() kldfirstmod() kldsym() getdtablesize() dup2() dup() fcntl() close() ofstat() fstat() nfsstat() fpathconf() flock()
2001-09-01 19:04:37 +00:00
#include <sys/lock.h>
#include <sys/mutex.h>
Don't bother calling the module event handlers from module_shutdown() in the shutdown_final state if the RB_NOSYNC flag is set. The specific motivation in this case is that a system panic in an interrupt context results in a call to module_shutdown(), which calls g_modevent(), which calls g_malloc(..., M_WAITOK), which results in a second panic. While g_modevent() could be fixed to not call malloc() for MOD_SHUTDOWN events (which it doesn't handle in any case), it is probably also a good idea to entirely skip the execution of the module shutdown handlers after a panic. This may be a MFC candidate for RELENG_5.
2004-08-20 21:47:48 +00:00
#include <sys/reboot.h>
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
#include <sys/sx.h>
#include <sys/module.h>
#include <sys/linker.h>
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
Staticize some malloc M_ instances.
2000-12-08 20:09:00 +00:00
static MALLOC_DEFINE(M_MODULE, "module", "module data structures");
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
Back out the previous change to the queue(3) interface. It was not discussed and should probably not happen. Requested by: msmith and others
2000-05-26 02:09:24 +00:00
typedef TAILQ_HEAD(, module) modulelist_t;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
struct module {
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
TAILQ_ENTRY(module) link; /* chain together all modules */
TAILQ_ENTRY(module) flink; /* all modules in a file */
struct linker_file *file; /* file which contains this module */
int refs; /* reference count */
int id; /* unique id number */
char *name; /* module name */
modeventhand_t handler; /* event handler */
void *arg; /* argument for handler */
modspecific_t data; /* module specific data */
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
};
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
#define MOD_EVENT(mod, type) (mod)->handler((mod), (type), (mod)->arg)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
static modulelist_t modules;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
struct sx modules_sx;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
static int nextid = 1;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
static void module_shutdown(void *, int);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
A hack basically.. We have a bunch of code that used to call devsw_module_handler() indirectly and not use the chain arguments. To eliminate this indirection via that function (which does nothing now) without duplicating a modevent handler into all the routines that don't presently have one, supply a NOP (do nothing, return OK) routine which is functionally equivalent to what's there now. This is a hack and is still wrong, because there doesn't appear to be anything to reclaim resources on an unload of a module with one of these in it. I'm not sure whether to make the NOP handler refuse a MOD_UNLOAD event or what.
1999-11-08 06:53:30 +00:00
static int
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
modevent_nop(module_t mod, int what, void *arg)
A hack basically.. We have a bunch of code that used to call devsw_module_handler() indirectly and not use the chain arguments. To eliminate this indirection via that function (which does nothing now) without duplicating a modevent handler into all the routines that don't presently have one, supply a NOP (do nothing, return OK) routine which is functionally equivalent to what's there now. This is a hack and is still wrong, because there doesn't appear to be anything to reclaim resources on an unload of a module with one of these in it. I'm not sure whether to make the NOP handler refuse a MOD_UNLOAD event or what.
1999-11-08 06:53:30 +00:00
{
A module with no modevent function gets modevent_nop() as default. Until now the function has just returned zero for any event, but that is downright wrong for MOD_UNLOAD and not very useful for any future events we add where it may be crucial to be able to tell if the event was unhandled or successful. Change the function to return as follows: MOD_LOAD -> 0 MOD_UNLOAD -> EBUSY anything else -> EOPNOTSUPP
2004-07-14 22:37:36 +00:00
switch(what) {
case MOD_LOAD:
return (0);
case MOD_UNLOAD:
return (EBUSY);
default:
return (EOPNOTSUPP);
}
A hack basically.. We have a bunch of code that used to call devsw_module_handler() indirectly and not use the chain arguments. To eliminate this indirection via that function (which does nothing now) without duplicating a modevent handler into all the routines that don't presently have one, supply a NOP (do nothing, return OK) routine which is functionally equivalent to what's there now. This is a hack and is still wrong, because there doesn't appear to be anything to reclaim resources on an unload of a module with one of these in it. I'm not sure whether to make the NOP handler refuse a MOD_UNLOAD event or what.
1999-11-08 06:53:30 +00:00
}
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
static void
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_init(void *arg)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
sx_init(&modules_sx, "module subsystem sx lock");
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
TAILQ_INIT(&modules);
Move the MOD_SHUTDOWN event from shutdown_post_sync to shutdown_final, so that entities that want to use the post_sync hook to write stuff to devices and other tidy-up can do so before the device tree is shot down. eg: da doing a SYNC_CACHE etc. This should get crashdumps working on mpt devices again, and stops the ia64 boxes locking up on regular shutdown when da tries to issue the scsi commands to mpt. Obtained from: njl, gibbs
2003-01-07 22:24:13 +00:00
EVENTHANDLER_REGISTER(shutdown_final, module_shutdown, NULL,
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
SHUTDOWN_PRI_DEFAULT);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
SYSINIT(module, SI_SUB_KLD, SI_ORDER_FIRST, module_init, 0)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
static void
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_shutdown(void *arg1, int arg2)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_t mod;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
Don't bother calling the module event handlers from module_shutdown() in the shutdown_final state if the RB_NOSYNC flag is set. The specific motivation in this case is that a system panic in an interrupt context results in a call to module_shutdown(), which calls g_modevent(), which calls g_malloc(..., M_WAITOK), which results in a second panic. While g_modevent() could be fixed to not call malloc() for MOD_SHUTDOWN events (which it doesn't handle in any case), it is probably also a good idea to entirely skip the execution of the module shutdown handlers after a panic. This may be a MFC candidate for RELENG_5.
2004-08-20 21:47:48 +00:00
if (arg2 & RB_NOSYNC)
return;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
TAILQ_FOREACH(mod, &modules, link)
MOD_EVENT(mod, MOD_SHUTDOWN);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SUNLOCK;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
void
More -Wall / -Wcast-qual cleanup. Also, EXEC_SET can't use C_DECLARE_MODULE due to the linker_file_sysinit() function making modifications to the data.
1999-01-29 08:36:45 +00:00
module_register_init(const void *arg)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
const moduledata_t *data = (const moduledata_t *)arg;
int error;
module_t mod;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
mod = module_lookupbyname(data->name);
if (mod == NULL)
- Whitespace fixup left over from previous commit. - Remove bogus cast. Submitted by: bde
2002-02-22 13:33:10 +00:00
panic("module_register_init: module named %s not found\n",
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
data->name);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SUNLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
error = MOD_EVENT(mod, MOD_LOAD);
if (error) {
MOD_EVENT(mod, MOD_UNLOAD);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_release(mod);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XUNLOCK;
Fix a warning. Do not assume pointer == long.
2002-02-26 00:55:27 +00:00
printf("module_register_init: MOD_LOAD (%s, %p, %p) error"
" %d\n", data->name, (void *)data->evhand, data->priv,
- Whitespace fixup left over from previous commit. - Remove bogus cast. Submitted by: bde
2002-02-22 13:33:10 +00:00
error);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
}
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
int
First stages of a module dependency cleanup. This part fixes a particularly annoying hack, namely having the linker bash the moduledata to set the container pointer, preventing it being const. In the process, a stack of warnings were fixed and will probably allow a revisit of the const C_SYSINIT() changes. This explicitly registers modules in files or preload areas with the module system first, and let them initialize via SYSINIT/DECLARE_MODULE later in their SI_ORDER_xxx order. The kludge of finding the containing file is no longer needed since the registration of modules onto the modules list is done in the context of initializing the linker file.
1999-05-08 13:01:59 +00:00
module_register(const moduledata_t *data, linker_file_t container)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
size_t namelen;
module_t newmod;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
newmod = module_lookupbyname(data->name);
if (newmod != NULL) {
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SUNLOCK;
- Whitespace fixup left over from previous commit. - Remove bogus cast. Submitted by: bde
2002-02-22 13:33:10 +00:00
printf("module_register: module %s already exists!\n",
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
data->name);
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (EEXIST);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
}
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SUNLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
namelen = strlen(data->name) + 1;
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
newmod = malloc(sizeof(struct module) + namelen, M_MODULE, M_WAITOK);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
if (newmod == NULL)
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (ENOMEM);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
newmod->refs = 1;
newmod->id = nextid++;
newmod->name = (char *)(newmod + 1);
strcpy(newmod->name, data->name);
newmod->handler = data->evhand ? data->evhand : modevent_nop;
newmod->arg = data->priv;
bzero(&newmod->data, sizeof(newmod->data));
TAILQ_INSERT_TAIL(&modules, newmod, link);
if (container)
TAILQ_INSERT_TAIL(&container->modules, newmod, flink);
newmod->file = container;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XUNLOCK;
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (0);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
void
module_reference(module_t mod)
{
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XLOCK_ASSERT;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
MOD_DPF(REFS, ("module_reference: before, refs=%d\n", mod->refs));
mod->refs++;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
void
module_release(module_t mod)
{
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XLOCK_ASSERT;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
if (mod->refs <= 0)
panic("module_release: bad reference count");
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
MOD_DPF(REFS, ("module_release: before, refs=%d\n", mod->refs));
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
mod->refs--;
if (mod->refs == 0) {
TAILQ_REMOVE(&modules, mod, link);
if (mod->file)
TAILQ_REMOVE(&mod->file->modules, mod, flink);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XUNLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
free(mod, M_MODULE);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XLOCK;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
}
module_t
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_lookupbyname(const char *name)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_t mod;
int err;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_LOCK_ASSERT;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
TAILQ_FOREACH(mod, &modules, link) {
err = strcmp(mod->name, name);
if (err == 0)
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (mod);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
}
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (NULL);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
module_t
module_lookupbyid(int modid)
{
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
module_t mod;
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_LOCK_ASSERT;
TAILQ_FOREACH(mod, &modules, link)
if (mod->id == modid)
return(mod);
return (NULL);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
int
Give kldunload a -f(orce) argument. Add a MOD_QUIESCE event for modules. This should return error (EBUSY) of the module is in use. MOD_UNLOAD should now only fail if it is impossible (as opposed to inconvenient) to unload the module. Valid reasons are memory references into the module which cannot be tracked down and eliminated. When kldunloading, we abandon if MOD_UNLOAD fails, and if -force is not given, MOD_QUIESCE failing will also prevent the unload. For backwards compatibility, we treat EOPNOTSUPP from MOD_QUIESCE as success. Document that modules should return EOPNOTSUPP for unknown events.
2004-07-13 19:36:59 +00:00
module_unload(module_t mod, int flags)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
Give kldunload a -f(orce) argument. Add a MOD_QUIESCE event for modules. This should return error (EBUSY) of the module is in use. MOD_UNLOAD should now only fail if it is impossible (as opposed to inconvenient) to unload the module. Valid reasons are memory references into the module which cannot be tracked down and eliminated. When kldunloading, we abandon if MOD_UNLOAD fails, and if -force is not given, MOD_QUIESCE failing will also prevent the unload. For backwards compatibility, we treat EOPNOTSUPP from MOD_QUIESCE as success. Document that modules should return EOPNOTSUPP for unknown events.
2004-07-13 19:36:59 +00:00
int error;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
Give kldunload a -f(orce) argument. Add a MOD_QUIESCE event for modules. This should return error (EBUSY) of the module is in use. MOD_UNLOAD should now only fail if it is impossible (as opposed to inconvenient) to unload the module. Valid reasons are memory references into the module which cannot be tracked down and eliminated. When kldunloading, we abandon if MOD_UNLOAD fails, and if -force is not given, MOD_QUIESCE failing will also prevent the unload. For backwards compatibility, we treat EOPNOTSUPP from MOD_QUIESCE as success. Document that modules should return EOPNOTSUPP for unknown events.
2004-07-13 19:36:59 +00:00
error = MOD_EVENT(mod, MOD_QUIESCE);
Do a pass over all modules in the kernel and make them return EOPNOTSUPP for unknown events. A number of modules return EINVAL in this instance, and I have left those alone for now and instead taught MOD_QUIESCE to accept this as "didn't do anything".
2004-07-15 08:26:07 +00:00
if (error == EOPNOTSUPP || error == EINVAL)
Give kldunload a -f(orce) argument. Add a MOD_QUIESCE event for modules. This should return error (EBUSY) of the module is in use. MOD_UNLOAD should now only fail if it is impossible (as opposed to inconvenient) to unload the module. Valid reasons are memory references into the module which cannot be tracked down and eliminated. When kldunloading, we abandon if MOD_UNLOAD fails, and if -force is not given, MOD_QUIESCE failing will also prevent the unload. For backwards compatibility, we treat EOPNOTSUPP from MOD_QUIESCE as success. Document that modules should return EOPNOTSUPP for unknown events.
2004-07-13 19:36:59 +00:00
error = 0;
if (flags == LINKER_UNLOAD_NORMAL && error != 0)
return (error);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
return (MOD_EVENT(mod, MOD_UNLOAD));
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
int
module_getid(module_t mod)
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_LOCK_ASSERT;
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (mod->id);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
module_t
module_getfnext(module_t mod)
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_LOCK_ASSERT;
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (TAILQ_NEXT(mod, flink));
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
Implement a mechanism for a module to report a small amount of module specific data back to the user via kldstat(2). Use that mechanism in the syscall handler to report the syscall number used.
1999-01-09 14:59:50 +00:00
void
module_setspecific(module_t mod, modspecific_t *datap)
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_XLOCK_ASSERT;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
mod->data = *datap;
Implement a mechanism for a module to report a small amount of module specific data back to the user via kldstat(2). Use that mechanism in the syscall handler to report the syscall number used.
1999-01-09 14:59:50 +00:00
}
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
/*
* Syscalls.
*/
Giant Pushdown. Saved the worst P4 tree breakage for last. reboot() getpriority() setpriority() rtprio() osetrlimit() ogetrlimit() setrlimit() getrlimit() getrusage() getpid() getppid() getpgrp() getpgid() getsid() getgid() getegid() getgroups() setsid() setpgid() setuid() seteuid() setgid() setegid() setgroups() setreuid() setregid() setresuid() setresgid() getresuid() getresgid () __setugid() getlogin() setlogin() modnext() modfnext() modstat() modfind() kldload() kldunload() kldfind() kldnext() kldstat() kldfirstmod() kldsym() getdtablesize() dup2() dup() fcntl() close() ofstat() fstat() nfsstat() fpathconf() flock()
2001-09-01 19:04:37 +00:00
/*
* MPSAFE
*/
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
int
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
modnext(struct thread *td, struct modnext_args *uap)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_t mod;
int error = 0;
td->td_retval[0] = -1;
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SLOCK;
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
if (uap->modid == 0) {
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
mod = TAILQ_FIRST(&modules);
if (mod)
td->td_retval[0] = mod->id;
else
error = ENOENT;
goto done2;
}
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
mod = module_lookupbyid(uap->modid);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
if (mod == NULL) {
error = ENOENT;
goto done2;
}
if (TAILQ_NEXT(mod, link))
td->td_retval[0] = TAILQ_NEXT(mod, link)->id;
Giant Pushdown. Saved the worst P4 tree breakage for last. reboot() getpriority() setpriority() rtprio() osetrlimit() ogetrlimit() setrlimit() getrlimit() getrusage() getpid() getppid() getpgrp() getpgid() getsid() getgid() getegid() getgroups() setsid() setpgid() setuid() seteuid() setgid() setegid() setgroups() setreuid() setregid() setresuid() setresgid() getresuid() getresgid () __setugid() getlogin() setlogin() modnext() modfnext() modstat() modfind() kldload() kldunload() kldfind() kldnext() kldstat() kldfirstmod() kldsym() getdtablesize() dup2() dup() fcntl() close() ofstat() fstat() nfsstat() fpathconf() flock()
2001-09-01 19:04:37 +00:00
else
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
td->td_retval[0] = 0;
Giant Pushdown. Saved the worst P4 tree breakage for last. reboot() getpriority() setpriority() rtprio() osetrlimit() ogetrlimit() setrlimit() getrlimit() getrusage() getpid() getppid() getpgrp() getpgid() getsid() getgid() getegid() getgroups() setsid() setpgid() setuid() seteuid() setgid() setegid() setgroups() setreuid() setregid() setresuid() setresgid() getresuid() getresgid () __setugid() getlogin() setlogin() modnext() modfnext() modstat() modfind() kldload() kldunload() kldfind() kldnext() kldstat() kldfirstmod() kldsym() getdtablesize() dup2() dup() fcntl() close() ofstat() fstat() nfsstat() fpathconf() flock()
2001-09-01 19:04:37 +00:00
done2:
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SUNLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
return (error);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
Giant Pushdown. Saved the worst P4 tree breakage for last. reboot() getpriority() setpriority() rtprio() osetrlimit() ogetrlimit() setrlimit() getrlimit() getrusage() getpid() getppid() getpgrp() getpgid() getsid() getgid() getegid() getgroups() setsid() setpgid() setuid() seteuid() setgid() setegid() setgroups() setreuid() setregid() setresuid() setresgid() getresuid() getresgid () __setugid() getlogin() setlogin() modnext() modfnext() modstat() modfind() kldload() kldunload() kldfind() kldnext() kldstat() kldfirstmod() kldsym() getdtablesize() dup2() dup() fcntl() close() ofstat() fstat() nfsstat() fpathconf() flock()
2001-09-01 19:04:37 +00:00
/*
* MPSAFE
*/
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
int
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
modfnext(struct thread *td, struct modfnext_args *uap)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_t mod;
int error;
td->td_retval[0] = -1;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SLOCK;
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
mod = module_lookupbyid(uap->modid);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
if (mod == NULL) {
error = ENOENT;
} else {
error = 0;
if (TAILQ_NEXT(mod, flink))
td->td_retval[0] = TAILQ_NEXT(mod, flink)->id;
else
td->td_retval[0] = 0;
}
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SUNLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
return (error);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
Implement a mechanism for a module to report a small amount of module specific data back to the user via kldstat(2). Use that mechanism in the syscall handler to report the syscall number used.
1999-01-09 14:59:50 +00:00
struct module_stat_v1 {
- Whitespace fixup left over from previous commit. - Remove bogus cast. Submitted by: bde
2002-02-22 13:33:10 +00:00
int version; /* set to sizeof(struct module_stat) */
char name[MAXMODNAME];
int refs;
int id;
Implement a mechanism for a module to report a small amount of module specific data back to the user via kldstat(2). Use that mechanism in the syscall handler to report the syscall number used.
1999-01-09 14:59:50 +00:00
};
Giant Pushdown. Saved the worst P4 tree breakage for last. reboot() getpriority() setpriority() rtprio() osetrlimit() ogetrlimit() setrlimit() getrlimit() getrusage() getpid() getppid() getpgrp() getpgid() getsid() getgid() getegid() getgroups() setsid() setpgid() setuid() seteuid() setgid() setegid() setgroups() setreuid() setregid() setresuid() setresgid() getresuid() getresgid () __setugid() getlogin() setlogin() modnext() modfnext() modstat() modfind() kldload() kldunload() kldfind() kldnext() kldstat() kldfirstmod() kldsym() getdtablesize() dup2() dup() fcntl() close() ofstat() fstat() nfsstat() fpathconf() flock()
2001-09-01 19:04:37 +00:00
/*
* MPSAFE
*/
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
int
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
modstat(struct thread *td, struct modstat_args *uap)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
module_t mod;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
modspecific_t data;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
int error = 0;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
int id, namelen, refs, version;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
struct module_stat *stat;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
char *name;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SLOCK;
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
mod = module_lookupbyid(uap->modid);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
if (mod == NULL) {
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SUNLOCK;
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
return (ENOENT);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
}
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
id = mod->id;
refs = mod->refs;
name = mod->name;
data = mod->data;
MOD_SUNLOCK;
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
stat = uap->stat;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
/*
* Check the version of the user's structure.
*/
if ((error = copyin(&stat->version, &version, sizeof(version))) != 0)
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
return (error);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
if (version != sizeof(struct module_stat_v1)
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
&& version != sizeof(struct module_stat))
return (EINVAL);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
namelen = strlen(mod->name) + 1;
if (namelen > MAXMODNAME)
namelen = MAXMODNAME;
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
if ((error = copyout(name, &stat->name[0], namelen)) != 0)
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
return (error);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
if ((error = copyout(&refs, &stat->refs, sizeof(int))) != 0)
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
return (error);
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
if ((error = copyout(&id, &stat->id, sizeof(int))) != 0)
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
return (error);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
/*
* >v1 stat includes module data.
*/
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
if (version == sizeof(struct module_stat))
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
if ((error = copyout(&data, &stat->data,
sizeof(data))) != 0)
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
return (error);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
td->td_retval[0] = 0;
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (error);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
Giant Pushdown. Saved the worst P4 tree breakage for last. reboot() getpriority() setpriority() rtprio() osetrlimit() ogetrlimit() setrlimit() getrlimit() getrusage() getpid() getppid() getpgrp() getpgid() getsid() getgid() getegid() getgroups() setsid() setpgid() setuid() seteuid() setgid() setegid() setgroups() setreuid() setregid() setresuid() setresgid() getresuid() getresgid () __setugid() getlogin() setlogin() modnext() modfnext() modstat() modfind() kldload() kldunload() kldfind() kldnext() kldstat() kldfirstmod() kldsym() getdtablesize() dup2() dup() fcntl() close() ofstat() fstat() nfsstat() fpathconf() flock()
2001-09-01 19:04:37 +00:00
/*
* MPSAFE
*/
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
int
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
modfind(struct thread *td, struct modfind_args *uap)
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
{
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
int error = 0;
char name[MAXMODNAME];
module_t mod;
SCARGS removal take II.
2002-12-14 01:56:26 +00:00
if ((error = copyinstr(uap->name, name, sizeof name, 0)) != 0)
- Remove Giant acquisition from modevent(), modfnext(), modstat() and modfind(). Giant is no longer needed by these functions for safe execution. Reviewed by: jhb
2002-06-26 00:31:44 +00:00
return (error);
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
MOD_SLOCK;
- Style.9 formatting fix; this commit is mostly white space related with the next commit actually doing the: return val; -> return (val); changes. This commit was done in preparation for getting ``struct modules'' locked down. Reviewed by: bde Approved by: dfr
2002-02-20 14:30:02 +00:00
mod = module_lookupbyname(name);
if (mod == NULL)
error = ENOENT;
else
- Lock down the ``module'' structure by adding an SX lock that is used by all the global bits of ``module'' data. This commit adds a few generic macros, MOD_SLOCK, MOD_XLOCK, etc., that are meant to be used as ways of accessing the SX lock. It is also the first step in helping to lock down the kernel linker and module systems. Reviewed by: jhb, jake, smp@
2002-03-18 07:45:30 +00:00
td->td_retval[0] = module_getid(mod);
MOD_SUNLOCK;
- Fix style further by adding parentheses around return values so that they look like: return (val); instead of: return val;
2002-02-20 16:05:30 +00:00
return (error);
This is the kernel linker. To use it, you will first need to apply the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
1997-05-07 16:05:47 +00:00
}
Reference in New Issue Copy Permalink