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Improve the immediate console to the point that it can be enabled and
display e.g. assertion failures from very early on (i.e. from
`c_boot_entry').
* device/cons.h (romgetc, romputc): New declarations.
* i386/configfrag.ac: Add configuration variable.
* i386/i386at/conf.c (dev_name_list): Add entry.
* i386/i386at/cons_conf.c (constab): Add entry.
* i386/i386at/immc.c: Add missing includes.
(immc_cnprobe, immc_cninit, immc_cngetc, immc_romputc): New functions.
(immc_cnputc): Fix signature, use virtual addresses.
* i386/i386at/immc.h: New file.
* i386/i386at/kd.c: Use `#if ENABLE_IMMEDIATE_CONSOLE'.
* i386/i386at/kd.h (kd_setpos): Add missing declaration.
* i386/i386at/model_dep.c (c_boot_entry): Install immediate console as
early boot console.
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CONSMAJOR is never used. I'm guessing that in the past it was
a part of some problematic code. I don't see a reason to keep
it's definition.
* device/cons.h (CONSMAJOR): Remove definition.
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Use «unifdef -DMACK_KERNEL=1» as a starting point, but only remove
the code not exposed on public headers, the rest is needed to build
properly from userland.
* device/cons.c [!MACH_KERNEL]: Remove includes.
[!MACH_KERNEL] (constty): Remove variable.
(cninit, cnmaygetc) [MACH_KERNEL]: Remove preprocessor conditionals.
[!MACH_KERNEL] (cnopen, cnclose, cnread, cnwrite, cnioctl, cnselect)
(cncontrol): Remove functions.
* device/cons.h (struct consdev) [MACH_KERNEL]: Remove preprocessor
conditional.
* device/kmsg.h [MACH_KERNEL]: Likewise.
* i386/i386at/autoconf.c [!MACH_KERNEL]: Remove includes.
* i386/i386at/kd_event.c [!MACH_KERNEL]: Likewise.
[!MACH_KERNEL] (kbd_sel, kbdpgrp, kbdflag): Remove variables.
[!MACH_KERNEL] (KBD_COLL, KBD_ASYNC, KBD_NBIO): Remove macros.
(kbdopen, kbdclose, kbd_enqueue) [!MACH_KERNEL]: Remove code.
[!MACH_KERNEL] (kbdioctl, kbdselect, kbdread): Remove functions.
[!MACH_KERNEL] (X_kdb_enter_init, X_kdb_exit_init: Likewise.
* i386/i386at/kd_mouse.c [!MACH_KERNEL]: Remove includes.
[!MACH_KERNEL] (mouse_sel, mousepgrp, mouseflag): Remove variables.
[!MACH_KERNEL] (MOUSE_COLL, MOUSE_ASYNC, MOUSE_NBIO): Remove macros.
(mouseopen, mouseclose, kd_mouse_read, mouse_enqueue) [!MACH_KERNEL]: Remove
code.
[!MACH_KERNEL] (mouseioctl, mouseselect, mouseread): Remove functions.
* i386/i386at/lpr.c [!MACH_KERNEL]: Remove includes.
(lpropen) [MACH_KERNEL]: Remove preprocessor conditionals.
(lpropen, lprclose, lprstart) [!MACH_KERNEL]: Remove code.
[!MACH_KERNEL] (lprwrite, lprioctl, lprstop): Remove functions.
* i386/i386at/rtc.c (readtodc, writetodc) [!MACH_KERNEL]: Remove code.
* kern/mach_factor.c [MACH_KERNEL]: Remove preprocessor conditional.
* xen/time.c (readtodc) [!MACH_KERNEL]: Remove code.
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* device/cons.h: Add multiple inclusion _DEVICE_CONS_H macro protector.
(struct consdev): Add function members prototypes.
* i386/i386/xen.h: Include <mach/xen.h>.
* i386/i386at/com.c (comcnprobe, comcninit, comcngetc, comcnputc): Move
prototypes...
* i386/i386at/com.h: ... here. Include <device/cons.h>.
* i386/i386at/cons_conf.c [MACH_HYP]: Include <xen/console.h>.
[!MACH_HYP]: Include "kd.h".
[!MACH_HYP && NCOM > 0]: Include "com.h".
(hypcnprobe, hypcninit, hypcngetc, hypcnputc, kdcnprobe, kdcninit, kdcngetc,
kdcnputc comcnprobe, comcninit, comcngetc, comcnputc): Remove prototypes.
* i386/i386at/kd.c (kdcnputc): Make it return int, -1 on error, 0 on
success.
(kdcnprobe, kdcninit, kdcngetc, kdcnputc): Move prototypes...
* i386/i386at/kd.h: ... here. Include <device/cons.h>.
* xen/console.c (hypcnprobe): Remove unused `my_console' local variable.
* xen/console.h: Include <device/cons.h>
(hypcnputc, hypcngetc, hypcnprobe, hypcninit): Add prototypes.
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* device/cons.c (cnputc): Turn parameter `c' into a char.
* device/cons.h (cninit, cngetc, cnmaygetc, cnputc): Add prototypes.
* i386/i386at/model_dep.c: Include <device/cons.h>
* kern/printf.c: Include <device/cons.h>
(cnputc): Remove prototype.
(vprintf, iprintf): Explicitely cast cnputc into the type _doprnt
expects.
* linux/dev/kernel/printk.c: Include <device/cons.h>
(cnputc): Remove prototype.
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* device/cons.h (cn_tab) [KERNEL]: Removed extern declaration.
* linux/dev/include/linux/fs.h (super_blocks): Declare as an
pointer.
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