957a1b17eb
{HAIKU,HOST,TARGET}_KERNEL_PIC_{CC,LINK}FLAGS which define the
compiler/linker flags specifying the kind of position independence
the kernel shall have. For x86 we had and still have -fno-pic, but the
PPC kernel has -fPIE (position independent executable) now, as we
need to relocate it.
* The boot loader relocates the kernel now. Mostly copied the relocation
code from the kernel ELF loader. Almost completely rewrote the PPC
specific relocation code, though. It's more correct and more complete now
(some things are still missing though).
* Added boot platform awareness to the kernel. Moved the generic
Open Firmware code (openfirmware.c/h) from the boot loader to the kernel.
* The kernel PPC serial debug output is sent to the console for the time
being.
* The PPC boot loader counts the CPUs now and allocates the kernel stacks
(made OF device iteration a bit more flexible on the way -- the search
can be restricted to subtree). Furthermore we really enter the kernel...
(Yay! :-) ... and crash in the first dprintf() (in the atomic_set()
called by acquire_spinlock()). kprintf() works, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15756 a95241bf-73f2-0310-859d-f6bbb57e9c96
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
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* Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef OPEN_FIRMWARE_H
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#define OPEN_FIRMWARE_H
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#include <SupportDefs.h>
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#define OF_FAILED (-1)
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/* global device tree/properties access */
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extern int gChosen;
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struct of_arguments {
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const char *name;
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int num_args;
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int num_returns;
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int data[0];
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#ifdef __cplusplus
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int &Argument(int index) { return data[index]; }
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int &ReturnValue(int index) { return data[num_args + index]; }
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#endif
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};
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struct of_region {
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void *base;
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uint32 size;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern status_t of_init(int (*openFirmwareEntry)(void *));
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/* device tree functions */
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extern int of_finddevice(const char *device);
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extern int of_child(int node);
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extern int of_peer(int node);
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extern int of_parent(int node);
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extern int of_instance_to_path(int instance, char *pathBuffer, int bufferSize);
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extern int of_instance_to_package(int instance);
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extern int of_getprop(int package, const char *property, void *buffer,
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int bufferSize);
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extern int of_setprop(int package, const char *property, const void *buffer,
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int bufferSize);
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extern int of_nextprop(int package, const char *previousProperty,
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char *nextProperty);
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extern int of_getproplen(int package, const char *property);
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extern int of_package_to_path(int package, char *pathBuffer, int bufferSize);
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/* I/O functions */
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extern int of_open(const char *nodeName);
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extern void of_close(int handle);
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extern int of_read(int handle, void *buffer, int bufferSize);
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extern int of_write(int handle, const void *buffer, int bufferSize);
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extern int of_seek(int handle, off_t pos);
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/* memory functions */
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extern int of_release(void *virtualAddress, int size);
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extern void *of_claim(void *virtualAddress, int size, int align);
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/* misc functions */
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extern int of_call_client_function(const char *method, int numArgs,
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int numReturns, ...);
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extern int of_interpret(const char *command, int numArgs, int numReturns, ...);
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extern int of_call_method(int handle, const char *method, int numArgs,
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int numReturns, ...);
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extern int of_test(const char *service);
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extern int of_milliseconds(void);
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extern void of_exit(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* OPEN_FIRMWARE_H */
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