76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/*
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* \brief Core-internal utilities
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* \author Norman Feske
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* \date 2009-10-02
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*/
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/*
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* Copyright (C) 2009-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _CORE__INCLUDE__UTIL_H_
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#define _CORE__INCLUDE__UTIL_H_
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/* Genode includes */
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#include <rm_session/rm_session.h>
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#include <base/printf.h>
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namespace Genode {
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constexpr size_t get_page_size_log2() { return 12; }
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constexpr size_t get_page_size() { return 1 << get_page_size_log2(); }
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constexpr addr_t get_page_mask() { return ~(get_page_size() - 1); }
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constexpr size_t get_super_page_size_log2() { return 22; }
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constexpr size_t get_super_page_size() { return 1 << get_super_page_size_log2(); }
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inline addr_t trunc_page(addr_t addr) { return addr & get_page_mask(); }
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inline addr_t round_page(addr_t addr) { return trunc_page(addr + get_page_size() - 1); }
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inline addr_t map_src_addr(addr_t core_local, addr_t phys) { return core_local; }
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inline size_t constrain_map_size_log2(size_t size_log2) { return size_log2; }
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inline void print_page_fault(const char *msg, addr_t pf_addr, addr_t pf_ip,
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Rm_session::Fault_type pf_type,
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unsigned long faulter_badge)
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{
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printf("%s (%s pf_addr=%p pf_ip=%p from %02lx %s)\n", msg,
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pf_type == Rm_session::WRITE_FAULT ? "WRITE" : "READ",
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(void *)pf_addr, (void *)pf_ip,
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faulter_badge,
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faulter_badge ? reinterpret_cast<char *>(faulter_badge) : 0);
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}
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inline void backtrace()
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{
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using namespace Genode;
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printf("\nbacktrace\n");
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printf(" %p\n", __builtin_return_address(0));
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printf(" %p\n", __builtin_return_address(1));
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printf(" %p\n", __builtin_return_address(2));
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printf(" %p\n", __builtin_return_address(3));
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printf(" %p\n", __builtin_return_address(4));
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}
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inline void hexdump(void *addr)
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{
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unsigned char *s = (unsigned char *)addr;
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printf("\nhexdump at 0x%p:\n", addr);
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for (unsigned j = 0; j < 4; j++) {
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printf(" ");
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for (unsigned i = 0; i < 16; i++)
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printf("0x%02x ", s[j*16 + i]);
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printf("\n");
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}
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}
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}
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#endif /* _CORE__INCLUDE__UTIL_H_ */
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