142 lines
2.4 KiB
C
142 lines
2.4 KiB
C
/**
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* @file printf_hook.c
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*
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* @brief Printf hook definitions and arginfo functions.
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*
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*/
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/*
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* Copyright (C) 2006 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "printf_hook.h"
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/**
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* arginfo handler in printf() pointer
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*/
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int arginfo_ptr(const struct printf_info *info, size_t n, int *argtypes)
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{
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if (n > 0)
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{
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argtypes[0] = PA_POINTER;
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}
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return 1;
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}
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/**
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* arginfo handler for two prt arguments
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*/
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int arginfo_ptr_ptr(const struct printf_info *info, size_t n, int *argtypes)
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{
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if (n > 1)
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{
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argtypes[0] = PA_POINTER;
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argtypes[1] = PA_POINTER;
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}
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return 2;
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}
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/**
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* arginfo handler for one ptr, one int
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*/
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int arginfo_ptr_int(const struct printf_info *info, size_t n, int *argtypes)
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{
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if (n > 1)
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{
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argtypes[0] = PA_POINTER;
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argtypes[1] = PA_INT;
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}
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return 2;
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}
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/**
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* arginfo handler for two int arguments
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*/
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int arginfo_int_int(const struct printf_info *info, size_t n, int *argtypes)
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{
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if (n > 1)
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{
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argtypes[0] = PA_INT;
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argtypes[1] = PA_INT;
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}
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return 2;
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}
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/**
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* special arginfo handler respecting alt flag
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*/
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int arginfo_int_alt_int_int(const struct printf_info *info, size_t n, int *argtypes)
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{
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if (info->alt)
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{
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if (n > 1)
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{
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argtypes[0] = PA_INT;
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argtypes[1] = PA_INT;
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}
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return 2;
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}
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if (n > 0)
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{
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argtypes[0] = PA_INT;
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}
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return 1;
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}
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/**
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* special arginfo handler respecting alt flag
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*/
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int arginfo_ptr_alt_ptr_int(const struct printf_info *info, size_t n, int *argtypes)
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{
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if (info->alt)
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{
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if (n > 1)
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{
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argtypes[0] = PA_POINTER;
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argtypes[1] = PA_INT;
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}
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return 2;
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}
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if (n > 0)
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{
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argtypes[0] = PA_POINTER;
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}
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return 1;
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}
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/**
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* special arginfo handler respecting alt flag
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*/
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int arginfo_ptr_alt_ptr_ptr(const struct printf_info *info, size_t n, int *argtypes)
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{
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if (info->alt)
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{
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if (n > 1)
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{
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argtypes[0] = PA_POINTER;
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argtypes[1] = PA_POINTER;
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}
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return 2;
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}
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if (n > 0)
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{
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argtypes[0] = PA_POINTER;
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}
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return 1;
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}
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