295 lines
7.6 KiB
C
295 lines
7.6 KiB
C
/**********************************************************************/
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/** @addtogroup gcov
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* @{
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* @file
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* @version $Id: gcov_printf.c 302 2015-09-14 23:41:57Z scclancy $
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* @author 2008-10-30 cyamamot
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* @author 2021-08-24 kjpeters
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* @author 2022-01-03 kjpeters Adjust character output for portability.
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*
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* Provide small imitation printf function.
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* This is only needed if you want serial port outputs and
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* do not have already-existing functions to do the printing.
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* If you select this, then you need to provide a function
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* write_bytes() that does the actual serial output in your system.
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*
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* @brief Formatted printing utility functions
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**********************************************************************/
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#include "gcov_public.h"
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#ifdef GCOV_OPT_PROVIDE_PRINTF_IMITATION
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#include <stdarg.h>
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/* Include any files you need to get your write_bytes() function */
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/* that does the actual serial output in your system. */
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/*
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* INT32
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* write_bytes(INT32 fd,
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* CHAR_T const *buf,
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* UINT32 nbyte);
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* where
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* @param [in] fd (which serial port)
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* @param [in,out] *buf (bytes to send out)
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* @param [in] nbyte (number of bytes to send)
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*
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* @return -1 if error, otherwise returns byte count written to UART
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*/
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#include <stdio.h>
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#define write_bytes(fd, buf, n) putchar((int)(*(buf)))
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/***********************************************************************
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* The following functions support gcov_printf and are not meant to be
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* called otherwise.
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**********************************************************************/
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static void gcov_uli2a(unsigned long int num, unsigned int base, int uc,char * bf);
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static void gcov_uli2a(unsigned long int num, unsigned int base, int uc,char * bf)
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{
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int n=0;
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unsigned int d=1;
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while (num/d >= base)
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d*=base;
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while (d!=0) {
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int dgt = num / d;
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num%=d;
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d/=base;
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if (n || dgt>0|| d==0) {
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*bf++ = dgt+(dgt<10 ? '0' : (uc ? 'A' : 'a')-10);
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++n;
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}
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}
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*bf=0;
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}
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static void gcov_li2a (long num, char * bf);
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static void gcov_li2a (long num, char * bf)
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{
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if (num<0) {
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num=-num;
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*bf++ = '-';
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}
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gcov_uli2a(num,10,0,bf);
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}
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static void gcov_ui2a(unsigned int num, unsigned int base, int uc,char * bf);
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static void gcov_ui2a(unsigned int num, unsigned int base, int uc,char * bf)
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{
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int n=0;
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unsigned int d=1;
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while (num/d >= base)
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d*=base;
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while (d!=0) {
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int dgt = num / d;
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num%= d;
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d/=base;
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if (n || dgt>0 || d==0) {
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*bf++ = dgt+(dgt<10 ? '0' : (uc ? 'A' : 'a')-10);
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++n;
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}
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}
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*bf=0;
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}
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static void gcov_i2a (int num, char * bf);
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static void gcov_i2a (int num, char * bf)
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{
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if (num<0) {
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num=-num;
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*bf++ = '-';
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}
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gcov_ui2a(num,10,0,bf);
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}
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static int gcov_a2d(char ch);
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static int gcov_a2d(char ch)
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{
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if (ch>='0' && ch<='9')
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return ch-'0';
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else if (ch>='a' && ch<='f')
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return ch-'a'+10;
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else if (ch>='A' && ch<='F')
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return ch-'A'+10;
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else return -1;
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}
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static char gcov_a2i(char ch, const char* src,int base,int* nump,int *numc);
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static char gcov_a2i(char ch, const char* src,int base,int* nump,int *numc)
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{
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const char* p= src;
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int n=0;
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int num=0;
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int digit;
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while ((digit=gcov_a2d(ch))>=0) {
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if (digit>base) break;
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num=num*base+digit;
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ch=*p++;
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n++;
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}
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*nump=num;
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*numc=n;
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return ch;
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}
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static void gcov_putchw(int n, char z, char* bf);
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static void gcov_putchw(int n, char z, char* bf)
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{
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char fc=z? '0' : ' ';
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char ch;
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char* p=bf;
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while (*p++ && n > 0)
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n--;
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while (n-- > 0)
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write_bytes(1,&fc,1);
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while ((ch= *bf++))
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write_bytes(1,&ch,1);
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}
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/**********************************************************************/
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/** @brief
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*
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* @author 2008-10-30 cyamamot
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* @author 2021-08-24 kjpeters
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* @author 2022-01-03 kjpeters Adjust character output for portability.
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*
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* @param [in] *fmt
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* @param [in] va
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*
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* @note This is a supporting function for \ref gcov_printf gcov_printf
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* and is not meant to be called otherwise.
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**********************************************************************/
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static void gcov_format(const char *fmt, va_list va);
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static void gcov_format(const char *fmt, va_list va)
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{
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// 10/3/2017 m. chase - Added abort flag to remove the need of goto
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char bf[12];
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char ch;
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char c2;
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char abort_flg = 0; // make nonzero to abort
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while ((ch=*(fmt++)) && (!abort_flg)) {
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if (ch!='%')
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write_bytes(1,&ch,1);
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else {
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char lz=0;
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char lng=0;
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int w=0;
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int n=0;
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ch=*(fmt++);
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if (ch=='0') {
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ch=*(fmt++);
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lz=1;
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}
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if (ch>='0' && ch<='9') {
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ch=gcov_a2i(ch,fmt,10,&w,&n);
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fmt+=n;
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}
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if (ch=='l') {
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ch=*(fmt++);
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lng=1;
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}
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if(ch==0) {
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abort_flg = 1;
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}
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else {
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switch (ch) {
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case 'u' : {
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if (lng)
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gcov_uli2a(va_arg(va, unsigned long int),10,0,bf);
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else
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gcov_ui2a(va_arg(va, unsigned int),10,0,bf);
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gcov_putchw(w,lz,bf);
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break;
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}
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case 'd' : {
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if (lng)
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gcov_li2a(va_arg(va, unsigned long int),bf);
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else
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gcov_i2a(va_arg(va, int),bf);
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gcov_putchw(w,lz,bf);
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break;
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}
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case 'x': case 'X' :
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if (lng)
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gcov_uli2a(va_arg(va, unsigned long int),16,(ch=='X'),bf);
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else
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gcov_ui2a(va_arg(va, unsigned int),16,(ch=='X'),bf);
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gcov_putchw(w,lz,bf);
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break;
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case 'c' :
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c2 = (char)(va_arg(va, int));
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write_bytes(1,&c2,1);
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break;
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case 's' :
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gcov_putchw(w,0,va_arg(va, char*));
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break;
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case '%' :
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write_bytes(1,&ch,1);
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default:
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break;
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}
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}
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}
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}
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}
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/**********************************************************************/
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/** @brief Simplistic printf() function, floating point not supported
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*
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* @author 2008-10-30 cyamamot
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* @author 2021-08-24 kjpeters
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*
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* @param [in] *fmt
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* @param [in] ... variable length argument list
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*
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**********************************************************************/
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void gcov_printf(const char *fmt, ...)
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{
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va_list va;
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va_start(va,fmt);
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gcov_format(fmt,va);
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va_end(va);
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}
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#endif // GCOV_OPT_PROVIDE_PRINTF_IMITATION
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/** @}
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*/
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/*
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* embedded-gcov gcov_printf.c gcov small printf imitation if needed
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*
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* Copyright (c) 2021 California Institute of Technology (“Caltech”).
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* U.S. Government sponsorship acknowledged.
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* Neither the name of Caltech nor its operating division, the Jet Propulsion Laboratory,
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* nor the names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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