dde_linux: remove custom *printf implementation

The DDE uses Linux-internal formatted printk for a while now, thus
remove the unused code.
This commit is contained in:
Christian Helmuth 2024-03-25 14:11:35 +01:00
parent 5ff1ef82d1
commit 66286d6f17
4 changed files with 0 additions and 385 deletions

View File

@ -19,7 +19,6 @@
extern "C" { extern "C" {
#endif #endif
void lx_emul_vprintf(char const *, va_list);
void lx_emul_print_string(char const *); void lx_emul_print_string(char const *);
#ifdef __cplusplus #ifdef __cplusplus

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@ -18,8 +18,6 @@
#ifndef _LX_KIT__CONSOLE_H_ #ifndef _LX_KIT__CONSOLE_H_
#define _LX_KIT__CONSOLE_H_ #define _LX_KIT__CONSOLE_H_
#include <stdarg.h>
namespace Lx_kit { namespace Lx_kit {
class Console; class Console;
@ -36,98 +34,12 @@ class Lx_kit::Console
char _buf[BUF_SIZE + 1]; char _buf[BUF_SIZE + 1];
unsigned _idx = 0; unsigned _idx = 0;
/**
* Convert digit to ASCII value
*/
static inline char _ascii(int digit, int uppercase = 0)
{
if (digit > 9)
return (char)(digit + (uppercase ? 'A' : 'a') - 10);
return (char)(digit + '0');
}
/**
* Output signed value with the specified base
*/
template <typename T>
void _out_signed(T value, unsigned base)
{
/**
* for base 8, the number of digits is the number of value bytes times 3
* at a max, because 0xff is 0o377 and accumulating this implies a
* strictly decreasing factor
*/
char buf[sizeof(value)*3];
/* set flag if value is negative */
int neg = value < 0 ? 1 : 0;
/* get absolute value */
value = value < 0 ? -value : value;
int i = 0;
/* handle zero as special case */
if (value == 0)
buf[i++] = _ascii(0);
/* fill buffer starting with the least significant digits */
else
for (; value > 0; value /= base)
buf[i++] = _ascii((value % base) & 0xff);
/* add sign to buffer for negative values */
if (neg)
_out_char('-');
/* output buffer in reverse order */
for (; i--; )
_out_char(buf[i]);
}
/**
* Output unsigned value with the specified base and padding
*/
template <typename T>
void _out_unsigned(T value, unsigned base, int pad)
{
/**
* for base 8, the number of digits is the number of value bytes times 3
* at a max, because 0xff is 0o377 and accumulating this implies a
* strictly decreasing factor
*/
char buf[sizeof(value)*3];
int i = 0;
/* handle zero as special case */
if (value == 0) {
buf[i++] = _ascii(0);
pad--;
}
/* fill buffer starting with the least significant digits */
for (; value > 0; value /= (T)base, pad--)
buf[i++] = _ascii((value % base) & 0xff);
/* add padding zeros */
for (; pad-- > 0; )
_out_char(_ascii(0));
/* output buffer in reverse order */
for (; i--; )
_out_char(buf[i]);
}
void _out_char(char c); void _out_char(char c);
void _out_string(const char *str); void _out_string(const char *str);
void _flush(); void _flush();
public: public:
void vprintf(const char *format, va_list list);
void print_string(const char *str); void print_string(const char *str);
}; };

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@ -15,8 +15,5 @@
#include <lx_kit/env.h> #include <lx_kit/env.h>
#include <lx_emul/log.h> #include <lx_emul/log.h>
extern "C" void lx_emul_vprintf(char const *fmt, va_list va) {
Lx_kit::env().console.vprintf(fmt, va); }
extern "C" void lx_emul_print_string(char const *str) { extern "C" void lx_emul_print_string(char const *str) {
Lx_kit::env().console.print_string(str); } Lx_kit::env().console.print_string(str); }

View File

@ -23,163 +23,6 @@
#include <lx_kit/console.h> #include <lx_kit/console.h>
namespace Lx_kit { class Format_command; }
/**
* Format string command representation
*/
class Lx_kit::Format_command
{
public:
enum Type { INT, UINT, STRING, CHAR, PTR, PERCENT, VA_FORMAT, MAC,
IPV4, INVALID };
enum Length { DEFAULT, LONG, SIZE_T, LONG_LONG };
private:
/**
* Read decimal value from string
*/
int decode_decimal(const char *str, int *consumed)
{
int res = 0;
while (1) {
char c = str[*consumed];
if (!c || c < '0' || c > '0' + 9)
return res;
res = (res * 10) + c - '0';
(*consumed)++;
}
}
public:
Type type = INVALID; /* format argument type */
Length length = DEFAULT; /* format argument length */
int padding = 0; /* min number of characters to print */
int base = 10; /* base of numeric arguments */
bool zeropad = false; /* pad with zero instead of space */
bool uppercase = false; /* use upper case for hex numbers */
bool prefix = false; /* prefix with 0x */
int consumed = 0; /* nb of consumed format string chars */
/**
* Constructor
*
* \param format begin of command in format string
*/
explicit Format_command(const char *format)
{
/* check for command begin and eat the character */
if (format[consumed] != '%')
return;
if (!format[++consumed])
return;
/* check for %$x syntax */
prefix = (format[consumed] == '#') || (format[consumed] == '.');
if (prefix && !format[++consumed])
return;
/* heading zero indicates zero-padding */
zeropad = (format[consumed] == '0');
/* read decimal padding value */
padding = decode_decimal(format, &consumed);
if (!format[consumed])
return;
/* decode length */
switch (format[consumed]) {
case 'l':
{
/* long long ints are marked by a subsequenting 'l' character */
bool is_long_long = (format[consumed + 1] == 'l');
length = is_long_long ? LONG_LONG : LONG;
consumed += is_long_long ? 2 : 1;
break;
}
case 'h':
length = DEFAULT;
consumed++;
break;
case 'z':
case 'Z':
length = SIZE_T;
consumed++;
break;
case 'p':
length = LONG;
break;
default:
break;
}
if (!format[consumed])
return;
/* decode type */
switch (format[consumed]) {
case 'd':
case 'i': type = INT; base = 10; break;
case 'o': type = UINT; base = 8; break;
case 'u': type = UINT; base = 10; break;
case 'x': type = UINT; base = 16; break;
case 'X': type = UINT; base = 16; uppercase = 1; break;
case 'p': type = PTR; base = 16; break;
case 'c': type = CHAR; break;
case 's': type = STRING; break;
case '%': type = PERCENT; break;
case 0: return;
default: break;
}
/* eat type character */
consumed++;
if (type != PTR || !format[consumed])
return;
switch (format[consumed]) {
case 'V': type = VA_FORMAT; break;
case 'M': type = MAC; base = 16; padding = 2; break;
case 'I':
if (format[consumed + 1] != '4') break;
consumed++;
type = IPV4; base = 10;
break;
default: return;
}
consumed++;
}
int numeric()
{
return (type == INT || type == UINT || type == PTR);
}
};
void Lx_kit::Console::_flush() void Lx_kit::Console::_flush()
{ {
if (!_idx) if (!_idx)
@ -222,139 +65,3 @@ void Lx_kit::Console::print_string(const char *str)
_out_string(str); _out_string(str);
} }
void Lx_kit::Console::vprintf(const char *format, va_list list)
{
while (*format) {
/* eat and output plain characters */
if (*format != '%') {
_out_char(*format++);
continue;
}
/* parse format argument descriptor */
Format_command cmd(format);
/* read numeric argument from va_list */
long long numeric_arg = 0;
if (cmd.numeric()) {
switch (cmd.length) {
case Format_command::LONG_LONG:
numeric_arg = va_arg(list, long long);
break;
case Format_command::LONG:
numeric_arg = (cmd.type == Format_command::UINT) ?
(long long)va_arg(list, unsigned long) : va_arg(list, long);
break;
case Format_command::SIZE_T:
numeric_arg = va_arg(list, size_t);
break;
case Format_command::DEFAULT:
numeric_arg = (cmd.type == Format_command::UINT) ?
(long long)va_arg(list, unsigned int) : va_arg(list, int);
break;
}
}
/* call type-specific output routines */
switch (cmd.type) {
case Format_command::INT:
if (cmd.length == Format_command::LONG_LONG)
_out_signed<long long>(numeric_arg, cmd.base);
else
_out_signed<long>(static_cast<long>(numeric_arg), cmd.base);
break;
case Format_command::UINT:
if (cmd.prefix && cmd.base == 16)
_out_string("0x");
if (cmd.length == Format_command::LONG_LONG) {
_out_unsigned<unsigned long long>(numeric_arg, cmd.base, cmd.padding);
break;
}
/* fall through */
case Format_command::PTR:
_out_unsigned<unsigned long>(static_cast<unsigned long>(numeric_arg), cmd.base, cmd.padding);
break;
case Format_command::CHAR:
_out_char((char)(va_arg(list, int)));
break;
case Format_command::STRING:
_out_string(va_arg(list, const char *));
break;
case Format_command::PERCENT:
_out_char('%');
break;
case Format_command::VA_FORMAT: /* %pV */
{
struct va_format
{
const char *fmt;
va_list *va;
};
va_list va;
va_format *vf = va_arg(list, va_format *);
va_copy(va, *vf->va);
vprintf(vf->fmt, va);
va_end(va);
}
break;
case Format_command::MAC: /* %pM */
{
unsigned char const *mac = va_arg(list, unsigned char const *);
for (int i = 0; i < 6; i++) {
if (i) _out_char(':');
_out_unsigned<unsigned char>(mac[i], cmd.base, cmd.padding);
}
break;
}
case Format_command::IPV4: /* %pI4 */
{
unsigned char const *ip = va_arg(list, unsigned char const *);
for (int i = 0; i < 4; i++) {
if (i) _out_char('.');
_out_unsigned<unsigned char>(ip[i], cmd.base, cmd.padding);
}
}
break;
case Format_command::INVALID:
_out_string("<warning: unsupported format string argument>");
/* consume the argument of the unsupported command */
va_arg(list, long);
break;
}
/* proceed with format string after command */
format += cmd.consumed;
}
}