lint.h is not working, VSCode shows error on every SDCC keyword

[marshfolx]

SDCC related defines, like SDCC and SDCC_mcs51, were added somewhere which causes lint.h is useless.

A simple workaround is undef __SDCC_mcs51 before including lint.h, then re-define it, like:

#undef __SDCC_mcs51
#include <lint.h>
#define __SDCC_mcs51

but this way all the SDCC keyword below will disapear.

[IOsetting]

I get the same problem.

My workaround is add a new macro before SDCC

#if defined (__SDCC_SYNTAX_FIX)
    #include <stdbool.h>
    #include <lint.h>
    # warning unrecognized compiler
    #define __BIT   bool
    #define __IDATA
    #define __PDATA 
    #define __XDATA 
    #define __CODE 
    #define __REENTRANT  
    #define SBIT(name, addr, bit)    volatile bool           name
    #define SFR(name, addr)          volatile unsigned char  name
    #define SFRX(addr)               (*(unsigned char volatile *)(addr))
    #define SFR16X(addr)             (*(unsigned char volatile *)(addr))
    #define INTERRUPT(name, vector)  void name (void) 
    #define INTERRUPT_USING(name, vector, regnum) void name (void)
    #define NOP() 

#elif defined (SDCC) || defined (__SDCC)
    #define __BIT   __bit
    #define __IDATA __idata
    #define __PDATA __pdata
    #define __XDATA __xdata
    #define __CODE  __code
    #define __REENTRANT  __reentrant
    #define SBIT(name, addr, bit)  __sbit  __at(addr+bit)                    name
    #define SFR(name, addr)        __sfr   __at(addr)                        name
    #define SFRX(addr)              (*(unsigned char volatile __xdata *)(addr))
    #define SFR16X(addr)            (*(unsigned int  volatile __xdata *)(addr))

    #define INTERRUPT(name, vector) void name (void) __interrupt (vector)
    #define INTERRUPT_USING(name, vector, regnum) void name (void) __interrupt (vector) __using (regnum)
    #define NOP() __asm NOP __endasm

//...

#endif

Then create a separate env for code editing

build_flags =
    -D__SDCC_SYNTAX_FIX
    -D__CONF_FOSC=36864000UL
    -D__CONF_MCU_MODEL=MCU_MODEL_STC8H3K32S2
    ...

and build/upload with another env.

[a3510377]

A simple demonstration:

#include <stdbool.h>
#undef __SDCC_mcs51
#include <lint.h>
#define __SDCC_mcs
#include <8052.h>

#define MAIN_Fosc 16000000uL
#define led P1_0

void delay_ms(unsigned int ms);

void main() {
  while (1) {
    led = true;
    delay_ms(500);
    led = false;
    delay_ms(500);
  }
}

void delay_ms(unsigned int ms) {
  unsigned int i;
  do {
    i = MAIN_Fosc / 13000;
    while (--i);
  } while (--ms);
}