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In fact, this is my first time using importC, so maybe I messed something up
This is real piece of FreeRTOS header. It contains ARM assembler instruction and attended to use with GCC:
$ cat test.h
__attribute__( ( always_inline ) ) static inline uint8_t ucPortCountLeadingZeros( uint32_t ulBitmap )
{
uint8_t ucReturn;
__asm volatile ( "clz %0, %1" : "=r" ( ucReturn ) : "r" ( ulBitmap ) : "memory" );
return ucReturn;
}
Preprocessing this C header:
$ arm-none-eabi-gcc -std=c11 -E test.h -o test_gcc.i
$ cat test_gcc.i
# 0 "test.h"
# 0 "<built-in>"
# 0 "<command-line>"
# 1 "test.h"
__attribute__( ( always_inline ) ) static inline uint8_t ucPortCountLeadingZeros( uint32_t ulBitmap )
{
uint8_t ucReturn;
__asm volatile ( "clz %0, %1" : "=r" ( ucReturn ) : "r" ( ulBitmap ) : "memory" );
return ucReturn;
}
Trying to use it from D:
$ dmd test_gcc.i -Hf=test.di
test.h(5): Error: found `volatile` when expecting `;` following statement
test.h(5): Error: found `:` when expecting `)`
test.h(5): Error: found `"=r"` when expecting `;` following statement
test.h(5): Error: found `:` when expecting `;` following statement
test.h(5): Error: found `"r"` instead of statement
$ dmd --version
DMD64 D Compiler v2.107.1
Copyright (C) 1999-2024 by The D Language Foundation, All Rights Reserved written by Walter Bright
$ ldc2 --mtriple=thumbv7em-unknown-none-eabi test_gcc.i -Hf=test.di
test.h(5): Error: found `volatile` when expecting `;` following statement
test.h(5): Error: found `:` when expecting `)`
test.h(5): Error: found `"=r"` when expecting `;` following statement
test.h(5): Error: found `:` when expecting `;` following statement
test.h(5): Error: found `"r"` instead of statement
$ ldc2 --version
LDC - the LLVM D compiler (1.37.0):
based on DMD v2.107.1 and LLVM 17.0.6
built with LDC - the LLVM D compiler (1.37.0)
Something went wrong with "__asm volatile" syntax?
