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/*******************************************************************/
/* sbpython3: external configurable build project for Python-3.x. */
/* Copyright (C) 2018--2021 SysDeer Technologies, LLC */
/* Released under the Standard MIT License; see COPYING.SBPYTHON3.*/
/*******************************************************************/
/*******************************************************************/
/* pyexts.c: a simple development-time utility for generating */
/* make rules for python's extension modules. The utility is */
/* included with the sbpython3 project for reference only. */
/* */
/* cc -std=c99 -D_XOPEN_SOURCE=700 pyexts.c */
/*******************************************************************/
#include <stdio.h>
#include <string.h>
#include "pyexts.h"
static void pyext_uppercase(char * buf, const char * name)
{
const char * src;
char * dst;
src = name;
dst = buf;
for (; *src; )
*dst++ = ((*src >= 'a') && (*src <= 'z'))
? 'A' - 'a' + *src++ : *src++;
*dst = 0;
}
int main(int argc, char ** argv)
{
const struct pyext_meta * p;
size_t nlen;
const char ** parg;
const char * dtab;
const char * otab;
const char * htab;
const char * stab;
const char * ltab;
const char * rtab;
const char * vtab;
const char * name;
char fmt[64];
char uname[64];
if ((argc == 2) && !strcmp(argv[1],"--py-init-func")) {
for (p=pyexts; p->name; p++)
printf("PY_INIT_FUNC(%s);\n",p->name);
return 0;
}
if ((argc == 2) && !strcmp(argv[1],"--init-func-ptr")) {
for (p=pyexts; p->name; p++) {
nlen = strlen(p->name);
sprintf(fmt,"\t{\"%%s\",%%-%zusPyInit_%%s},%%-%zus\\\n",
20-nlen,23-nlen);
printf(fmt,p->name," ",p->name," ");
}
return 0;
}
for (p=pyexts; p->name; p++) {
/* init */
name = (p->name[0] == '_') ? &p->name[1] : p->name;
nlen = strlen(name);
pyext_uppercase(uname,name);
/* pretty */
dtab = (nlen <= 4)
? "\t\t\t"
: (nlen <= 12)
? "\t\t" : "\t";
otab = (nlen <= 3)
? "\t\t\t"
: (nlen <= 11)
? "\t\t" : "\t";
ltab = (nlen <= 2)
? "\t\t\t"
: (nlen <= 10)
? "\t\t" : "\t";
rtab = (nlen <= 1)
? "\t\t\t"
: (nlen <= 9)
? "\t\t" : "\t";
vtab = (nlen <= 6)
? "\t\t"
: (nlen <= 14)
? "\t" : "";
htab = (nlen <= 8)
? "\t\t" : "\t";
stab = (nlen <= 9)
? "\t\t" : "\t";
/* output */
printf("# %s\n",p->name);
for (parg=p->srcs; *parg; parg++)
printf("PYEXT_%s_SRCS%s+= "
"pyext/obj/%s.c\n",
uname,dtab,*parg);
printf("\n");
printf("PYEXT_%s_LOBJS%s= $(PYEXT_%s_SRCS:.c=.lo)\n",uname,otab,uname);
printf("PYEXT_%s_OBJS%s= $(PYEXT_%s_SRCS:.c=.o)\n",uname,dtab,uname);
printf("\n");
for (parg=p->hdrs; parg && *parg; parg++)
printf("$(PYEXT_%s_LOBJS):%s"
"CFLAGS_CONFIG += %s\n",
uname,htab,*parg);
for (parg=p->hdrs; parg && *parg; parg++)
printf("$(PYEXT_%s_OBJS):%s"
"CFLAGS_CONFIG += %s\n",
uname,stab,*parg);
for (parg=p->cstd; parg && *parg; parg++)
printf("$(PYEXT_%s_LOBJS):%s"
"CFLAGS_LAST += %s\n",
uname,otab,*parg);
for (parg=p->cstd; parg && *parg; parg++)
printf("$(PYEXT_%s_OBJS):%s"
"CFLAGS_LAST += %s\n",
uname,dtab,*parg);
if (p->hdrs || p->cstd)
printf("\n");
printf("PYEXT_%s_SHARED%s= pyext/%s$(PYTHON_SOEXT)\n",uname,ltab,p->name);
printf("PYEXT_%s_STATIC%s= pyext/%s$(OS_ARCHIVE_EXT)\n",uname,ltab,p->name);
printf("\n");
for (parg=p->vars; parg && *parg; parg++)
printf("$(PYEXT_%s_SHARED):%s"
"LDFLAGS_DYNEXT += %s\n",
uname,vtab,*parg);
for (parg=p->deps; parg && *parg; parg++)
printf("$(PYEXT_%s_SHARED):%s%s\n",uname,vtab,*parg);
printf("$(PYEXT_%s_SHARED):%s$(PYEXT_%s_LOBJS)\n",uname,vtab,uname);
printf("$(PYEXT_%s_STATIC):%s$(PYEXT_%s_OBJS)\n",uname,vtab,uname);
printf("\n");
printf("pyext-%s-shared:%s$(PYEXT_%s_SHARED)\n",name,rtab,uname);
printf("pyext-%s-static:%s$(PYEXT_%s_STATIC)\n",name,rtab,uname);
printf("\n");
printf("pyext-%s-clean:\n",name);
printf("\trm -f $(PYEXT_%s_LOBJS)\n",uname);
printf("\trm -f $(PYEXT_%s_OBJS)\n",uname);
printf("\trm -f $(PYEXT_%s_SHARED)\n",uname);
printf("\trm -f $(PYEXT_%s_STATIC)\n",uname);
printf("\n");
printf("clean:\tpyext-%s-clean\n",name);
printf("\n");
printf(".PHONY:\tpyext-%s-shared\n",name);
printf(".PHONY:\tpyext-%s-static\n",name);
printf(".PHONY:\tpyext-%s-clean\n",name);
printf("\n\n");
}
return 0;
}
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