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/* round up i to be a multiple of (n) */
#define ROUND_UP(i,n) ((((int) (i) + n-1)/(n)) *(n))
#define MAXPATHLEN 512
int init_address = 0;
#ifdef HPUX_SOM
#include <a.out.h>
#define GET_HEADERS(fp) \
struct header hdr; \
struct som_exec_auxhdr somhdr; \
if (sizeof(hdr) !=fread(&hdr,1,sizeof(hdr),fp)) \
{FEerror("could not read header",0);} \
if (hdr.aux_header_size) \
{fseek(fp,hdr.aux_header_location,0); \
if (sizeof(somhdr) != fread(&somhdr,1,sizeof(somhdr),fp)) \
{FEerror("could not read header",0);}} \
else { somhdr.exec_tsize=0;somhdr.exec_dsize=0;somhdr.exec_bsize=0;}
#define SET_TOTAL_SPACE(total,fp) \
total= ROUND_UP(somhdr.exec_tsize,sizeof(double)) \
+ somhdr.exec_dsize + somhdr.exec_bsize;\
#define READ_FASL_TO_MEMORY(memory,fp) \
do{ char *p = memory->cfd.cfd_start; \
init_address = ((char *)somhdr.exec_entry - p); \
if (init_address > 1000) printf("entry is offset at %x(%d)",init_address); \
fseek(fp,somhdr.exec_tfile,0) ; \
fread(p,1,somhdr.exec_tsize,fp); \
fseek(fp,somhdr.exec_dfile,0) ; \
if ((int)(p + *data_off) != somhdr.exec_dmem) \
FEerror("bad data offset",0);\
fread(p+ *data_off,1, \
somhdr.exec_dsize,fp); \
}while(0)
#define TXT_ALIGN 4096
#undef BSD
#endif
#ifdef BSD
#include <a.out.h>
#define GET_HEADERS(fp) \
struct exec hdr; fseek(fp,0,0);\
fread(&hdr,1,sizeof(hdr),fp); \
#define SET_TOTAL_SPACE(total,fp) \
total = hdr.a_txtsize + hdr.a_datasize + header.a_bss;
#define READ_FASL_TO_MEMORY(memory,fp) \
fseek(fp,sizeof(struct header) ,0); \
fread(memory->cfd.cfd_start,1,memory->cfd.cfd_size,fp); \
#endif
read_text_and_data(memory,fp,data_off)
object memory;
FILE *fp;
int *data_off;
{ int total;
GET_HEADERS(fp);
SET_TOTAL_SPACE(total,fp);
*data_off = ROUND_UP(somhdr.exec_tsize,sizeof(double));
if (total > memory->cfd.cfd_size)
{ memory->cfd.cfd_size = total; return 0;}
READ_FASL_TO_MEMORY(memory,fp);
return 1;
}
#ifndef TXT_ALIGN
#define TXT_ALIGN sizeof(double)
#endif
static
fasload_help(faslfile,lib_string)
object faslfile;
char *lib_string;
{ char filename[MAXPATHLEN],tmpfile[MAXPATHLEN];
char command [2*MAXPATHLEN];
int total;
object memory ;
FILE *fp;
faslfile = open_stream(faslfile, smm_input, Cnil, sKerror);
fp = faslfile->sm.sm_fp;
{ int data_off = 0;
GET_HEADERS(fp);
SET_TOTAL_SPACE(total,fp);
memory=alloc_object(t_cfdata);
memory->cfd.cfd_self = 0;
memory->cfd.cfd_start = 0;
memory->cfd.cfd_size = total;
sprintf(tmpfile,"/tmp/fasl%d",getpid());
AGAIN:
memory->cfd.cfd_start = ALLOC_ALIGNED(alloc_contblock,
memory->cfd.cfd_size,TXT_ALIGN);
coerce_to_filename(faslfile, filename);
LD_COMMAND(command,
kcl_self,
memory->cfd.cfd_start,
filename,
(lib_string ? lib_string : " "),
tmpfile);
if (system(command) != 0)
{ FEerror("The linkage editor failed.", 0);}
if(symbol_value(sLAload_verboseA)==sLAload_verboseA)
{ printf("%s\n",command); fflush(stdout);}
{FILE *fp1 = fopen(tmpfile,"r");
if (fp1==0) {FEerror("Couldn't open tmpfile",0);}
if(read_text_and_data(memory,fp1,&data_off) ==0)
{fclose(fp1); goto AGAIN;}
fclose(fp1);
}}
unlink(tmpfile);
SEEK_TO_END_OFILE(fp);
call_init(init_address,memory,read_fasl_vector(faslfile),0);
close_stream (faslfile);
if(symbol_value(sLAload_verboseA)!=Cnil)
printf("start address -T %x ",memory->cfd.cfd_start);
return(memory->cfd.cfd_size);
}
fasload(faslfile)
object faslfile;
{return fasload_help(faslfile,0);}
#define FASLINK
siLfaslink()
{ object *base = vs_base;
check_arg(2);
vs_base[0] = make_fixnum(fasload_help(base[0],object_to_string(base[1])));
printf("done link"); fflush(stdout);
vs_top = vs_base+1;
return ;
}
int
faslink(faslfile, ldargstring)
object faslfile, ldargstring;
{printf("later");}
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