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Some fixes for aelflod and aslod.

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Copy rhead() and rsect() from aslod to aelflod, so aelflod can work
for machine with 64-bit long.

In aelflod, fix ELF header so file(1) no longer reports "corrupted
section header size".

Signed-off-by: Manoel Trapier <godzil@godzil.net>
This commit is contained in:
George Koehler 2013-05-17 19:31:30 +02:00 committed by Manoël Trapier
parent 9da790283e
commit c602379db9
2 changed files with 25 additions and 36 deletions
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59
util/amisc/aelflod.c
View File

@ -26,6 +26,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "../../modules/src/object/obj.h"
#include <stdarg.h>
#include <stdint.h>
#include <string.h>
@ -70,7 +71,7 @@ const char elf_le_ident_string[] = {
char hdr[HDR_LENGTH] ;
/* Segment numbers understood by aslod. */
/* Segment numbers understood by aelflod. */
enum {
TEXT = 0,
@ -222,42 +223,25 @@ void emitphdr(unsigned long address, unsigned long filesize,
fileoffset += filesize;
}
void iconvert(char* buf, char* str, char* fmt)
{
register char *nf, *ni, *no ;
int last, i ;
uint32_t value ;
ni=buf ; no=str ; nf=fmt ;
while (( last = *nf++ )) {
last -= '0' ;
if ( last<1 || last >9 ) fatal("illegal out.h format string\n");
value=0 ;
i=last ;
while ( i-- ) {
value = (value<<8) + (ni[i]&0xFF) ;
}
switch ( last ) {
case 0 : break ;
case 1 : *no= value ; break ;
case 2 : *(uint16_t *)no = value ; break ;
case 4 : *(uint32_t *)no = value ; break ;
default :
fatal("illegal out.h format string\n");
}
ni += last ; no += last ;
}
}
/* Read the ack.out file header. */
int rhead(FILE* f, struct outhead* head)
{
char buf[sizeof(struct outhead)];
char buf[SZ_HEAD], *c;
if (fread(buf, sizeof(buf), 1, f) != 1)
return 0;
iconvert(buf, (char*) head, SF_HEAD);
c = buf;
head->oh_magic = uget2(c); c += 2;
head->oh_stamp = uget2(c); c += 2;
head->oh_flags = uget2(c); c += 2;
head->oh_nsect = uget2(c); c += 2;
head->oh_nrelo = uget2(c); c += 2;
head->oh_nname = uget2(c); c += 2;
head->oh_nemit = get4(c); c += 4;
head->oh_nchar = get4(c);
return 1;
}
@ -265,12 +249,17 @@ int rhead(FILE* f, struct outhead* head)
int rsect(FILE* f, struct outsect* sect)
{
char buf[sizeof(struct outsect)];
char buf[SZ_SECT], *c;
if (fread(buf, sizeof(buf), 1, f) != 1)
return 0;
iconvert(buf, (char*) sect, SF_SECT);
c = buf;
sect->os_base = get4(c); c += 4;
sect->os_size = get4(c); c += 4;
sect->os_foff = get4(c); c += 4;
sect->os_flen = get4(c); c += 4;
sect->os_lign = get4(c);
return 1 ;
}
@ -289,13 +278,13 @@ int main(int argc, char* argv[])
switch (argv[1][1])
{
case 'h':
fprintf(stderr, "%s: Syntax: aslod [-h] <inputfile> <outputfile>\n",
fprintf(stderr, "%s: Syntax: aelflod [-h] <inputfile> <outputfile>\n",
program);
exit(0);
default:
syntaxerror:
fatal("syntax error --- try -h for help)");
fatal("syntax error --- try -h for help");
}
argv++;
@ -409,7 +398,7 @@ int main(int argc, char* argv[])
emit16(ELF_HEADER_SIZE); /* elf header size */
emit16(PROGRAM_HEADER_SIZE); /* program header entry size */
emit16(1); /* number of program header entries */
emit16(0); /* section header entry size */
emit16(0x28); /* section header entry size */
emit16(0); /* number of section header entries */
emit16(0); /* section header string table index = SHN_UNDEF */

2
util/amisc/aslod.c
View File

@ -209,7 +209,7 @@ int main(int argc, char* argv[])
default:
syntaxerror:
fatal("syntax error --- try -h for help)");
fatal("syntax error --- try -h for help");
}
argv++;