5cb608d7e1
Delete device names from all the drivers. Move device inslude files from include/sys to include/machine directory. Only include files which have something useful for user layer (like special ioctls codes) should be placed into sys.
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/map.h>
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#include <sys/inode.h>
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#include <sys/user.h>
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#include <sys/proc.h>
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#include <sys/buf.h>
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#include <sys/namei.h>
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#include <sys/fs.h>
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#include <sys/mount.h>
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#include <sys/file.h>
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#include <sys/resource.h>
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#include <sys/exec.h>
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#include <sys/exec_aout.h>
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#include <sys/dir.h>
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#include <sys/uio.h>
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#include <machine/debug.h>
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int exec_aout_check(struct exec_params *epp)
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{
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int error;
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if (epp->hdr_len < sizeof(struct exec))
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return ENOEXEC;
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if (!(N_GETMID(epp->hdr.aout) == MID_ZERO &&
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N_GETFLAG(epp->hdr.aout) == 0))
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return ENOEXEC;
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switch (N_GETMAGIC(epp->hdr.aout)) {
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case OMAGIC:
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epp->hdr.aout.a_data += epp->hdr.aout.a_text;
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epp->hdr.aout.a_text = 0;
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break;
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default:
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printf("Bad a.out magic = %0o\n", N_GETMAGIC(epp->hdr.aout));
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return ENOEXEC;
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}
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/*
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* Save arglist
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*/
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exec_save_args(epp);
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DEBUG("Exec file header:\n");
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DEBUG("a_midmag = %#x\n", epp->hdr.aout.a_midmag); /* magic number */
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DEBUG("a_text = %d\n", epp->hdr.aout.a_text); /* size of text segment */
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DEBUG("a_data = %d\n", epp->hdr.aout.a_data); /* size of initialized data */
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DEBUG("a_bss = %d\n", epp->hdr.aout.a_bss); /* size of uninitialized data */
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DEBUG("a_reltext = %d\n", epp->hdr.aout.a_reltext); /* size of text relocation info */
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DEBUG("a_reldata = %d\n", epp->hdr.aout.a_reldata); /* size of data relocation info */
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DEBUG("a_syms = %d\n", epp->hdr.aout.a_syms); /* size of symbol table */
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DEBUG("a_entry = %#x\n", epp->hdr.aout.a_entry); /* entry point */
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/*
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* Set up memory allocation
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*/
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epp->text.vaddr = epp->heap.vaddr = NO_ADDR;
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epp->text.len = epp->heap.len = 0;
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epp->data.vaddr = (caddr_t)USER_DATA_START;
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epp->data.len = epp->hdr.aout.a_data;
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epp->bss.vaddr = epp->data.vaddr + epp->data.len;
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epp->bss.len = epp->hdr.aout.a_bss;
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epp->heap.vaddr = epp->bss.vaddr + epp->bss.len;
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epp->heap.len = 0;
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epp->stack.len = SSIZE + roundup(epp->argbc + epp->envbc, NBPW) + (epp->argc + epp->envc+4)*NBPW;
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epp->stack.vaddr = (caddr_t)USER_DATA_END - epp->stack.len;
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/*
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* Allocate core at this point, committed to the new image.
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* TODO: What to do for errors?
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*/
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exec_estab(epp);
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/* read in text and data */
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DEBUG("reading a.out image\n");
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error = rdwri (UIO_READ, epp->ip,
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(caddr_t)epp->data.vaddr, epp->hdr.aout.a_data,
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sizeof(struct exec) + epp->hdr.aout.a_text, IO_UNIT, 0);
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if (error)
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DEBUG("read image returned error=%d\n", error);
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if (error) {
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/*
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* Error - all is lost, when the old image is possible corrupt
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* and we could not load a new.
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*/
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psignal (u.u_procp, SIGSEGV);
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return error;
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}
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exec_clear(epp);
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exec_setupstack(epp->hdr.aout.a_entry, epp);
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return 0;
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}
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