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bsd-user: pass the bsd_param into loader_exec

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Pass the bsd_param into loader_exec, and adjust. We use it to track the
inital stack allocation and to set stack, open files, and other state
shared between bsdload.c and elfload.c

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Warner Losh 2021-04-29 18:45:13 -06:00
parent 66ef252fab
commit d37853f92f
3 changed files with 27 additions and 20 deletions
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37
bsd-user/bsdload.c
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@ -140,35 +140,36 @@ abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
}
int loader_exec(const char *filename, char **argv, char **envp,
struct target_pt_regs *regs, struct image_info *infop)
struct target_pt_regs *regs, struct image_info *infop,
struct bsd_binprm *bprm)
{
struct bsd_binprm bprm;
int retval;
int i;
bprm.p = TARGET_PAGE_SIZE * MAX_ARG_PAGES - sizeof(unsigned int);
for (i = 0 ; i < MAX_ARG_PAGES ; i++) { /* clear page-table */
bprm.page[i] = NULL;
bprm->p = TARGET_PAGE_SIZE * MAX_ARG_PAGES - sizeof(unsigned int);
for (i = 0; i < MAX_ARG_PAGES; i++) { /* clear page-table */
bprm->page[i] = NULL;
}
retval = open(filename, O_RDONLY);
if (retval < 0) {
return retval;
}
bprm.fd = retval;
bprm.filename = (char *)filename;
bprm.argc = count(argv);
bprm.argv = argv;
bprm.envc = count(envp);
bprm.envp = envp;
retval = prepare_binprm(&bprm);
bprm->fd = retval;
bprm->filename = (char *)filename;
bprm->argc = count(argv);
bprm->argv = argv;
bprm->envc = count(envp);
bprm->envp = envp;
retval = prepare_binprm(bprm);
if (retval >= 0) {
if (bprm.buf[0] == 0x7f
&& bprm.buf[1] == 'E'
&& bprm.buf[2] == 'L'
&& bprm.buf[3] == 'F') {
retval = load_elf_binary(&bprm, regs, infop);
if (bprm->buf[0] == 0x7f
&& bprm->buf[1] == 'E'
&& bprm->buf[2] == 'L'
&& bprm->buf[3] == 'F') {
retval = load_elf_binary(bprm, regs, infop);
} else {
fprintf(stderr, "Unknown binary format\n");
return -1;
@ -183,7 +184,7 @@ int loader_exec(const char *filename, char **argv, char **envp,
/* Something went wrong, return the inode and free the argument pages*/
for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
g_free(bprm.page[i]);
g_free(bprm->page[i]);
}
return retval;
}