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bsd-user: Fix calculation of size to allocate

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It was incorrect to subtract off the size of an unsigned int here.  In
bsd-user fork, this change was made when moving the arch specific items
to specific files.  The size in BSD that's available for the arguments
does not need a return address subtracted from it.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2021-04-29 18:47:51 -06:00
parent d37853f92f
commit 223005f058
1 changed files with 2 additions and 3 deletions
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5
bsd-user/bsdload.c
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@ -143,10 +143,9 @@ 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 retval, i;
int i;
bprm->p = TARGET_PAGE_SIZE * MAX_ARG_PAGES - sizeof(unsigned int); bprm->p = TARGET_PAGE_SIZE * MAX_ARG_PAGES;
for (i = 0; i < MAX_ARG_PAGES; i++) { /* clear page-table */ for (i = 0; i < MAX_ARG_PAGES; i++) { /* clear page-table */
bprm->page[i] = NULL; bprm->page[i] = NULL;
} }