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Align stack when loading bFLT binaries. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2478 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2007-03-15 21:56:07 +00:00
parent bd967e05da
commit b35d7448b1
1 changed files with 7 additions and 0 deletions
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7
linux-user/flatload.c
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@ -756,6 +756,13 @@ int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
p = copy_strings(p, bprm->argc, bprm->argv);
/* Align stack. */
sp = p & ~(target_ulong)(sizeof(target_ulong) - 1);
/* Enforce final stack alignment of 16 bytes. This is sufficient
for all current targets, and excess alignment is harmless. */
stack_len = bprm->envc + bprm->argc + 2;
stack_len += 3; /* argc, arvg, argp */
stack_len *= sizeof(target_ulong);
if ((sp + stack_len) & 15)
sp -= 16 - ((sp + stack_len) & 15);
sp = loader_build_argptr(bprm->envc, bprm->argc, sp, p, 1);
/* Fake some return addresses to ensure the call chain will