diff options
| author | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-03-15 21:56:07 +0000 |
|---|---|---|
| committer | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-03-15 21:56:07 +0000 |
| commit | b35d7448b1d27a77bc6f59acc697710d5bd3823c (patch) | |
| tree | 453edcbd611b995d83722c748756ddbd4c9ddfb1 /linux-user/flatload.c | |
| parent | bd967e05da8cbb2c863b0c75632530966cafcc11 (diff) | |
| download | qemu-b35d7448b1d27a77bc6f59acc697710d5bd3823c.tar.gz | |
Align stack when loading bFLT binaries.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2478 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'linux-user/flatload.c')
| -rw-r--r-- | linux-user/flatload.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/linux-user/flatload.c b/linux-user/flatload.c index 7e3296e5aa..c9f1acd55f 100644 --- a/linux-user/flatload.c +++ b/linux-user/flatload.c @@ -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 |