diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2024-06-01 03:39:03 -0700 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2024-06-04 16:40:42 +0200 |
| commit | 138274e92a01be8a98392489b1a2f497ab11c201 (patch) | |
| tree | f0be841a1e915e86d4215326a13654f8034632a4 /libc/sysdeps/linux/xtensa/makecontext.c | |
| parent | 8bb33a2e1f2baec2078581d77e181f1ead5f51aa (diff) | |
xtensa: add FDPIC support
This change implements Xtensa FDPIC ABI as specified in the first
version of the following document:
https://github.com/jcmvbkbc/xtensa-abi/blob/master/fdpic-xtensa.txt
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/xtensa/makecontext.c')
| -rw-r--r-- | libc/sysdeps/linux/xtensa/makecontext.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/xtensa/makecontext.c b/libc/sysdeps/linux/xtensa/makecontext.c index da26a0130..0a8f7116f 100644 --- a/libc/sysdeps/linux/xtensa/makecontext.c +++ b/libc/sysdeps/linux/xtensa/makecontext.c @@ -73,7 +73,12 @@ __makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...) sp -= 4 * (argc + 2); sp &= -16; +#ifdef __FDPIC__ + ucp->uc_mcontext.sc_pc = ((unsigned long *) __start_context)[0]; + ucp->uc_mcontext.sc_a[15] = ((unsigned long *) __start_context)[1]; +#else ucp->uc_mcontext.sc_pc = (unsigned long) __start_context; +#endif ucp->uc_mcontext.sc_a[1] = sp; ucp->uc_mcontext.sc_a[12] = (unsigned long) func; ucp->uc_mcontext.sc_a[13] = (unsigned long) ucp->uc_link; |