git: 38efd4df23cf - main - rtld-elf: Mark tls_init_align __unused in free_tls for Variant I TLS.

From: John Baldwin <jhb_at_FreeBSD.org>
Date: Tue, 20 Jun 2023 19:39:19 UTC
The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=38efd4df23cff3e5722e7fc9094276fcdcff1824

commit 38efd4df23cff3e5722e7fc9094276fcdcff1824
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2023-06-20 19:38:48 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2023-06-20 19:38:48 +0000

    rtld-elf: Mark tls_init_align __unused in free_tls for Variant I TLS.
    
    Some architectures (powerpc and RISC-V) always use 0 for the post TLS
    size in which case tls_init_align isn't used by
    calculate_tls_post_size.  Use __unused to quiet the warning for these
    platforms.
    
    Reviewed by:    kib
    Differential Revision:  https://reviews.freebsd.org/D40673
---
 libexec/rtld-elf/rtld.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libexec/rtld-elf/rtld.c b/libexec/rtld-elf/rtld.c
index 173dcd4e9878..9a522bf721c5 100644
--- a/libexec/rtld-elf/rtld.c
+++ b/libexec/rtld-elf/rtld.c
@@ -5309,7 +5309,7 @@ free_tls(void *tcb, size_t tcbsize, size_t tcbalign __unused)
     Elf_Addr *dtv;
     Elf_Addr tlsstart, tlsend;
     size_t post_size;
-    size_t dtvsize, i, tls_init_align;
+    size_t dtvsize, i, tls_init_align __unused;
 
     assert(tcbsize >= TLS_TCB_SIZE);
     tls_init_align = MAX(obj_main->tlsalign, 1);