git: 4959d4f3eaab - stable/13 - libc: implement __tls_get_addr() for static binaries

[Konstantin Belousov]

The branch stable/13 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=4959d4f3eaab7e592657032a0b42b34c5d5c174b

commit 4959d4f3eaab7e592657032a0b42b34c5d5c174b
Author:     Konstantin Belousov <kib at FreeBSD.org>
AuthorDate: 2021-04-05 03:29:47 +0000
Commit:     Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-04-23 11:14:07 +0000

    libc: implement __tls_get_addr() for static binaries
    
    (cherry picked from commit ca46b5698e8ac38ab45d781d592700be59e7de97)
---
 lib/libc/gen/tls.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/lib/libc/gen/tls.c b/lib/libc/gen/tls.c
index 2a64b5266f4a..69b87aea52bf 100644
--- a/lib/libc/gen/tls.c
+++ b/lib/libc/gen/tls.c
@@ -103,25 +103,32 @@ static size_t libc_tls_init_align;
 static void *libc_tls_init;
 #endif
 
+void *
+__libc_tls_get_addr(void *vti)
+{
+	Elf_Addr **dtvp, *dtv;
+	tls_index *ti;
+
+	dtvp = _get_tp();
+	dtv = *dtvp;
+	ti = vti;
+	return ((char *)(dtv[ti->ti_module + 1] + ti->ti_offset) +
+	    TLS_DTV_OFFSET);
+}
+
 #ifdef __i386__
 
 /* GNU ABI */
 
 __attribute__((__regparm__(1)))
 void *
-___libc_tls_get_addr(void *ti __unused)
+___libc_tls_get_addr(void *vti)
 {
-	return (0);
+	return (__libc_tls_get_addr(vti));
 }
 
 #endif
 
-void *
-__libc_tls_get_addr(void *ti __unused)
-{
-	return (0);
-}
-
 #ifndef PIC
 
 static void *