Module Name: src
Committed By: martin
Date: Tue Oct 3 09:48:19 UTC 2023
Modified Files:
src/libexec/ld.elf_so: rtld.c
Log Message:
PR 57628: at the end of _rtld_init() explicitly initialize the ld.elf_so
local copy of the atomic access support functions for machines that do not
implement all required ops in hardware (like 32bit sparc).
XXX would be better to figure out a way to share this copy with libc
(thereby using half as many RAS sections). But even if we would share it,
we have to init it early enough for ld.elf_so internal uses.
To generate a diff of this commit:
cvs rdiff -u -r1.215 -r1.216 src/libexec/ld.elf_so/rtld.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/libexec/ld.elf_so/rtld.c
diff -u src/libexec/ld.elf_so/rtld.c:1.215 src/libexec/ld.elf_so/rtld.c:1.216
--- src/libexec/ld.elf_so/rtld.c:1.215 Sun Jul 30 09:20:14 2023
+++ src/libexec/ld.elf_so/rtld.c Tue Oct 3 09:48:18 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: rtld.c,v 1.215 2023/07/30 09:20:14 riastradh Exp $ */
+/* $NetBSD: rtld.c,v 1.216 2023/10/03 09:48:18 martin Exp $ */
/*
* Copyright 1996 John D. Polstra.
@@ -40,7 +40,7 @@
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: rtld.c,v 1.215 2023/07/30 09:20:14 riastradh Exp $");
+__RCSID("$NetBSD: rtld.c,v 1.216 2023/10/03 09:48:18 martin Exp $");
#endif /* not lint */
#include <sys/param.h>
@@ -70,6 +70,13 @@ __RCSID("$NetBSD: rtld.c,v 1.215 2023/07
#endif
/*
+ * Hidden function from common/lib/libc/atomic - nop on machines
+ * with enough atomic ops. Need to explicitly call it early.
+ * libc has the same symbol and will initialize itself, but not our copy.
+ */
+void __libc_atomic_init(void);
+
+/*
* Function declarations.
*/
static void _rtld_init(caddr_t, caddr_t, const char *);
@@ -404,6 +411,8 @@ _rtld_init(caddr_t mapbase, caddr_t relo
ehdr = (Elf_Ehdr *)mapbase;
_rtld_objself.phdr = (Elf_Phdr *)((char *)mapbase + ehdr->e_phoff);
_rtld_objself.phsize = ehdr->e_phnum * sizeof(_rtld_objself.phdr[0]);
+
+ __libc_atomic_init();
}
/*
