From: Florian Weimer <fweimer@redhat.com>
To: libc-alpha@sourceware.org
Subject: [PATCH v2] elf: Install a symbolic link to ld.so as /usr/bin/ld.so
Date: Mon, 15 Nov 2021 20:07:58 +0100 [thread overview]
Message-ID: <87a6i5fd9t.fsf@oldenburg.str.redhat.com> (raw)
This makes ld.so features such as --preload, --audit,
and --list-diagnostics more accessible to end users because they
do not need to know the ABI name of the dynamic loader.
---
v2: Use $(make-link).
NEWS | 4 ++++
elf/Makefile | 7 ++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/NEWS b/NEWS
index f10971b180..2f56f3db28 100644
--- a/NEWS
+++ b/NEWS
@@ -68,6 +68,10 @@ Major new features:
to be used by compilers for optimizing usage of 'memcmp' when its
return value is only used for its boolean status.
+* A symbolic link to the dynamic linker is now installed under
+ /usr/bin/ld.so (or ${bindir}/ld.so if glibc is not configured with
+ --prefix=/usr).
+
Deprecated and removed features, and other changes affecting compatibility:
* The r_version update in the debugger interface makes the glibc binary
diff --git a/elf/Makefile b/elf/Makefile
index 72004484db..06cfde778c 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -110,7 +110,7 @@ endif
ifeq (yes,$(build-shared))
extra-objs = $(all-rtld-routines:%=%.os) sofini.os interp.os
generated += librtld.os dl-allobjs.os ld.so ldd
-install-others = $(inst_rtlddir)/$(rtld-installed-name)
+install-others = $(inst_rtlddir)/$(rtld-installed-name) $(inst_bindir)/ld.so
install-bin-script = ldd
endif
@@ -682,6 +682,11 @@ $(inst_rtlddir)/$(rtld-installed-name): $(objpfx)ld.so $(+force)
$(make-target-directory)
$(do-install-program)
+# Creates the relative /usr/bin/ld.so symbolic link.
+$(inst_bindir)/ld.so: $(inst_rtlddir)/$(rtld-installed-name)
+ $(make-target-directory)
+ $(make-link)
+
# Special target called by parent to install just the dynamic linker.
.PHONY: ldso_install
ldso_install: $(inst_rtlddir)/$(rtld-installed-name)
next reply other threads:[~2021-11-15 19:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-15 19:07 Florian Weimer [this message]
2021-11-23 15:56 ` Florian Weimer
2021-11-23 16:19 ` Andreas Schwab
2021-11-23 16:38 ` Florian Weimer
2021-11-24 17:00 ` Andreas Schwab
2021-12-03 14:05 ` Florian Weimer
2021-12-06 17:19 ` Andreas Schwab
2021-12-04 19:12 ` Florian Weimer
2021-12-05 21:36 ` Michael Hudson-Doyle
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