b1dca6
commit db03874df9843ab98c4faeb658f04d17e6db83a6
b1dca6
Author: Florian Weimer <fweimer@redhat.com>
b1dca6
Date:   Thu Oct 8 15:33:00 2020 +0200
b1dca6
b1dca6
    elf: Print the full name of the dynamic loader in the ld.so help message
b1dca6
    
b1dca6
    This requires defining a macro for the full path, matching the
b1dca6
    -Wl,--dynamic-link= arguments used for linking glibc programs,
b1dca6
    and ldd script.
b1dca6
    
b1dca6
    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
b1dca6
b1dca6
diff --git a/elf/Makefile b/elf/Makefile
b1dca6
index e5666e5bf7817c3c..bc96b8fd65e376cc 100644
b1dca6
--- a/elf/Makefile
b1dca6
+++ b/elf/Makefile
b1dca6
@@ -641,7 +641,8 @@ libof-ldconfig = ldconfig
b1dca6
 CFLAGS-dl-cache.c += $(SYSCONF-FLAGS)
b1dca6
 CFLAGS-cache.c += $(SYSCONF-FLAGS)
b1dca6
 CFLAGS-rtld.c += $(SYSCONF-FLAGS)
b1dca6
-CFLAGS-dl-usage.c += $(SYSCONF-FLAGS)
b1dca6
+CFLAGS-dl-usage.c += $(SYSCONF-FLAGS) \
b1dca6
+  -D'RTLD="$(rtlddir)/$(rtld-installed-name)"'
b1dca6
 
b1dca6
 cpp-srcs-left := $(all-rtld-routines:=.os)
b1dca6
 lib := rtld
b1dca6
diff --git a/elf/dl-usage.c b/elf/dl-usage.c
b1dca6
index 8c24c13770500df9..1003a435bfc2b39e 100644
b1dca6
--- a/elf/dl-usage.c
b1dca6
+++ b/elf/dl-usage.c
b1dca6
@@ -76,6 +76,8 @@ setting environment variables (which would be inherited by subprocesses).\n\
b1dca6
   --argv0 STRING        set argv[0] to STRING before running\n\
b1dca6
   --help                display this help and exit\n\
b1dca6
   --version             output version information and exit\n\
b1dca6
+\n\
b1dca6
+This program interpreter self-identifies as: " RTLD "\n\
b1dca6
 ",
b1dca6
               argv0);
b1dca6
   _exit (EXIT_SUCCESS);