From: Mark Wielaard <mark@klomp.org>
Date: Tue, 15 Sep 2020 13:43:10 +0000 (+0200)
Subject: debuginfod-find: Support compressed (kernel) ELF images.
X-Git-Tag: elfutils-0.182~29
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0ba7476d36100c015c35c744e871c4e64d52154a;p=thirdparty%2Felfutils.git

debuginfod-find: Support compressed (kernel) ELF images.

By using dwelf_elf_begin instead of elf_begin we automatically get
support for determining the build-id of compressed (kernel) images.

https://sourceware.org/bugzilla/show_bug.cgi?id=26599

Signed-off-by: Mark Wielaard <mark@klomp.org>
---

diff --git a/debuginfod/ChangeLog b/debuginfod/ChangeLog
index db8a76a76..41897a3aa 100644
--- a/debuginfod/ChangeLog
+++ b/debuginfod/ChangeLog
@@ -1,3 +1,7 @@
+2020-09-15  Mark Wielaard  <mark@klomp.org>
+
+	* debuginfod-find.c (main): Use dwelf_elf_begin.
+
 2020-07-03  Alice Zhang <alizhang@redhat.com>
 
 	* debuginfod-client.c (debuginfod_query_server): Use strncasecmp
diff --git a/debuginfod/debuginfod-find.c b/debuginfod/debuginfod-find.c
index 83a43ce4b..214256da3 100644
--- a/debuginfod/debuginfod-find.c
+++ b/debuginfod/debuginfod-find.c
@@ -138,9 +138,10 @@ main(int argc, char** argv)
     }
   if (fd >= 0)
     {
-      elf = elf_begin (fd, ELF_C_READ_MMAP_PRIVATE, NULL);
+      elf = dwelf_elf_begin (fd);
       if (elf == NULL)
-        fprintf (stderr, "Cannot elf_begin %s: %s\n", build_id, elf_errmsg(-1));
+        fprintf (stderr, "Cannot open as ELF file %s: %s\n", build_id,
+		 elf_errmsg (-1));
     }
   if (elf != NULL)
     {