Patchwork [10/15] elfutils: towards uClibc support: solve memcpy problem

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Submitter Thomas Petazzoni
Date Jan. 6, 2013, 3:22 p.m.
Message ID <f0becaaa58faa7a0bfe7a1bf9b8026e60137e57f.1357485747.git.thomas.petazzoni@free-electrons.com>
Download mbox | patch
Permalink /patch/209770/
State Accepted
Commit a64632e44728450e6fa814ce95fbb67161c8971a
Headers show

Comments

Thomas Petazzoni - Jan. 6, 2013, 3:22 p.m.
elfutils uses some strange internal alias of memcpy in glibc, so
workaround this when building with uClibc.

Heavily based from work done by Stefan Fröberg, but with many further
modifications by Thomas Petazzoni.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 package/elfutils/elfutils-03-memcpy-def.patch |   24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 package/elfutils/elfutils-03-memcpy-def.patch

Patch

diff --git a/package/elfutils/elfutils-03-memcpy-def.patch b/package/elfutils/elfutils-03-memcpy-def.patch
new file mode 100644
index 0000000..eb50cf6
--- /dev/null
+++ b/package/elfutils/elfutils-03-memcpy-def.patch
@@ -0,0 +1,24 @@ 
+Provide a compatibility alias __memcpy
+
+For some reason, libelf uses the internal glibc alias __memcpy, which
+doesn't exist in uClibc. Add a manual alias so that the build can
+proceed with uClibc.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: b/libelf/libelf.h
+===================================================================
+--- a/libelf/libelf.h
++++ b/libelf/libelf.h
+@@ -34,6 +34,11 @@
+ /* Get the ELF types.  */
+ #include <elf.h>
+ 
++#ifndef _LIBC
++#ifndef __mempcpy
++#define __mempcpy mempcpy
++#endif
++#endif
+ 
+ /* Known translation types.  */
+ typedef enum