[Qemu-devel] [PATCH] Change search path for libraries for x86_64 linker script

[Qemu-devel] [PATCH] Change search path for libraries for x86_64 linker script

[quintela]

From: Juan Quintela <quintela@redhat.com>

Current script don't search in /usr/local/lib.  If you install locally libraries,
they normally install there, indeed in 64 bits system (a.k.a Anthony machine)

Looking at ouput of ld --verbose -v | grep SEARCH_DIR
(thanks Paolo Bonzini for the tip), this new list and order looks more natural,
and fixes Anthony problems.

Anthony, can you include this patch "before" my series?

Thanks in advance, Juan.


Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 x86_64.ld |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/x86_64.ld b/x86_64.ld
index 878dafb..065c14e 100644
--- a/x86_64.ld
+++ b/x86_64.ld
@@ -2,7 +2,7 @@
 OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", "elf64-x86-64")
 OUTPUT_ARCH(i386:x86-64)
 ENTRY(_start)
-SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib64");
+SEARCH_DIR("/user/local/lib64"); SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64");SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
 SECTIONS
 {
   /* Read-only sections, merged into text segment: */
-- 
1.6.2.5

[Qemu-devel] Re: [PATCH] Change search path for libraries for x86_64 linker script

[Paolo Bonzini]

> -SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib64");
> +SEARCH_DIR("/user/local/lib64"); SEARCH_DIR("/lib64"); SEARCH_DIR("/usr/lib64");SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
>   SECTIONS
>   {
>     /* Read-only sections, merged into text segment: */

What I was thinking about was extracting it at configure time inside the 
linker script, like

ld --verbose -v | grep SEARCH_DIR > config.ld
sed '/SEARCH_DIR/{;rconfig.ld;s/.*//;}' x86_64.ld.in > x86_64.ld

but besides the typo "/user" this looks good enough to me.

Paolo