crosstool-ng/patches/gcc/4.7.4/100-hardfloat-ld.patch
Bernhard Walle 1a6e9782e2 cc/gcc: Fix dynamic linker path for hard float libc
When compiling glibc 2.16 and gcc 4.7.4 with CT_ARCH_FLOAT="hard",
I end up in a dynamic linker called /lib/ld-linux-armhf.so.3, but
gcc compiles the binaries with an ELF interpreter /lib/ld-linux.so.3.
That doesn't work.

This patch (which is included in recent gcc version and also is included
in Linaro 4.7 versions) fixes the problem. I just stripped the ChangeLog

diff from the original commit.

Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
2015-01-08 19:16:36 -08:00

45 lines
1.7 KiB
Diff

From 9dd1a0668e5ab10a5943fdd1aee2e1616d7fc7ed Mon Sep 17 00:00:00 2001
From: michaelh <michaelh@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 26 Apr 2012 04:33:08 +0000
Subject: [PATCH] 2012-04-26 Michael Hope <michael.hope@linaro.org>
Richard Earnshaw <rearnsha@arm.com>
* config/arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_SOFT_FLOAT): Define.
(GLIBC_DYNAMIC_LINKER_HARD_FLOAT): Define.
(GLIBC_DYNAMIC_LINKER_DEFAULT): Define.
(GLIBC_DYNAMIC_LINKER): Redefine to use the hard float path.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@186859 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/config/arm/linux-eabi.h | 12 +++++++++++-
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h
index 80bd825..2ace6f0 100644
--- a/gcc/config/arm/linux-eabi.h
+++ b/gcc/config/arm/linux-eabi.h
@@ -62,7 +62,17 @@
/* Use ld-linux.so.3 so that it will be possible to run "classic"
GNU/Linux binaries on an EABI system. */
#undef GLIBC_DYNAMIC_LINKER
-#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
+#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"
+#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"
+#if TARGET_DEFAULT_FLOAT_ABI == ARM_FLOAT_ABI_HARD
+#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_HARD_FLOAT
+#else
+#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
+#endif
+#define GLIBC_DYNAMIC_LINKER \
+ "%{mfloat-abi=hard:" GLIBC_DYNAMIC_LINKER_HARD_FLOAT "} \
+ %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
+ %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
/* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
use the GNU/Linux version, not the generic BPABI version. */
--
2.1.0