diff options
Diffstat (limited to 'patches/gcc-4.7.2/0600-Backport-the-change-to-the-hard-float-loader-path.-C.patch')
| -rw-r--r-- | patches/gcc-4.7.2/0600-Backport-the-change-to-the-hard-float-loader-path.-C.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/patches/gcc-4.7.2/0600-Backport-the-change-to-the-hard-float-loader-path.-C.patch b/patches/gcc-4.7.2/0600-Backport-the-change-to-the-hard-float-loader-path.-C.patch new file mode 100644 index 0000000..9557be4 --- /dev/null +++ b/patches/gcc-4.7.2/0600-Backport-the-change-to-the-hard-float-loader-path.-C.patch @@ -0,0 +1,74 @@ +From: Michael Olbrich <m.olbrich@pengutronix.de> +Date: Sun, 16 Dec 2012 20:05:00 +0100 +Subject: [PATCH] Backport the change to the hard float loader path. Changes + to /lib/ld-linux-armhf.so.3 + +Taken from linaro-gcc. + +2012-05-04 Michael Hope <michael.hope@linaro.org> + + Backport from mainline r186859: + + gcc/ + 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. + + Backport from mainline r187012: + + gcc/ + 2012-05-01 Richard Earnshaw <rearnsha@arm.com> + + * arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_DEFAULT): Avoid ifdef + comparing enumeration values. Update comments. + +Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> +--- + gcc/config/arm/linux-eabi.h | 22 ++++++++++++++++++---- + 1 file changed, 18 insertions(+), 4 deletions(-) + +diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h +index 80bd825..46d3bc6 100644 +--- a/gcc/config/arm/linux-eabi.h ++++ b/gcc/config/arm/linux-eabi.h +@@ -32,7 +32,8 @@ + while (false) + + /* We default to a soft-float ABI so that binaries can run on all +- target hardware. */ ++ target hardware. If you override this to use the hard-float ABI then ++ change the setting of GLIBC_DYNAMIC_LINKER_DEFAULT as well. */ + #undef TARGET_DEFAULT_FLOAT_ABI + #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT + +@@ -59,10 +60,23 @@ + #undef SUBTARGET_EXTRA_LINK_SPEC + #define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION + +-/* Use ld-linux.so.3 so that it will be possible to run "classic" +- GNU/Linux binaries on an EABI system. */ ++/* GNU/Linux on ARM currently supports three dynamic linkers: ++ - ld-linux.so.2 - for the legacy ABI ++ - ld-linux.so.3 - for the EABI-derived soft-float ABI ++ - ld-linux-armhf.so.3 - for the EABI-derived hard-float ABI. ++ All the dynamic linkers live in /lib. ++ We default to soft-float, but this can be overridden by changing both ++ GLIBC_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI. */ ++ + #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" ++#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT ++ ++#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. */ |