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Rely on the compiler to be properly setup for the default ABI.
When installing-headers, there are two cases:
- NPTL: no issue, a cross-compiler is already expected
- LinuxThreads: no issue, EABI/OABI has no impact on installed headers.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Cc: Khem Raj <raj.khem@gmail.com>
Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Cc: Carmelo AMOROSO <carmelo.amoroso@st.com>
---
extra/Configs/Config.arm | 11 -----------
libc/sysdeps/linux/arm/Makefile.arch | 9 +++++++--
libc/sysdeps/linux/arm/bits/huge_val.h | 4 ++--
3 files changed, 9 insertions(+), 15 deletions(-)
diff --git a/extra/Configs/Config.arm b/extra/Configs/Config.arm
index 9aa9e56..85f2515 100644
--- a/extra/Configs/Config.arm
+++ b/extra/Configs/Config.arm
@@ -12,17 +12,6 @@ config FORCE_OPTIONS_FOR_ARCH
default y
select ARCH_ANY_ENDIAN
-config CONFIG_ARM_EABI
- bool "Build for EABI"
- help
- If you say 'y' here, functions and constants required by the
- ARM EABI will be built into the library. You should say 'y'
- if your compiler uses the ARM EABI, in which case you will also
- need a kernel supporting the EABI system call interface.
-
- If you say 'n' here, then the library will be built for the
- old Linux ABI.
-
config COMPILE_IN_THUMB_MODE
bool "Build using Thumb mode"
select USE_BX
diff --git a/libc/sysdeps/linux/arm/Makefile.arch b/libc/sysdeps/linux/arm/Makefile.arch
index b53c539..14279e0 100644
--- a/libc/sysdeps/linux/arm/Makefile.arch
+++ b/libc/sysdeps/linux/arm/Makefile.arch
@@ -24,7 +24,12 @@ ifeq ($(UCLIBC_HAS_ADVANCED_REALTIME),y)
CSRC += posix_fadvise.c posix_fadvise64.c
endif
-ifeq ($(CONFIG_ARM_EABI),y)
+# Is our compiler set up for EABI ?
+IS_EABI:=$(shell $(CC) $(CFLAGS) -x c - -E -dM </dev/null 2>/dev/null \
+ |sed -r -e '/^\#[[:space:]]*define[[:space:]]+__ARM_EABI__([[:space:]]+1)?$$/!d; s/.+/y/;' \
+ )
+
+ifeq ($(IS_EABI),y)
CSRC += aeabi_assert.c aeabi_atexit.c aeabi_errno_addr.c \
aeabi_localeconv.c aeabi_memclr.c aeabi_memcpy.c \
aeabi_memmove.c aeabi_memset.c find_exidx.c
@@ -37,7 +42,7 @@ else
CSRC += syscall.c
endif
-ifeq ($(CONFIG_ARM_EABI),y)
+ifeq ($(IS_EABI),y)
libc-static-y += $(ARCH_OUT)/aeabi_lcsts.o $(ARCH_OUT)/aeabi_math.o \
$(ARCH_OUT)/aeabi_sighandlers.o
libc-nonshared-y += $(ARCH_OUT)/aeabi_lcsts.os $(ARCH_OUT)/aeabi_math.os \
diff --git a/libc/sysdeps/linux/arm/bits/huge_val.h b/libc/sysdeps/linux/arm/bits/huge_val.h
index a215f3c..745e0bb 100644
--- a/libc/sysdeps/linux/arm/bits/huge_val.h
+++ b/libc/sysdeps/linux/arm/bits/huge_val.h
@@ -32,7 +32,7 @@
# define HUGE_VAL (__extension__ 0x1.0p2047)
#elif defined __GNUC__
-#ifndef __CONFIG_ARM_EABI__
+#ifndef __ARM_EABI__
# define HUGE_VAL \
(__extension__ \
((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \
@@ -50,7 +50,7 @@
typedef union { unsigned char __c[8]; double __d; } __huge_val_t;
-#ifndef __CONFIG_ARM_EABI__
+#ifndef __ARM_EABI__
# if __BYTE_ORDER == __BIG_ENDIAN
# define __HUGE_VAL_bytes { 0, 0, 0, 0, 0x7f, 0xf0, 0, 0 }
# endif
--
1.7.1
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