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toolchain/uClibc: Disable mips16 for uClibc for now

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For now, build uclibc without -mips16. There's no mips16 syscall
support AFAIK and uclibc uses inline assembly syscalls a lot.

In addition, touching errno means touching a TLS model symbol, and
that's not supported in gcc 4.6.

The __set_errno macro can be put back to calling
errno_location(). This allows much of the library to be built in
mips16 mode. I don't understand the implications to the thread library
of doing this.

A list of "build as -mno-mips16" C source files can be placed in the
mips architecture-dependent build files. Maintaining the list would be
no fun.

Signed-off-by: Jay Carlson <nop@nop.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 36199
This commit is contained in:
Florian Fainelli 2013-04-05 12:36:00 +00:00
parent be5d8e6c87
commit 750115a65c
1 changed files with 2 additions and 0 deletions
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2
toolchain/uClibc/common.mk
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@ -44,6 +44,8 @@ GEN_CONFIG=$(SCRIPT_DIR)/kconfig.pl -n \
$(if $(wildcard $(CONFIG_DIR)/$(ARCH).$(BOARD)),.$(BOARD), \
$(if $(CONFIG_HAS_SPE_FPU),$(if $(wildcard $(CONFIG_DIR)/$(ARCH).e500),.e500))))
TARGET_CFLAGS := $(filter-out -mips16,$(TARGET_CFLAGS))
CPU_CFLAGS = \
-funsigned-char -fno-builtin -fno-asm \
--std=gnu99 -ffunction-sections -fdata-sections \