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ARM: 7705/1: use optimized do_div only for EABI 

In OABI configurations, some uses of the do_div function
cause gcc to run out of registers. To work around that,
we can force the use of the out-of-line version for
configurations that build a OABI kernel.

Without this patch, building netx_defconfig results in:

net/core/pktgen.c: In function 'pktgen_if_show':
net/core/pktgen.c:682:2775: error: can't find a register in class 'GENERAL_REGS' while reloading 'asm'
net/core/pktgen.c:682:3153: error: can't find a register in class 'GENERAL_REGS' while reloading 'asm'
net/core/pktgen.c:682:2775: error: 'asm' operand has impossible constraints
net/core/pktgen.c:682:3153: error: 'asm' operand has impossible constraints

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hifive-unleashed-5.1
Arnd Bergmann 2013-04-29 16:06:10 +01:00 committed by Russell King
parent 9394c1c65e
commit 049f3e84d3
1 changed files with 1 additions and 1 deletions
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2
arch/arm/include/asm/div64.h
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@ -46,7 +46,7 @@
__rem; \
})
#if __GNUC__ < 4
#if __GNUC__ < 4 || !defined(CONFIG_AEABI)
/*
* gcc versions earlier than 4.0 are simply too problematic for the