[erlang-questions] Enabling HiPE for ARMv7 (armv7l) ?
Winston Smith
smith.winston.101@REDACTED
Fri Dec 9 00:22:41 CET 2011
Building R14B04 on an ARMv7 (ARM Cortex A8 I think) works fine, but
HiPE is not enabled. It seems that in $ERL_TOP/erts/configure there's
a case statement (around line 5258 in R14B04) that checks the CPU type
which it gets from ac_cv_host which comes from config.sub. However,
the case statement only seems to support ARMv5:
case $chk_arch_ in
sun4u) ARCH=ultrasparc;;
sparc64) ARCH=sparc64;;
sun4v) ARCH=ultrasparc;;
i86pc) ARCH=x86;;
i386) ARCH=x86;;
i486) ARCH=x86;;
i586) ARCH=x86;;
i686) ARCH=x86;;
x86_64) ARCH=amd64;;
amd64) ARCH=amd64;;
macppc) ARCH=ppc;;
ppc) ARCH=ppc;;
ppc64) ARCH=ppc64;;
"Power Macintosh") ARCH=ppc;;
armv5b) ARCH=arm;;
armv5teb) ARCH=arm;;
armv5tel) ARCH=arm;;
tile) ARCH=tile;;
*) ARCH=noarch;;
esac
The output of uname -m is:
armv7l
Later, HiPE gets enabled (or disabled) in the following construct:
case "$ARCH-$OPSYS" in
x86-linux|amd64-linux|x86-darwin*|amd64-darwin*|ppc-linux|ppc64-linux|ppc-darwin|arm-linux|amd64-freebsd|x86-freebsd|x86-sol2|amd64-sol2|ultrasparc-linux)
enable_hipe=yes
;;
Is this just an omission on the case $chk_arch statement? Or is the
HiPE support for ARM truly limited to ARMv5; if so, what is the
reason/what needs to be done to support ARMv7?
Thanks in advance!
W.
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