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authorDenys Vlasenko <vda.linux@googlemail.com>2017-07-28 15:28:33 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2017-07-28 15:28:33 +0200
commit619d9b5e6848a72350126ea9c1e413fd133181e3 (patch)
tree1fe4ab734bd3b917ec4e9ef35d2c1e700a850605 /include/shadow_.h
parent46f3f16b587ce781ab43a7b17698e1e565b2acf7 (diff)
downloadbusybox-619d9b5e6848a72350126ea9c1e413fd133181e3.tar.gz
ash: less hackish implementation of evaltreenr()
Defining a function alias with __attribute__ ((alias("evaltree"),__noreturn__)) is not that usual, and clang had a bug which made it misunderstand this construct. Switch to: ALWAYS_INLINE NORETURN evaltreenr() { evaltree(); unreachable(); } Older gcc's do not know unreachable(), on them we pay the price of having a few extra calls to abort(): function old new delta evalsubshell 151 156 +5 evalpipe 357 362 +5 argstr 1141 1144 +3 On newer gcc, code size does not change. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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