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configure: Unnest detection of -z,relro and -z,now

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There is nothing about these options that is related to PIE.
Use them unconditionally.

Backports commit e6cbd75158ea274ab98c13c9b73d2bc1d90aa50d from qemu
This commit is contained in:
Richard Henderson 2020-04-30 07:06:33 -04:00 committed by Lioncash
parent e546e24b83
commit 598083421b
1 changed files with 6 additions and 3 deletions
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9
qemu/configure vendored
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@ -870,9 +870,6 @@ if test "$pie" != "no" ; then
QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
LDFLAGS="-pie $LDFLAGS"
pie="yes"
if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
LDFLAGS="-Wl,-z,relro -Wl,-z,now $LDFLAGS"
fi
else
if test "$pie" = "yes"; then
error_exit "PIE not available due to missing toolchain support"
@ -888,6 +885,12 @@ if test "$pie" != "no" ; then
fi
fi
# Detect support for PT_GNU_RELRO + DT_BIND_NOW.
# The combination is known as "full relro", because .got.plt is read-only too.
if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
fi
##########################################
# __sync_fetch_and_and requires at least -march=i486. Many toolchains
# use i686 as default anyway, but for those that don't, an explicit