diff options
| author | Marcel Patzlaff <m.patzlaff@pilz.de> | 2020-04-24 14:09:23 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2020-04-27 12:30:45 +0200 |
| commit | 25751e796e83a75e0d443f96694e539ffbf4687a (patch) | |
| tree | bcbe9153a360d9786b1dc6bcb1f5cf7c69e77f3e /Rules.mak | |
| parent | d987468fdcfe2091bd5d5481ea3a1ec24b12bca7 (diff) | |
Rules.mak: Fix check_as for recent binutils versions
As described in https://bugs.busybox.net/show_bug.cgi?id=12801 the
check for '-Wa,--noexecstack' is not working since binutils 2.31.x.
This fix adapts the approach already taken with check_ld and uses a
temporary file. Further, check_gcc is also adapted to avoid future
problems.
Signed-off-by: Marcel Patzlaff <m.patzlaff@pilz.de>
Diffstat (limited to 'Rules.mak')
| -rw-r--r-- | Rules.mak | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -189,11 +189,13 @@ endif # A nifty macro to make testing gcc features easier check_gcc=$(shell \ - if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \ - then echo "$(1)"; else echo "$(2)"; fi) + tf="/tmp/cgccucl$$$$.o"; \ + if $(CC) $(1) -S -o $$tf -xc /dev/null > /dev/null 2>&1; \ + then echo "$(1)"; else echo "$(2)"; fi; rm -f $$tf ) check_as=$(shell \ - if $(CC) -Wa,$(1) -Wa,-Z -c -o /dev/null -xassembler /dev/null > /dev/null 2>&1; \ - then echo "-Wa,$(1)"; fi) + tf="/tmp/casucl$$$$.o"; \ + if $(CC) -Wa,$(1) -Wa,-Z -c -o $$tf -xassembler /dev/null > /dev/null 2>&1; \ + then echo "-Wa,$(1)"; fi; rm -f $$tf ) check_ld=$(shell \ tf="/tmp/clducl$$$$.c"; echo "int _start(){return 0;}int main(){return 0;}" >$$tf; \ if $(CC) $(LDFLAG-fuse-ld) $(CFLAG_-Wl--no-warn-mismatch) -Wl,$(1) $(CFLAG_-nostdlib) -o /dev/null $$tf > /dev/null 2>&1; \ |