[Buildroot] [PATCH 2/6] tpm2-tss: allow building without stack smashing protection (SSP)

[Peter Korsgaard]

>>>>> "Carlos" == Carlos Santos <casantos at datacom.ind.br> writes:

 > Disable SSP if the toolchain does not support it. This must be done
 > explicitly because configure.ac passes -fstack-protector-all to the
 > compiler but doesn't contain a link test, so it doesn't detect when
 > libssp is missing.

 > Fixes:
 >   http://autobuild.buildroot.net/results/f98749311c5a4338f5fbd6d29c9ca29ac6c24abd
 >   http://autobuild.buildroot.net/results/4112a001038eb5e04c67c7b5c79280813d196911
 >   http://autobuild.buildroot.net/results/451fcf7e36ea8774967b84279abb89ffb0fd6923
 >   http://autobuild.buildroot.net/results/8e1181836249105be28f04a59cf6d31afcea91d7
 >   http://autobuild.buildroot.net/results/49151df111ad3d03c70551e4516c3d3b36e12d70
 >   http://autobuild.buildroot.net/results/42d625c579a8a16fb0c0a3df441ea186c3d52b9a
 >   http://autobuild.buildroot.net/results/b0af881e080c4fcc6094489c037ee853fdf42869
 >   http://autobuild.buildroot.net/results/0909d94af3f9589dd6b8897e2501c05b421262c4
 >   http://autobuild.buildroot.net/results/2fd0ee29c0b28cb1fee1b43433ab8373f49ca397
 >   http://autobuild.buildroot.net/results/3fa19441fd2594b064c8ff759df8849705100a65
 >   http://autobuild.buildroot.net/results/8675d2aa8f1e8e568a42bc0dbfae8f3721e86796
 >   http://autobuild.buildroot.net/results/786de50b53fa9a325c92a5d48f3928082eff0045
 >   http://autobuild.buildroot.net/results/a575b340f7cc562c1b87eb31d4304131b52698a7
 >   http://autobuild.buildroot.net/results/0b1d50d9e266d889d7e848275ebfbce45ccb419d
 >   http://autobuild.buildroot.net/results/d632b0e1efbb5e133dfb6595554badea9e31c492
 >   http://autobuild.buildroot.net/results/0c95459bfa82048d7e99661cf5f2d6d393179090
 >   http://autobuild.buildroot.net/results/bd494dc69fb0da46065f10a3cd8a4cab0bcbcc9b
 >   http://autobuild.buildroot.net/results/b397e44cd17b3d576cc55f02d5463e9c14743907
 >   http://autobuild.buildroot.net/results/40ed7a3b519c18102df515b5c4b993ed9a488236
 >   http://autobuild.buildroot.net/results/e5fc04c2ded86e03eb174a89845a50f52e407d48
 >   http://autobuild.buildroot.net/results/95a7c14da225d9e42545ee7a155f461303c62aa6
 >   http://autobuild.buildroot.net/results/25ebda7a13afa4790ad28018f42c46a795f3c284
 >   http://autobuild.buildroot.net/results/1bc081b78c625f13327c733fc734e36fe28ecc2a
 >   http://autobuild.buildroot.net/results/273108e2798155464109b9fb4d16884e7d0f9ab3
 >   http://autobuild.buildroot.net/results/f677d340cd42ea7242d4102fbb5fa6091a05e8ef
 >   http://autobuild.buildroot.net/results/ae15b625260801b494bbfa541ef86edcdbaedfe0

 > Signed-off-by: Carlos Santos <casantos at datacom.ind.br>
 > ---
 >  package/tpm2-tss/tpm2-tss.mk | 4 ++++
 >  1 file changed, 4 insertions(+)

 > diff --git a/package/tpm2-tss/tpm2-tss.mk b/package/tpm2-tss/tpm2-tss.mk
 > index f5169a2770..6a46868b22 100644
 > --- a/package/tpm2-tss/tpm2-tss.mk
 > +++ b/package/tpm2-tss/tpm2-tss.mk
 > @@ -11,4 +11,8 @@ TPM2_TSS_LICENSE_FILES = LICENSE
 >  TPM2_TSS_INSTALL_STAGING = YES
 >  TPM2_TSS_DEPENDENCIES = liburiparser host-pkgconf
 
 > +# configure.ac doesn't contain a link test, so it doesn't detect when 
 > +# libssp is missing.
 > +TPM2_TSS_CONF_ENV = ax_cv_check_cflags___________Wall__Werror_______fstack_protector_all=$(if $(BR2_TOOLCHAIN_HAS_SSP),yes,no)

Funky variable name ;)

Does this mean that tpm2-tss is built with -Wall -Werror? If so, that
unfortunately tends to cause compilations as even minor issues are
treated as errors.

Committed, thanks.

-- 
Bye, Peter Korsgaard