Add option for paranoid unsafe path checking

This commit adds a Config.in option to the "Build options" submenu to
enable paranoid checking of unsafe paths. This mechanism is added as
an option so that when we'll enable it in the autobuilders, people
trying to reproduce the build failures will be able to do so by just
downloading the configuration file. If instead we were leaving this
feature as an environment variable, everyone would have to remember to
pass this environment variable to reproduce build issues. And certain
build issues triggered by paranoid unsafe patch checking may not be
visible in the build output, for example when they happen during the
execution of configure scripts.

Since this option is fairly advanced, a new submenu inside "Build
options" is created, for Advanced options.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Romain Naour <romain.naour@openwide.fr>
Tested-by: Romain Naour <romain.naour@openwide.fr>
This commit is contained in:
Thomas Petazzoni 2014-12-10 23:53:57 +01:00
parent 2621ff3bed
commit 4ac8f78d37
2 changed files with 24 additions and 0 deletions

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@ -569,6 +569,26 @@ config BR2_GLOBAL_PATCH_DIR
Otherwise, if the directory <global-patch-dir>/<packagename> exists,
then all *.patch files in the directory will be applied.
menu "Advanced"
config BR2_COMPILER_PARANOID_UNSAFE_PATH
bool "paranoid check of library/header paths"
help
By default, when this option is disabled, when the Buildroot
cross-compiler will encounter an unsafe library or header
path (such as /usr/include, or /usr/lib), the compiler will
display a warning.
By enabling this option, this warning is turned into an
error, which will completely abort the build when such
unsafe paths are encountered.
Note that this mechanism is available for both the internal
toolchain (through gcc and binutils patches) and external
toolchain backends (through the external toolchain wrapper).
endmenu
endmenu
source "toolchain/Config.in"

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@ -398,6 +398,10 @@ else
SHARED_STATIC_LIBS_OPTS = --enable-static --enable-shared
endif
ifeq ($(BR2_COMPILER_PARANOID_UNSAFE_PATH),y)
export BR_COMPILER_PARANOID_UNSAFE_PATH=enabled
endif
include package/pkg-download.mk
include package/pkg-autotools.mk
include package/pkg-cmake.mk