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| author | Bernardo Meurer <bernardo@meurer.org> | 2021-07-11 21:55:40 -0700 |
|---|---|---|
| committer | Bernardo Meurer <bernardo@meurer.org> | 2021-07-12 10:39:51 -0700 |
| commit | 89deec56234511babe7478a44f684afcec83b394 (patch) | |
| tree | 32c96ac94f4611c6437b972acd32ffb2c9196040 /pkgs/os-specific/linux/kernel | |
| parent | 61ab7e84de28ec85dc026a88301f7aa63d2aa1d7 (diff) | |
buildLinux: apply hostPlatform.linux-kernel.makeFlags to generate-config.pl
This enforces that the configuration generated will obey any/all flags set in the platform/stdenv configuration. This is crucial, for example, if you'd like to build a kernel using clang. Without this patch, anything you set in `stdenv.hostPlatform.linux-kernel.makeFlags` is wholly ignored during config generation, causing (for example) any changes in the desired toolchain (e.g. `LLVM`, `LLVM_IAS`) to not be reflected in the generated config, and for the subsequent build to fail.
Diffstat (limited to 'pkgs/os-specific/linux/kernel')
| -rw-r--r-- | pkgs/os-specific/linux/kernel/generate-config.pl | 3 | ||||
| -rw-r--r-- | pkgs/os-specific/linux/kernel/generic.nix | 8 |
2 files changed, 8 insertions, 3 deletions
diff --git a/pkgs/os-specific/linux/kernel/generate-config.pl b/pkgs/os-specific/linux/kernel/generate-config.pl index 82e1cb66e2be4..df807188f14f9 100644 --- a/pkgs/os-specific/linux/kernel/generate-config.pl +++ b/pkgs/os-specific/linux/kernel/generate-config.pl @@ -19,6 +19,7 @@ my $autoModules = $ENV{'AUTO_MODULES'}; my $preferBuiltin = $ENV{'PREFER_BUILTIN'}; my $ignoreConfigErrors = $ENV{'ignoreConfigErrors'}; my $buildRoot = $ENV{'BUILD_ROOT'}; +my $makeFlags = $ENV{'MAKE_FLAGS'}; $SIG{PIPE} = 'IGNORE'; # Read the answers. @@ -40,7 +41,7 @@ close ANSWERS; sub runConfig { # Run `make config'. - my $pid = open2(\*IN, \*OUT, "make -C $ENV{SRC} O=$buildRoot config SHELL=bash ARCH=$ENV{ARCH} CC=$ENV{CC} HOSTCC=$ENV{HOSTCC} HOSTCXX=$ENV{HOSTCXX}"); + my $pid = open2(\*IN, \*OUT, "make -C $ENV{SRC} O=$buildRoot config SHELL=bash ARCH=$ENV{ARCH} CC=$ENV{CC} HOSTCC=$ENV{HOSTCC} HOSTCXX=$ENV{HOSTCXX} $makeFlags"); # Parse the output, look for questions and then send an # appropriate answer. diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix index b35c84513e69e..f208da7f30ec7 100644 --- a/pkgs/os-specific/linux/kernel/generic.nix +++ b/pkgs/os-specific/linux/kernel/generic.nix @@ -116,6 +116,8 @@ let # e.g. "bzImage" kernelTarget = stdenv.hostPlatform.linux-kernel.target; + makeFlags = lib.optionals (stdenv.hostPlatform.linux-kernel ? makeFlags) stdenv.hostPlatform.linux-kernel.makeFlags; + prePatch = kernel.prePatch + '' # Patch kconfig to print "###" after every question so that # generate-config.pl from the generic builder can answer them. @@ -137,13 +139,15 @@ let make -C . O="$buildRoot" $kernelBaseConfig \ ARCH=$kernelArch \ HOSTCC=$HOSTCC HOSTCXX=$HOSTCXX HOSTAR=$HOSTAR HOSTLD=$HOSTLD \ - CC=$CC OBJCOPY=$OBJCOPY OBJDUMP=$OBJDUMP READELF=$READELF + CC=$CC OBJCOPY=$OBJCOPY OBJDUMP=$OBJDUMP READELF=$READELF \ + $makeFlags # Create the config file. echo "generating kernel configuration..." ln -s "$kernelConfigPath" "$buildRoot/kernel-config" DEBUG=1 ARCH=$kernelArch KERNEL_CONFIG="$buildRoot/kernel-config" AUTO_MODULES=$autoModules \ - PREFER_BUILTIN=$preferBuiltin BUILD_ROOT="$buildRoot" SRC=. perl -w $generateConfig + PREFER_BUILTIN=$preferBuiltin BUILD_ROOT="$buildRoot" SRC=. MAKE_FLAGS="$makeFlags" \ + perl -w $generateConfig ''; installPhase = "mv $buildRoot/.config $out"; |