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lib: Clean up how linux and gcc config is specified

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Second attempt of 8929989614589ee3acd070a6409b2b9700c92d65; see that
commit for details.

This reverts commit 0bc275e634.
This commit is contained in:
John Ericson
2021-01-23 10:01:28 -05:00
parent 2bc16b381e
commit 9c213398b3
38 changed files with 440 additions and 434 deletions
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pkgs/build-support/cc-wrapper/default.nix
+14 -14
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@@ -402,32 +402,32 @@ stdenv.mkDerivation {
# Always add -march based on cpu in triple. Sometimes there is a
# discrepency (x86_64 vs. x86-64), so we provide an "arch" arg in
# that case.
+ optionalString ((targetPlatform ? platform.gcc.arch) &&
isGccArchSupported targetPlatform.platform.gcc.arch) ''
echo "-march=${targetPlatform.platform.gcc.arch}" >> $out/nix-support/cc-cflags-before
+ optionalString ((targetPlatform ? gcc.arch) &&
isGccArchSupported targetPlatform.gcc.arch) ''
echo "-march=${targetPlatform.gcc.arch}" >> $out/nix-support/cc-cflags-before
''
# -mcpu is not very useful. You should use mtune and march
# instead. It’s provided here for backwards compatibility.
+ optionalString (targetPlatform ? platform.gcc.cpu) ''
echo "-mcpu=${targetPlatform.platform.gcc.cpu}" >> $out/nix-support/cc-cflags-before
+ optionalString (targetPlatform ? gcc.cpu) ''
echo "-mcpu=${targetPlatform.gcc.cpu}" >> $out/nix-support/cc-cflags-before
''
# -mfloat-abi only matters on arm32 but we set it here
# unconditionally just in case. If the abi specifically sets hard
# vs. soft floats we use it here.
+ optionalString (targetPlatform ? platform.gcc.float-abi) ''
echo "-mfloat-abi=${targetPlatform.platform.gcc.float-abi}" >> $out/nix-support/cc-cflags-before
+ optionalString (targetPlatform ? gcc.float-abi) ''
echo "-mfloat-abi=${targetPlatform.gcc.float-abi}" >> $out/nix-support/cc-cflags-before
''
+ optionalString (targetPlatform ? platform.gcc.fpu) ''
echo "-mfpu=${targetPlatform.platform.gcc.fpu}" >> $out/nix-support/cc-cflags-before
+ optionalString (targetPlatform ? gcc.fpu) ''
echo "-mfpu=${targetPlatform.gcc.fpu}" >> $out/nix-support/cc-cflags-before
''
+ optionalString (targetPlatform ? platform.gcc.mode) ''
echo "-mmode=${targetPlatform.platform.gcc.mode}" >> $out/nix-support/cc-cflags-before
+ optionalString (targetPlatform ? gcc.mode) ''
echo "-mmode=${targetPlatform.gcc.mode}" >> $out/nix-support/cc-cflags-before
''
+ optionalString (targetPlatform ? platform.gcc.tune &&
isGccArchSupported targetPlatform.platform.gcc.tune) ''
echo "-mtune=${targetPlatform.platform.gcc.tune}" >> $out/nix-support/cc-cflags-before
+ optionalString (targetPlatform ? gcc.tune &&
isGccArchSupported targetPlatform.gcc.tune) ''
echo "-mtune=${targetPlatform.gcc.tune}" >> $out/nix-support/cc-cflags-before
''
# TODO: categorize these and figure out a better place for them