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da1ea54ad8
Commit msg of 767e0880d4
> gobject-introspection: replace prelink-rtld with objdump -p
>
> g-i internally processes the output with regexes, and seems
> happy with what objdump is printing. It only needs to resolve
> the library name as passed to the linker to the library file name.
> Also recursive resolution (that ldd is doing and objdump is not)
> is not necessary.
Additional context section of https://github.com/NixOS/nixpkgs/issues/183071
> prelink is dropped by openembedded, support for prelink is removed from glibc,
> and itself is effectively abandoned by the upstream (yocto project).
> I think we may as well drop it rather than fix it.
> However gobject-introspection now relies on it as a runtime linker for use in cross compilation, we have to find an alternative.
58 lines
2.4 KiB
Nix
58 lines
2.4 KiB
Nix
{ lib
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, stdenv
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, buildPackages
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, targetPackages
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, gobject-introspection-unwrapped
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, ...
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}@_args:
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# to build, run
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# `nix build ".#pkgsCross.aarch64-multiplatform.buildPackages.gobject-introspection"`
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let
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# ensure that `.override` works when gobject-introspection == gobject-introspection-wrapped
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args = builtins.removeAttrs _args [ "buildPackages" "targetPackages" "gobject-introspection-unwrapped" ];
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# passing this stdenv to `targetPackages...` breaks due to splicing not working in `.override``
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argsForTarget = builtins.removeAttrs args [ "stdenv" ];
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in
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(gobject-introspection-unwrapped.override args).overrideAttrs (previousAttrs: {
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pname = "gobject-introspection-wrapped";
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postFixup = (previousAttrs.postFixup or "") + ''
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mv $dev/bin/g-ir-compiler $dev/bin/.g-ir-compiler-wrapped
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mv $dev/bin/g-ir-scanner $dev/bin/.g-ir-scanner-wrapped
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(
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export bash="${buildPackages.bash}"
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export emulator=${lib.escapeShellArg (stdenv.targetPlatform.emulator buildPackages)}
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export buildobjdump="${buildPackages.stdenv.cc.bintools}/bin/objdump"
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export targetgir="${lib.getDev (targetPackages.gobject-introspection-unwrapped.override argsForTarget)}"
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substituteAll "${./wrappers/g-ir-compiler.sh}" "$dev/bin/g-ir-compiler"
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substituteAll "${./wrappers/g-ir-scanner.sh}" "$dev/bin/g-ir-scanner"
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substituteAll "${./wrappers/g-ir-scanner-lddwrapper.sh}" "$dev/bin/g-ir-scanner-lddwrapper"
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chmod +x "$dev/bin/g-ir-compiler"
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chmod +x "$dev/bin/g-ir-scanner"
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chmod +x "$dev/bin/g-ir-scanner-lddwrapper"
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)
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''
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# when cross-compiling and using the wrapper then when a package looks up the g_ir_X
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# variable with pkg-config they'll get the host version which can't be run
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# override the variable to use the absolute path to g_ir_X in PATH which can be run
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+ ''
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cat >> $dev/nix-support/setup-hook <<-'EOF'
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override-pkg-config-gir-variables() {
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PKG_CONFIG_GOBJECT_INTROSPECTION_1_0_G_IR_SCANNER="$(type -p g-ir-scanner)"
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PKG_CONFIG_GOBJECT_INTROSPECTION_1_0_G_IR_COMPILER="$(type -p g-ir-compiler)"
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PKG_CONFIG_GOBJECT_INTROSPECTION_1_0_G_IR_GENERATE="$(type -p g-ir-generate)"
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export PKG_CONFIG_GOBJECT_INTROSPECTION_1_0_G_IR_SCANNER
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export PKG_CONFIG_GOBJECT_INTROSPECTION_1_0_G_IR_COMPILER
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export PKG_CONFIG_GOBJECT_INTROSPECTION_1_0_G_IR_GENERATE
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}
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preConfigureHooks+=(override-pkg-config-gir-variables)
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EOF
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'';
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})
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