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quartus-prime-lite: implement the SOURCE_DATE_EPOCH specification

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For reproducible builds: https://reproducible-builds.org/specs/source-date-epoch

Some programs break with fixed/static clock (or just by the fact that
$LD_PRELOAD is set), so

* make this feature opt-in; activate by setting
  NIXPKGS_QUARTUS_REPRODUCIBLE_BUILD=1
* add a blocklist of programs that are known to misbehave, and
  completely exclude them from the SOURCE_DATE_EPOCH handling

In the future NIXPKGS_QUARTUS_REPRODUCIBLE_BUILD=1 might be the default,
but let's start gently, in case the blocklist is incomplete.
This commit is contained in:
Bjørn Forsman
2024-09-21 13:08:34 +02:00
parent 91c85a1aa9
commit 25ce61d6f2
1 changed files with 25 additions and 1 deletions
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pkgs/applications/editors/quartus-prime/default.nix
+25 -1
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@@ -1,5 +1,5 @@
{ lib, buildFHSEnv, callPackage, makeDesktopItem, runtimeShell
, runCommand, unstick, quartus-prime-lite
, runCommand, unstick, quartus-prime-lite, libfaketime, pkgsi686Linux
, withQuesta ? true
, supportedDevices ? [ "Arria II" "Cyclone V" "Cyclone IV" "Cyclone 10 LP" "MAX II/V" "MAX 10 FPGA" ]
, unwrapped ? callPackage ./quartus.nix { inherit unstick supportedDevices withQuesta; }
@@ -85,15 +85,28 @@ in buildFHSEnv rec {
progs_wrapped=()
for prog in ''${progs_to_wrap[@]}; do
relname="''${prog#"${unwrapped}/"}"
bname="$(basename "$relname")"
wrapped="$out/$relname"
progs_wrapped+=("$wrapped")
mkdir -p "$(dirname "$wrapped")"
echo "#!${runtimeShell}" >> "$wrapped"
NIXPKGS_QUARTUS_THIS_PROG_SUPPORTS_FIXED_CLOCK=1
case "$relname" in
questa_fse/*)
echo "export NIXPKGS_IS_QUESTA_WRAPPER=1" >> "$wrapped"
# Any use of LD_PRELOAD breaks Questa, so disable the
# SOURCE_DATE_EPOCH code path.
NIXPKGS_QUARTUS_THIS_PROG_SUPPORTS_FIXED_CLOCK=0
;;
esac
# SOURCE_DATE_EPOCH blocklist for programs that are known to hang/break
# with fixed/static clock.
case "$bname" in
jtagd|quartus_pgm|quartus)
NIXPKGS_QUARTUS_THIS_PROG_SUPPORTS_FIXED_CLOCK=0
;;
esac
echo "export NIXPKGS_QUARTUS_THIS_PROG_SUPPORTS_FIXED_CLOCK=$NIXPKGS_QUARTUS_THIS_PROG_SUPPORTS_FIXED_CLOCK" >> "$wrapped"
echo "exec $wrapper $prog \"\$@\"" >> "$wrapped"
done
@@ -116,6 +129,17 @@ in buildFHSEnv rec {
if [ "$NIXPKGS_IS_QUESTA_WRAPPER" != 1 ]; then
export LD_PRELOAD=''${LD_PRELOAD:+$LD_PRELOAD:}/usr/lib/libudev.so.0
fi
# Implement the SOURCE_DATE_EPOCH specification for reproducible builds
# (https://reproducible-builds.org/specs/source-date-epoch).
# Require opt-in with NIXPKGS_QUARTUS_REPRODUCIBLE_BUILD=1 for now, in case
# the blocklist is incomplete.
if [ -n "$SOURCE_DATE_EPOCH" ] && [ "$NIXPKGS_QUARTUS_REPRODUCIBLE_BUILD" = 1 ] && [ "$NIXPKGS_QUARTUS_THIS_PROG_SUPPORTS_FIXED_CLOCK" = 1 ]; then
export LD_LIBRARY_PATH="${lib.makeLibraryPath [ libfaketime pkgsi686Linux.libfaketime ]}''${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
export LD_PRELOAD=libfaketime.so.1''${LD_PRELOAD:+:$LD_PRELOAD}
export FAKETIME_FMT="%s"
export FAKETIME="$SOURCE_DATE_EPOCH"
fi
'' + extraProfile;
# Run the wrappers directly, instead of going via bash.