swift: fix build w/ glibc-2.39

Failing Hydra build: https://hydra.nixos.org/build/249763077/nixlog/12

The problem is that glibc commit
64b1a44183a3094672ed304532bedb9acc707554 marked the `FILE*` argument of a few
functions including `fread` & `ferror` as non-null. The applied patch
("Android: add better nullability checks for nullability annotations added in NDK 26")
is targeted for the Android platform, but fixes said issue as well: the
handle returned from `fopen` is of type `Optional<T>` and the `guard`
expression unwraps that now (and throws an exception if `nil` is
returned). The previous `nil`-check didn't modify the type of `fp`, but
only raised the exception and moved on with `Optional<T>`.

It's a little sad that the patch needs to be applied at so many places,
but I guess that's what you get with language-level package managers 🤷
Also, seems good-enough to me given that it's actually temporary, the
patch is already upstream and will probably be obsolete at one of the
next Swift updates.
This commit is contained in:
Maximilian Bosch 2024-03-02 18:47:01 +01:00
parent 1c003da73c
commit 2dcdf60272
No known key found for this signature in database
7 changed files with 30 additions and 104 deletions

View File

@ -1,6 +1,7 @@
{ lib
, stdenv
, callPackage
, fetchpatch
, pkg-config
, swift
, swiftpm
@ -41,7 +42,11 @@ stdenv.mkDerivation {
patch -p1 -d .build/checkouts/indexstore-db -i ${./patches/indexstore-db-macos-target.patch}
swiftpmMakeMutable swift-tools-support-core
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${./patches/force-unwrap-file-handles.patch}
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${fetchpatch {
url = "https://github.com/apple/swift-tools-support-core/commit/990afca47e75cce136d2f59e464577e68a164035.patch";
hash = "sha256-PLzWsp+syiUBHhEFS8+WyUcSae5p0Lhk7SSRdNvfouE=";
includes = [ "Sources/TSCBasic/FileSystem.swift" ];
}}
# This toggles a section specific to Xcode XCTest, which doesn't work on
# Darwin, where we also use swift-corelibs-xctest.

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@ -54,7 +54,11 @@ stdenv.mkDerivation {
configurePhase = generated.configure + ''
swiftpmMakeMutable swift-tools-support-core
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${./patches/force-unwrap-file-handles.patch}
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${fetchpatch {
url = "https://github.com/apple/swift-tools-support-core/commit/990afca47e75cce136d2f59e464577e68a164035.patch";
hash = "sha256-PLzWsp+syiUBHhEFS8+WyUcSae5p0Lhk7SSRdNvfouE=";
includes = [ "Sources/TSCBasic/FileSystem.swift" ];
}}
'';
# TODO: Tests depend on indexstore-db being provided by an existing Swift

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@ -1,33 +0,0 @@
From 8d9ab4b6ed24a97e8af0cc338a52aacdcf438b8c Mon Sep 17 00:00:00 2001
From: Pavel Sobolev <paveloom@riseup.net>
Date: Tue, 21 Nov 2023 20:53:33 +0300
Subject: [PATCH] Force-unwrap file handles.
---
Sources/TSCBasic/FileSystem.swift | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Sources/TSCBasic/FileSystem.swift b/Sources/TSCBasic/FileSystem.swift
index 3a63bdf..a1f3d9d 100644
--- a/Sources/TSCBasic/FileSystem.swift
+++ b/Sources/TSCBasic/FileSystem.swift
@@ -425,7 +425,7 @@ private class LocalFileSystem: FileSystem {
if fp == nil {
throw FileSystemError(errno: errno, path)
}
- defer { fclose(fp) }
+ defer { fclose(fp!) }
// Read the data one block at a time.
let data = BufferedOutputByteStream()
@@ -455,7 +455,7 @@ private class LocalFileSystem: FileSystem {
if fp == nil {
throw FileSystemError(errno: errno, path)
}
- defer { fclose(fp) }
+ defer { fclose(fp!) }
// Write the data in one chunk.
var contents = bytes.contents
--
2.42.0

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@ -1,5 +1,6 @@
{ lib
, stdenv
, fetchpatch
, callPackage
, swift
, swiftpm
@ -21,7 +22,11 @@ stdenv.mkDerivation {
configurePhase = generated.configure + ''
swiftpmMakeMutable swift-tools-support-core
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${./patches/force-unwrap-file-handles.patch}
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${fetchpatch {
url = "https://github.com/apple/swift-tools-support-core/commit/990afca47e75cce136d2f59e464577e68a164035.patch";
hash = "sha256-PLzWsp+syiUBHhEFS8+WyUcSae5p0Lhk7SSRdNvfouE=";
includes = [ "Sources/TSCBasic/FileSystem.swift" ];
}}
'';
# We only install the swift-format binary, so don't need the other products.

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@ -1,33 +0,0 @@
From 8d9ab4b6ed24a97e8af0cc338a52aacdcf438b8c Mon Sep 17 00:00:00 2001
From: Pavel Sobolev <paveloom@riseup.net>
Date: Tue, 21 Nov 2023 20:53:33 +0300
Subject: [PATCH] Force-unwrap file handles.
---
Sources/TSCBasic/FileSystem.swift | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Sources/TSCBasic/FileSystem.swift b/Sources/TSCBasic/FileSystem.swift
index 3a63bdf..a1f3d9d 100644
--- a/Sources/TSCBasic/FileSystem.swift
+++ b/Sources/TSCBasic/FileSystem.swift
@@ -425,7 +425,7 @@ private class LocalFileSystem: FileSystem {
if fp == nil {
throw FileSystemError(errno: errno, path)
}
- defer { fclose(fp) }
+ defer { fclose(fp!) }
// Read the data one block at a time.
let data = BufferedOutputByteStream()
@@ -455,7 +455,7 @@ private class LocalFileSystem: FileSystem {
if fp == nil {
throw FileSystemError(errno: errno, path)
}
- defer { fclose(fp) }
+ defer { fclose(fp!) }
// Write the data in one chunk.
var contents = bytes.contents
--
2.42.0

View File

@ -1,6 +1,7 @@
{ lib
, stdenv
, callPackage
, fetchpatch
, cmake
, ninja
, git
@ -195,12 +196,22 @@ let
'';
};
# Part of this patch fixes for glibc 2.39: glibc patch 64b1a44183a3094672ed304532bedb9acc707554
# marks the `FILE*` argument to a few functions including `ferror` & `fread` as non-null. However
# the code passes an `Optional<T>` to these functions.
# This patch uses a `guard` which effectively unwraps the type (or throws an exception).
swift-tools-support-core-glibc-fix = fetchpatch {
url = "https://github.com/apple/swift-tools-support-core/commit/990afca47e75cce136d2f59e464577e68a164035.patch";
hash = "sha256-PLzWsp+syiUBHhEFS8+WyUcSae5p0Lhk7SSRdNvfouE=";
includes = [ "Sources/TSCBasic/FileSystem.swift" ];
};
swift-tools-support-core = mkBootstrapDerivation {
name = "swift-tools-support-core";
src = generated.sources.swift-tools-support-core;
patches = [
./patches/force-unwrap-file-handles.patch
swift-tools-support-core-glibc-fix
];
buildInputs = [
@ -389,7 +400,7 @@ in stdenv.mkDerivation (commonAttrs // {
swiftpmMakeMutable swift-tools-support-core
substituteInPlace .build/checkouts/swift-tools-support-core/Sources/TSCTestSupport/XCTestCasePerf.swift \
--replace 'canImport(Darwin)' 'false'
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${./patches/force-unwrap-file-handles.patch}
patch -p1 -d .build/checkouts/swift-tools-support-core -i ${swift-tools-support-core-glibc-fix}
# Prevent a warning about SDK directories we don't have.
swiftpmMakeMutable swift-driver

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@ -1,33 +0,0 @@
From 8d9ab4b6ed24a97e8af0cc338a52aacdcf438b8c Mon Sep 17 00:00:00 2001
From: Pavel Sobolev <paveloom@riseup.net>
Date: Tue, 21 Nov 2023 20:53:33 +0300
Subject: [PATCH] Force-unwrap file handles.
---
Sources/TSCBasic/FileSystem.swift | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Sources/TSCBasic/FileSystem.swift b/Sources/TSCBasic/FileSystem.swift
index 3a63bdf..a1f3d9d 100644
--- a/Sources/TSCBasic/FileSystem.swift
+++ b/Sources/TSCBasic/FileSystem.swift
@@ -425,7 +425,7 @@ private class LocalFileSystem: FileSystem {
if fp == nil {
throw FileSystemError(errno: errno, path)
}
- defer { fclose(fp) }
+ defer { fclose(fp!) }
// Read the data one block at a time.
let data = BufferedOutputByteStream()
@@ -455,7 +455,7 @@ private class LocalFileSystem: FileSystem {
if fp == nil {
throw FileSystemError(errno: errno, path)
}
- defer { fclose(fp) }
+ defer { fclose(fp!) }
// Write the data in one chunk.
var contents = bytes.contents
--
2.42.0