dev-lang/zig-bin: Backport fix for musl 1.2.4

Signed-off-by: Violet Purcell <vimproved@inventati.org>
Closes: https://github.com/gentoo/gentoo/pull/31791
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 223 insertions, 1 deletions

diff --git a/dev-lang/zig-bin/files/zig-0.10.1-musl-1.2.4-lfs64.patch b/dev-lang/zig-bin/files/zig-0.10.1-musl-1.2.4-lfs64.patch
new file mode 100644
index 000000000000..05a550a7920e
--- /dev/null
+++ b/dev-lang/zig-bin/files/zig-0.10.1-musl-1.2.4-lfs64.patch
@@ -0,0 +1,220 @@
+From https://github.com/ziglang/zig/commit/b20ccff515364cdb8f3e733cc950e53ab77656db Mon Sep 17 00:00:00 2001
+From: Andrew Kelley <andrew@ziglang.org>
+Date: Mon, 19 Jun 2023 15:17:01 -0700
+Subject: [PATCH] std.os: update logic for 64-bit symbol choice
+
+musl v1.2.4 dropped the "64"-suffixed aliases for legacy "LFS64" ("large
+file support") interfaces, so this commit changes the corresponding Zig
+logic to call the correct names.
+--- a/lib/std/os.zig
++++ b/lib/std/os.zig
+@@ -890,10 +890,7 @@ pub fn pread(fd: fd_t, buf: []u8, offset: u64) PReadError!usize {
+     };
+     const adjusted_len = @min(max_count, buf.len);
+ 
+-    const pread_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.pread64
+-    else
+-        system.pread;
++    const pread_sym = if (lfs64_abi) system.pread64 else system.pread;
+ 
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+     while (true) {
+@@ -966,10 +963,7 @@ pub fn ftruncate(fd: fd_t, length: u64) TruncateError!void {
+     }
+ 
+     while (true) {
+-        const ftruncate_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-            system.ftruncate64
+-        else
+-            system.ftruncate;
++        const ftruncate_sym = if (lfs64_abi) system.ftruncate64 else system.ftruncate;
+ 
+         const ilen = @bitCast(i64, length); // the OS treats this as unsigned
+         switch (errno(ftruncate_sym(fd, ilen))) {
+@@ -1034,10 +1028,7 @@ pub fn preadv(fd: fd_t, iov: []const iovec, offset: u64) PReadError!usize {
+ 
+     const iov_count = math.cast(u31, iov.len) orelse math.maxInt(u31);
+ 
+-    const preadv_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.preadv64
+-    else
+-        system.preadv;
++    const preadv_sym = if (lfs64_abi) system.preadv64 else system.preadv;
+ 
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+     while (true) {
+@@ -1311,10 +1302,7 @@ pub fn pwrite(fd: fd_t, bytes: []const u8, offset: u64) PWriteError!usize {
+     };
+     const adjusted_len = @min(max_count, bytes.len);
+ 
+-    const pwrite_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.pwrite64
+-    else
+-        system.pwrite;
++    const pwrite_sym = if (lfs64_abi) system.pwrite64 else system.pwrite;
+ 
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+     while (true) {
+@@ -1400,10 +1388,7 @@ pub fn pwritev(fd: fd_t, iov: []const iovec_const, offset: u64) PWriteError!usiz
+         }
+     }
+ 
+-    const pwritev_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.pwritev64
+-    else
+-        system.pwritev;
++    const pwritev_sym = if (lfs64_abi) system.pwritev64 else system.pwritev;
+ 
+     const iov_count = if (iov.len > IOV_MAX) IOV_MAX else @intCast(u31, iov.len);
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+@@ -1514,10 +1499,7 @@ pub fn openZ(file_path: [*:0]const u8, flags: u32, perm: mode_t) OpenError!fd_t
+         return open(mem.sliceTo(file_path, 0), flags, perm);
+     }
+ 
+-    const open_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.open64
+-    else
+-        system.open;
++    const open_sym = if (lfs64_abi) system.open64 else system.open;
+ 
+     while (true) {
+         const rc = open_sym(file_path, flags, perm);
+@@ -1730,10 +1712,7 @@ pub fn openatZ(dir_fd: fd_t, file_path: [*:0]const u8, flags: u32, mode: mode_t)
+         return openat(dir_fd, mem.sliceTo(file_path, 0), flags, mode);
+     }
+ 
+-    const openat_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.openat64
+-    else
+-        system.openat;
++    const openat_sym = if (lfs64_abi) system.openat64 else system.openat;
+ 
+     while (true) {
+         const rc = openat_sym(dir_fd, file_path, flags, mode);
+@@ -4117,10 +4096,7 @@ pub fn fstat(fd: fd_t) FStatError!Stat {
+         @compileError("fstat is not yet implemented on Windows");
+     }
+ 
+-    const fstat_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.fstat64
+-    else
+-        system.fstat;
++    const fstat_sym = if (lfs64_abi) system.fstat64 else system.fstat;
+ 
+     var stat = mem.zeroes(Stat);
+     switch (errno(fstat_sym(fd, &stat))) {
+@@ -4176,10 +4152,7 @@ pub fn fstatatZ(dirfd: fd_t, pathname: [*:0]const u8, flags: u32) FStatAtError!S
+         return fstatatWasi(dirfd, mem.sliceTo(pathname), flags);
+     }
+ 
+-    const fstatat_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.fstatat64
+-    else
+-        system.fstatat;
++    const fstatat_sym = if (lfs64_abi) system.fstatat64 else system.fstatat;
+ 
+     var stat = mem.zeroes(Stat);
+     switch (errno(fstatat_sym(dirfd, pathname, &stat, flags))) {
+@@ -4416,10 +4389,7 @@ pub fn mmap(
+     fd: fd_t,
+     offset: u64,
+ ) MMapError![]align(mem.page_size) u8 {
+-    const mmap_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.mmap64
+-    else
+-        system.mmap;
++    const mmap_sym = if (lfs64_abi) system.mmap64 else system.mmap;
+ 
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+     const rc = mmap_sym(ptr, length, prot, flags, fd, ioffset);
+@@ -4823,10 +4793,7 @@ pub fn lseek_SET(fd: fd_t, offset: u64) SeekError!void {
+         }
+     }
+ 
+-    const lseek_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.lseek64
+-    else
+-        system.lseek;
++    const lseek_sym = if (lfs64_abi) system.lseek64 else system.lseek;
+ 
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+     switch (errno(lseek_sym(fd, ioffset, SEEK.SET))) {
+@@ -4870,10 +4837,7 @@ pub fn lseek_CUR(fd: fd_t, offset: i64) SeekError!void {
+             else => |err| return unexpectedErrno(err),
+         }
+     }
+-    const lseek_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.lseek64
+-    else
+-        system.lseek;
++    const lseek_sym = if (lfs64_abi) system.lseek64 else system.lseek;
+ 
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+     switch (errno(lseek_sym(fd, ioffset, SEEK.CUR))) {
+@@ -4917,10 +4881,7 @@ pub fn lseek_END(fd: fd_t, offset: i64) SeekError!void {
+             else => |err| return unexpectedErrno(err),
+         }
+     }
+-    const lseek_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.lseek64
+-    else
+-        system.lseek;
++    const lseek_sym = if (lfs64_abi) system.lseek64 else system.lseek;
+ 
+     const ioffset = @bitCast(i64, offset); // the OS treats this as unsigned
+     switch (errno(lseek_sym(fd, ioffset, SEEK.END))) {
+@@ -4964,10 +4925,7 @@ pub fn lseek_CUR_get(fd: fd_t) SeekError!u64 {
+             else => |err| return unexpectedErrno(err),
+         }
+     }
+-    const lseek_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.lseek64
+-    else
+-        system.lseek;
++    const lseek_sym = if (lfs64_abi) system.lseek64 else system.lseek;
+ 
+     const rc = lseek_sym(fd, 0, SEEK.CUR);
+     switch (errno(rc)) {
+@@ -6169,10 +6127,7 @@ pub fn sendfile(
+             // TODO we should not need this cast; improve return type of @min
+             const adjusted_count = @intCast(usize, adjusted_count_tmp);
+ 
+-            const sendfile_sym = if (builtin.link_libc)
+-                system.sendfile64
+-            else
+-                system.sendfile;
++            const sendfile_sym = if (lfs64_abi) system.sendfile64 else system.sendfile;
+ 
+             while (true) {
+                 var offset: off_t = @bitCast(off_t, in_offset);
+@@ -7050,10 +7005,7 @@ pub fn prctl(option: PR, args: anytype) PrctlError!u31 {
+ pub const GetrlimitError = UnexpectedError;
+ 
+ pub fn getrlimit(resource: rlimit_resource) GetrlimitError!rlimit {
+-    const getrlimit_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.getrlimit64
+-    else
+-        system.getrlimit;
++    const getrlimit_sym = if (lfs64_abi) system.getrlimit64 else system.getrlimit;
+ 
+     var limits: rlimit = undefined;
+     switch (errno(getrlimit_sym(resource, &limits))) {
+@@ -7067,10 +7019,7 @@ pub fn getrlimit(resource: rlimit_resource) GetrlimitError!rlimit {
+ pub const SetrlimitError = error{ PermissionDenied, LimitTooBig } || UnexpectedError;
+ 
+ pub fn setrlimit(resource: rlimit_resource, limits: rlimit) SetrlimitError!void {
+-    const setrlimit_sym = if (builtin.os.tag == .linux and builtin.link_libc)
+-        system.setrlimit64
+-    else
+-        system.setrlimit;
++    const setrlimit_sym = if (lfs64_abi) system.setrlimit64 else system.setrlimit;
+ 
+     switch (errno(setrlimit_sym(resource, &limits))) {
+         .SUCCESS => return,
+@@ -7339,3 +7288,5 @@ pub fn ptrace(request: u32, pid: pid_t, addr: usize, signal: usize) PtraceError!
+         },
+     };
+ }
++
++const lfs64_abi = builtin.os.tag == .linux and builtin.link_libc and builtin.abi.isGnu();
diff --git a/dev-lang/zig-bin/zig-bin-0.10.1-r2.ebuild b/dev-lang/zig-bin/zig-bin-0.10.1-r3.ebuild
index 4674b943f38f..b5dcb9e26682 100644
--- a/dev-lang/zig-bin/zig-bin-0.10.1-r2.ebuild
+++ b/dev-lang/zig-bin/zig-bin-0.10.1-r3.ebuild
@@ -34,7 +34,9 @@ IDEPEND="app-eselect/eselect-zig"
 # because they can use compile-time mechanics (and it is easier for distributions to patch them)
 # Here we use this feature for fixing programs that use standard library
 # Note: Zig build system is also part of standard library, so we can fix it too
-#PATCHES=( )
+PATCHES=(
+	"${FILESDIR}/zig-0.10.1-musl-1.2.4-lfs64.patch"
+)
 
 QA_PREBUILT="opt/${P}/zig"