link failure: pointer not aligned at _kWhence+0x4 (macOS 14.4)

[quantimnot]

Error

ld: building fixups: pointer not aligned at _kWhence+0x4 from o//blink/blink.a[124](strace.o)

Failing Build Command

./configure && gmake -j

Relevant Source

#ifndef thatispacked
#define thatispacked __attribute__((__packed__))
#endif
struct thatispacked MagicNumber {
  int x;
  const char *s;
};
const struct MagicNumber kWhence[] = {
    {SEEK_SET_LINUX, "SEEK_SET"},  //
    {SEEK_CUR_LINUX, "SEEK_CUR"},  //
    {SEEK_END_LINUX, "SEEK_END"},  //
};

Resolution

Disable packing: CPPFLAGS="-Dthatispacked="

{ ./configure CPPFLAGS="-Dthatispacked=" && gmake -j; } >o/build.stdout 2>o/build.stderr && gmake -j check >o/check.stdout 2>o/check.stderr

PASSED (323 / 323 tests (1 skipped))

Versions

uname -v

Darwin Kernel Version 23.4.0: Wed Feb 21 21:51:37 PST 2024; root:xnu-10063.101.15~2/RELEASE_ARM64_T8112

pkgutil --pkg-info com.apple.pkg.CLTools_Executables

package-id: com.apple.pkg.CLTools_Executables
version: 15.3.0.0.1.1708646388
volume: /
location: /
install-time: 1709746099

"$(xcode-select -p)/usr/bin/cc" -v

Apple clang version 15.0.0 (clang-1500.3.9.4)
Target: arm64-apple-darwin23.4.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

"$(xcode-select -p)/usr/bin/ld" -v

@(#)PROGRAM:ld PROJECT:ld-1053.12
BUILD 19:09:13 Feb 1 2024
configured to support archs: armv6 armv7 armv7s arm64 arm64e arm64_32 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em
will use ld-classic for: armv6 armv7 armv7s arm64_32 i386 armv6m armv7k armv7m armv7em LTO support using: LLVM version 15.0.0 (static support for 29, runtime is 29)
TAPI support using: Apple TAPI version 15.0.0 (tapi-1500.3.2.2)

"$(xcode-select -p)/usr/bin/ld-classic" -v

@(#)PROGRAM:ld-classic PROJECT:ld64-951.9
BUILD 20:36:32 Jan 26 2024
configured to support archs: armv6 armv7 armv7s arm64 arm64e arm64_32 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em
LTO support using: LLVM version 15.0.0 (static support for 29, runtime is 29)
TAPI support using: Apple TAPI version 15.0.0 (tapi-1500.3.2.2)

References

• https://developer.apple.com/documentation/xcode/configuring-your-project-to-use-mergeable-libraries

[espinielli]

This worked for me to compile and pass tests. Thanks!
BUT when I tried to use it as

$ blinkenlights -rt sectorlisp-friendly.bin

it dumped

[chenrui333]

seeing the same issue while building on macos 15, any update on this thread?