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From: bugzilla@busybox.net
To: buildroot@uclibc.org
Subject: [Buildroot] [Bug 15709] New: Building BR2_PACKAGE_LIBOPENSSL_BIN=y broken with defconfig bootlin-armv7m-uclibc
Date: Tue, 25 Jul 2023 18:41:38 +0000	[thread overview]
Message-ID: <bug-15709-163@https.bugs.busybox.net/> (raw)

https://bugs.busybox.net/show_bug.cgi?id=15709

            Bug ID: 15709
           Summary: Building BR2_PACKAGE_LIBOPENSSL_BIN=y broken with
                    defconfig bootlin-armv7m-uclibc
           Product: buildroot
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: bernd@kuhls.net
                CC: buildroot@uclibc.org
  Target Milestone: ---

Created attachment 9628
  --> https://bugs.busybox.net/attachment.cgi?id=9628&action=edit
defconfig

/home/bernd/buildroot/br4/output/per-package/libopenssl/host/opt/ext-toolchain/arm-buildroot-uclinux-uclibcgnueabi/bin/ld.real:
./libcrypto.a(libcrypto-lib-threads_pthread.o): in function `CRYPTO_atomic_or':
threads_pthread.c:(.text+0xf6): undefined reference to `__atomic_is_lock_free'
/home/bernd/buildroot/br4/output/per-package/libopenssl/host/opt/ext-toolchain/arm-buildroot-uclinux-uclibcgnueabi/bin/ld.real:
threads_pthread.c:(.text+0x106): undefined reference to `__atomic_fetch_or_8'
/home/bernd/buildroot/br4/output/per-package/libopenssl/host/opt/ext-toolchain/arm-buildroot-uclinux-uclibcgnueabi/bin/ld.real:
./libcrypto.a(libcrypto-lib-threads_pthread.o): in function
`CRYPTO_atomic_load':
threads_pthread.c:(.text+0x158): undefined reference to `__atomic_is_lock_free'
/home/bernd/buildroot/br4/output/per-package/libopenssl/host/opt/ext-toolchain/arm-buildroot-uclinux-uclibcgnueabi/bin/ld.real:
threads_pthread.c:(.text+0x162): undefined reference to `__atomic_load_8'

The toolchain contains libatomic
$ find
output/per-package/libopenssl/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/
| grep atomic
output/per-package/libopenssl/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/lib/libatomic.la
output/per-package/libopenssl/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/lib/libatomic.a

Adding -latomic to the openssl configure script fixes the build error.

BR2_TOOLCHAIN_HAS_LIBATOMIC is not enabled:

$ grep ATOMIC .config
BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS=y
BR2_TOOLCHAIN_HAS_ATOMIC=y
BR2_PACKAGE_PULSEAUDIO_HAS_ATOMIC=y
BR2_PACKAGE_LIBATOMIC_OPS_ARCH_SUPPORTS=y
# BR2_PACKAGE_LIBATOMIC_OPS is not set

The reason why buildroot does not enable BR2_TOOLCHAIN_HAS_LIBATOMIC is the
binfmt used:

$ grep BINFMT .config
BR2_BINFMT_FLAT=y
BR2_BINFMT_FLAT_ONE=y
# BR2_BINFMT_FLAT_SEP_DATA is not set

which leads to BR2_TOOLCHAIN_HAS_LIBATOMIC not being enabled:
https://git.busybox.net/buildroot/tree/toolchain/Config.in#n851

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             reply	other threads:[~2023-07-25 18:41 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-25 18:41 bugzilla [this message]
2023-07-25 18:43 ` [Buildroot] [Bug 15709] Building BR2_PACKAGE_LIBOPENSSL_BIN=y broken with defconfig bootlin-armv7m-uclibc bugzilla
2024-06-15 15:11 ` bugzilla

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