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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2018-01-05 15:38:06 -0200
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2018-03-07 17:39:40 -0300
commit3dc214977beccc95f0df3b90fa4ca2557fe1bdd2 (patch)
tree0fa01dffb98e3e727d6e4672450ede29fbb373fb /ChangeLog
parent4e54d918630ea53e29dd70d3bdffcb00d29ed3d4 (diff)
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Refactor Linux ARCH_FORK implementation
This patch refactors the ARCH_FORK macro and the required architecture specific header to simplify the required architecture definitions to provide the fork syscall semantic and proper document current Linux clone ABI variant. Instead of require the reimplementation of arch-fork.h header, this patch changes the ARCH_FORK to an inline function with clone ABI defined by kernel-features.h define. The generic kernel ABI meant for newer ports is used as default and redefine if the architecture requires. Checked on x86_64-linux-gnu and i686-linux-gnu. Also with a build for all the afected ABIs. * sysdeps/nptl/fork.c (ARCH_FORK): Replace by auch_fork. * sysdeps/unix/sysv/linux/alpha/arch-fork.h: Remove file. * sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/aarch64/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/arm/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/hppa/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/i386/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/ia64/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/m68k/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/microblaze/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/mips/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/nios2/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/s390/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/sh/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/sparc/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/tile/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/arch-fork.h: Likewise. * sysdeps/unix/sysv/linux/arch-fork.h (arch_fork): New function. * sysdeps/unix/sysv/linux/aarch64/kernel-features.h: New file. * sysdeps/unix/sysv/linux/riscv/kernel-features.h: Likewise. * sysdeps/unix/sysv/linux/arm/kernel-features.h (__ASSUME_CLONE_BACKWARDS): Define. * sysdeps/unix/sysv/linux/createthread.c (ARCH_CLONE): Define to __clone2 if __NR_clone2 is defined. * sysdeps/unix/sysv/linux/hppa/kernel-features.h (__ASSUME_CLONE_BACKWARDS): Likewise. * sysdeps/unix/sysv/linux/i386/kernel-features.h (__ASSUME_CLONE_BACKWARDS): Likewise. * sysdeps/unix/sysv/linux/ia64/kernel-features.h (__ASSUME_CLONE2): Likewise. * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_CLONE_BACKWARDS3): Likewise. * sysdeps/unix/sysv/linux/kernel-features.h: Document possible clone variants and the define architecture can use. (__ASSUME_CLONE_DEFAULT): Define as default. * sysdeps/unix/sysv/linux/mips/kernel-features.h (__ASSUME_CLONE_BACKWARDS): Likewise. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h (__ASSUME_CLONE_BACKWARDS): Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h (__ASSUME_CLONE_BACKWARDS2): Likewise.
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+2018-03-07 Adhemerval Zanella <adhemerval.zanella@linaro.org>
+
+ * sysdeps/nptl/fork.c (ARCH_FORK): Replace by auch_fork.
+ * sysdeps/unix/sysv/linux/alpha/arch-fork.h: Remove file.
+ * sysdeps/unix/sysv/linux/riscv/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/aarch64/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/arm/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/hppa/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/i386/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/ia64/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/m68k/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/microblaze/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/mips/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/nios2/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/s390/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/sh/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/sparc/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/tile/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/arch-fork.h: Likewise.
+ * sysdeps/unix/sysv/linux/arch-fork.h (arch_fork): New function.
+ * sysdeps/unix/sysv/linux/aarch64/kernel-features.h: New file.
+ * sysdeps/unix/sysv/linux/riscv/kernel-features.h: Likewise.
+ * sysdeps/unix/sysv/linux/arm/kernel-features.h
+ (__ASSUME_CLONE_BACKWARDS): Define.
+ * sysdeps/unix/sysv/linux/createthread.c (ARCH_CLONE): Define to
+ __clone2 if __NR_clone2 is defined.
+ * sysdeps/unix/sysv/linux/hppa/kernel-features.h
+ (__ASSUME_CLONE_BACKWARDS): Likewise.
+ * sysdeps/unix/sysv/linux/i386/kernel-features.h
+ (__ASSUME_CLONE_BACKWARDS): Likewise.
+ * sysdeps/unix/sysv/linux/ia64/kernel-features.h
+ (__ASSUME_CLONE2): Likewise.
+ * sysdeps/unix/sysv/linux/microblaze/kernel-features.h
+ (__ASSUME_CLONE_BACKWARDS3): Likewise.
+ * sysdeps/unix/sysv/linux/kernel-features.h: Document possible clone
+ variants and the define architecture can use.
+ (__ASSUME_CLONE_DEFAULT): Define as default.
+ * sysdeps/unix/sysv/linux/mips/kernel-features.h
+ (__ASSUME_CLONE_BACKWARDS): Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/kernel-features.h
+ (__ASSUME_CLONE_BACKWARDS): Likewise.
+ * sysdeps/unix/sysv/linux/s390/kernel-features.h
+ (__ASSUME_CLONE_BACKWARDS2): Likewise.
+
2018-03-06 Siddhesh Poyarekar <siddhesh@sourceware.org>
* sysdeps/aarch64/memcmp.S (more16): Fix loop16 branch target.