daea71c2e4
Looking at kernel-features.h files, I saw that SPARC was missing full information on when it gained separate socket syscalls. This patch adds such information to the SPARC kernel-features.h. It also corrects what appear to be bugs in the existing code (that would cause syscalls to be assumed to be present when not actually present). Various __ASSUME_* macros, defined by default, were not undefined for 32-bit despite those syscalls only being added for 32-bit in Linux 4.4. Some syscalls were used in the SPARC64 syscalls.list but only added in 4.4; this was harmless before the __NR_* macros were defined at all, but once the macros were defined it means a build with post-4.4 headers would assume the syscalls to be present regardless of --enable-kernel version. Then, various __ASSUME_* macros were previously not defined in cases where they could be defined (this part of the patch is just an optimization, not a bug fix). Note the observation in a comment in the patch that even the latest Linux kernel for SPARC does not have getpeername and getsockname syscalls in the compat syscall table for 32-bit binaries on 64-bit kernels (so glibc can't assume those syscalls to be present for 32-bit at all, although the 32-bit syscall table gained them in 4.4). Tested (compilation only) for SPARC with build-many-glibcs.py. [BZ #23848] * sysdeps/unix/sysv/linux/sparc/kernel-features.h [!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400] (__ASSUME_SENDMSG_SYSCALL): Undefine. [!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400] (__ASSUME_RECVMSG_SYSCALL): Likewise. [!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400] (__ASSUME_SENDTO_SYSCALL): Likewise. [!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400] (__ASSUME_ACCEPT_SYSCALL): Undefine under this condition, not just [!__arch64__]. [!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400] (__ASSUME_CONNECT_SYSCALL): Likewise. [!__arch64__ && __LINUX_KERNEL_VERSION < 0x040400] (__ASSUME_RECVFROM_SYSCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x040400] (__ASSUME_BIND_SYSCALL): Define. [__LINUX_KERNEL_VERSION >= 0x040400] (__ASSUME_LISTEN_SYSCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x040400] (__ASSUME_SETSOCKOPT_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (bind): Remove. (listen): Likewise. (setsockopt): Likewise.
8 lines
313 B
Plaintext
8 lines
313 B
Plaintext
# File name Caller Syscall name # args Strong name Weak names
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getpeername - getpeername 3 __getpeername getpeername
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getsockname - getsockname 3 __getsockname getsockname
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getsockopt - getsockopt 5 __getsockopt getsockopt
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shutdown - shutdown 2 __shutdown shutdown
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socketpair - socketpair 4 __socketpair socketpair
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