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446d22e91d
This adds system call wrappers for pkey_alloc, pkey_free, pkey_mprotect, and x86-64 implementations of pkey_get and pkey_set, which abstract over the PKRU CPU register and hide the actual number of memory protection keys supported by the CPU. pkey_mprotect with a -1 key is implemented using mprotect, so it will work even if the kernel does not support the pkey_mprotect system call. The system call wrapers use unsigned int instead of unsigned long for parameters, so that no special treatment for x32 is needed. The flags argument is currently unused, and the access rights bit mask is limited to two bits by the current PKRU register layout anyway. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
185 lines
3.3 KiB
Plaintext
185 lines
3.3 KiB
Plaintext
libc {
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# The comment lines with "#errlist-compat" are magic; see errlist-compat.awk.
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# When you get an error from errlist-compat.awk, you need to add a new
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# version here. Don't do this blindly, since this means changing the ABI
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# for all GNU/Linux configurations.
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GLIBC_2.0 {
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# functions used in inline functions or macros
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__cmsg_nxthdr;
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# functions used in other libraries
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__clone;
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# helper functions
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__errno_location;
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# b*
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bdflush;
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# c*
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clone; create_module;
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# d*
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delete_module;
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# g*
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get_kernel_syms; getresgid; getresuid;
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# i*
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init_module;
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# k*
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klogctl;
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# l*
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llseek;
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# m*
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mremap;
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# n*
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nfsservctl;
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# p*
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personality; prctl;
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# q*
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query_module; quotactl;
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# s*
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setfsgid; setfsuid;
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# s*
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setresgid; setresuid; swapoff; swapon; sysctl; sysinfo;
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# u*
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umount; uselib;
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#errlist-compat 123
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_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
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}
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GLIBC_2.1 {
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# functions used in inline functions or macros
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__libc_sa_len;
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# Since we have new signals this structure changed.
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_sys_siglist; sys_siglist; sys_sigabbrev;
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# New errlist.
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_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
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# chown interface change.
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chown;
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# Change in pthread_attr_t.
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pthread_attr_init;
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# c*
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capget; capset;
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# n*
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ntp_adjtime; ntp_gettime;
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# u*
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umount2;
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#errlist-compat 125
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_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
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}
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GLIBC_2.2 {
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# needed in other libraries.
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__endmntent; __getmntent_r; __setmntent; __statfs; __sysctl;
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# ipc ctl interface change.
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semctl; shmctl; msgctl;
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}
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GLIBC_2.2.1 {
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# p*
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pivot_root;
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}
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GLIBC_2.3 {
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# r*
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readahead;
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#errlist-compat 126
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_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
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}
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GLIBC_2.3.2 {
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# New kernel interfaces.
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epoll_create; epoll_ctl; epoll_wait;
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}
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GLIBC_2.3.3 {
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gnu_dev_major; gnu_dev_minor; gnu_dev_makedev;
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}
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GLIBC_2.3.4 {
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sched_getaffinity; sched_setaffinity;
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}
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GLIBC_2.4 {
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inotify_init; inotify_add_watch; inotify_rm_watch;
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unshare;
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#errlist-compat 132
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_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
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}
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GLIBC_2.5 {
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splice; tee; vmsplice;
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}
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GLIBC_2.6 {
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epoll_pwait; sync_file_range; sched_getcpu;
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}
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GLIBC_2.7 {
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eventfd; eventfd_read; eventfd_write; signalfd;
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}
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GLIBC_2.8 {
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timerfd_create; timerfd_settime; timerfd_gettime;
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}
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GLIBC_2.9 {
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epoll_create1; inotify_init1;
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}
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GLIBC_2.10 {
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fallocate;
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}
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GLIBC_2.12 {
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#errlist-compat 135
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_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
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ntp_gettimex;
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recvmmsg;
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}
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GLIBC_2.13 {
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prlimit; prlimit64;
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fanotify_init; fanotify_mark;
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}
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GLIBC_2.14 {
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clock_adjtime;
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name_to_handle_at; open_by_handle_at;
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setns;
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sendmmsg;
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}
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GLIBC_2.15 {
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process_vm_readv; process_vm_writev;
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}
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GLIBC_2.27 {
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memfd_create;
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mlock2;
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pkey_alloc; pkey_free; pkey_set; pkey_get; pkey_mprotect;
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}
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GLIBC_PRIVATE {
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# functions used in other libraries
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__syscall_rt_sigqueueinfo;
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__open_nocancel;
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__read_nocancel;
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__close_nocancel;
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__sigtimedwait;
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# functions used by nscd
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__netlink_assert_response;
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}
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}
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