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linux(4): remove unfinished vsyscall bits on arm64

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The vsyscall mechanism is obsolete.

Reviewed By:	dchagin, emaste
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D31091
This commit is contained in:
Edward Tomasz Napierala 2021-07-13 09:52:13 +00:00
parent 3c900106ea
commit 84a3963d5d
1 changed files with 1 additions and 12 deletions
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13
sys/arm64/linux/linux_sysvec.c
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@ -86,7 +86,6 @@ static void linux_set_syscall_retval(struct thread *td, int error);
static int linux_fetch_syscall_args(struct thread *td);
static void linux_exec_setregs(struct thread *td, struct image_params *imgp,
uintptr_t stack);
static int linux_vsyscall(struct thread *td);
/* DTrace init */
LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
@ -98,7 +97,6 @@ LIN_SDT_PROBE_DEFINE0(sysvec, linux_copyout_auxargs, todo);
LIN_SDT_PROBE_DEFINE0(sysvec, linux_elf_fixup, todo);
LIN_SDT_PROBE_DEFINE0(sysvec, linux_rt_sigreturn, todo);
LIN_SDT_PROBE_DEFINE0(sysvec, linux_rt_sendsig, todo);
LIN_SDT_PROBE_DEFINE0(sysvec, linux_vsyscall, todo);
LIN_SDT_PROBE_DEFINE0(sysvec, linux_vdso_install, todo);
LIN_SDT_PROBE_DEFINE0(sysvec, linux_vdso_deinstall, todo);
@ -397,15 +395,6 @@ linux_rt_sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
LIN_SDT_PROBE0(sysvec, linux_rt_sendsig, todo);
}
static int
linux_vsyscall(struct thread *td)
{
/* LINUXTODO: implement */
LIN_SDT_PROBE0(sysvec, linux_vsyscall, todo);
return (EDOOFUS);
}
struct sysentvec elf_linux_sysvec = {
.sv_size = LINUX_SYS_MAXSYSCALL,
.sv_table = linux_sysent,
@ -440,7 +429,7 @@ struct sysentvec elf_linux_sysvec = {
.sv_shared_page_len = PAGE_SIZE,
.sv_schedtail = linux_schedtail,
.sv_thread_detach = linux_thread_detach,
.sv_trap = linux_vsyscall,
.sv_trap = NULL,
.sv_hwcap = &elf_hwcap,
.sv_hwcap2 = &elf_hwcap2,
.sv_onexec = linux_on_exec,