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sparc64: exit_group should kill register windows just like plain exit.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
7e5530af11
commit
de7531e857
3 changed files with 14 additions and 4 deletions
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@ -47,7 +47,7 @@ STUB: sra REG1, 0, REG1; \
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sra REG4, 0, REG4
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SIGN1(sys32_exit, sparc_exit, %o0)
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SIGN1(sys32_exit_group, sys_exit_group, %o0)
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SIGN1(sys32_exit_group, sparc_exit_group, %o0)
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SIGN1(sys32_wait4, compat_sys_wait4, %o2)
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SIGN1(sys32_creat, sys_creat, %o1)
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SIGN1(sys32_mknod, sys_mknod, %o1)
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@ -118,10 +118,20 @@ ret_from_syscall:
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ba,pt %xcc, ret_sys_call
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ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0
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.globl sparc_exit_group
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.type sparc_exit_group,#function
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sparc_exit_group:
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sethi %hi(sys_exit_group), %g7
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ba,pt %xcc, 1f
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or %g7, %lo(sys_exit_group), %g7
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.size sparc_exit_group,.-sparc_exit_group
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.globl sparc_exit
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.type sparc_exit,#function
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sparc_exit:
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rdpr %pstate, %g2
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sethi %hi(sys_exit), %g7
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or %g7, %lo(sys_exit), %g7
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1: rdpr %pstate, %g2
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wrpr %g2, PSTATE_IE, %pstate
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rdpr %otherwin, %g1
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rdpr %cansave, %g3
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@ -129,7 +139,7 @@ sparc_exit:
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wrpr %g3, 0x0, %cansave
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wrpr %g0, 0x0, %otherwin
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wrpr %g2, 0x0, %pstate
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ba,pt %xcc, sys_exit
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jmpl %g7, %g0
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stb %g0, [%g6 + TI_WSAVED]
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.size sparc_exit,.-sparc_exit
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@ -133,7 +133,7 @@ sys_call_table:
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/*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents
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.word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr
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/*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall
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.word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname
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.word sys_setpgid, sys_fremovexattr, sys_tkill, sparc_exit_group, sys_newuname
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/*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
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.word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask
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/*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall
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