| entry.S (08a7c7772b4db0be06e3b27239147c0a36e2a507) | entry.S (a4261d4bb45022e1b8b95df13dbb05abac490165) |
|---|---|
| 1/* SPDX-License-Identifier: GPL-2.0 */ 2/* arch/sparc/kernel/entry.S: Sparc trap low-level entry points. 3 * 4 * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) 5 * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) 6 * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) 7 * Copyright (C) 1996-1999 Jakub Jelinek (jj@sunsite.mff.cuni.cz) 8 * Copyright (C) 1997 Anton Blanchard (anton@progsoc.uts.edu.au) --- 855 unchanged lines hidden (view full) --- 864 .globl sys_fork, flush_patch_two 865sys_fork: 866 mov %o7, %l5 867flush_patch_two: 868 FLUSH_ALL_KERNEL_WINDOWS; 869 ld [%curptr + TI_TASK], %o4 870 rd %psr, %g4 871 WRITE_PAUSE | 1/* SPDX-License-Identifier: GPL-2.0 */ 2/* arch/sparc/kernel/entry.S: Sparc trap low-level entry points. 3 * 4 * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) 5 * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) 6 * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) 7 * Copyright (C) 1996-1999 Jakub Jelinek (jj@sunsite.mff.cuni.cz) 8 * Copyright (C) 1997 Anton Blanchard (anton@progsoc.uts.edu.au) --- 855 unchanged lines hidden (view full) --- 864 .globl sys_fork, flush_patch_two 865sys_fork: 866 mov %o7, %l5 867flush_patch_two: 868 FLUSH_ALL_KERNEL_WINDOWS; 869 ld [%curptr + TI_TASK], %o4 870 rd %psr, %g4 871 WRITE_PAUSE |
| 872 mov SIGCHLD, %o0 ! arg0: clone flags | |
| 873 rd %wim, %g5 874 WRITE_PAUSE | 872 rd %wim, %g5 873 WRITE_PAUSE |
| 875 mov %fp, %o1 ! arg1: usp | |
| 876 std %g4, [%o4 + AOFF_task_thread + AOFF_thread_fork_kpsr] | 874 std %g4, [%o4 + AOFF_task_thread + AOFF_thread_fork_kpsr] |
| 877 add %sp, STACKFRAME_SZ, %o2 ! arg2: pt_regs ptr 878 mov 0, %o3 879 call sparc_do_fork | 875 add %sp, STACKFRAME_SZ, %o0 876 call sparc_fork |
| 880 mov %l5, %o7 881 882 /* Whee, kernel threads! */ 883 .globl sys_clone, flush_patch_three 884sys_clone: 885 mov %o7, %l5 886flush_patch_three: 887 FLUSH_ALL_KERNEL_WINDOWS; 888 ld [%curptr + TI_TASK], %o4 889 rd %psr, %g4 890 WRITE_PAUSE | 877 mov %l5, %o7 878 879 /* Whee, kernel threads! */ 880 .globl sys_clone, flush_patch_three 881sys_clone: 882 mov %o7, %l5 883flush_patch_three: 884 FLUSH_ALL_KERNEL_WINDOWS; 885 ld [%curptr + TI_TASK], %o4 886 rd %psr, %g4 887 WRITE_PAUSE |
| 891 892 /* arg0,1: flags,usp -- loaded already */ 893 cmp %o1, 0x0 ! Is new_usp NULL? | |
| 894 rd %wim, %g5 895 WRITE_PAUSE | 888 rd %wim, %g5 889 WRITE_PAUSE |
| 896 be,a 1f 897 mov %fp, %o1 ! yes, use callers usp 898 andn %o1, 7, %o1 ! no, align to 8 bytes 8991: | |
| 900 std %g4, [%o4 + AOFF_task_thread + AOFF_thread_fork_kpsr] | 890 std %g4, [%o4 + AOFF_task_thread + AOFF_thread_fork_kpsr] |
| 901 add %sp, STACKFRAME_SZ, %o2 ! arg2: pt_regs ptr 902 mov 0, %o3 903 call sparc_do_fork | 891 add %sp, STACKFRAME_SZ, %o0 892 call sparc_clone |
| 904 mov %l5, %o7 905 906 /* Whee, real vfork! */ 907 .globl sys_vfork, flush_patch_four 908sys_vfork: 909flush_patch_four: 910 FLUSH_ALL_KERNEL_WINDOWS; 911 ld [%curptr + TI_TASK], %o4 912 rd %psr, %g4 913 WRITE_PAUSE 914 rd %wim, %g5 915 WRITE_PAUSE 916 std %g4, [%o4 + AOFF_task_thread + AOFF_thread_fork_kpsr] | 893 mov %l5, %o7 894 895 /* Whee, real vfork! */ 896 .globl sys_vfork, flush_patch_four 897sys_vfork: 898flush_patch_four: 899 FLUSH_ALL_KERNEL_WINDOWS; 900 ld [%curptr + TI_TASK], %o4 901 rd %psr, %g4 902 WRITE_PAUSE 903 rd %wim, %g5 904 WRITE_PAUSE 905 std %g4, [%o4 + AOFF_task_thread + AOFF_thread_fork_kpsr] |
| 917 sethi %hi(0x4000 | 0x0100 | SIGCHLD), %o0 918 mov %fp, %o1 919 or %o0, %lo(0x4000 | 0x0100 | SIGCHLD), %o0 920 sethi %hi(sparc_do_fork), %l1 921 mov 0, %o3 922 jmpl %l1 + %lo(sparc_do_fork), %g0 923 add %sp, STACKFRAME_SZ, %o2 | 906 sethi %hi(sparc_vfork), %l1 907 jmpl %l1 + %lo(sparc_vfork), %g0 908 add %sp, STACKFRAME_SZ, %o0 |
| 924 925 .align 4 926linux_sparc_ni_syscall: 927 sethi %hi(sys_ni_syscall), %l7 928 b do_syscall 929 or %l7, %lo(sys_ni_syscall), %l7 930 931linux_syscall_trace: --- 441 unchanged lines hidden --- | 909 910 .align 4 911linux_sparc_ni_syscall: 912 sethi %hi(sys_ni_syscall), %l7 913 b do_syscall 914 or %l7, %lo(sys_ni_syscall), %l7 915 916linux_syscall_trace: --- 441 unchanged lines hidden --- |