diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/sh3')
-rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/getcontext.S | 88 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/setcontext.S | 99 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S | 132 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h | 102 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym | 38 |
5 files changed, 459 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S new file mode 100644 index 0000000000..66b3daaa3b --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S @@ -0,0 +1,88 @@ +/* Save current context. + Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> + +#include "ucontext_i.h" + +/* int __getcontext (ucontext_t *uc); */ + + .text + .align 5 +ENTRY(__getcontext) + + /* Return value of getcontext. R0 is the only register whose + value is not preserved. */ + mov #0, r0 + mov.l r0, @(oR0,r4) + mov.l r1, @(oR1,r4) + mov.l r2, @(oR2,r4) + mov.l r3, @(oR3,r4) + mov.l r4, @(oR4,r4) + mov.l r5, @(oR5,r4) + mov.l r6, @(oR6,r4) + mov.l r7, @(oR7,r4) + mov r4, r0 + add #(oMACL+4), r0 + sts.l macl, @-r0 + sts.l mach, @-r0 + stc.l gbr, @-r0 + + /* Save T flag to SR. */ + movt r1 + mov.l r1, @-r0 + sts.l pr, @-r0 + + /* The return address of getcontext is the restart pc. */ + sts.l pr, @-r0 + + mov.l r15, @-r0 + mov.l r14, @-r0 + mov.l r13, @-r0 + mov.l r12, @-r0 + mov.l r11, @-r0 + mov.l r10, @-r0 + mov.l r9, @-r0 + mov.l r8, @-r0 + + /* sigprocmask (SIG_BLOCK, NULL, &uc->uc_sigmask). */ + mov r4, r6 + add #oSIGMASK, r6 + mov #SIG_BLOCK, r4 + mov #0, r5 + mov #+SYS_ify(sigprocmask), r3 + trapa #0x13 + mov r0, r1 + mov #-12, r2 + shad r2, r1 + not r1, r1 // r1=0 means r0 = -1 to -4095 + tst r1, r1 // i.e. error in linux + bf .Lgetcontext_end +.Lsyscall_error: + SYSCALL_ERROR_HANDLER +.Lgetcontext_end: + /* All done, return 0 for success. */ + mov #0, r0 +.Lpseudo_end: + rts + nop + +PSEUDO_END(__getcontext) + +weak_alias (__getcontext, getcontext) diff --git a/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S new file mode 100644 index 0000000000..3136267aca --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S @@ -0,0 +1,99 @@ +/* Install given context. + Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> + +#include "ucontext_i.h" + +/* int __setcontext (const ucontext_t *uc); */ + + .text + .align 5 +ENTRY(__setcontext) + + mov r4, r8 + + /* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, NULL). */ + mov r4, r5 + add #oSIGMASK, r5 + mov #SIG_SETMASK, r4 + mov #0, r6 + mov #+SYS_ify(sigprocmask), r3 + trapa #0x13 + mov r0, r1 + mov #-12, r2 + shad r2, r1 + not r1, r1 // r1=0 means r0 = -1 to -4095 + tst r1, r1 // i.e. error in linux + bf .Lsetcontext_restore +.Lsyscall_error: + SYSCALL_ERROR_HANDLER +.Lpseudo_end: + rts + nop + +.Lsetcontext_restore: + mov r8, r0 + add #(oPC), r0 + mov.l @r0+, r2 + lds.l @r0+, pr + + /* Restore T frag. */ + mov.l @r0+, r1 + shlr r1 + /* Skip GBR which is used for thread pointer. */ + add #4, r0 + + lds.l @r0+, mach + lds.l @r0+, macl + + mov r8, r0 + add #(oR9), r0 + mov.l @r0+, r9 + mov.l @r0+, r10 + mov.l @r0+, r11 + mov.l @r0+, r12 + mov.l @r0+, r13 + mov.l @r0+, r14 + mov.l @r0+, r15 + + mov r8, r0 + mov.l @(oR0,r0), r1 + mov.l r1, @-r15 + cfi_adjust_cfa_offset(4) + cfi_rel_offset (r1, 0) + mov.l r2, @-r15 + cfi_adjust_cfa_offset(4) + cfi_rel_offset (r2, 0) + + mov.l @(oR1,r0), r1 + mov.l @(oR2,r0), r2 + mov.l @(oR3,r0), r3 + mov.l @(oR4,r0), r4 + mov.l @(oR5,r0), r5 + mov.l @(oR6,r0), r6 + mov.l @(oR7,r0), r7 + mov.l @(oR8,r0), r8 + mov.l @r15+, r0 + jmp @r0 + mov.l @r15+, r0 + +PSEUDO_END(__setcontext) + +weak_alias (__setcontext, setcontext) diff --git a/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S new file mode 100644 index 0000000000..64035e5545 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S @@ -0,0 +1,132 @@ +/* Save current context and install the given one. + Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> + +#include "ucontext_i.h" + +/* int __swapcontext (ucontext_t *ouc, const ucontext_t *uc); */ + + .text + .align 5 +ENTRY(__swapcontext) + + /* Return value of getcontext. R0 is the only register whose + value is not preserved. */ + mov #0, r0 + mov.l r0, @(oR0,r4) + mov.l r1, @(oR1,r4) + mov.l r2, @(oR2,r4) + mov.l r3, @(oR3,r4) + mov.l r4, @(oR4,r4) + mov.l r5, @(oR5,r4) + mov.l r6, @(oR6,r4) + mov.l r7, @(oR7,r4) + mov r4, r0 + add #(oMACL+4), r0 + sts.l macl, @-r0 + sts.l mach, @-r0 + stc.l gbr, @-r0 + + /* Save T flag to SR. */ + movt r1 + mov.l r1, @-r0 + sts.l pr, @-r0 + + /* The return address of getcontext is the restart pc. */ + sts.l pr, @-r0 + + mov.l r15, @-r0 + mov.l r14, @-r0 + mov.l r13, @-r0 + mov.l r12, @-r0 + mov.l r11, @-r0 + mov.l r10, @-r0 + mov.l r9, @-r0 + mov.l r8, @-r0 + + mov r5, r8 + + /* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, &ouc->uc_sigmask). */ + add #oSIGMASK, r5 + mov r4, r6 + add #oSIGMASK, r6 + mov #SIG_SETMASK, r4 + mov #+SYS_ify(sigprocmask), r3 + trapa #0x13 + mov r0, r1 + mov #-12, r2 + shad r2, r1 + not r1, r1 // r1=0 means r0 = -1 to -4095 + tst r1, r1 // i.e. error in linux + bf .Lswapcontext_restore +.Lsyscall_error: + SYSCALL_ERROR_HANDLER +.Lpseudo_end: + rts + nop +.Lswapcontext_restore: + mov r8, r0 + add #(oPC), r0 + mov.l @r0+, r2 + lds.l @r0+, pr + + /* Restore T frag. */ + mov.l @r0+, r1 + shlr r1 + /* Skip GBR which is used for thread pointer. */ + add #4, r0 + + lds.l @r0+, mach + lds.l @r0+, macl + + mov r8, r0 + add #(oR9), r0 + mov.l @r0+, r9 + mov.l @r0+, r10 + mov.l @r0+, r11 + mov.l @r0+, r12 + mov.l @r0+, r13 + mov.l @r0+, r14 + mov.l @r0+, r15 + + mov r8, r0 + mov.l @(oR0,r0), r1 + mov.l r1, @-r15 + cfi_adjust_cfa_offset(4) + cfi_rel_offset (r1, 0) + mov.l r2, @-r15 + cfi_adjust_cfa_offset(4) + cfi_rel_offset (r2, 0) + + mov.l @(oR1,r0), r1 + mov.l @(oR2,r0), r2 + mov.l @(oR3,r0), r3 + mov.l @(oR4,r0), r4 + mov.l @(oR5,r0), r5 + mov.l @(oR6,r0), r6 + mov.l @(oR7,r0), r7 + mov.l @(oR8,r0), r8 + mov.l @r15+, r0 + jmp @r0 + mov.l @r15+, r0 + +PSEUDO_END(__swapcontext) + +weak_alias (__swapcontext, swapcontext) diff --git a/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h b/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h new file mode 100644 index 0000000000..946df0dfd6 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h @@ -0,0 +1,102 @@ +/* Copyright (C) 1999, 2000, 2001, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Where is System V/SH ABI? */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include <features.h> +#include <signal.h> + +/* We need the signal context definitions even if they are not used + included in <signal.h>. */ +#include <bits/sigcontext.h> + + +typedef int greg_t; + +/* Number of general registers. */ +#define NFPREG 16 + +/* Container for all general registers. */ +typedef greg_t gregset_t[NFPREG]; + +#ifdef __USE_GNU +/* Number of each register is the `gregset_t' array. */ +enum +{ + R0 = 0, +#define R0 R0 + R1 = 1, +#define R1 R1 + R2 = 2, +#define R2 R2 + R3 = 3, +#define R3 R3 + R4 = 4, +#define R4 R4 + R5 = 5, +#define R5 R5 + R6 = 6, +#define R6 R6 + R7 = 7, +#define R7 R7 + R8 = 8, +#define R8 R8 + R9 = 9, +#define R9 R9 + R10 = 10, +#define R10 R10 + R11 = 11, +#define R11 R11 + R12 = 12, +#define R12 R12 + R13 = 13, +#define R13 R13 + R14 = 14, +#define R14 R14 + R15 = 15, +#define R15 R15 +}; +#endif + +/* Context to describe whole processor state. */ +typedef struct + { + unsigned int oldmask; + gregset_t gregs; + unsigned int pc; + unsigned int pr; + unsigned int sr; + unsigned int gbr; + unsigned int mach; + unsigned int macl; + } mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext + { + unsigned long int uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + mcontext_t uc_mcontext; + __sigset_t uc_sigmask; + } ucontext_t; + +#endif /* sys/ucontext.h */ diff --git a/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym new file mode 100644 index 0000000000..17397c5511 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.sym @@ -0,0 +1,38 @@ +#include <stddef.h> +#include <signal.h> +#include <sys/ucontext.h> + +-- + +SIG_BLOCK +SIG_SETMASK + +#define ucontext(member) offsetof (ucontext_t, member) +#define mcontext(member) ucontext (uc_mcontext.member) + +oLINK ucontext (uc_link) +oSS_SP ucontext (uc_stack.ss_sp) +oSS_SIZE ucontext (uc_stack.ss_size) +oR0 mcontext (gregs[R0]) +oR1 mcontext (gregs[R1]) +oR2 mcontext (gregs[R2]) +oR3 mcontext (gregs[R3]) +oR4 mcontext (gregs[R4]) +oR5 mcontext (gregs[R5]) +oR6 mcontext (gregs[R6]) +oR7 mcontext (gregs[R7]) +oR8 mcontext (gregs[R8]) +oR9 mcontext (gregs[R9]) +oR10 mcontext (gregs[R10]) +oR11 mcontext (gregs[R11]) +oR12 mcontext (gregs[R12]) +oR13 mcontext (gregs[R13]) +oR14 mcontext (gregs[R14]) +oR15 mcontext (gregs[R15]) +oPC mcontext (pc) +oPR mcontext (pr) +oSR mcontext (sr) +oGBR mcontext (gbr) +oMACH mcontext (mach) +oMACL mcontext (macl) +oSIGMASK ucontext (uc_sigmask) |