diff options
| -rw-r--r-- | ChangeLog | 15 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/makecontext.S | 145 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/getcontext.S | 90 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/setcontext.S | 101 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S | 134 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h | 102 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h | 79 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh4/getcontext.S | 133 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh4/setcontext.S | 141 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S | 216 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh4/sys/ucontext.h (renamed from sysdeps/unix/sysv/linux/sh/sys/ucontext.h) | 12 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h | 149 |
12 files changed, 1314 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog index d3c7b236c7..515becbdb3 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,18 @@ +2005-10-16 Kaz Kojima <kkojima@rr.iij4u.or.jp> + + * sysdeps/unix/sysv/linux/sh/makecontext.S: New file. + * sysdeps/unix/sysv/linux/sh/sh3/getcontext.S: New file. + * sysdeps/unix/sysv/linux/sh/sh4/getcontext.S: New file. + * sysdeps/unix/sysv/linux/sh/sh3/setcontext.S: New file. + * sysdeps/unix/sysv/linux/sh/sh4/setcontext.S: New file. + * sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S: New file. + * sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S: New file. + * sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h: New file. + * sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h: New file. + * sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Removed. + * sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h: New file. + * sysdeps/unix/sysv/linux/sh/sh4/sys/ucontext.h: New file. + 2005-09-13 Jakub Jelinek <jakub@redhat.com> [BZ #1228] diff --git a/sysdeps/unix/sysv/linux/sh/makecontext.S b/sysdeps/unix/sysv/linux/sh/makecontext.S new file mode 100644 index 0000000000..deb6181750 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/makecontext.S @@ -0,0 +1,145 @@ +/* Create new 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" + +/* void __makecontext (struct ucontext *ucp, void (*func)(), int argc, ...); + __makecontext sets up a stack and registers for context to run a given + function. The registers are set up like this: + r4-r7: parameters 1 to 4 + r8 : uc_link from ucontext structure + pc : (*func) pointer + pr : address of exitcode + r15 : stack pointer for func. */ + + .text + .align 5 + cfi_startproc +ENTRY(__makecontext) + mov #4, r3 + mov.l @(oSS_SP,r4), r1 + mov.l @(oSS_SIZE,r4), r2 + add r1, r2 + cmp/gt r6, r3 + bf/s 1f + shlr2 r2 + sub r6, r2 + add r3, r2 +1: + shll2 r2 + mov #oR15, r0 + mov.l @(oLINK,r4), r1 + mov.l r2, @(r0,r4) + mov.l r1, @(oR8,r4) + mov #oPC, r0 + mov.l r5, @(r0,r4) + + cmp/pl r6 + bf/s .L1 + dt r6 + mov.l r7, @(oR4,r4) + cmp/pl r6 + bf/s .L1 + dt r6 + mov.l @(0,r15), r1 + mov.l r1, @(oR5,r4) + cmp/pl r6 + bf/s .L1 + dt r6 + mov.l @(4,r15), r1 + mov.l r1, @(oR6,r4) + cmp/pl r6 + bf/s .L1 + dt r6 + mov.l @(8,r15), r1 + mov.l r1, @(oR7,r4) + mov #12,r0 +.L0: + cmp/pl r6 + bf/s .L1 + dt r6 + mov.l @(r0,r15), r1 + mov.l r1, @r2 + add #4, r0 + bra .L0 + add #4, r2 +.L1: +#ifdef PIC + mova .Lexitcode, r0 +#else + mov.l .L2, r0 +#endif + add #oPR, r4 + rts + mov.l r0, @r4 +#ifndef PIC + .align 2 +.L2: + .long .Lexitcode +#endif + cfi_endproc + + .align 5 +.Lexitcode: + tst r8, r8 + bt/s 2f + mov r8, r4 +#ifdef PIC + mova .Lgot, r0 + mov.l .Lgot, r12 + add r0, r12 + mov.l .L3, r1 + bsrf r1 +.LPCS0: + nop +#else + mov.l .L3, r1 + jsr @r1 + nop +#endif +2: + mov.l .L4, r1 +#ifdef PIC + add r12, r1 +#endif + jsr @r1 + mov r0, r4 +0: + bra 0b + nop + + .align 2 +#ifdef PIC +.Lgot: + .long _GLOBAL_OFFSET_TABLE_ +.L3: + .long __setcontext@PLT-(.LPCS0+2-(.)) +.L4: + .long HIDDEN_JUMPTARGET(exit)@GOTOFF +#else +.L3: + .long __setcontext +.L4: + .long HIDDEN_JUMPTARGET(exit) +#endif +PSEUDO_END(__makecontext) + +weak_alias (__makecontext, makecontext) 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..3ea47d4a5c --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S @@ -0,0 +1,90 @@ +/* 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 + cfi_startproc +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 + + cfi_endproc +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..30fbf7dec3 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S @@ -0,0 +1,101 @@ +/* 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 + cfi_startproc +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 + + cfi_endproc +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..aa0129e9ac --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S @@ -0,0 +1,134 @@ +/* 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 + cfi_startproc +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 + + cfi_endproc +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.h b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h new file mode 100644 index 0000000000..d8483dbe64 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h @@ -0,0 +1,79 @@ +/* Offsets and other constants needed in the *context() function + implementation. + 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. */ + +#define SIG_BLOCK 0 +#define SIG_SETMASK 2 + +/* Offsets of the fields in the ucontext_t structure. */ +#define oLINK 4 +#define oSS_SP 8 +#define oSS_SIZE 16 +#define oR0 24 +#define oR1 28 +#define oR2 32 +#define oR3 36 +#define oR4 40 +#define oR5 44 +#define oR6 48 +#define oR7 52 +#define oR8 56 +#define oR9 60 +#define oR10 64 +#define oR11 68 +#define oR12 72 +#define oR13 76 +#define oR14 80 +#define oR15 84 +#define oPC 88 +#define oPR 92 +#define oSR 96 +#define oGBR 100 +#define oMACH 104 +#define oMACL 108 +#define oSIGMASK 112 + +/* Tests run in stdlib/tst-ucontext-off. */ +#define TESTS \ + TEST (uc_link, oLINK); \ + TEST (uc_stack.ss_sp, oSS_SP); \ + TEST (uc_stack.ss_size, oSS_SIZE); \ + TEST (uc_mcontext.gregs[R0], oR0); \ + TEST (uc_mcontext.gregs[R1], oR1); \ + TEST (uc_mcontext.gregs[R2], oR2); \ + TEST (uc_mcontext.gregs[R3], oR3); \ + TEST (uc_mcontext.gregs[R4], oR4); \ + TEST (uc_mcontext.gregs[R5], oR5); \ + TEST (uc_mcontext.gregs[R6], oR6); \ + TEST (uc_mcontext.gregs[R7], oR7); \ + TEST (uc_mcontext.gregs[R8], oR8); \ + TEST (uc_mcontext.gregs[R9], oR9); \ + TEST (uc_mcontext.gregs[R10], oR10); \ + TEST (uc_mcontext.gregs[R11], oR11); \ + TEST (uc_mcontext.gregs[R12], oR12); \ + TEST (uc_mcontext.gregs[R13], oR13); \ + TEST (uc_mcontext.gregs[R14], oR14); \ + TEST (uc_mcontext.gregs[R15], oR15); \ + TEST (uc_mcontext.pc, oPC); \ + TEST (uc_mcontext.pr, oPR); \ + TEST (uc_mcontext.sr, oSR); \ + TEST (uc_mcontext.gbr, oGBR); \ + TEST (uc_mcontext.mach, oMACH); \ + TEST (uc_mcontext.macl, oMACL); \ + TEST (uc_sigmask, oSIGMASK); diff --git a/sysdeps/unix/sysv/linux/sh/sh4/getcontext.S b/sysdeps/unix/sysv/linux/sh/sh4/getcontext.S new file mode 100644 index 0000000000..380c4591dd --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh4/getcontext.S @@ -0,0 +1,133 @@ +/* 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 + cfi_startproc +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 + + mov r4, r0 + /* We need 2 add instruction because oFPUL+4 > 127. */ + add #124,r0 + add #(oFPUL+4-124),r0 + sts.l fpul, @-r0 + sts.l fpscr, @-r0 + frchg + fmov.s fr15, @-r0 + fmov.s fr14, @-r0 + fmov.s fr13, @-r0 + fmov.s fr12, @-r0 + fmov.s fr11, @-r0 + fmov.s fr10, @-r0 + fmov.s fr9, @-r0 + fmov.s fr8, @-r0 + fmov.s fr7, @-r0 + fmov.s fr6, @-r0 + fmov.s fr5, @-r0 + fmov.s fr4, @-r0 + fmov.s fr3, @-r0 + fmov.s fr2, @-r0 + fmov.s fr1, @-r0 + fmov.s fr0, @-r0 + frchg + fmov.s fr15, @-r0 + fmov.s fr14, @-r0 + fmov.s fr13, @-r0 + fmov.s fr12, @-r0 + fmov.s fr11, @-r0 + fmov.s fr10, @-r0 + fmov.s fr9, @-r0 + fmov.s fr8, @-r0 + fmov.s fr7, @-r0 + fmov.s fr6, @-r0 + fmov.s fr5, @-r0 + fmov.s fr4, @-r0 + fmov.s fr3, @-r0 + fmov.s fr2, @-r0 + fmov.s fr1, @-r0 + fmov.s fr0, @-r0 + + /* sigprocmask (SIG_BLOCK, NULL, &uc->uc_sigmask). */ + mov r4, r6 + /* We need 2 add instruction because oSIGMASK > 127. */ + add #(oSIGMASK/2), r6 + add #(oSIGMASK/2), 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 + + cfi_endproc +PSEUDO_END(__getcontext) + +weak_alias (__getcontext, getcontext) diff --git a/sysdeps/unix/sysv/linux/sh/sh4/setcontext.S b/sysdeps/unix/sysv/linux/sh/sh4/setcontext.S new file mode 100644 index 0000000000..9e98910b4b --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh4/setcontext.S @@ -0,0 +1,141 @@ +/* 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 + cfi_startproc +ENTRY(__setcontext) + + mov r4, r8 + + /* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, NULL). */ + mov r4, r5 + add #(oSIGMASK/2), r5 + add #(oSIGMASK/2), 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 #(oFR0),r0 + fmov.s @r0+, fr0 + fmov.s @r0+, fr1 + fmov.s @r0+, fr2 + fmov.s @r0+, fr3 + fmov.s @r0+, fr4 + fmov.s @r0+, fr5 + fmov.s @r0+, fr6 + fmov.s @r0+, fr7 + fmov.s @r0+, fr8 + fmov.s @r0+, fr9 + fmov.s @r0+, fr10 + fmov.s @r0+, fr11 + fmov.s @r0+, fr12 + fmov.s @r0+, fr13 + fmov.s @r0+, fr14 + fmov.s @r0+, fr15 + frchg + fmov.s @r0+, fr0 + fmov.s @r0+, fr1 + fmov.s @r0+, fr2 + fmov.s @r0+, fr3 + fmov.s @r0+, fr4 + fmov.s @r0+, fr5 + fmov.s @r0+, fr6 + fmov.s @r0+, fr7 + fmov.s @r0+, fr8 + fmov.s @r0+, fr9 + fmov.s @r0+, fr10 + fmov.s @r0+, fr11 + fmov.s @r0+, fr12 + fmov.s @r0+, fr13 + fmov.s @r0+, fr14 + fmov.s @r0+, fr15 + frchg + lds.l @r0+, fpscr + lds.l @r0+, fpul + + 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 + + cfi_endproc +PSEUDO_END(__setcontext) + +weak_alias (__setcontext, setcontext) diff --git a/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S b/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S new file mode 100644 index 0000000000..1d58a40e70 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S @@ -0,0 +1,216 @@ +/* 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 + cfi_startproc +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 r4, r0 + /* We need 2 add instruction because oFPUL+4 >= 127. */ + add #124,r0 + add #(oFPUL+4-124),r0 + sts.l fpul, @-r0 + sts.l fpscr, @-r0 + frchg + fmov.s fr15, @-r0 + fmov.s fr14, @-r0 + fmov.s fr13, @-r0 + fmov.s fr12, @-r0 + fmov.s fr11, @-r0 + fmov.s fr10, @-r0 + fmov.s fr9, @-r0 + fmov.s fr8, @-r0 + fmov.s fr7, @-r0 + fmov.s fr6, @-r0 + fmov.s fr5, @-r0 + fmov.s fr4, @-r0 + fmov.s fr3, @-r0 + fmov.s fr2, @-r0 + fmov.s fr1, @-r0 + fmov.s fr0, @-r0 + frchg + fmov.s fr15, @-r0 + fmov.s fr14, @-r0 + fmov.s fr13, @-r0 + fmov.s fr12, @-r0 + fmov.s fr11, @-r0 + fmov.s fr10, @-r0 + fmov.s fr9, @-r0 + fmov.s fr8, @-r0 + fmov.s fr7, @-r0 + fmov.s fr6, @-r0 + fmov.s fr5, @-r0 + fmov.s fr4, @-r0 + fmov.s fr3, @-r0 + fmov.s fr2, @-r0 + fmov.s fr1, @-r0 + fmov.s fr0, @-r0 + + mov r5, r8 + + /* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, &ouc->uc_sigmask). */ + mov #oSIGMASK, r1 + extu.b r1, r1 + add r1, r5 + mov r4, r6 + add r1, 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 #(oFR0),r0 + fmov.s @r0+, fr0 + fmov.s @r0+, fr1 + fmov.s @r0+, fr2 + fmov.s @r0+, fr3 + fmov.s @r0+, fr4 + fmov.s @r0+, fr5 + fmov.s @r0+, fr6 + fmov.s @r0+, fr7 + fmov.s @r0+, fr8 + fmov.s @r0+, fr9 + fmov.s @r0+, fr10 + fmov.s @r0+, fr11 + fmov.s @r0+, fr12 + fmov.s @r0+, fr13 + fmov.s @r0+, fr14 + fmov.s @r0+, fr15 + frchg + fmov.s @r0+, fr0 + fmov.s @r0+, fr1 + fmov.s @r0+, fr2 + fmov.s @r0+, fr3 + fmov.s @r0+, fr4 + fmov.s @r0+, fr5 + fmov.s @r0+, fr6 + fmov.s @r0+, fr7 + fmov.s @r0+, fr8 + fmov.s @r0+, fr9 + fmov.s @r0+, fr10 + fmov.s @r0+, fr11 + fmov.s @r0+, fr12 + fmov.s @r0+, fr13 + fmov.s @r0+, fr14 + fmov.s @r0+, fr15 + frchg + lds.l @r0+, fpscr + lds.l @r0+, fpul + + 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 + + cfi_endproc +PSEUDO_END(__swapcontext) + +weak_alias (__swapcontext, swapcontext) diff --git a/sysdeps/unix/sysv/linux/sh/sys/ucontext.h b/sysdeps/unix/sysv/linux/sh/sh4/sys/ucontext.h index 78729c48f9..cd831a7a21 100644 --- a/sysdeps/unix/sysv/linux/sh/sys/ucontext.h +++ b/sysdeps/unix/sysv/linux/sh/sh4/sys/ucontext.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. +/* 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 @@ -87,13 +87,19 @@ typedef freg_t fpregset_t[NFPREG]; /* 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; fpregset_t fpregs; fpregset_t xfpregs; unsigned int fpscr; unsigned int fpul; - unsigned int macl; - unsigned int mach; + unsigned int ownedfp; } mcontext_t; /* Userlevel context. */ diff --git a/sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h b/sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h new file mode 100644 index 0000000000..88f774f0ad --- /dev/null +++ b/sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h @@ -0,0 +1,149 @@ +/* Offsets and other constants needed in the *context() function + implementation. + 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. */ + +#define SIG_BLOCK 0 +#define SIG_SETMASK 2 + +/* Offsets of the fields in the ucontext_t structure. */ +#define oLINK 4 +#define oSS_SP 8 +#define oSS_SIZE 16 +#define oR0 24 +#define oR1 28 +#define oR2 32 +#define oR3 36 +#define oR4 40 +#define oR5 44 +#define oR6 48 +#define oR7 52 +#define oR8 56 +#define oR9 60 +#define oR10 64 +#define oR11 68 +#define oR12 72 +#define oR13 76 +#define oR14 80 +#define oR15 84 +#define oPC 88 +#define oPR 92 +#define oSR 96 +#define oGBR 100 +#define oMACH 104 +#define oMACL 108 +#define oFR0 112 +#define oFR1 116 +#define oFR2 120 +#define oFR3 124 +#define oFR4 128 +#define oFR5 132 +#define oFR6 136 +#define oFR7 140 +#define oFR8 144 +#define oFR9 148 +#define oFR10 152 +#define oFR11 156 +#define oFR12 160 +#define oFR13 164 +#define oFR14 168 +#define oFR15 172 +#define oXFR0 176 +#define oXFR1 180 +#define oXFR2 184 +#define oXFR3 188 +#define oXFR4 192 +#define oXFR5 196 +#define oXFR6 200 +#define oXFR7 204 +#define oXFR8 208 +#define oXFR9 212 +#define oXFR10 216 +#define oXFR11 220 +#define oXFR12 224 +#define oXFR13 228 +#define oXFR14 232 +#define oXFR15 236 +#define oFPSCR 240 +#define oFPUL 244 +#define oOWNEDFP 248 +#define oSIGMASK 252 + +/* Tests run in stdlib/tst-ucontext-off. */ +#define TESTS \ + TEST (uc_link, oLINK); \ + TEST (uc_stack.ss_sp, oSS_SP); \ + TEST (uc_stack.ss_size, oSS_SIZE); \ + TEST (uc_mcontext.gregs[R0], oR0); \ + TEST (uc_mcontext.gregs[R1], oR1); \ + TEST (uc_mcontext.gregs[R2], oR2); \ + TEST (uc_mcontext.gregs[R3], oR3); \ + TEST (uc_mcontext.gregs[R4], oR4); \ + TEST (uc_mcontext.gregs[R5], oR5); \ + TEST (uc_mcontext.gregs[R6], oR6); \ + TEST (uc_mcontext.gregs[R7], oR7); \ + TEST (uc_mcontext.gregs[R8], oR8); \ + TEST (uc_mcontext.gregs[R9], oR9); \ + TEST (uc_mcontext.gregs[R10], oR10); \ + TEST (uc_mcontext.gregs[R11], oR11); \ + TEST (uc_mcontext.gregs[R12], oR12); \ + TEST (uc_mcontext.gregs[R13], oR13); \ + TEST (uc_mcontext.gregs[R14], oR14); \ + TEST (uc_mcontext.gregs[R15], oR15); \ + TEST (uc_mcontext.pc, oPC); \ + TEST (uc_mcontext.pr, oPR); \ + TEST (uc_mcontext.sr, oSR); \ + TEST (uc_mcontext.gbr, oGBR); \ + TEST (uc_mcontext.mach, oMACH); \ + TEST (uc_mcontext.macl, oMACL); \ + TEST (uc_mcontext.fpregs[0], oFR0); \ + TEST (uc_mcontext.fpregs[1], oFR1); \ + TEST (uc_mcontext.fpregs[2], oFR2); \ + TEST (uc_mcontext.fpregs[3], oFR3); \ + TEST (uc_mcontext.fpregs[4], oFR4); \ + TEST (uc_mcontext.fpregs[5], oFR5); \ + TEST (uc_mcontext.fpregs[6], oFR6); \ + TEST (uc_mcontext.fpregs[7], oFR7); \ + TEST (uc_mcontext.fpregs[8], oFR8); \ + TEST (uc_mcontext.fpregs[9], oFR9); \ + TEST (uc_mcontext.fpregs[10], oFR10); \ + TEST (uc_mcontext.fpregs[11], oFR11); \ + TEST (uc_mcontext.fpregs[12], oFR12); \ + TEST (uc_mcontext.fpregs[13], oFR13); \ + TEST (uc_mcontext.fpregs[14], oFR14); \ + TEST (uc_mcontext.fpregs[15], oFR15); \ + TEST (uc_mcontext.xfpregs[0], oXFR0); \ + TEST (uc_mcontext.xfpregs[1], oXFR1); \ + TEST (uc_mcontext.xfpregs[2], oXFR2); \ + TEST (uc_mcontext.xfpregs[3], oXFR3); \ + TEST (uc_mcontext.xfpregs[4], oXFR4); \ + TEST (uc_mcontext.xfpregs[5], oXFR5); \ + TEST (uc_mcontext.xfpregs[6], oXFR6); \ + TEST (uc_mcontext.xfpregs[7], oXFR7); \ + TEST (uc_mcontext.xfpregs[8], oXFR8); \ + TEST (uc_mcontext.xfpregs[9], oXFR9); \ + TEST (uc_mcontext.xfpregs[10], oXFR10); \ + TEST (uc_mcontext.xfpregs[11], oXFR11); \ + TEST (uc_mcontext.xfpregs[12], oXFR12); \ + TEST (uc_mcontext.xfpregs[13], oXFR13); \ + TEST (uc_mcontext.xfpregs[14], oXFR14); \ + TEST (uc_mcontext.xfpregs[15], oXFR15); \ + TEST (uc_mcontext.fpscr, oFPSCR); \ + TEST (uc_mcontext.fpul, oFPUL); \ + TEST (uc_mcontext.ownedfp, oOWNEDFP); \ + TEST (uc_sigmask, oSIGMASK); |