* 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.
+2005-10-16 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]
--- /dev/null
+/* 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)
--- /dev/null
+/* 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)
--- /dev/null
+/* 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)
--- /dev/null
+/* 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)
--- /dev/null
+/* 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 */
--- /dev/null
+/* 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);
--- /dev/null
+/* 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)
--- /dev/null
+/* 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)
--- /dev/null
+/* 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)
-/* 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
/* 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. */
--- /dev/null
+/* 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);
projects / platform / upstream / glibc.git / commitdiff