| /* |
| * Copyright (c) 2001-2002 Opsycon AB (www.opsycon.se / www.opsycon.com) |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of Opsycon AB nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| */ |
| /*- |
| * Copyright (c) 1991, 1993, 1995, |
| * The Regents of the University of California. All rights reserved. |
| * |
| * This code is derived from software contributed to Berkeley by |
| * Havard Eidnes. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| /* |
| * Copyright (c) 1992, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * This code is derived from software contributed to Berkeley by |
| * Ralph Campbell. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * @(#)signal.h 8.1 (Berkeley) 6/10/93 |
| */ |
| |
| #include <private/bionic_asm.h> |
| #include <machine/setjmp.h> |
| |
| /* On Mips32, jmpbuf begins with optional 4-byte filler so that |
| * all saved FP regs are aligned on 8-byte boundary, despite this whole |
| * struct being mis-declared to users as an array of (4-byte) longs. |
| * All the following offsets are then from the rounded-up base addr |
| */ |
| |
| /* Fields of same size on all MIPS abis: */ |
| #define SC_MAGIC (0*4) /* 4 bytes, identify jmpbuf */ |
| #define SC_MASK (1*4) /* 4 bytes, saved signal mask */ |
| #define SC_FPSR (2*4) /* 4 bytes, floating point control/status reg */ |
| /* filler2 (3*4) 4 bytes, pad to 8-byte boundary */ |
| |
| /* Registers that are 4-byte on mips32 o32, and 8-byte on mips64 n64 abi */ |
| #define SC_REGS_SAVED 12 /* ra,gp,sp,s0-s8 */ |
| #define SC_REGS (4*4) /* SC_REGS_SAVED*REGSZ bytes */ |
| |
| /* Floating pt registers are 8-bytes on all abis, |
| * but the number of saved fp regs varies for o32/n32 versus n64 abis: |
| */ |
| |
| #ifdef __LP64__ |
| #define SC_FPREGS_SAVED 8 /* all fp regs f24,f25,f26,f27,f28,f29,f30,f31 */ |
| #else |
| #define SC_FPREGS_SAVED 6 /* even fp regs f20,f22,f24,f26,f28,f30 */ |
| #endif |
| |
| #define SC_FPREGS (SC_REGS + SC_REGS_SAVED*REGSZ) /* SC_FPREGS_SAVED*REGSZ_FP bytes */ |
| |
| #define SC_BYTES (SC_FPREGS + SC_FPREGS_SAVED*REGSZ_FP) |
| #define SC_LONGS (SC_BYTES/REGSZ) |
| |
| #ifdef __LP64__ |
| /* SC_LONGS is 22, so _JBLEN should be 22 or larger */ |
| #else |
| /* SC_LONGS is 28, but must also allocate dynamic-roundup filler. |
| so _JBLEN should be 29 or larger */ |
| #endif |
| |
| /* |
| * _setjmp, _longjmp (restoring signal state) |
| * |
| * GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp! |
| * |
| */ |
| |
| FRAMESZ= MKFSIZ(2,6) |
| A1OFF= FRAMESZ-4*REGSZ |
| A0OFF= FRAMESZ-3*REGSZ |
| GPOFF= FRAMESZ-2*REGSZ |
| RAOFF= FRAMESZ-1*REGSZ |
| |
| NON_LEAF(setjmp, FRAMESZ, ra) |
| .mask 0x80000000, RAOFF |
| PTR_SUBU sp, FRAMESZ # allocate stack frame |
| SETUP_GP64(GPOFF, setjmp) |
| SAVE_GP(GPOFF) |
| .set reorder |
| |
| #ifndef __LP64__ |
| addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary |
| li t0, ~7 |
| and a0, t0 |
| #endif |
| |
| REG_S ra, RAOFF(sp) # save state |
| REG_S a0, A0OFF(sp) |
| move a0, zero # get current signal mask |
| jal sigblock |
| REG_L a0, A0OFF(sp) |
| REG_L ra, RAOFF(sp) |
| |
| REG_S v0, SC_MASK(a0) # save sc_mask = sigblock(0) |
| |
| li v0, 0xACEDBADE # sigcontext magic number |
| sw v0, SC_MAGIC(a0) |
| # callee-saved long-sized regs: |
| REG_S ra, SC_REGS+0*REGSZ(a0) |
| REG_S s0, SC_REGS+1*REGSZ(a0) |
| REG_S s1, SC_REGS+2*REGSZ(a0) |
| REG_S s2, SC_REGS+3*REGSZ(a0) |
| REG_S s3, SC_REGS+4*REGSZ(a0) |
| REG_S s4, SC_REGS+5*REGSZ(a0) |
| REG_S s5, SC_REGS+6*REGSZ(a0) |
| REG_S s6, SC_REGS+7*REGSZ(a0) |
| REG_S s7, SC_REGS+8*REGSZ(a0) |
| REG_S s8, SC_REGS+9*REGSZ(a0) |
| REG_L v0, GPOFF(sp) |
| REG_S v0, SC_REGS+10*REGSZ(a0) |
| PTR_ADDU v0, sp, FRAMESZ |
| REG_S v0, SC_REGS+11*REGSZ(a0) |
| |
| cfc1 v0, $31 |
| |
| #ifdef __LP64__ |
| # callee-saved fp regs on mips n64 ABI are $f24..$f31 |
| s.d $f24, SC_FPREGS+0*REGSZ_FP(a0) |
| s.d $f25, SC_FPREGS+1*REGSZ_FP(a0) |
| s.d $f26, SC_FPREGS+2*REGSZ_FP(a0) |
| s.d $f27, SC_FPREGS+3*REGSZ_FP(a0) |
| s.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| s.d $f29, SC_FPREGS+5*REGSZ_FP(a0) |
| s.d $f30, SC_FPREGS+6*REGSZ_FP(a0) |
| s.d $f31, SC_FPREGS+7*REGSZ_FP(a0) |
| #else |
| # callee-saved fp regs on mips o32 ABI are |
| # the even-numbered fp regs $f20,$f22,...$f30 |
| s.d $f20, SC_FPREGS+0*REGSZ_FP(a0) |
| s.d $f22, SC_FPREGS+1*REGSZ_FP(a0) |
| s.d $f24, SC_FPREGS+2*REGSZ_FP(a0) |
| s.d $f26, SC_FPREGS+3*REGSZ_FP(a0) |
| s.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| s.d $f30, SC_FPREGS+5*REGSZ_FP(a0) |
| #endif |
| sw v0, SC_FPSR(a0) |
| move v0, zero |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| j ra |
| END(setjmp) |
| |
| NON_LEAF(longjmp, FRAMESZ, ra) |
| .mask 0x80000000, RAOFF |
| PTR_SUBU sp, FRAMESZ |
| SETUP_GP64(GPOFF, longjmp) |
| SAVE_GP(GPOFF) |
| .set reorder |
| |
| #ifndef __LP64__ |
| addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary |
| li t0, ~7 |
| and a0, t0 |
| #endif |
| |
| REG_S a1, A1OFF(sp) |
| REG_S a0, A0OFF(sp) |
| lw a0, SC_MASK(a0) |
| jal sigsetmask |
| REG_L a0, A0OFF(sp) |
| REG_L a1, A1OFF(sp) |
| |
| lw v0, SC_MAGIC(a0) |
| li t0, 0xACEDBADE |
| bne v0, t0, longjmp_botch # jump if error |
| |
| # callee-saved long-sized regs: |
| REG_L ra, SC_REGS+0*REGSZ(a0) |
| REG_L s0, SC_REGS+1*REGSZ(a0) |
| REG_L s1, SC_REGS+2*REGSZ(a0) |
| REG_L s2, SC_REGS+3*REGSZ(a0) |
| REG_L s3, SC_REGS+4*REGSZ(a0) |
| REG_L s4, SC_REGS+5*REGSZ(a0) |
| REG_L s5, SC_REGS+6*REGSZ(a0) |
| REG_L s6, SC_REGS+7*REGSZ(a0) |
| REG_L s7, SC_REGS+8*REGSZ(a0) |
| REG_L s8, SC_REGS+9*REGSZ(a0) |
| REG_L gp, SC_REGS+10*REGSZ(a0) |
| REG_L sp, SC_REGS+11*REGSZ(a0) |
| |
| lw v0, SC_FPSR(a0) |
| ctc1 v0, $31 |
| #ifdef __LP64__ |
| # callee-saved fp regs on mips n64 ABI are $f24..$f31 |
| l.d $f24, SC_FPREGS+0*REGSZ_FP(a0) |
| l.d $f25, SC_FPREGS+1*REGSZ_FP(a0) |
| l.d $f26, SC_FPREGS+2*REGSZ_FP(a0) |
| l.d $f27, SC_FPREGS+3*REGSZ_FP(a0) |
| l.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| l.d $f29, SC_FPREGS+5*REGSZ_FP(a0) |
| l.d $f30, SC_FPREGS+6*REGSZ_FP(a0) |
| l.d $f31, SC_FPREGS+7*REGSZ_FP(a0) |
| #else |
| # callee-saved fp regs on mips o32 ABI are |
| # the even-numbered fp regs $f20,$f22,...$f30 |
| l.d $f20, SC_FPREGS+0*REGSZ_FP(a0) |
| l.d $f22, SC_FPREGS+1*REGSZ_FP(a0) |
| l.d $f24, SC_FPREGS+2*REGSZ_FP(a0) |
| l.d $f26, SC_FPREGS+3*REGSZ_FP(a0) |
| l.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| l.d $f30, SC_FPREGS+5*REGSZ_FP(a0) |
| #endif |
| bne a1, zero, 1f |
| li a1, 1 # never return 0! |
| 1: |
| move v0, a1 |
| j ra |
| |
| longjmp_botch: |
| jal longjmperror |
| jal abort |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| END(longjmp) |
| |
| |
| /* |
| * _setjmp, _longjmp (not restoring signal state) |
| * |
| * GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp! |
| * |
| */ |
| |
| FRAMESZ= MKFSIZ(0,4) |
| GPOFF= FRAMESZ-2*REGSZ |
| |
| LEAF(_setjmp, FRAMESZ) |
| PTR_SUBU sp, FRAMESZ |
| SETUP_GP64(GPOFF, _setjmp) |
| SAVE_GP(GPOFF) |
| .set reorder |
| |
| #ifndef __LP64__ |
| addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary |
| li t0, ~7 |
| and a0, t0 |
| #endif |
| |
| # SC_MASK is unused here |
| |
| li v0, 0xACEDBADE # sigcontext magic number |
| sw v0, SC_MAGIC(a0) |
| # callee-saved long-sized regs: |
| REG_S ra, SC_REGS+0*REGSZ(a0) |
| REG_S s0, SC_REGS+1*REGSZ(a0) |
| REG_S s1, SC_REGS+2*REGSZ(a0) |
| REG_S s2, SC_REGS+3*REGSZ(a0) |
| REG_S s3, SC_REGS+4*REGSZ(a0) |
| REG_S s4, SC_REGS+5*REGSZ(a0) |
| REG_S s5, SC_REGS+6*REGSZ(a0) |
| REG_S s6, SC_REGS+7*REGSZ(a0) |
| REG_S s7, SC_REGS+8*REGSZ(a0) |
| REG_S s8, SC_REGS+9*REGSZ(a0) |
| REG_L v0, GPOFF(sp) |
| REG_S v0, SC_REGS+10*REGSZ(a0) |
| PTR_ADDU v0, sp, FRAMESZ |
| REG_S v0, SC_REGS+11*REGSZ(a0) |
| |
| cfc1 v0, $31 |
| |
| #ifdef __LP64__ |
| # callee-saved fp regs on mips n64 ABI are $f24..$f31 |
| s.d $f24, SC_FPREGS+0*REGSZ_FP(a0) |
| s.d $f25, SC_FPREGS+1*REGSZ_FP(a0) |
| s.d $f26, SC_FPREGS+2*REGSZ_FP(a0) |
| s.d $f27, SC_FPREGS+3*REGSZ_FP(a0) |
| s.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| s.d $f29, SC_FPREGS+5*REGSZ_FP(a0) |
| s.d $f30, SC_FPREGS+6*REGSZ_FP(a0) |
| s.d $f31, SC_FPREGS+7*REGSZ_FP(a0) |
| #else |
| # callee-saved fp regs on mips o32 ABI are |
| # the even-numbered fp regs $f20,$f22,...$f30 |
| s.d $f20, SC_FPREGS+0*REGSZ_FP(a0) |
| s.d $f22, SC_FPREGS+1*REGSZ_FP(a0) |
| s.d $f24, SC_FPREGS+2*REGSZ_FP(a0) |
| s.d $f26, SC_FPREGS+3*REGSZ_FP(a0) |
| s.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| s.d $f30, SC_FPREGS+5*REGSZ_FP(a0) |
| #endif |
| sw v0, SC_FPSR(a0) |
| move v0, zero |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| j ra |
| END(_setjmp) |
| |
| |
| LEAF(_longjmp, FRAMESZ) |
| PTR_SUBU sp, FRAMESZ |
| SETUP_GP64(GPOFF, _longjmp) |
| SAVE_GP(GPOFF) |
| .set reorder |
| |
| #ifndef __LP64__ |
| addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary |
| li t0, ~7 |
| and a0, t0 |
| #endif |
| |
| # SC_MASK is unused here |
| |
| lw v0, SC_MAGIC(a0) |
| li t0, 0xACEDBADE |
| bne v0, t0, _longjmp_botch # jump if error |
| |
| # callee-saved long-sized regs: |
| REG_L ra, SC_REGS+0*REGSZ(a0) |
| REG_L s0, SC_REGS+1*REGSZ(a0) |
| REG_L s1, SC_REGS+2*REGSZ(a0) |
| REG_L s2, SC_REGS+3*REGSZ(a0) |
| REG_L s3, SC_REGS+4*REGSZ(a0) |
| REG_L s4, SC_REGS+5*REGSZ(a0) |
| REG_L s5, SC_REGS+6*REGSZ(a0) |
| REG_L s6, SC_REGS+7*REGSZ(a0) |
| REG_L s7, SC_REGS+8*REGSZ(a0) |
| REG_L s8, SC_REGS+9*REGSZ(a0) |
| REG_L gp, SC_REGS+10*REGSZ(a0) |
| REG_L sp, SC_REGS+11*REGSZ(a0) |
| |
| lw v0, SC_FPSR(a0) |
| ctc1 v0, $31 |
| #ifdef __LP64__ |
| # callee-saved fp regs on mips n64 ABI are $f24..$f31 |
| l.d $f24, SC_FPREGS+0*REGSZ_FP(a0) |
| l.d $f25, SC_FPREGS+1*REGSZ_FP(a0) |
| l.d $f26, SC_FPREGS+2*REGSZ_FP(a0) |
| l.d $f27, SC_FPREGS+3*REGSZ_FP(a0) |
| l.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| l.d $f29, SC_FPREGS+5*REGSZ_FP(a0) |
| l.d $f30, SC_FPREGS+6*REGSZ_FP(a0) |
| l.d $f31, SC_FPREGS+7*REGSZ_FP(a0) |
| #else |
| # callee-saved fp regs on mips o32 ABI are |
| # the even-numbered fp regs $f20,$f22,...$f30 |
| l.d $f20, SC_FPREGS+0*REGSZ_FP(a0) |
| l.d $f22, SC_FPREGS+1*REGSZ_FP(a0) |
| l.d $f24, SC_FPREGS+2*REGSZ_FP(a0) |
| l.d $f26, SC_FPREGS+3*REGSZ_FP(a0) |
| l.d $f28, SC_FPREGS+4*REGSZ_FP(a0) |
| l.d $f30, SC_FPREGS+5*REGSZ_FP(a0) |
| #endif |
| bne a1, zero, 1f |
| li a1, 1 # never return 0! |
| 1: |
| move v0, a1 |
| j ra |
| |
| _longjmp_botch: |
| jal longjmperror |
| jal abort |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| END(_longjmp) |
| |
| /* |
| * trampolines for sigsetjmp and siglongjmp save and restore mask. |
| * |
| */ |
| FRAMESZ= MKFSIZ(1,1) |
| GPOFF= FRAMESZ-2*REGSZ |
| |
| LEAF(sigsetjmp, FRAMESZ) |
| PTR_SUBU sp, FRAMESZ |
| SETUP_GP64(GPOFF, sigsetjmp) |
| .set reorder |
| sw a1, _JBLEN*REGSZ(a0) # save "savemask" |
| bne a1, 0x0, 1f # do saving of signal mask? |
| LA t9, _setjmp |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| |
| 1: LA t9, setjmp |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| END(sigsetjmp) |
| |
| LEAF(siglongjmp, FRAMESZ) |
| PTR_SUBU sp, FRAMESZ |
| SETUP_GP64(GPOFF, siglongjmp) |
| .set reorder |
| lw t0, _JBLEN*REGSZ(a0) # get "savemask" |
| bne t0, 0x0, 1f # restore signal mask? |
| LA t9, _longjmp |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| 1: |
| LA t9, longjmp |
| RESTORE_GP64 |
| PTR_ADDU sp, FRAMESZ |
| jr t9 |
| END(siglongjmp) |