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-rw-r--r--libc/sysdeps/linux/powerpc/classic/__longjmp.S84
-rw-r--r--libc/sysdeps/linux/powerpc/classic/fpu_control.h71
-rw-r--r--libc/sysdeps/linux/powerpc/classic/setjmp.S82
3 files changed, 237 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/powerpc/classic/__longjmp.S b/libc/sysdeps/linux/powerpc/classic/__longjmp.S
new file mode 100644
index 000000000..83f094c15
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/classic/__longjmp.S
@@ -0,0 +1,84 @@
+/* longjmp for PowerPC.
+ Copyright (C) 1995, 1996, 1997, 1999, 2000 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 <features.h>
+#include "ppc_asm.h"
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+
+
+#if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
+#define FP(x...) x
+#else
+#define FP(x...)
+#endif
+
+.globl __longjmp;
+.type __longjmp, @function;
+.align 2;
+
+__longjmp:
+ lwz r1,(JB_GPR1*4)(r3)
+ lwz r2,(JB_GPR2*4)(r3)
+ lwz r0,(JB_LR*4)(r3)
+ lwz r14,((JB_GPRS+0)*4)(r3)
+FP( lfd fp14,((JB_FPRS+0*2)*4)(r3))
+ lwz r15,((JB_GPRS+1)*4)(r3)
+FP( lfd fp15,((JB_FPRS+1*2)*4)(r3))
+ lwz r16,((JB_GPRS+2)*4)(r3)
+FP( lfd fp16,((JB_FPRS+2*2)*4)(r3))
+ lwz r17,((JB_GPRS+3)*4)(r3)
+FP( lfd fp17,((JB_FPRS+3*2)*4)(r3))
+ lwz r18,((JB_GPRS+4)*4)(r3)
+FP( lfd fp18,((JB_FPRS+4*2)*4)(r3))
+ lwz r19,((JB_GPRS+5)*4)(r3)
+FP( lfd fp19,((JB_FPRS+5*2)*4)(r3))
+ lwz r20,((JB_GPRS+6)*4)(r3)
+FP( lfd fp20,((JB_FPRS+6*2)*4)(r3))
+ mtlr r0
+ lwz r21,((JB_GPRS+7)*4)(r3)
+FP( lfd fp21,((JB_FPRS+7*2)*4)(r3))
+ lwz r22,((JB_GPRS+8)*4)(r3)
+FP( lfd fp22,((JB_FPRS+8*2)*4)(r3))
+ lwz r0,(JB_CR*4)(r3)
+ lwz r23,((JB_GPRS+9)*4)(r3)
+FP( lfd fp23,((JB_FPRS+9*2)*4)(r3))
+ lwz r24,((JB_GPRS+10)*4)(r3)
+FP( lfd fp24,((JB_FPRS+10*2)*4)(r3))
+ lwz r25,((JB_GPRS+11)*4)(r3)
+FP( lfd fp25,((JB_FPRS+11*2)*4)(r3))
+ mtcrf 0xFF,r0
+ lwz r26,((JB_GPRS+12)*4)(r3)
+FP( lfd fp26,((JB_FPRS+12*2)*4)(r3))
+ lwz r27,((JB_GPRS+13)*4)(r3)
+FP( lfd fp27,((JB_FPRS+13*2)*4)(r3))
+ lwz r28,((JB_GPRS+14)*4)(r3)
+FP( lfd fp28,((JB_FPRS+14*2)*4)(r3))
+ lwz r29,((JB_GPRS+15)*4)(r3)
+FP( lfd fp29,((JB_FPRS+15*2)*4)(r3))
+ lwz r30,((JB_GPRS+16)*4)(r3)
+FP( lfd fp30,((JB_FPRS+16*2)*4)(r3))
+ lwz r31,((JB_GPRS+17)*4)(r3)
+FP( lfd fp31,((JB_FPRS+17*2)*4)(r3))
+ mr r3,r4
+ blr
+.size __longjmp,.-__longjmp
+
+libc_hidden_def(__longjmp)
diff --git a/libc/sysdeps/linux/powerpc/classic/fpu_control.h b/libc/sysdeps/linux/powerpc/classic/fpu_control.h
new file mode 100644
index 000000000..2df9ba0e7
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/classic/fpu_control.h
@@ -0,0 +1,71 @@
+/* FPU control word definitions. PowerPC version.
+ Copyright (C) 1996, 1997, 1998 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. */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H
+
+/* rounding control */
+#define _FPU_RC_NEAREST 0x00 /* RECOMMENDED */
+#define _FPU_RC_DOWN 0x03
+#define _FPU_RC_UP 0x02
+#define _FPU_RC_ZERO 0x01
+
+#define _FPU_MASK_NI 0x04 /* non-ieee mode */
+
+/* masking of interrupts */
+#define _FPU_MASK_ZM 0x10 /* zero divide */
+#define _FPU_MASK_OM 0x40 /* overflow */
+#define _FPU_MASK_UM 0x20 /* underflow */
+#define _FPU_MASK_XM 0x08 /* inexact */
+#define _FPU_MASK_IM 0x80 /* invalid operation */
+
+#define _FPU_RESERVED 0xffffff00 /* These bits are reserved are not changed. */
+
+/* The fdlibm code requires no interrupts for exceptions. */
+#define _FPU_DEFAULT 0x00000000 /* Default value. */
+
+/* IEEE: same as above, but (some) exceptions;
+ we leave the 'inexact' exception off.
+ */
+#define _FPU_IEEE 0x000000f0
+
+/* Type of the control word. */
+typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__)));
+
+/* Macros for accessing the hardware control word. */
+#define _FPU_GETCW(__cw) ( { \
+ union { double d; fpu_control_t cw[2]; } \
+ tmp __attribute__ ((__aligned__(8))); \
+ __asm__ ("mffs 0; stfd%U0 0,%0" : "=m" (tmp.d) : : "fr0"); \
+ (__cw)=tmp.cw[1]; \
+ tmp.cw[1]; } )
+#define _FPU_SETCW(__cw) { \
+ union { double d; fpu_control_t cw[2]; } \
+ tmp __attribute__ ((__aligned__(8))); \
+ tmp.cw[0] = 0xFFF80000; /* More-or-less arbitrary; this is a QNaN. */ \
+ tmp.cw[1] = __cw; \
+ __asm__ ("lfd%U0 0,%0; mtfsf 255,0" : : "m" (tmp.d) : "fr0"); \
+}
+
+#if 0
+/* Default control word set at startup. */
+extern fpu_control_t __fpu_control;
+#endif
+
+#endif /* _FPU_CONTROL_H */
diff --git a/libc/sysdeps/linux/powerpc/classic/setjmp.S b/libc/sysdeps/linux/powerpc/classic/setjmp.S
new file mode 100644
index 000000000..3bdf6cbfe
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/classic/setjmp.S
@@ -0,0 +1,82 @@
+/* setjmp for PowerPC.
+ Copyright (C) 1995, 1996, 1997, 1999, 2000 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 <features.h>
+#include "ppc_asm.h"
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+
+#if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
+#define FP(x...) x
+#else
+#define FP(x...)
+#endif
+
+.globl __sigsetjmp;
+.type __sigsetjmp, @function;
+.align 2;
+
+__sigsetjmp:
+ stw r1,(JB_GPR1*4)(3)
+ mflr r0
+ stw r2,(JB_GPR2*4)(3)
+ stw r14,((JB_GPRS+0)*4)(3)
+FP( stfd fp14,((JB_FPRS+0*2)*4)(3))
+ stw r0,(JB_LR*4)(3)
+ stw r15,((JB_GPRS+1)*4)(3)
+FP( stfd fp15,((JB_FPRS+1*2)*4)(3))
+ mfcr r0
+ stw r16,((JB_GPRS+2)*4)(3)
+FP( stfd fp16,((JB_FPRS+2*2)*4)(3))
+ stw r0,(JB_CR*4)(3)
+ stw r17,((JB_GPRS+3)*4)(3)
+FP( stfd fp17,((JB_FPRS+3*2)*4)(3))
+ stw r18,((JB_GPRS+4)*4)(3)
+FP( stfd fp18,((JB_FPRS+4*2)*4)(3))
+ stw r19,((JB_GPRS+5)*4)(3)
+FP( stfd fp19,((JB_FPRS+5*2)*4)(3))
+ stw r20,((JB_GPRS+6)*4)(3)
+FP( stfd fp20,((JB_FPRS+6*2)*4)(3))
+ stw r21,((JB_GPRS+7)*4)(3)
+FP( stfd fp21,((JB_FPRS+7*2)*4)(3))
+ stw r22,((JB_GPRS+8)*4)(3)
+FP( stfd fp22,((JB_FPRS+8*2)*4)(3))
+ stw r23,((JB_GPRS+9)*4)(3)
+FP( stfd fp23,((JB_FPRS+9*2)*4)(3))
+ stw r24,((JB_GPRS+10)*4)(3)
+FP( stfd fp24,((JB_FPRS+10*2)*4)(3))
+ stw r25,((JB_GPRS+11)*4)(3)
+FP( stfd fp25,((JB_FPRS+11*2)*4)(3))
+ stw r26,((JB_GPRS+12)*4)(3)
+FP( stfd fp26,((JB_FPRS+12*2)*4)(3))
+ stw r27,((JB_GPRS+13)*4)(3)
+FP( stfd fp27,((JB_FPRS+13*2)*4)(3))
+ stw r28,((JB_GPRS+14)*4)(3)
+FP( stfd fp28,((JB_FPRS+14*2)*4)(3))
+ stw r29,((JB_GPRS+15)*4)(3)
+FP( stfd fp29,((JB_FPRS+15*2)*4)(3))
+ stw r30,((JB_GPRS+16)*4)(3)
+FP( stfd fp30,((JB_FPRS+16*2)*4)(3))
+ stw r31,((JB_GPRS+17)*4)(3)
+FP( stfd fp31,((JB_FPRS+17*2)*4)(3))
+
+ b __sigjmp_save@local
+
+.size __sigsetjmp,.-__sigsetjmp
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 21:40:37 +0000