diff options
author | Eric Andersen <andersen@codepoet.org> | 2000-07-05 19:23:36 +0000 |
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committer | Eric Andersen <andersen@codepoet.org> | 2000-07-05 19:23:36 +0000 |
commit | 9281d180d13057917f618c35ef7433d2e4d4dd86 (patch) | |
tree | b497158acdc1a81b93b938a2f76376c88bc7799b /libc/sysdeps/linux/i386 | |
parent | 775622914fa0a2814c705d25b1a3929002c5c785 (diff) |
Completely rearchitected the sysdeps directory.
-Erik
Diffstat (limited to 'libc/sysdeps/linux/i386')
-rw-r--r-- | libc/sysdeps/linux/i386/Makefile | 29 | ||||
-rw-r--r-- | libc/sysdeps/linux/i386/setjmp.S | 88 |
2 files changed, 117 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/i386/Makefile b/libc/sysdeps/linux/i386/Makefile new file mode 100644 index 000000000..bfb8d82ff --- /dev/null +++ b/libc/sysdeps/linux/i386/Makefile @@ -0,0 +1,29 @@ +# Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk> +# This file is part of the Linux-8086 C library and is distributed +# under the GNU Library General Public License. + +TOPDIR=../../../ +include $(TOPDIR)Rules.make + +CFLAGS+= -D_GCC_LIMITS_H_ + +LIBC=$(TOPDIR)libc.a + +.S.s: + $(CC) $(CFLAGS) -D__ASSEMBLY__ -traditional -E -o $*.s $< +.S.o: + $(CC) $(CFLAGS) -c -o $*.o $< + +include makefile.objs + +all: $(LIBC) + +$(LIBC): $(OBJ) + $(AR) $(ARFLAGS) $@ $(OBJ) + +transfer: + -@rm -f ../include/stdio.h + cp -p stdio.h ../include/. + +clean: + rm -f *.o diff --git a/libc/sysdeps/linux/i386/setjmp.S b/libc/sysdeps/linux/i386/setjmp.S new file mode 100644 index 000000000..3ff05425f --- /dev/null +++ b/libc/sysdeps/linux/i386/setjmp.S @@ -0,0 +1,88 @@ +/* These are predefined by new versions of GNU cpp. */ + +#ifndef __USER_LABEL_PREFIX__ +#define __USER_LABEL_PREFIX__ _ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ +#endif + +/* ANSI concatenation macros. */ + +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* Use the right prefix for global labels. */ + +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) + +/* Use the right prefix for registers. */ + +#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) + +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define fp REG (fp) +#define sp REG (sp) + +.global SYM (setjmp) +.global SYM (longjmp) + +SYM (setjmp): + moveal sp@(4),a0 + movel sp@(0),a0@(12) + movel sp,a0@(8) + moveml d2-d7/a2-a6,a0@(20) + clrl d0 + rts + +SYM (longjmp): + moveal sp@(4),a0 + movel sp@(8),d0 + bne 1f + movel #1,d0 +1: + moveml a0@(20),d2-d7/a2-a6 + moveal a0@(8),sp + movel a0@(12),sp@ + rts + +#ifdef M68881 +.global SYM (setjmp_68881) +.global SYM (longjmp_68881) + +SYM (setjmp_68881): + moveal sp@(4),a0 + movel sp@(0),a0@(12) + movel sp,a0@(8) + moveml d2-d7/a2-a6,a0@(20) + fmovemx fp2-fp7,a0@(64) + clrl d0 + rts + +SYM (longjmp_68881): + moveal sp@(4),a0 + fmovemx a0@(64),fp2-fp7 + movel sp@(8),d0 + bne 1f + movel #1,d0 +1: + moveml a0@(20),d2-d7/a2-a6 + moveal a0@(8),sp + movel a0@(12),sp@ + rts +#endif |