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https://github.com/c64scene-ar/llvm-6502.git
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Remove runtime library in favor of users linking against real libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1853 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
parent
7b83b1db25
commit
2dc78088b7
@ -5,17 +5,3 @@ USEDLIBS = bcreader bcwriter vmcore asmwriter analysis support \
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TOOLLINKOPTS = -ldl
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include $(LEVEL)/Makefile.common
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all :: $(LEVEL)/tools/Debug/RuntimeLib.bc
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Debug/RuntimeLib.c: RuntimeLib.lc
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cp -f $< $@
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Debug/RuntimeLib.ll: Debug/RuntimeLib.c
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@-rm $@
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/home/vadve/lattner/cvs/gcc_install/bin/gcc $< -S -o $@
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$(LEVEL)/tools/Debug/RuntimeLib.bc: Debug/RuntimeLib.ll
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../Debug/gccas $< -o $@
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@ -5,17 +5,3 @@ USEDLIBS = bcreader bcwriter vmcore asmwriter analysis support \
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TOOLLINKOPTS = -ldl
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include $(LEVEL)/Makefile.common
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all :: $(LEVEL)/tools/Debug/RuntimeLib.bc
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Debug/RuntimeLib.c: RuntimeLib.lc
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cp -f $< $@
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Debug/RuntimeLib.ll: Debug/RuntimeLib.c
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@-rm $@
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/home/vadve/lattner/cvs/gcc_install/bin/gcc $< -S -o $@
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$(LEVEL)/tools/Debug/RuntimeLib.bc: Debug/RuntimeLib.ll
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../Debug/gccas $< -o $@
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@ -1,270 +0,0 @@
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//===-- RuntimeLib.lc - LLVM Standard C Runtime Library -----------*- C -*-===//
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//
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// This file contains definitions of C functions that are useful to get LLVM
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// programs up and running. This library of functions is automatically linked
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// into programs loaded into LLI.
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//
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// This file is compiled by the LLVM port of GCC to get LLVM code.
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//
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// A lot of this code is ripped gratuitously from glibc and libiberty.
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//
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//===----------------------------------------------------------------------===//
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#include <stdlib.h>
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// Prototypes for functions exported by LLI directly.
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void exit(int Code);
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int putchar(int);
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void *malloc(unsigned);
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void free(void *);
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#define isspace(x) ((x) == ' ' || (x) == '\t' || (x) == '\n')
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#define isdigit(x) ((x) >= '0' && (x) <= '9')
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#define isupper(x) ((x) >= 'A' && (x) <= 'Z')
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#define islower(x) ((x) >= 'a' && (x) <= 'z')
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#define isalpha(x) (isupper(x) || islower(x))
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// The puts() function writes the string pointed to by s, followed by a
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// NEWLINE character, to the standard output stream stdout. On success the
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// number of characters written is returned; otherwise they return EOF.
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//
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int puts(const char *S) {
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const char *Str = S;
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while (*Str) putchar(*Str++);
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putchar('\n');
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return Str+1-S;
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}
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#ifndef ULONG_MAX
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#define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF */
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#endif
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#ifndef LONG_MAX
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#define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF */
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#endif
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#ifndef LONG_MIN
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#define LONG_MIN ((long)(~LONG_MAX)) /* 0x80000000 */
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#endif
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/*
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* Convert a string to a long integer.
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*
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* Ignores `locale' stuff. Assumes that the upper and lower case
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* alphabets and digits are each contiguous.
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*/
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long strtol(const char *nptr, char **endptr, int base) {
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register const char *s = nptr;
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register unsigned long acc;
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register int c;
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register unsigned long cutoff;
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register int neg = 0, any, cutlim;
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/*
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* Skip white space and pick up leading +/- sign if any.
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* If base is 0, allow 0x for hex and 0 for octal, else
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* assume decimal; if base is already 16, allow 0x.
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*/
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do {
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c = *s++;
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} while (isspace(c));
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if (c == '-') {
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neg = 1;
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c = *s++;
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} else if (c == '+')
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c = *s++;
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if ((base == 0 || base == 16) &&
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c == '0' && (*s == 'x' || *s == 'X')) {
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c = s[1];
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s += 2;
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base = 16;
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}
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if (base == 0)
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base = c == '0' ? 8 : 10;
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/*
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* Compute the cutoff value between legal numbers and illegal
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* numbers. That is the largest legal value, divided by the
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* base. An input number that is greater than this value, if
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* followed by a legal input character, is too big. One that
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* is equal to this value may be valid or not; the limit
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* between valid and invalid numbers is then based on the last
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* digit. For instance, if the range for longs is
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* [-2147483648..2147483647] and the input base is 10,
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* cutoff will be set to 214748364 and cutlim to either
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* 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
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* a value > 214748364, or equal but the next digit is > 7 (or 8),
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* the number is too big, and we will return a range error.
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*
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* Set any if any `digits' consumed; make it negative to indicate
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* overflow.
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*/
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cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX;
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cutlim = cutoff % (unsigned long)base;
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cutoff /= (unsigned long)base;
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for (acc = 0, any = 0;; c = *s++) {
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if (isdigit(c))
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c -= '0';
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else if (isalpha(c))
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c -= isupper(c) ? 'A' - 10 : 'a' - 10;
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else
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break;
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if (c >= base)
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break;
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if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim)
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any = -1;
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else {
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any = 1;
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acc *= base;
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acc += c;
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}
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}
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if (any < 0) {
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acc = neg ? LONG_MIN : LONG_MAX;
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} else if (neg)
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acc = -acc;
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if (endptr != 0)
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*endptr = (char *) (any ? s - 1 : nptr);
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return (acc);
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}
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/* Convert a string to an int. */
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int atoi(const char *nptr) {
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return (int)strtol(nptr, 0, 10);
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}
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/* Convert a string to a long int. */
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long int atol(const char *nptr) {
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return strtol(nptr, 0, 10);
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}
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unsigned strlen(const char *Str) {
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int Count = 0;
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while (*Str) { ++Count; ++Str; }
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return Count;
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}
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char *strdup(const char *str) {
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int Len = strlen(str);
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char *Result = (char*)malloc((Len+1)*sizeof(char));
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memcpy(Result, str, Len+1);
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return Result;
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}
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/* Compare S1 and S2, returning less than, equal to or
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greater than zero if S1 is lexicographically less than,
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equal to or greater than S2. */
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int strcmp (const char *p1, const char *p2) {
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register const unsigned char *s1 = (const unsigned char *) p1;
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register const unsigned char *s2 = (const unsigned char *) p2;
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unsigned char c1, c2;
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do
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{
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c1 = (unsigned char) *s1++;
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c2 = (unsigned char) *s2++;
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if (c1 == '\0')
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return c1 - c2;
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}
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while (c1 == c2);
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return c1 - c2;
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}
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//===----------------------------------------------------------------------===//
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// memory stuff...
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//===----------------------------------------------------------------------===//
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// http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sysdeps/generic/?cvsroot=glibc
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typedef unsigned int op_t;
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#define OPSIZ 4
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void *memset (void *dstpp, int c, size_t len) {
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long long int dstp = (long long int) dstpp;
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if (len >= 8)
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{
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size_t xlen;
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op_t cccc;
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cccc = (unsigned char) c;
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cccc |= cccc << 8;
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cccc |= cccc << 16;
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if (OPSIZ > 4)
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/* Do the shift in two steps to avoid warning if long has 32 bits. */
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cccc |= (cccc << 16) << 16;
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/* There are at least some bytes to set.
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No need to test for LEN == 0 in this alignment loop. */
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while (dstp % OPSIZ != 0)
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{
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((unsigned char *) dstp)[0] = c;
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dstp += 1;
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len -= 1;
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}
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/* Write 8 `op_t' per iteration until less than 8 `op_t' remain. */
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xlen = len / (OPSIZ * 8);
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while (xlen > 0)
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{
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((op_t *) dstp)[0] = cccc;
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((op_t *) dstp)[1] = cccc;
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((op_t *) dstp)[2] = cccc;
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((op_t *) dstp)[3] = cccc;
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((op_t *) dstp)[4] = cccc;
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((op_t *) dstp)[5] = cccc;
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((op_t *) dstp)[6] = cccc;
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((op_t *) dstp)[7] = cccc;
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dstp += 8 * OPSIZ;
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xlen -= 1;
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}
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len %= OPSIZ * 8;
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/* Write 1 `op_t' per iteration until less than OPSIZ bytes remain. */
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xlen = len / OPSIZ;
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while (xlen > 0)
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{
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((op_t *) dstp)[0] = cccc;
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dstp += OPSIZ;
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xlen -= 1;
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}
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len %= OPSIZ;
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}
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/* Write the last few bytes. */
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while (len > 0)
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{
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((unsigned char *) dstp)[0] = c;
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dstp += 1;
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len -= 1;
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}
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return dstpp;
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}
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void *memcpy(void *dstpp, const void *srcpp, size_t len) {
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char *dstp = (char*)dstpp;
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char *srcp = (char*) srcpp;
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unsigned i;
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for (i = 0; i < len; ++i)
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dstp[i] = srcp[i];
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return dstpp;
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}
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void *calloc(size_t nelem, size_t elsize) {
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void *Result = malloc(nelem*elsize);
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return memset(Result, 0, nelem*elsize);
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}
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//===----------------------------------------------------------------------===//
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// libm stuff...
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//===----------------------------------------------------------------------===//
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