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* [newlib-cygwin] newlib: drop unused xscale subdir
@ 2022-02-09 0:05 Michael Frysinger
0 siblings, 0 replies; only message in thread
From: Michael Frysinger @ 2022-02-09 0:05 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=8fff0aac0ac4c21569cff1204c5085ff501cebe6
commit 8fff0aac0ac4c21569cff1204c5085ff501cebe6
Author: Mike Frysinger <vapier@gentoo.org>
Date: Mon Feb 7 05:19:36 2022 -0500
newlib: drop unused xscale subdir
This target was deleted in 2011 in 25fa7e5ad63d97d00deef1c9eddb346d11,
but this directory was missed. Punt it too.
Diff:
---
newlib/libc/machine/xscale/Makefile.am | 12 -
newlib/libc/machine/xscale/Makefile.in | 598 ---------------------------
newlib/libc/machine/xscale/machine/profile.h | 88 ----
newlib/libc/machine/xscale/memchr.c | 102 -----
newlib/libc/machine/xscale/memcmp.c | 112 -----
newlib/libc/machine/xscale/memcpy.c | 103 -----
newlib/libc/machine/xscale/memmove.c | 122 ------
newlib/libc/machine/xscale/memset.c | 91 ----
newlib/libc/machine/xscale/setjmp.S | 137 ------
newlib/libc/machine/xscale/strchr.c | 73 ----
newlib/libc/machine/xscale/strcmp.c | 107 -----
newlib/libc/machine/xscale/strcpy.c | 62 ---
newlib/libc/machine/xscale/strlen.c | 100 -----
newlib/libc/machine/xscale/xscale.h | 31 --
14 files changed, 1738 deletions(-)
diff --git a/newlib/libc/machine/xscale/Makefile.am b/newlib/libc/machine/xscale/Makefile.am
deleted file mode 100644
index 913d162d4..000000000
--- a/newlib/libc/machine/xscale/Makefile.am
+++ /dev/null
@@ -1,12 +0,0 @@
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diff --git a/newlib/libc/machine/xscale/Makefile.in b/newlib/libc/machine/xscale/Makefile.in
deleted file mode 100644
index ef68dae0f..000000000
--- a/newlib/libc/machine/xscale/Makefile.in
+++ /dev/null
@@ -1,598 +0,0 @@
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-
-ID: $(am__tagged_files)
- $(am__define_uniq_tagged_files); mkid -fID $$unique
-tags: tags-am
-TAGS: tags
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-tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
- set x; \
- here=`pwd`; \
- $(am__define_uniq_tagged_files); \
- shift; \
- if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
- test -n "$$unique" || unique=$$empty_fix; \
- if test $$# -gt 0; then \
- $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
- "$$@" $$unique; \
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- $$unique
-
-GTAGS:
- here=`$(am__cd) $(top_builddir) && pwd` \
- && $(am__cd) $(top_srcdir) \
- && gtags -i $(GTAGS_ARGS) "$$here"
-cscope: cscope.files
- test ! -s cscope.files \
- || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i cscope.files $(CSCOPE_ARGS)
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-cscope.files: clean-cscope cscopelist
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- list='$(am__tagged_files)'; \
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- [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
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- esac; \
- for i in $$list; do \
- if test -f "$$i"; then \
- echo "$(subdir)/$$i"; \
- else \
- echo "$$sdir/$$i"; \
- fi; \
- done >> $(top_builddir)/cscope.files
-
-distclean-tags:
- -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
- -rm -f cscope.out cscope.in.out cscope.po.out cscope.files
-check-am: all-am
-check: check-am
-all-am: Makefile $(LIBRARIES)
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- $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
- install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
- install; \
- else \
- $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
- install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
- "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
- fi
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-
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- -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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-.PRECIOUS: Makefile
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-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/newlib/libc/machine/xscale/machine/profile.h b/newlib/libc/machine/xscale/machine/profile.h
deleted file mode 100644
index 9a68cc86b..000000000
--- a/newlib/libc/machine/xscale/machine/profile.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/* profile.h
-
- Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
-
- Permission to use, copy, modify, and distribute this software
- is freely granted, provided that this notice is preserved. */
-
-#ifndef __XSCALE_PROFILE_H__
-#define __XSCALE_PROFILE_H__
-
-/* FIXME:
- We need to create a string version of the CPP predefined
- __USER_LABEL_PREFIX__ macro. Ideally we would like to
- so do something like:
-
- #if __USER_LABEL_PREFIX__ == _
-
- but this fails for arm-elf targets because although
- __USER_LABEL__PREFIX__ is defined, it is not defined to
- a specific value (even 0) and so the above test fails
- with:
-
- operator '==' has no left operand
-
- Instead we have to test the CPP predefined __ELF__ and
- rely upon the *assumption* that ELF targets will not use
- an underscore prefix and that COFF targets will. */
-
-#ifdef __ELF__
-#define FOO ""
-#else
-#define FOO "_"
-#endif
-
-#define _MCOUNT_DECL(frompc, selfpc) \
-void __attribute__ ((__no_instrument_function__)) \
-mcount_internal (frompc, selfpc)
-
-/* mcount_internal expects two arguments
- r0 frompc (return address for function that call function that calls mcount)
- r1 selfpc (return address for function that called mcount)
-
- The frompc is extracted from the stack frames. If the code does not
- generate stack frames, then mcount cannot extract this
- information. Thus, the -fomit-frame-pointer optimization cannot be
- used if a call graph information is required.
-
- Due to optimizations mcount doesn't set up a new fp. mcount has the fp
- of the calling function.
-
- r0 frompc is from the current frame
- r1 selfpc can be obtained directly from lr. */
-
-#ifdef __thumb__
-#define MCOUNT \
-void __attribute__ ((__naked__)) \
- __attribute__ ((__no_instrument_function__)) \
-mcount (void) \
-{ \
- __asm__("push {r0, r1, r2, r3, lr};" \
- "add r0, r7, #0;" \
- "beq 1f;" \
- "sub r0, r0, #4;" \
- "ldr r0, [r0];" \
- "1: mov r1, lr;" \
- "bl " FOO "mcount_internal ;" \
- "pop {r0, r1, r2, r3, pc};" \
- ); \
-}
-#else
-#define MCOUNT \
-void __attribute__ ((__naked__)) \
- __attribute__ ((__no_instrument_function__)) \
-mcount (void) \
-{ \
- __asm__("stmdb sp!, {r0, r1, r2, r3, lr};" \
- "movs r0, fp;" \
- "ldrne r0, [r0, #-4];" \
- "mov r1, lr;" \
- "bl " FOO "mcount_internal ;" \
- "ldmia sp!, {r0, r1, r2, r3, pc};" \
- ); \
-}
-#endif
-
-#define FUNCTION_ALIGNMENT 2
-
-#endif /* !__XSCALE_PROFILE_H__ */
diff --git a/newlib/libc/machine/xscale/memchr.c b/newlib/libc/machine/xscale/memchr.c
deleted file mode 100644
index 9bf18268b..000000000
--- a/newlib/libc/machine/xscale/memchr.c
+++ /dev/null
@@ -1,102 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/memchr.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-void *
-memchr (const void *start, int c, size_t len)
-{
- const char *str = start;
-
- if (len == 0)
- return 0;
-
- asm (PRELOADSTR ("%0") : : "r" (start));
-
- c &= 0xff;
-
-#ifndef __OPTIMIZE_SIZE__
- /* Skip unaligned part. */
- if ((long)str & 3)
- {
- str--;
- do
- {
- if (*++str == c)
- return (void *)str;
- }
- while (((long)str & 3) != 0 && --len > 0);
- }
-
- if (len > 3)
- {
- unsigned int c2 = c + (c << 8);
- c2 += c2 << 16;
-
- /* Load two constants:
- R7 = 0xfefefeff [ == ~(0x80808080 << 1) ]
- R6 = 0x80808080 */
-
- asm (
- "mov r6, #0x80\n\
- add r6, r6, #0x8000\n\
- add r6, r6, r6, lsl #16\n\
- mvn r7, r6, lsl #1\n\
-\n\
-0:\n\
- cmp %1, #0x7\n\
- bls 1f\n\
-\n\
- ldmia %0!, { r3, r9 }\n\
-" PRELOADSTR ("%0") "\n\
- sub %1, %1, #8\n\
- eor r3, r3, %2\n\
- eor r9, r9, %2\n\
- add r2, r3, r7\n\
- add r8, r9, r7\n\
- bic r2, r2, r3\n\
- bic r8, r8, r9\n\
- and r1, r2, r6\n\
- and r9, r8, r6\n\
- orrs r1, r1, r9\n\
- beq 0b\n\
-\n\
- add %1, %1, #8\n\
- sub %0, %0, #8\n\
-1:\n\
- cmp %1, #0x3\n\
- bls 2f\n\
-\n\
- ldr r3, [%0], #4\n\
-" PRELOADSTR ("%0") "\n\
- sub %1, %1, #4\n\
- eor r3, r3, %2\n\
- add r2, r3, r7\n\
- bic r2, r2, r3\n\
- ands r1, r2, r6\n\
- beq 1b\n\
-\n\
- sub %0, %0, #4\n\
- add %1, %1, #4\n\
-2:\n\
-"
- : "=&r" (str), "=&r" (len)
- : "r" (c2), "0" (str), "1" (len)
- : "r1", "r2", "r3", "r6", "r7", "r8", "r9", "cc");
- }
-#endif
-
- while (len-- > 0)
- {
- if (*str == c)
- return (void *)str;
- str++;
- }
-
- return 0;
-}
-#endif
diff --git a/newlib/libc/machine/xscale/memcmp.c b/newlib/libc/machine/xscale/memcmp.c
deleted file mode 100644
index 1eba4b8dd..000000000
--- a/newlib/libc/machine/xscale/memcmp.c
+++ /dev/null
@@ -1,112 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/memcmp.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-int
-memcmp (const void * s1, const void * s2, size_t len)
-{
- int result;
- asm (
-#ifndef __OPTIMIZE_SIZE__
-"\n\
- cmp %2, #0x3 @ Is the length a multiple of four ?\n\
- bls 6f @ no = goto SLOW CHECK\n\
- and r2, %0, #0x3 @ get alignment of first pointer\n\
- and r3, %1, #0x3 @ get alignment of second pointer\n\
- cmp r2, r3 @ Do the two pointers share the same alignment ?\n\
- bne 6f @ no = goto SLOW CHECK\n\
- mov lr, %0 @ copy first pointer into LR\n\
- mov r4, %1 @ copy second pointer into R4\n\
- cmp r2, #0x0 @ Are we comparing word aligned pointers ?\n\
- beq 3f @ yes = goto START WORD CHECK LOOP\n\
- b 1f @ jump to LOOP TEST\n\
-0: @ LOOP START\n\
- ldrb r2, [lr], #1 @ load byte from LR, post inc.\n\
-" PRELOADSTR("lr") " @ preload\n\
- ldrb r3, [r4], #1 @ load byte from R4, post inc.\n\
-" PRELOADSTR("r4") " @ preload\n\
- cmp r2, r3 @ are the two bytes the same ?\n\
- bne 5f @ no = goto EXIT\n\
- tst lr, #0x3 @ has the LR become word aligned ?\n\
- bne 1f @ no = skip the next test\n\
- cmp %2, #4 @ is the count >= 4 ?\n\
- bhs 3f @ yes = goto START WORD CHECK LOOP\n\
-1: @ LOOP TEST\n\
- sub %2, %2, #1 @ decrement count by one\n\
- cmn %2, #0x1 @ has the count reached -1 ?\n\
- bne 0b @ no = loop back to LOOP START\n\
- b 4f @ goto PASS END\n\
-\n\
-0: @ ??\n\
- cmp %2, #0x7 @ Is the count a multiple of 8 ?\n\
- bls 3f @ no = goto ???\n\
- ldmia lr,{r2, r3} @ get two words from first pointer, post inc\n\
- ldmia r4,{r5, r6} @ get two words from second pointer, post inc\n\
- sub %2, %2, #0x4 @ decrement count by 4\n\
- cmp r2, r5 @ has the count reached ????\n\
- bne 1f @ no = goto\n\
- sub %2, %2, #0x4 @ decrement the count by 4\n\
- add lr, lr, #0x4 @ add 4 to first pointer\n\
- add r4, r4, #0x4 @ add 4 to second pointer\n\
- cmp r3, r6 @ ???\n\
- beq 0b @ goto ???\n\
-1: @ ??\n\
- add %2, %2, #0x4 @ Add four to count\n\
- sub %0, lr, #0x4 @ decrement first pointer by 4\n\
- sub %1, r4, #0x4 @ decrement second pointer by 4\n\
- b 6f @ goto SLOW CHECK\n\
-\n\
-3: @ START WORD CHECK LOOP\n\
- cmp %2, #0x3 @ is the count <= 3 ?\n\
- bls 1f @ yes = goto CHECK BYTES BY HAND\n\
- ldr r2, [lr], #4 @ get word from LR, post inc\n\
- ldr r3, [r4], #4 @ get word from R4, post inc\n\
- sub %2, %2, #4 @ decrement count by 4\n\
- cmp r2, r3 @ are the two words the same ?\n\
- bne 1f @ no = goto CHECK WORD CONTENTS\n\
-0: @ WORD CHECK LOOP\n\
- cmp %2, #0x3 @ is the count <= 3 ?\n\
- bls 1f @ yes = goto CHECK BYTES BY HAND\n\
- ldr r2, [lr], #4 @ load word from LR, post inc\n\
-" PRELOADSTR("lr") " @ preload\n\
- ldr r3, [r4], #4 @ load word from R4, post inc\n\
-" PRELOADSTR("r4") " @ preload\n\
- sub %2, %2, #4 @ decrement count by 4\n\
- cmp r2, r3 @ are the two words the same ?\n\
- beq 0b @ yes = goto WORD CHECK LOOP\n\
-1: @ CHECK BYTES BY HAND\n\
- sub %0, lr, #0x4 @ move LR back a word and put into first pointer\n\
- sub %1, r4, #0x4 @ move R4 back a word and put into second pointer\n\
- add %2, %2, #4 @ increment the count by 4\n\
- @ fall through into SLOW CHECK"
-#endif /* !__OPTIMIZE_SIZE__ */
-"\n\
-6: @ SLOW CHECK\n\
- sub %2, %2, #1 @ Decrement the count by one\n\
- cmn %2, #0x1 @ Has the count reached -1 ?\n\
- beq 4f @ Yes - we are finished, goto PASS END\n\
-0: @ LOOP1\n\
- ldrb r2, [%0], #1 @ get byte from first pointer\n\
-" PRELOADSTR("%0") " @ preload first pointer\n\
- ldrb r3, [%1], #1 @ get byte from second pointer\n\
-" PRELOADSTR("%1") " @ preload second pointer\n\
- cmp r2, r3 @ compare the two loaded bytes\n\
- bne 5f @ if they are not equal goto EXIT\n\
- sub %2, %2, #1 @ decremented count by 1\n\
- cmn %2, #0x1 @ has the count reached -1 ?\n\
- bne 0b @ no = then go back to LOOP1\n\
-4: @ PASS END\n\
- mov r3, r2 @ Default return value is 0\n\
-5: @ EXIT\n\
- rsb %0, r3, r2 @ return difference between last two bytes loaded"
- : "=r" (result), "=&r" (s2), "=&r" (len)
- : "0" (s1), "1" (s2), "2" (len)
- : "r2", "r3", "r4", "r5", "r6", "cc", "lr");
- return result;
-}
-#endif
diff --git a/newlib/libc/machine/xscale/memcpy.c b/newlib/libc/machine/xscale/memcpy.c
deleted file mode 100644
index 20758e159..000000000
--- a/newlib/libc/machine/xscale/memcpy.c
+++ /dev/null
@@ -1,103 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/memcpy.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-#include "../../string/local.h"
-
-void *
-__inhibit_loop_to_libcall
-memcpy (void *__restrict dst0, const void *__restrict src0, size_t len)
-{
- int dummy;
- asm volatile (
-#ifndef __OPTIMIZE_SIZE__
- "cmp %2, #0x3\n\
- bls 3f\n\
- and lr, %1, #0x3\n\
- and r3, %0, #0x3\n\
- cmp lr, r3\n\
- bne 3f\n\
- cmp lr, #0x0\n\
- beq 2f\n\
- b 1f\n\
-0:\n\
- ldrb r3, [%1], #1\n\
-"
- PRELOADSTR ("%1")
-"\n\
- tst %1, #0x3\n\
- strb r3, [%0], #1\n\
- beq 3f\n\
-1:\n\
- sub %2, %2, #1\n\
- cmn %2, #1\n\
- bne 0b\n\
-2:\n\
- cmp %2, #0xf\n\
- bls 1f\n\
-0:\n\
- ldmia %1!, { r3, r4, r5, lr }\n\
-"
- PRELOADSTR ("%1")
-"\n\
-\n\
- sub %2, %2, #16\n\
- cmp %2, #0xf\n\
- stmia %0!, { r3, r4, r5, lr }\n\
- bhi 0b\n\
-1:\n\
- cmp %2, #0x7\n\
- bls 1f\n\
-0:\n\
- ldmia %1!, { r3, r4 }\n\
-"
- PRELOADSTR ("%1")
-"\n\
-\n\
- sub %2, %2, #8\n\
- cmp %2, #0x7\n\
- stmia %0!, { r3, r4 }\n\
- bhi 0b\n\
-1:\n\
- cmp %2, #0x3\n\
- bls 3f\n\
-0:\n\
- sub %2, %2, #4\n\
- ldr r3, [%1], #4\n\
-"
- PRELOADSTR ("%1")
-"\n\
-\n\
- cmp %2, #0x3\n\
- str r3, [%0], #4\n\
- bhi 0b\n\
-"
-#endif /* !__OPTIMIZE_SIZE__ */
-"\n\
-3:\n\
-"
- PRELOADSTR ("%1")
-"\n\
- sub %2, %2, #1\n\
- cmn %2, #1\n\
- beq 1f\n\
-0:\n\
- sub %2, %2, #1\n\
- ldrb r3, [%1], #1\n\
-"
- PRELOADSTR ("%1")
-"\n\
- cmn %2, #1\n\
- strb r3, [%0], #1\n\
- bne 0b\n\
-1:"
- : "=&r" (dummy), "=&r" (src0), "=&r" (len)
- : "0" (dst0), "1" (src0), "2" (len)
- : "memory", "lr", "r3", "r4", "r5", "cc");
- return dst0;
-}
-#endif
diff --git a/newlib/libc/machine/xscale/memmove.c b/newlib/libc/machine/xscale/memmove.c
deleted file mode 100644
index 04d1a14d2..000000000
--- a/newlib/libc/machine/xscale/memmove.c
+++ /dev/null
@@ -1,122 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/memmove.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-static inline void *
-do_memcpy (void *dst0, const void *src0, size_t len)
-{
- int dummy;
- asm volatile (
-#ifndef __OPTIMIZE_SIZE__
- "cmp %2, #0x3\n\
- bls 3f\n\
- and lr, %1, #0x3\n\
- and r3, %0, #0x3\n\
- cmp lr, r3\n\
- bne 3f\n\
- cmp lr, #0x0\n\
- beq 2f\n\
- b 1f\n\
-0:\n\
- ldrb r3, [%1], #1\n\
-"
- PRELOADSTR ("%1")
-"\n\
- tst %1, #0x3\n\
- strb r3, [%0], #1\n\
- beq 3f\n\
-1:\n\
- sub %2, %2, #1\n\
- cmn %2, #1\n\
- bne 0b\n\
-2:\n\
- cmp %2, #0xf\n\
- bls 1f\n\
-0:\n\
- ldmia %1!, { r3, r4, r5, lr }\n\
-"
- PRELOADSTR ("%1")
-"\n\
-\n\
- sub %2, %2, #16\n\
- cmp %2, #0xf\n\
- stmia %0!, { r3, r4, r5, lr }\n\
- bhi 0b\n\
-1:\n\
- cmp %2, #0x7\n\
- bls 1f\n\
-0:\n\
- ldmia %1!, { r3, r4 }\n\
-"
- PRELOADSTR ("%1")
-"\n\
-\n\
- sub %2, %2, #8\n\
- cmp %2, #0x7\n\
- stmia %0!, { r3, r4 }\n\
- bhi 0b\n\
-1:\n\
- cmp %2, #0x3\n\
- bls 3f\n\
-0:\n\
- sub %2, %2, #4\n\
- ldr r3, [%1], #4\n\
-"
- PRELOADSTR ("%1")
-"\n\
-\n\
- cmp %2, #0x3\n\
- str r3, [%0], #4\n\
- bhi 0b\n\
-"
-#endif /* !__OPTIMIZE_SIZE__ */
-"\n\
-3:\n\
-"
- PRELOADSTR ("%1")
-"\n\
- sub %2, %2, #1\n\
- cmn %2, #1\n\
- beq 1f\n\
-0:\n\
- sub %2, %2, #1\n\
- ldrb r3, [%1], #1\n\
-"
- PRELOADSTR ("%1")
-"\n\
- cmn %2, #1\n\
- strb r3, [%0], #1\n\
- bne 0b\n\
-1:"
- : "=&r" (dummy), "=&r" (src0), "=&r" (len)
- : "0" (dst0), "1" (src0), "2" (len)
- : "memory", "lr", "r3", "r4", "r5", "cc");
- return dst0;
-}
-
-void *
-memmove (void *dst, const void *src, size_t len)
-{
- char *d = dst;
- const char *s = src;
-
- if (s < d && d < s + len)
- {
- /* Destructive overlap...have to copy backwards. */
- s += len;
- d += len;
-
- while (len--)
- *--d = *--s;
-
- return dst;
- }
- else
- return do_memcpy (dst, src, len);
-}
-#endif
diff --git a/newlib/libc/machine/xscale/memset.c b/newlib/libc/machine/xscale/memset.c
deleted file mode 100644
index 8fab2a7d1..000000000
--- a/newlib/libc/machine/xscale/memset.c
+++ /dev/null
@@ -1,91 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/memset.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-#include "../../string/local.h"
-
-void *
-__inhibit_loop_to_libcall
-memset (void *dst, int c, size_t len)
-{
- int dummy;
-
- asm volatile ("tst %0, #0x3"
-#ifndef __OPTIMIZE_SIZE__
-"\n\
- beq 1f\n\
- b 2f\n\
-0:\n\
- strb %1, [%0], #1\n\
- tst %0, #0x3\n\
- beq 1f\n\
-2:\n\
- movs r3, %2\n\
- sub %2, %2, #1\n\
- bne 0b\n\
-# At this point we know that %2 == len == -1 (since the SUB has already taken\n\
-# place). If we fall through to the 1: label (as the code used to do), the\n\
-# CMP will detect this negative value and branch to the 2: label. This will\n\
-# test %2 again, but this time against 0. The test will fail and the loop\n\
-# at 2: will go on for (almost) ever. Hence the explicit branch to the end\n\
-# of the hand written assembly code.\n\
- b 4f\n\
-1:\n\
- cmp %2, #0x3\n\
- bls 2f\n\
- and %1, %1, #0xff\n\
- orr lr, %1, %1, asl #8\n\
- cmp %2, #0xf\n\
- orr lr, lr, lr, asl #16\n\
- bls 1f\n\
- mov r3, lr\n\
- mov r4, lr\n\
- mov r5, lr\n\
-0:\n\
- sub %2, %2, #16\n\
- stmia %0!, { r3, r4, r5, lr }\n\
- cmp %2, #0xf\n\
- bhi 0b\n\
-1:\n\
- cmp %2, #0x7\n\
- bls 1f\n\
- mov r3, lr\n\
-0:\n\
- sub %2, %2, #8\n\
- stmia %0!, { r3, lr }\n\
- cmp %2, #0x7\n\
- bhi 0b\n\
-1:\n\
- cmp %2, #0x3\n\
- bls 2f\n\
-0:\n\
- sub %2, %2, #4\n\
- str lr, [%0], #4\n\
- cmp %2, #0x3\n\
- bhi 0b\n\
-"
-#endif /* !__OPTIMIZE_SIZE__ */
-"\n\
-2:\n\
- movs r3, %2\n\
- sub %2, %2, #1\n\
- beq 4f\n\
-0:\n\
- movs r3, %2\n\
- sub %2, %2, #1\n\
- strb %1, [%0], #1\n\
- bne 0b\n\
-4:"
-
- : "=&r" (dummy), "=&r" (c), "=&r" (len)
- : "0" (dst), "1" (c), "2" (len)
- : "memory", "r3", "r4", "r5", "lr");
-
- return dst;
-}
-
-#endif
diff --git a/newlib/libc/machine/xscale/setjmp.S b/newlib/libc/machine/xscale/setjmp.S
deleted file mode 100644
index d37486090..000000000
--- a/newlib/libc/machine/xscale/setjmp.S
+++ /dev/null
@@ -1,137 +0,0 @@
-/* This is a simple version of setjmp and longjmp.
-
- Nick Clifton, Cygnus Solutions, 13 June 1997. */
-
-/* ANSI concatenation macros. */
-#define CONCAT(a, b) CONCAT2(a, b)
-#define CONCAT2(a, b) a##b
-
-#ifndef __USER_LABEL_PREFIX__
-#error __USER_LABEL_PREFIX__ not defined
-#endif
-
-#define SYM(x) CONCAT (__USER_LABEL_PREFIX__, x)
-
-#ifdef __ELF__
-#define TYPE(x) .type SYM(x),function
-#define SIZE(x) .size SYM(x), . - SYM(x)
-#else
-#define TYPE(x)
-#define SIZE(x)
-#endif
-
-/* Arm/Thumb interworking support:
-
- The interworking scheme expects functions to use a BX instruction
- to return control to their parent. Since we need this code to work
- in both interworked and non-interworked environments as well as with
- older processors which do not have the BX instruction we do the
- following:
- Test the return address.
- If the bottom bit is clear perform an "old style" function exit.
- (We know that we are in ARM mode and returning to an ARM mode caller).
- Otherwise use the BX instruction to perform the function exit.
-
- We know that we will never attempt to perform the BX instruction on
- an older processor, because that kind of processor will never be
- interworked, and a return address with the bottom bit set will never
- be generated.
-
- In addition, we do not actually assemble the BX instruction as this would
- require us to tell the assembler that the processor is an ARM7TDMI and
- it would store this information in the binary. We want this binary to be
- able to be linked with binaries compiled for older processors however, so
- we do not want such information stored there.
-
- If we are running using the APCS-26 convention however, then we never
- test the bottom bit, because this is part of the processor status.
- Instead we just do a normal return, since we know that we cannot be
- returning to a Thumb caller - the Thumb does not support APCS-26.
-
- Function entry is much simpler. If we are compiling for the Thumb we
- just switch into ARM mode and then drop through into the rest of the
- function. The function exit code will take care of the restore to
- Thumb mode. */
-
-#ifdef __APCS_26__
-#define RET movs pc, lr
-#else
-#define RET tst lr, #1; \
- moveq pc, lr ; \
-.word 0xe12fff1e /* bx lr */
-#endif
-
-#ifdef __thumb__
-#define MODE .thumb_func
-.macro PROLOGUE name
- .code 16
- bx pc
- nop
- .code 32
-SYM (.arm_start_of.\name):
-.endm
-#else
-#define MODE .code 32
-.macro PROLOGUE name
-.endm
-#endif
-
-.macro FUNC_START name
- .text
- .align 2
- MODE
- .globl SYM (\name)
- TYPE (\name)
-SYM (\name):
- PROLOGUE \name
-.endm
-
-.macro FUNC_END name
- RET
- SIZE (\name)
-.endm
-
-/* --------------------------------------------------------------------
- int setjmp (jmp_buf);
- -------------------------------------------------------------------- */
-
- FUNC_START setjmp
-
- /* Save all the callee-preserved registers into the jump buffer. */
- stmea a1!, { v1-v7, fp, ip, sp, lr }
-
-#if 0 /* Simulator does not cope with FP instructions yet. */
-#ifndef __SOFTFP__
- /* Save the floating point registers. */
- sfmea f4, 4, [a1]
-#endif
-#endif
- /* When setting up the jump buffer return 0. */
- mov a1, #0
-
- FUNC_END setjmp
-
-/* --------------------------------------------------------------------
- volatile void longjmp (jmp_buf, int);
- -------------------------------------------------------------------- */
-
- FUNC_START longjmp
-
- /* If we have stack extension code it ought to be handled here. */
-
- /* Restore the registers, retrieving the state when setjmp() was called. */
- ldmfd a1!, { v1-v7, fp, ip, sp, lr }
-
-#if 0 /* Simulator does not cope with FP instructions yet. */
-#ifndef __SOFTFP__
- /* Restore floating point registers as well. */
- lfmfd f4, 4, [a1]
-#endif
-#endif
- /* Put the return value into the integer result register.
- But if it is zero then return 1 instead. */
- movs a1, a2
- moveq a1, #1
-
- FUNC_END longjmp
-
diff --git a/newlib/libc/machine/xscale/strchr.c b/newlib/libc/machine/xscale/strchr.c
deleted file mode 100644
index 3b736c53c..000000000
--- a/newlib/libc/machine/xscale/strchr.c
+++ /dev/null
@@ -1,73 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/strchr.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-char *
-strchr (const char *s, int c)
-{
- unsigned int c2;
- asm (PRELOADSTR ("%0") : : "r" (s));
-
- c &= 0xff;
-
-#ifndef __OPTIMIZE_SIZE__
- /* Skip unaligned part. */
- if ((long)s & 3)
- {
- s--;
- do
- {
- int c2 = *++s;
- if (c2 == c)
- return (char *)s;
- if (c2 == '\0')
- return 0;
- }
- while (((long)s & 3) != 0);
- }
-
- c2 = c + (c << 8);
- c2 += c2 << 16;
-
- /* Load two constants:
- R6 = 0xfefefeff [ == ~(0x80808080 << 1) ]
- R5 = 0x80808080 */
-
- asm (PRELOADSTR ("%0") "\n\
- mov r5, #0x80\n\
- add r5, r5, #0x8000\n\
- add r5, r5, r5, lsl #16\n\
- mvn r6, r5, lsl #1\n\
-\n\
- sub %0, %0, #4\n\
-0:\n\
- ldr r1, [%0, #4]!\n\
-" PRELOADSTR ("%0") "\n\
- add r3, r1, r6\n\
- bic r3, r3, r1\n\
- ands r2, r3, r5\n\
- bne 1f\n\
- eor r2, r1, %1\n\
- add r3, r2, r6\n\
- bic r3, r3, r2\n\
- ands r1, r3, r5\n\
- beq 0b\n\
-1:"
- : "=&r" (s)
- : "r" (c2), "0" (s)
- : "r1", "r2", "r3", "r5", "r6", "cc");
-#endif
-
- while (*s && *s != c)
- s++;
- if (*s == c)
- return (char *)s;
- return NULL;
-}
-
-#endif
diff --git a/newlib/libc/machine/xscale/strcmp.c b/newlib/libc/machine/xscale/strcmp.c
deleted file mode 100644
index 6c94d126f..000000000
--- a/newlib/libc/machine/xscale/strcmp.c
+++ /dev/null
@@ -1,107 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/strcmp.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-int
-strcmp (const char *s1, const char *s2)
-{
- asm (PRELOADSTR ("%0") : : "r" (s1));
- asm (PRELOADSTR ("%0") : : "r" (s2));
-
-#ifndef __OPTIMIZE_SIZE__
- if (((long)s1 & 3) == ((long)s2 & 3))
- {
- int result;
-
- /* Skip unaligned part. */
- while ((long)s1 & 3)
- {
- if (*s1 == '\0' || *s1 != *s2)
- goto out;
- s1++;
- s2++;
- }
-
- /* Load two constants:
- lr = 0xfefefeff [ == ~(0x80808080 << 1) ]
- ip = 0x80808080 */
-
- asm (
- "ldr r2, [%1, #0]\n\
- ldr r3, [%2, #0]\n\
- cmp r2, r3\n\
- bne 2f\n\
-\n\
- mov ip, #0x80\n\
- add ip, ip, #0x8000\n\
- add ip, ip, ip, lsl #16\n\
- mvn lr, ip, lsl #1\n\
-\n\
-0:\n\
- ldr r2, [%1, #0]\n\
- add r3, r2, lr\n\
- bic r3, r3, r2\n\
- tst r3, ip\n\
- beq 1f\n\
- mov %0, #0x0\n\
- b 3f\n\
-1:\n\
- ldr r2, [%1, #4]!\n\
- ldr r3, [%2, #4]!\n\
-" PRELOADSTR("%1") "\n\
-" PRELOADSTR("%2") "\n\
- cmp r2, r3\n\
- beq 0b"
-
- /* The following part could be done in a C loop as well, but it needs
- to be assembler to save some cycles in the case where the optimized
- loop above finds the strings to be equal. */
-"\n\
-2:\n\
- ldrb r2, [%1, #0]\n\
-" PRELOADSTR("%1") "\n\
-" PRELOADSTR("%2") "\n\
- cmp r2, #0x0\n\
- beq 1f\n\
- ldrb r3, [%2, #0]\n\
- cmp r2, r3\n\
- bne 1f\n\
-0:\n\
- ldrb r3, [%1, #1]!\n\
- add %2, %2, #1\n\
- ands ip, r3, #0xff\n\
- beq 1f\n\
- ldrb r3, [%2]\n\
- cmp ip, r3\n\
- beq 0b\n\
-1:\n\
- ldrb lr, [%1, #0]\n\
- ldrb ip, [%2, #0]\n\
- rsb %0, ip, lr\n\
-3:\n\
-"
-
- : "=r" (result), "=&r" (s1), "=&r" (s2)
- : "1" (s1), "2" (s2)
- : "lr", "ip", "r2", "r3", "cc");
- return result;
- }
-#endif
-
- while (*s1 != '\0' && *s1 == *s2)
- {
- asm (PRELOADSTR("%0") : : "r" (s1));
- asm (PRELOADSTR("%0") : : "r" (s2));
- s1++;
- s2++;
- }
- out:
- return (*(unsigned char *) s1) - (*(unsigned char *) s2);
-}
-
-#endif
diff --git a/newlib/libc/machine/xscale/strcpy.c b/newlib/libc/machine/xscale/strcpy.c
deleted file mode 100644
index 46db2ba6a..000000000
--- a/newlib/libc/machine/xscale/strcpy.c
+++ /dev/null
@@ -1,62 +0,0 @@
-#if defined __thumb__
-
-#include "../../string/strcpy.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-char *
-strcpy (char *dest, const char *src)
-{
- char *dest0 = dest;
-
- asm (PRELOADSTR ("%0") : : "r" (src));
-
-#ifndef __OPTIMIZE_SIZE__
- if (((long)src & 3) == ((long)dest & 3))
- {
- /* Skip unaligned part. */
- while ((long)src & 3)
- {
- if (! (*dest++ = *src++))
- return dest0;
- }
-
- /* Load two constants:
- R4 = 0xfefefeff [ == ~(0x80808080 << 1) ]
- R5 = 0x80808080 */
-
- asm ("mov r5, #0x80\n\
- ldr r1, [%1, #0]\n\
- add r5, r5, #0x8000\n\
- add r5, r5, r5, lsl #16\n\
- mvn r4, r5, lsl #1\n\
-\n\
- add r3, r1, r5\n\
- bic r3, r3, r1\n\
- ands r2, r3, r4\n\
- bne 1f\n\
-0:\n\
- ldr r3, [%1, #0]\n\
- ldr r1, [%1, #4]!\n\
-" PRELOADSTR("%1") "\n\
- str r3, [%0], #4\n\
- add r2, r1, r4\n\
- bic r2, r2, r1\n\
- ands r3, r2, r5\n\
- beq 0b\n\
-1:"
- : "=&r" (dest), "=&r" (src)
- : "0" (dest), "1" (src)
- : "r1", "r2", "r3", "r4", "r5", "memory", "cc");
- }
-#endif
-
- while (*dest++ = *src++)
- asm (PRELOADSTR ("%0") : : "r" (src));
- return dest0;
-}
-
-#endif
diff --git a/newlib/libc/machine/xscale/strlen.c b/newlib/libc/machine/xscale/strlen.c
deleted file mode 100644
index 70c9a3b44..000000000
--- a/newlib/libc/machine/xscale/strlen.c
+++ /dev/null
@@ -1,100 +0,0 @@
-#if defined __thumb__ || defined(PREFER_SIZE_OVER_SPEED) || defined(__OPTIMIZE_SIZE__)
-
-#include "../../string/strlen.c"
-
-#else
-
-#include <string.h>
-#include "xscale.h"
-
-size_t
-strlen (const char *str)
-{
- const char *start = str;
-
- /* Skip unaligned part. */
- if ((long)str & 3)
- {
- str--;
- do
- {
- if (*++str == '\0')
- goto out;
- }
- while ((long)str & 3);
- }
-
- /* Load two constants:
- R4 = 0xfefefeff [ == ~(0x80808080 << 1) ]
- R5 = 0x80808080 */
-
- asm ("mov r5, #0x80\n\
- add r5, r5, #0x8000\n\
- add r5, r5, r5, lsl #16\n\
- mvn r4, r5, lsl #1\n\
-"
-
-#if defined __ARM_ARCH_5__ || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5E__ || defined __ARM_ARCH_5TE__
-
-" tst %0, #0x7\n\
- ldreqd r6, [%0]\n\
- beq 1f\n\
- ldr r2, [%0]\n\
- add r3, r2, r4\n\
- bic r3, r3, r2\n\
- ands r2, r3, r5\n\
- bne 2f\n\
- sub %0, %0, #4\n\
-\n\
-0:\n\
- ldrd r6, [%0, #8]!\n\
-"
- PRELOADSTR ("%0")
-"\n\
-1:\n\
- add r3, r6, r4\n\
- add r2, r7, r4\n\
- bic r3, r3, r6\n\
- bic r2, r2, r7\n\
- and r3, r3, r5\n\
- and r2, r2, r5\n\
- orrs r3, r2, r3\n\
- beq 0b\n\
-"
-#else
-
-" sub %0, %0, #4\n\
-\n\
-0:\n\
- ldr r6, [%0, #4]!\n\
-"
- PRELOADSTR ("%0")
-"\n\
- add r3, r6, r4\n\
- bic r3, r3, r6\n\
- ands r3, r3, r5\n\
- beq 0b\n\
-"
-#endif /* __ARM_ARCH_5[T][E]__ */
-"\n\
-2:\n\
- ldrb r3, [%0]\n\
- cmp r3, #0x0\n\
- beq 1f\n\
-\n\
-0:\n\
- ldrb r3, [%0, #1]!\n\
-"
- PRELOADSTR ("%0")
-"\n\
- cmp r3, #0x0\n\
- bne 0b\n\
-1:\n\
-"
- : "=r" (str) : "0" (str) : "r2", "r3", "r4", "r5", "r6", "r7");
-
- out:
- return str - start;
-}
-
-#endif
diff --git a/newlib/libc/machine/xscale/xscale.h b/newlib/libc/machine/xscale/xscale.h
deleted file mode 100644
index c127e6653..000000000
--- a/newlib/libc/machine/xscale/xscale.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef __XSCALE_MACH_H__
-#define __XSCALE_MACH_H__
-
-/* 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)
-
-#ifdef __XSCALE__
-#define PRELOAD(X) pld [X]
-#define PRELOADSTR(X) " pld [" X "]"
-#else
-#define PRELOAD(X)
-#define PRELOADSTR(X) ""
-#endif /* __XSCALE__ */
-
-#endif /* !__XSCALE_MACH_H__ */
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2022-02-09 0:05 [newlib-cygwin] newlib: drop unused xscale subdir Michael Frysinger
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