From: Ammar Faizi <[email protected]>
To: "Willy Tarreau" <[email protected]>, "Thomas Weißschuh" <[email protected]>
Cc: Ammar Faizi <[email protected]>,
David Laight <[email protected]>,
Nicholas Rosenberg <[email protected]>,
Alviro Iskandar Setiawan <[email protected]>,
Michael William Jonathan <[email protected]>,
GNU/Weeb Mailing List <[email protected]>,
Linux Kernel Mailing List <[email protected]>
Subject: [RFC PATCH v3 3/4] tools/nolibc: string: Remove the `_nolibc_memcpy_down()` function
Date: Sat, 2 Sep 2023 20:35:04 +0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
This nolibc internal function is not used. Delete it. It was probably
supposed to handle memmove(), but today the memmove() has its own
implementation.
Signed-off-by: Ammar Faizi <[email protected]>
---
tools/include/nolibc/string.h | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/tools/include/nolibc/string.h b/tools/include/nolibc/string.h
index 1bad6121ef8c4ab5..22dcb3f566baeefe 100644
--- a/tools/include/nolibc/string.h
+++ b/tools/include/nolibc/string.h
@@ -22,50 +22,40 @@ int memcmp(const void *s1, const void *s2, size_t n)
int c1 = 0;
while (ofs < n && !(c1 = ((unsigned char *)s1)[ofs] - ((unsigned char *)s2)[ofs])) {
ofs++;
}
return c1;
}
static __attribute__((unused))
void *_nolibc_memcpy_up(void *dst, const void *src, size_t len)
{
size_t pos = 0;
while (pos < len) {
((char *)dst)[pos] = ((const char *)src)[pos];
pos++;
}
return dst;
}
-static __attribute__((unused))
-void *_nolibc_memcpy_down(void *dst, const void *src, size_t len)
-{
- while (len) {
- len--;
- ((char *)dst)[len] = ((const char *)src)[len];
- }
- return dst;
-}
-
#ifndef NOLIBC_ARCH_HAS_MEMMOVE
/* might be ignored by the compiler without -ffreestanding, then found as
* missing.
*/
__attribute__((weak,unused,section(".text.nolibc_memmove")))
void *memmove(void *dst, const void *src, size_t len)
{
size_t dir, pos;
pos = len;
dir = -1;
if (dst < src) {
pos = -1;
dir = 1;
}
while (len) {
pos += dir;
((char *)dst)[pos] = ((const char *)src)[pos];
--
Ammar Faizi
next prev parent reply other threads:[~2023-09-02 13:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-02 13:35 [RFC PATCH v3 0/4] nolibc x86-64 string functions Ammar Faizi
2023-09-02 13:35 ` [RFC PATCH v3 1/4] tools/nolibc: x86-64: Use `rep movsb` for `memcpy()` and `memmove()` Ammar Faizi
2023-09-02 13:35 ` [RFC PATCH v3 2/4] tools/nolibc: x86-64: Use `rep stosb` for `memset()` Ammar Faizi
2023-09-02 19:28 ` Alviro Iskandar Setiawan
2023-09-02 19:34 ` Ammar Faizi
2023-09-02 19:38 ` Alviro Iskandar Setiawan
2023-09-02 19:39 ` Ammar Faizi
2023-09-03 8:17 ` Willy Tarreau
2023-09-03 8:34 ` Ammar Nofan Faizi
2023-09-03 8:39 ` Ammar Faizi
2023-09-03 9:55 ` Willy Tarreau
2023-09-02 13:35 ` Ammar Faizi [this message]
2023-09-02 19:24 ` [RFC PATCH v3 3/4] tools/nolibc: string: Remove the `_nolibc_memcpy_down()` function Alviro Iskandar Setiawan
2023-09-02 13:35 ` [RFC PATCH v3 4/4] tools/nolibc: string: Remove the `_nolibc_memcpy_up()` function Ammar Faizi
2023-09-02 19:26 ` Alviro Iskandar Setiawan
2023-09-03 20:38 ` [RFC PATCH v3 0/4] nolibc x86-64 string functions David Laight
2023-09-03 21:19 ` Willy Tarreau
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