From b0dd8cb4076ea178df93ad56be6636dcdb444c33 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sun, 28 Jun 2020 16:30:29 +0200 Subject: efi_loader: new function efi_memcpy_runtime() Provide a memcpy() function that we can use at UEFI runtime. Signed-off-by: Heinrich Schuchardt --- lib/efi_loader/efi_runtime.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'lib/efi_loader/efi_runtime.c') diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c index a4aa1d8b6c0..5b6506fbdc2 100644 --- a/lib/efi_loader/efi_runtime.c +++ b/lib/efi_loader/efi_runtime.c @@ -137,6 +137,25 @@ efi_status_t efi_init_runtime_supported(void) return ret; } +/** + * efi_memcpy_runtime() - copy memory area + * + * At runtime memcpy() is not available. + * + * @dest: destination buffer + * @src: source buffer + * @n: number of bytes to copy + * Return: pointer to destination buffer + */ +void __efi_runtime efi_memcpy_runtime(void *dest, const void *src, size_t n) +{ + u8 *d = dest; + const u8 *s = src; + + for (; n; --n) + *d++ = *s++; +} + /** * efi_update_table_header_crc32() - Update crc32 in table header * -- cgit v1.2.3