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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/boot/decompressor/minilib.c | |
parent | Initial commit. (diff) | |
download | grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.tar.xz grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/boot/decompressor/minilib.c')
-rw-r--r-- | grub-core/boot/decompressor/minilib.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/grub-core/boot/decompressor/minilib.c b/grub-core/boot/decompressor/minilib.c new file mode 100644 index 0000000..fc46ee0 --- /dev/null +++ b/grub-core/boot/decompressor/minilib.c @@ -0,0 +1,93 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2010 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/misc.h> +#include <grub/decompressor.h> + +void * +grub_memset (void *s, int c, grub_size_t len) +{ + grub_uint8_t *ptr; + for (ptr = s; len; ptr++, len--) + *ptr = c; + return s; +} + +void * +grub_memmove (void *dest, const void *src, grub_size_t n) +{ + char *d = (char *) dest; + const char *s = (const char *) src; + + if (d < s) + while (n--) + *d++ = *s++; + else + { + d += n; + s += n; + + while (n--) + *--d = *--s; + } + + return dest; +} + +int +grub_memcmp (const void *s1, const void *s2, grub_size_t n) +{ + const unsigned char *t1 = s1; + const unsigned char *t2 = s2; + + while (n--) + { + if (*t1 != *t2) + return (int) *t1 - (int) *t2; + + t1++; + t2++; + } + + return 0; +} + +void *grub_decompressor_scratch; + +void +find_scratch (void *src, void *dst, unsigned long srcsize, + unsigned long dstsize) +{ +#ifdef _mips + /* Decoding from ROM. */ + if (((grub_addr_t) src & 0x10000000)) + { + grub_decompressor_scratch = (void *) ALIGN_UP((grub_addr_t) dst + dstsize, + 256); + return; + } +#endif + if ((char *) src + srcsize > (char *) dst + dstsize) + grub_decompressor_scratch = (void *) ALIGN_UP ((grub_addr_t) src + srcsize, + 256); + else + grub_decompressor_scratch = (void *) ALIGN_UP ((grub_addr_t) dst + dstsize, + 256); + return; +} |