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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/m68k/tools/amiga | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | arch/m68k/tools/amiga/Makefile | 12 | ||||
-rw-r--r-- | arch/m68k/tools/amiga/dmesg.c | 69 |
2 files changed, 81 insertions, 0 deletions
diff --git a/arch/m68k/tools/amiga/Makefile b/arch/m68k/tools/amiga/Makefile new file mode 100644 index 000000000..e6425b367 --- /dev/null +++ b/arch/m68k/tools/amiga/Makefile @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 + +CC = m68k-cbm-amigados-gcc +CFLAGS = -Wall -O2 + + +All: dmesg + + +dmesg: dmesg.c + $(CC) $(CFLAGS) -o dmesg dmesg.c -noixemul + diff --git a/arch/m68k/tools/amiga/dmesg.c b/arch/m68k/tools/amiga/dmesg.c new file mode 100644 index 000000000..f8005a7ef --- /dev/null +++ b/arch/m68k/tools/amiga/dmesg.c @@ -0,0 +1,69 @@ +/* + * linux/arch/m68k/tools/amiga/dmesg.c -- Retrieve the kernel messages stored + * in Chip RAM with the kernel command + * line option `debug=mem'. + * + * © Copyright 1996 by Geert Uytterhoeven <geert@linux-m68k.org> + * + * + * Usage: + * + * dmesg + * dmesg <CHIPMEM_END> + * + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of the Linux + * distribution for more details. + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + + +#define CHIPMEM_START 0x00000000 +#define CHIPMEM_END 0x00200000 /* overridden by argv[1] */ + +#define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ +#define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ + +struct savekmsg { + u_long magic1; /* SAVEKMSG_MAGIC1 */ + u_long magic2; /* SAVEKMSG_MAGIC2 */ + u_long magicptr; /* address of magic1 */ + u_long size; + char data[]; +}; + + +int main(int argc, char *argv[]) +{ + u_long start = CHIPMEM_START, end = CHIPMEM_END, p; + int found = 0; + struct savekmsg *m = NULL; + + if (argc >= 2) + end = strtoul(argv[1], NULL, 0); + printf("Searching for SAVEKMSG magic...\n"); + for (p = start; p <= end-sizeof(struct savekmsg); p += 4) { + m = (struct savekmsg *)p; + if ((m->magic1 == SAVEKMSG_MAGIC1) && (m->magic2 == SAVEKMSG_MAGIC2) && + (m->magicptr == p)) { + found = 1; + break; + } + } + if (!found) + printf("Not found\n"); + else { + printf("Found %ld bytes at 0x%08lx\n", m->size, (u_long)&m->data); + puts(">>>>>>>>>>>>>>>>>>>>"); + fflush(stdout); + write(1, &m->data, m->size); + fflush(stdout); + puts("<<<<<<<<<<<<<<<<<<<<"); + } + return(0); +} |