diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/tools/amiga | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/m68k/tools/amiga')
-rw-r--r-- | arch/m68k/tools/amiga/Makefile | 11 | ||||
-rw-r--r-- | arch/m68k/tools/amiga/dmesg.c | 69 |
2 files changed, 80 insertions, 0 deletions
diff --git a/arch/m68k/tools/amiga/Makefile b/arch/m68k/tools/amiga/Makefile new file mode 100644 index 000000000000..113436136089 --- /dev/null +++ b/arch/m68k/tools/amiga/Makefile @@ -0,0 +1,11 @@ + +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 000000000000..e892748e7386 --- /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[0]; +}; + + +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); +} |