Eric Lee / smarc-fsl-linux-kernel

Commit dd56fdf23dfa0127d512b73d4238dbd2b5a7c1eb

Authored by jdl@freescale.com 20 years ago

Committed by Paul Mackerras 20 years ago

Exists in master and in 39 other branches

[PATCH] powerpc: Merge a few more include files

Merge a few asm-ppc and asm-ppc64 header files.
Note: the merge of setup.h intentionally does not carry
forward the m68k cruft.  That means this patch continues
to break the already broken amiga on the ppc32.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Showing 18 changed files with 240 additions and 380 deletions Side-by-side Diff

include/asm-powerpc/msgbuf.h
include/asm-powerpc/param.h
include/asm-powerpc/setup.h
include/asm-powerpc/timex.h
include/asm-powerpc/topology.h
include/asm-powerpc/user.h
include/asm-ppc/msgbuf.h
include/asm-ppc/param.h
include/asm-ppc/setup.h
include/asm-ppc/timex.h
include/asm-ppc/topology.h
include/asm-ppc/user.h
include/asm-ppc64/msgbuf.h
include/asm-ppc64/param.h
include/asm-ppc64/setup.h
include/asm-ppc64/timex.h
include/asm-ppc64/topology.h
include/asm-ppc64/user.h

include/asm-powerpc/msgbuf.h

Diff comments View file @ dd56fdf

	1	+#ifndef _ASM_POWERPC_MSGBUF_H
	2	+#define _ASM_POWERPC_MSGBUF_H
	3	+
	4	+/*
	5	+ * The msqid64_ds structure for the PowerPC architecture.
	6	+ * Note extra padding because this structure is passed back and forth
	7	+ * between kernel and user space.
	8	+ */
	9	+
	10	+struct msqid64_ds {
	11	+ struct ipc64_perm msg_perm;
	12	+#ifndef __powerpc64__
	13	+ unsigned int __unused1;
	14	+#endif
	15	+ __kernel_time_t msg_stime; /* last msgsnd time */
	16	+#ifndef __powerpc64__
	17	+ unsigned int __unused2;
	18	+#endif
	19	+ __kernel_time_t msg_rtime; /* last msgrcv time */
	20	+#ifndef __powerpc64__
	21	+ unsigned int __unused3;
	22	+#endif
	23	+ __kernel_time_t msg_ctime; /* last change time */
	24	+ unsigned long msg_cbytes; /* current number of bytes on queue */
	25	+ unsigned long msg_qnum; /* number of messages in queue */
	26	+ unsigned long msg_qbytes; /* max number of bytes on queue */
	27	+ __kernel_pid_t msg_lspid; /* pid of last msgsnd */
	28	+ __kernel_pid_t msg_lrpid; /* last receive pid */
	29	+ unsigned long __unused4;
	30	+ unsigned long __unused5;
	31	+};
	32	+
	33	+#endif /* _ASM_POWERPC_MSGBUF_H */

include/asm-powerpc/param.h

Diff comments View file @ dd56fdf

	1	+#ifndef _ASM_POWERPC_PARAM_H
	2	+#define _ASM_POWERPC_PARAM_H
	3	+
	4	+#include <linux/config.h>
	5	+
	6	+#ifdef __KERNEL__
	7	+#define HZ CONFIG_HZ /* internal kernel timer frequency */
	8	+#define USER_HZ 100 /* for user interfaces in "ticks" */
	9	+#define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */
	10	+#endif /* __KERNEL__ */
	11	+
	12	+#ifndef HZ
	13	+#define HZ 100
	14	+#endif
	15	+
	16	+#define EXEC_PAGESIZE 4096
	17	+
	18	+#ifndef NOGROUP
	19	+#define NOGROUP (-1)
	20	+#endif
	21	+
	22	+#define MAXHOSTNAMELEN 64 /* max length of hostname */
	23	+
	24	+#endif /* _ASM_POWERPC_PARAM_H */

include/asm-powerpc/setup.h

Diff comments View file @ dd56fdf

	1	+#ifndef _ASM_POWERPC_SETUP_H
	2	+#define _ASM_POWERPC_SETUP_H
	3	+
	4	+#ifdef __KERNEL__
	5	+
	6	+#define COMMAND_LINE_SIZE 512
	7	+
	8	+#endif /* __KERNEL__ */
	9	+#endif /* _ASM_POWERPC_SETUP_H */

include/asm-powerpc/timex.h

Diff comments View file @ dd56fdf

	1	+#ifndef _ASM_POWERPC_TIMEX_H
	2	+#define _ASM_POWERPC_TIMEX_H
	3	+
	4	+#ifdef __KERNEL__
	5	+
	6	+/*
	7	+ * PowerPC architecture timex specifications
	8	+ */
	9	+
	10	+#include <linux/config.h>
	11	+#include <asm/cputable.h>
	12	+
	13	+#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
	14	+
	15	+typedef unsigned long cycles_t;
	16	+
	17	+static inline cycles_t get_cycles(void)
	18	+{
	19	+ cycles_t ret;
	20	+
	21	+#ifdef __powerpc64__
	22	+
	23	+ __asm__ __volatile__("mftb %0" : "=r" (ret) : );
	24	+
	25	+#else
	26	+ /*
	27	+ * For the "cycle" counter we use the timebase lower half.
	28	+ * Currently only used on SMP.
	29	+ */
	30	+
	31	+ ret = 0;
	32	+
	33	+ __asm__ __volatile__(
	34	+ "98: mftb %0\n"
	35	+ "99:\n"
	36	+ ".section __ftr_fixup,\"a\"\n"
	37	+ " .long %1\n"
	38	+ " .long 0\n"
	39	+ " .long 98b\n"
	40	+ " .long 99b\n"
	41	+ ".previous"
	42	+ : "=r" (ret) : "i" (CPU_FTR_601));
	43	+#endif
	44	+
	45	+ return ret;
	46	+}
	47	+
	48	+#endif /* __KERNEL__ */
	49	+#endif /* _ASM_POWERPC_TIMEX_H */

include/asm-powerpc/topology.h

Diff comments View file @ dd56fdf

	1	+#ifndef _ASM_POWERPC_TOPOLOGY_H
	2	+#define _ASM_POWERPC_TOPOLOGY_H
	3	+
	4	+#include <linux/config.h>
	5	+
	6	+#ifdef CONFIG_NUMA
	7	+
	8	+#include <asm/mmzone.h>
	9	+
	10	+static inline int cpu_to_node(int cpu)
	11	+{
	12	+ int node;
	13	+
	14	+ node = numa_cpu_lookup_table[cpu];
	15	+
	16	+#ifdef DEBUG_NUMA
	17	+ BUG_ON(node == -1);
	18	+#endif
	19	+
	20	+ return node;
	21	+}
	22	+
	23	+#define parent_node(node) (node)
	24	+
	25	+static inline cpumask_t node_to_cpumask(int node)
	26	+{
	27	+ return numa_cpumask_lookup_table[node];
	28	+}
	29	+
	30	+static inline int node_to_first_cpu(int node)
	31	+{
	32	+ cpumask_t tmp;
	33	+ tmp = node_to_cpumask(node);
	34	+ return first_cpu(tmp);
	35	+}
	36	+
	37	+#define pcibus_to_node(node) (-1)
	38	+#define pcibus_to_cpumask(bus) (cpu_online_map)
	39	+
	40	+#define nr_cpus_node(node) (nr_cpus_in_node[node])
	41	+
	42	+/* sched_domains SD_NODE_INIT for PPC64 machines */
	43	+#define SD_NODE_INIT (struct sched_domain) { \
	44	+ .span = CPU_MASK_NONE, \
	45	+ .parent = NULL, \
	46	+ .groups = NULL, \
	47	+ .min_interval = 8, \
	48	+ .max_interval = 32, \
	49	+ .busy_factor = 32, \
	50	+ .imbalance_pct = 125, \
	51	+ .cache_hot_time = (10*1000000), \
	52	+ .cache_nice_tries = 1, \
	53	+ .per_cpu_gain = 100, \
	54	+ .flags = SD_LOAD_BALANCE \
	55	+ \| SD_BALANCE_EXEC \
	56	+ \| SD_BALANCE_NEWIDLE \
	57	+ \| SD_WAKE_IDLE \
	58	+ \| SD_WAKE_BALANCE, \
	59	+ .last_balance = jiffies, \
	60	+ .balance_interval = 1, \
	61	+ .nr_balance_failed = 0, \
	62	+}
	63	+
	64	+#else
	65	+
	66	+#include <asm-generic/topology.h>
	67	+
	68	+#endif /* CONFIG_NUMA */
	69	+
	70	+#endif /* _ASM_POWERPC_TOPOLOGY_H */

include/asm-powerpc/user.h

Diff comments View file @ dd56fdf

	1	+#ifndef _ASM_POWERPC_USER_H
	2	+#define _ASM_POWERPC_USER_H
	3	+
	4	+#ifdef __KERNEL__
	5	+
	6	+#include <asm/ptrace.h>
	7	+#include <asm/page.h>
	8	+
	9	+/*
	10	+ * Adapted from <asm-alpha/user.h>
	11	+ *
	12	+ * Core file format: The core file is written in such a way that gdb
	13	+ * can understand it and provide useful information to the user (under
	14	+ * linux we use the `trad-core' bfd, NOT the osf-core). The file contents
	15	+ * are as follows:
	16	+ *
	17	+ * upage: 1 page consisting of a user struct that tells gdb
	18	+ * what is present in the file. Directly after this is a
	19	+ * copy of the task_struct, which is currently not used by gdb,
	20	+ * but it may come in handy at some point. All of the registers
	21	+ * are stored as part of the upage. The upage should always be
	22	+ * only one page long.
	23	+ * data: The data segment follows next. We use current->end_text to
	24	+ * current->brk to pick up all of the user variables, plus any memory
	25	+ * that may have been sbrk'ed. No attempt is made to determine if a
	26	+ * page is demand-zero or if a page is totally unused, we just cover
	27	+ * the entire range. All of the addresses are rounded in such a way
	28	+ * that an integral number of pages is written.
	29	+ * stack: We need the stack information in order to get a meaningful
	30	+ * backtrace. We need to write the data from usp to
	31	+ * current->start_stack, so we round each of these in order to be able
	32	+ * to write an integer number of pages.
	33	+ */
	34	+struct user {
	35	+ struct pt_regs regs; /* entire machine state */
	36	+ size_t u_tsize; /* text size (pages) */
	37	+ size_t u_dsize; /* data size (pages) */
	38	+ size_t u_ssize; /* stack size (pages) */
	39	+ unsigned long start_code; /* text starting address */
	40	+ unsigned long start_data; /* data starting address */
	41	+ unsigned long start_stack; /* stack starting address */
	42	+ long int signal; /* signal causing core dump */
	43	+ struct regs * u_ar0; /* help gdb find registers */
	44	+ unsigned long magic; /* identifies a core file */
	45	+ char u_comm[32]; /* user command name */
	46	+};
	47	+
	48	+#define NBPG PAGE_SIZE
	49	+#define UPAGES 1
	50	+#define HOST_TEXT_START_ADDR (u.start_code)
	51	+#define HOST_DATA_START_ADDR (u.start_data)
	52	+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
	53	+
	54	+#endif /* __KERNEL__ */
	55	+#endif /* _ASM_POWERPC_USER_H */

include/asm-ppc/msgbuf.h

View file @ dd56fdf

1		-#ifndef _PPC_MSGBUF_H
2		-#define _PPC_MSGBUF_H
3		-
4		-/*
5		- * The msqid64_ds structure for the PPC architecture.
6		- */
7		-
8		-struct msqid64_ds {
9		- struct ipc64_perm msg_perm;
10		- unsigned int __unused1;
11		- __kernel_time_t msg_stime; /* last msgsnd time */
12		- unsigned int __unused2;
13		- __kernel_time_t msg_rtime; /* last msgrcv time */
14		- unsigned int __unused3;
15		- __kernel_time_t msg_ctime; /* last change time */
16		- unsigned long msg_cbytes; /* current number of bytes on queue */
17		- unsigned long msg_qnum; /* number of messages in queue */
18		- unsigned long msg_qbytes; /* max number of bytes on queue */
19		- __kernel_pid_t msg_lspid; /* pid of last msgsnd */
20		- __kernel_pid_t msg_lrpid; /* last receive pid */
21		- unsigned long __unused4;
22		- unsigned long __unused5;
23		-};
24		-
25		-#endif /* _PPC_MSGBUF_H */

include/asm-ppc/param.h

View file @ dd56fdf

1		-#ifndef _ASM_PPC_PARAM_H
2		-#define _ASM_PPC_PARAM_H
3		-
4		-#include <linux/config.h>
5		-
6		-#ifdef __KERNEL__
7		-#define HZ CONFIG_HZ /* internal timer frequency */
8		-#define USER_HZ 100 /* for user interfaces in "ticks" */
9		-#define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */
10		-#endif /* __KERNEL__ */
11		-
12		-#ifndef HZ
13		-#define HZ 100
14		-#endif
15		-
16		-#define EXEC_PAGESIZE 4096
17		-
18		-#ifndef NOGROUP
19		-#define NOGROUP (-1)
20		-#endif
21		-
22		-#define MAXHOSTNAMELEN 64 /* max length of hostname */
23		-
24		-#endif

include/asm-ppc/setup.h

View file @ dd56fdf

1		-#ifdef __KERNEL__
2		-#ifndef _PPC_SETUP_H
3		-#define _PPC_SETUP_H
4		-
5		-#define m68k_num_memory num_memory
6		-#define m68k_memory memory
7		-
8		-#include <asm-m68k/setup.h>
9		-/* We have a bigger command line buffer. */
10		-#undef COMMAND_LINE_SIZE
11		-#define COMMAND_LINE_SIZE 512
12		-
13		-#endif /* _PPC_SETUP_H */
14		-#endif /* __KERNEL__ */

include/asm-ppc/timex.h

View file @ dd56fdf

1		-/*
2		- * include/asm-ppc/timex.h
3		- *
4		- * ppc architecture timex specifications
5		- */
6		-#ifdef __KERNEL__
7		-#ifndef _ASMppc_TIMEX_H
8		-#define _ASMppc_TIMEX_H
9		-
10		-#include <linux/config.h>
11		-#include <asm/cputable.h>
12		-
13		-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
14		-
15		-typedef unsigned long cycles_t;
16		-
17		-/*
18		- * For the "cycle" counter we use the timebase lower half.
19		- * Currently only used on SMP.
20		- */
21		-
22		-static inline cycles_t get_cycles(void)
23		-{
24		- cycles_t ret = 0;
25		-
26		- __asm__ __volatile__(
27		- "98: mftb %0\n"
28		- "99:\n"
29		- ".section __ftr_fixup,\"a\"\n"
30		- " .long %1\n"
31		- " .long 0\n"
32		- " .long 98b\n"
33		- " .long 99b\n"
34		- ".previous"
35		- : "=r" (ret) : "i" (CPU_FTR_601));
36		- return ret;
37		-}
38		-
39		-#endif
40		-#endif /* __KERNEL__ */

include/asm-ppc/topology.h

View file @ dd56fdf

1		-#ifndef _ASM_PPC_TOPOLOGY_H
2		-#define _ASM_PPC_TOPOLOGY_H
3		-
4		-#include <asm-generic/topology.h>
5		-
6		-#endif /* _ASM_PPC_TOPOLOGY_H */

include/asm-ppc/user.h

View file @ dd56fdf

1		-#ifdef __KERNEL__
2		-#ifndef _PPC_USER_H
3		-#define _PPC_USER_H
4		-
5		-/* Adapted from <asm-alpha/user.h> */
6		-
7		-#include <linux/ptrace.h>
8		-#include <asm/page.h>
9		-
10		-/*
11		- * Core file format: The core file is written in such a way that gdb
12		- * can understand it and provide useful information to the user (under
13		- * linux we use the `trad-core' bfd, NOT the osf-core). The file contents
14		- * are as follows:
15		- *
16		- * upage: 1 page consisting of a user struct that tells gdb
17		- * what is present in the file. Directly after this is a
18		- * copy of the task_struct, which is currently not used by gdb,
19		- * but it may come in handy at some point. All of the registers
20		- * are stored as part of the upage. The upage should always be
21		- * only one page long.
22		- * data: The data segment follows next. We use current->end_text to
23		- * current->brk to pick up all of the user variables, plus any memory
24		- * that may have been sbrk'ed. No attempt is made to determine if a
25		- * page is demand-zero or if a page is totally unused, we just cover
26		- * the entire range. All of the addresses are rounded in such a way
27		- * that an integral number of pages is written.
28		- * stack: We need the stack information in order to get a meaningful
29		- * backtrace. We need to write the data from usp to
30		- * current->start_stack, so we round each of these in order to be able
31		- * to write an integer number of pages.
32		- */
33		-struct user {
34		- struct pt_regs regs; /* entire machine state */
35		- size_t u_tsize; /* text size (pages) */
36		- size_t u_dsize; /* data size (pages) */
37		- size_t u_ssize; /* stack size (pages) */
38		- unsigned long start_code; /* text starting address */
39		- unsigned long start_data; /* data starting address */
40		- unsigned long start_stack; /* stack starting address */
41		- long int signal; /* signal causing core dump */
42		- struct regs * u_ar0; /* help gdb find registers */
43		- unsigned long magic; /* identifies a core file */
44		- char u_comm[32]; /* user command name */
45		-};
46		-
47		-#define NBPG PAGE_SIZE
48		-#define UPAGES 1
49		-#define HOST_TEXT_START_ADDR (u.start_code)
50		-#define HOST_DATA_START_ADDR (u.start_data)
51		-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
52		-
53		-#endif /* _PPC_USER_H */
54		-#endif /* __KERNEL__ */

include/asm-ppc64/msgbuf.h

View file @ dd56fdf

1		-#ifndef _PPC64_MSGBUF_H
2		-#define _PPC64_MSGBUF_H
3		-
4		-/*
5		- * The msqid64_ds structure for the PPC architecture.
6		- *
7		- * This program is free software; you can redistribute it and/or
8		- * modify it under the terms of the GNU General Public License
9		- * as published by the Free Software Foundation; either version
10		- * 2 of the License, or (at your option) any later version.
11		- */
12		-
13		-struct msqid64_ds {
14		- struct ipc64_perm msg_perm;
15		- __kernel_time_t msg_stime; /* last msgsnd time */
16		- __kernel_time_t msg_rtime; /* last msgrcv time */
17		- __kernel_time_t msg_ctime; /* last change time */
18		- unsigned long msg_cbytes; /* current number of bytes on queue */
19		- unsigned long msg_qnum; /* number of messages in queue */
20		- unsigned long msg_qbytes; /* max number of bytes on queue */
21		- __kernel_pid_t msg_lspid; /* pid of last msgsnd */
22		- __kernel_pid_t msg_lrpid; /* last receive pid */
23		- unsigned long __unused1;
24		- unsigned long __unused2;
25		-};
26		-
27		-#endif /* _PPC64_MSGBUF_H */

include/asm-ppc64/param.h

View file @ dd56fdf

1		-#ifndef _ASM_PPC64_PARAM_H
2		-#define _ASM_PPC64_PARAM_H
3		-
4		-#include <linux/config.h>
5		-
6		-/*
7		- * This program is free software; you can redistribute it and/or
8		- * modify it under the terms of the GNU General Public License
9		- * as published by the Free Software Foundation; either version
10		- * 2 of the License, or (at your option) any later version.
11		- */
12		-
13		-#ifdef __KERNEL__
14		-# define HZ CONFIG_HZ /* Internal kernel timer frequency */
15		-# define USER_HZ 100 /* .. some user interfaces are in "ticks" */
16		-# define CLOCKS_PER_SEC (USER_HZ) /* like times() */
17		-#endif
18		-
19		-#ifndef HZ
20		-#define HZ 100
21		-#endif
22		-
23		-#define EXEC_PAGESIZE 4096
24		-
25		-#ifndef NOGROUP
26		-#define NOGROUP (-1)
27		-#endif
28		-
29		-#define MAXHOSTNAMELEN 64 /* max length of hostname */
30		-
31		-#endif /* _ASM_PPC64_PARAM_H */

include/asm-ppc64/setup.h

View file @ dd56fdf

1		-#ifndef _PPC_SETUP_H
2		-#define _PPC_SETUP_H
3		-
4		-#define COMMAND_LINE_SIZE 512
5		-
6		-#endif /* _PPC_SETUP_H */

include/asm-ppc64/timex.h

View file @ dd56fdf

1		-/*
2		- * linux/include/asm-ppc/timex.h
3		- *
4		- * PPC64 architecture timex specifications
5		- *
6		- * This program is free software; you can redistribute it and/or
7		- * modify it under the terms of the GNU General Public License
8		- * as published by the Free Software Foundation; either version
9		- * 2 of the License, or (at your option) any later version.
10		- */
11		-#ifndef _ASMPPC64_TIMEX_H
12		-#define _ASMPPC64_TIMEX_H
13		-
14		-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
15		-
16		-typedef unsigned long cycles_t;
17		-
18		-static inline cycles_t get_cycles(void)
19		-{
20		- cycles_t ret;
21		-
22		- __asm__ __volatile__("mftb %0" : "=r" (ret) : );
23		- return ret;
24		-}
25		-
26		-#endif

include/asm-ppc64/topology.h

View file @ dd56fdf

1		-#ifndef _ASM_PPC64_TOPOLOGY_H
2		-#define _ASM_PPC64_TOPOLOGY_H
3		-
4		-#include <linux/config.h>
5		-#include <asm/mmzone.h>
6		-
7		-#ifdef CONFIG_NUMA
8		-
9		-static inline int cpu_to_node(int cpu)
10		-{
11		- int node;
12		-
13		- node = numa_cpu_lookup_table[cpu];
14		-
15		-#ifdef DEBUG_NUMA
16		- BUG_ON(node == -1);
17		-#endif
18		-
19		- return node;
20		-}
21		-
22		-#define parent_node(node) (node)
23		-
24		-static inline cpumask_t node_to_cpumask(int node)
25		-{
26		- return numa_cpumask_lookup_table[node];
27		-}
28		-
29		-static inline int node_to_first_cpu(int node)
30		-{
31		- cpumask_t tmp;
32		- tmp = node_to_cpumask(node);
33		- return first_cpu(tmp);
34		-}
35		-
36		-#define pcibus_to_node(node) (-1)
37		-#define pcibus_to_cpumask(bus) (cpu_online_map)
38		-
39		-#define nr_cpus_node(node) (nr_cpus_in_node[node])
40		-
41		-/* sched_domains SD_NODE_INIT for PPC64 machines */
42		-#define SD_NODE_INIT (struct sched_domain) { \
43		- .span = CPU_MASK_NONE, \
44		- .parent = NULL, \
45		- .groups = NULL, \
46		- .min_interval = 8, \
47		- .max_interval = 32, \
48		- .busy_factor = 32, \
49		- .imbalance_pct = 125, \
50		- .cache_hot_time = (10*1000000), \
51		- .cache_nice_tries = 1, \
52		- .per_cpu_gain = 100, \
53		- .flags = SD_LOAD_BALANCE \
54		- \| SD_BALANCE_EXEC \
55		- \| SD_BALANCE_NEWIDLE \
56		- \| SD_WAKE_IDLE \
57		- \| SD_WAKE_BALANCE, \
58		- .last_balance = jiffies, \
59		- .balance_interval = 1, \
60		- .nr_balance_failed = 0, \
61		-}
62		-
63		-#else
64		-
65		-#include <asm-generic/topology.h>
66		-
67		-#endif /* CONFIG_NUMA */
68		-
69		-#endif /* _ASM_PPC64_TOPOLOGY_H */

include/asm-ppc64/user.h

View file @ dd56fdf

1		-#ifndef _PPC_USER_H
2		-#define _PPC_USER_H
3		-
4		-/* Adapted from <asm-alpha/user.h>
5		- *
6		- * This program is free software; you can redistribute it and/or
7		- * modify it under the terms of the GNU General Public License
8		- * as published by the Free Software Foundation; either version
9		- * 2 of the License, or (at your option) any later version.
10		- */
11		-
12		-#include <asm/ptrace.h>
13		-#include <asm/page.h>
14		-
15		-/*
16		- * Core file format: The core file is written in such a way that gdb
17		- * can understand it and provide useful information to the user (under
18		- * linux we use the `trad-core' bfd, NOT the osf-core). The file contents
19		- * are as follows:
20		- *
21		- * upage: 1 page consisting of a user struct that tells gdb
22		- * what is present in the file. Directly after this is a
23		- * copy of the task_struct, which is currently not used by gdb,
24		- * but it may come in handy at some point. All of the registers
25		- * are stored as part of the upage. The upage should always be
26		- * only one page long.
27		- * data: The data segment follows next. We use current->end_text to
28		- * current->brk to pick up all of the user variables, plus any memory
29		- * that may have been sbrk'ed. No attempt is made to determine if a
30		- * page is demand-zero or if a page is totally unused, we just cover
31		- * the entire range. All of the addresses are rounded in such a way
32		- * that an integral number of pages is written.
33		- * stack: We need the stack information in order to get a meaningful
34		- * backtrace. We need to write the data from usp to
35		- * current->start_stack, so we round each of these in order to be able
36		- * to write an integer number of pages.
37		- */
38		-struct user {
39		- struct pt_regs regs; /* entire machine state */
40		- size_t u_tsize; /* text size (pages) */
41		- size_t u_dsize; /* data size (pages) */
42		- size_t u_ssize; /* stack size (pages) */
43		- unsigned long start_code; /* text starting address */
44		- unsigned long start_data; /* data starting address */
45		- unsigned long start_stack; /* stack starting address */
46		- long int signal; /* signal causing core dump */
47		- struct regs * u_ar0; /* help gdb find registers */
48		- unsigned long magic; /* identifies a core file */
49		- char u_comm[32]; /* user command name */
50		-};
51		-
52		-#define NBPG PAGE_SIZE
53		-#define UPAGES 1
54		-#define HOST_TEXT_START_ADDR (u.start_code)
55		-#define HOST_DATA_START_ADDR (u.start_data)
56		-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
57		-
58		-#endif /* _PPC_USER_H */