* kgdb interdiff for i386.patch
@ 2004-02-11 14:46 Amit S. Kale
0 siblings, 0 replies; only message in thread
From: Amit S. Kale @ 2004-02-11 14:46 UTC (permalink / raw)
To: KGDB bugreports, Linux Kernel; +Cc: George Anzinger, Tom Rini, Pavel Machek
Hi,
Here is interdiff for file i386.patch
--- archive/2.1.0/linux-2.6.1-kgdb-2.1.0/i386.patch 2004-01-21
22:05:40.000000000 +0530
+++ cvs/kgdb-2/i386.patch 2004-02-11 16:01:04.000000000 +0530
@@ -1,7 +1,7 @@
-diff -Naurp linux-2.6.1/arch/i386/Kconfig
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/Kconfig
---- linux-2.6.1/arch/i386/Kconfig 2004-01-10 11:01:35.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/Kconfig 2004-01-12
19:11:34.000000000 +0530
-@@ -1252,6 +1252,37 @@ config DEBUG_SPINLOCK_SLEEP
+diff -Naurp linux-2.6.2/arch/i386/Kconfig
linux-2.6.2-kgdb-i386/arch/i386/Kconfig
+--- linux-2.6.2/arch/i386/Kconfig 2004-02-10 13:01:22.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/Kconfig 2004-02-10 13:11:38.000000000
+0530
+@@ -1253,6 +1253,37 @@ config DEBUG_SPINLOCK_SLEEP
If you say Y here, various routines which may sleep will become very
noisy if they are called with a spinlock held.
@@ -39,9 +39,9 @@
config FRAME_POINTER
bool "Compile the kernel with frame pointers"
help
-diff -Naurp linux-2.6.1/arch/i386/kernel/entry.S
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/entry.S
---- linux-2.6.1/arch/i386/kernel/entry.S 2003-11-24 07:01:26.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/entry.S 2004-01-20
20:03:48.000000000 +0530
+diff -Naurp linux-2.6.2/arch/i386/kernel/entry.S
linux-2.6.2-kgdb-i386/arch/i386/kernel/entry.S
+--- linux-2.6.2/arch/i386/kernel/entry.S 2003-11-24 07:01:26.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/kernel/entry.S 2004-02-10
13:11:38.000000000 +0530
@@ -226,7 +226,7 @@ need_resched:
jz restore_all
movl $PREEMPT_ACTIVE,TI_PRE_COUNT(%ebp)
@@ -110,10 +110,10 @@
.data
ENTRY(sys_call_table)
.long sys_restart_syscall /* 0 - old "setup()" system call, used for
restarting */
-diff -Naurp linux-2.6.1/arch/i386/kernel/i386-stub.c
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/i386-stub.c
---- linux-2.6.1/arch/i386/kernel/i386-stub.c 1970-01-01 05:30:00.000000000
+0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/i386-stub.c 2004-01-12
19:11:34.000000000 +0530
-@@ -0,0 +1,457 @@
+diff -Naurp linux-2.6.2/arch/i386/kernel/i386-stub.c
linux-2.6.2-kgdb-i386/arch/i386/kernel/i386-stub.c
+--- linux-2.6.2/arch/i386/kernel/i386-stub.c 1970-01-01 05:30:00.000000000
+0530
++++ linux-2.6.2-kgdb-i386/arch/i386/kernel/i386-stub.c 2004-02-10
18:35:49.000000000 +0530
+@@ -0,0 +1,373 @@
+/*
+ *
+ * This program is free software; you can redistribute it and/or modify it
@@ -131,82 +131,13 @@
+/*
+ * Copyright (C) 2000-2001 VERITAS Software Corporation.
+ */
-+/****************************************************************************
-+ * Header: remcom.c,v 1.34 91/03/09 12:29:49 glenne Exp $
-+ *
-+ * Module name: remcom.c $
-+ * Revision: 1.34 $
-+ * Date: 91/03/09 12:29:49 $
++/*
+ * Contributor: Lake Stevens Instrument Division$
-+ *
-+ * Description: low level support for gdb debugger. $
-+ *
-+ * Considerations: only works on target hardware $
-+ *
+ * Written by: Glenn Engel $
+ * Updated by: Amit Kale<akale@veritas.com>
-+ * ModuleState: Experimental $
-+ *
-+ * NOTES: See Below $
-+ *
+ * Modified for 386 by Jim Kingdon, Cygnus Support.
+ * Origianl kgdb, compatibility with 2.1.xx kernel by David Grothe
<dave@gcom.com>
-+ * Integrated into 2.2.5 kernel by Tigran Aivazian <tigran@sco.com>
-+ * thread support,
-+ * support for multiple processors,
-+ * support for ia-32(x86) hardware debugging,
-+ * Console support,
-+ * handling nmi watchdog
-+ * Amit S. Kale ( amitkale@emsyssoft.com )
-+ *
-+ *
-+ * To enable debugger support, two things need to happen. One, a
-+ * call to set_debug_traps() is necessary in order to allow any breakpoints
-+ * or error conditions to be properly intercepted and reported to gdb.
-+ * Two, a breakpoint needs to be generated to begin communication. This
-+ * is most easily accomplished by a call to breakpoint(). Breakpoint()
-+ * simulates a breakpoint by executing an int 3.
-+ *
-+ *************
-+ *
-+ * The following gdb commands are supported:
-+ *
-+ * command function Return value
-+ *
-+ * g return the value of the CPU registers hex data or ENN
-+ * G set the value of the CPU registers OK or ENN
-+ *
-+ * mAA..AA,LLLL Read LLLL bytes at address AA..AA hex data or ENN
-+ * MAA..AA,LLLL: Write LLLL bytes at address AA.AA OK or ENN
-+ *
-+ * c Resume at current address SNN ( signal
NN)
-+ * cAA..AA Continue at address AA..AA SNN
-+ *
-+ * s Step one instruction SNN
-+ * sAA..AA Step one instruction from AA..AA SNN
-+ *
-+ * k kill
-+ *
-+ * ? What was the last sigval ? SNN (signal NN)
-+ *
-+ * All commands and responses are sent with a packet which includes a
-+ * checksum. A packet consists of
-+ *
-+ * $<packet info>#<checksum>.
-+ *
-+ * where
-+ * <packet info> :: <characters representing the command or response>
-+ * <checksum> :: < two hex digits computed as modulo 256 sum of
<packetinfo>>
-+ *
-+ * When a packet is received, it is first acknowledged with either '+' or
'-'.
-+ * '+' indicates a successful transfer. '-' indicates a failed transfer.
-+ *
-+ * Example:
-+ *
-+ * Host: Reply:
-+ * $m0,10#2a +$00010203040506070809101112131415#42
-+ *
-+
****************************************************************************/
++ */
+
+#include <linux/string.h>
+#include <linux/kernel.h>
@@ -234,7 +165,7 @@
+#error change the definition of slavecpulocks
+#endif
+
-+static void i386_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs
*regs)
++void regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
+{
+ gdb_regs[_EAX] = regs->eax;
+ gdb_regs[_EBX] = regs->ebx;
@@ -254,7 +185,7 @@
+ gdb_regs[ _GS] = 0xFFFF;
+}
+
-+static void i386_sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct
task_struct *p)
++void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct
*p)
+{
+ gdb_regs[_EAX] = 0;
+ gdb_regs[_EBX] = 0;
@@ -274,7 +205,7 @@
+ gdb_regs[_GS] = 0xFFFF;
+}
+
-+static void i386_gdb_regs_to_regs(unsigned long *gdb_regs, struct pt_regs
*regs)
++void gdb_regs_to_regs(unsigned long *gdb_regs, struct pt_regs *regs)
+{
+ regs->eax = gdb_regs[_EAX] ;
+ regs->ebx = gdb_regs[_EBX] ;
@@ -308,7 +239,7 @@
+enabled:0}, {
+enabled:0}};
+
-+void i386_correct_hw_break(void)
++void kgdb_correct_hw_break(void)
+{
+ int breakno;
+ int correctit;
@@ -367,7 +298,7 @@
+ }
+}
+
-+int i386_remove_hw_break(unsigned long addr, int type)
++int kgdb_remove_hw_break(unsigned long addr, int type)
+{
+ int i, idx = -1;
+ for (i = 0; i < 4; i ++) {
@@ -383,7 +314,7 @@
+ return 0;
+}
+
-+int i386_set_hw_break(unsigned long addr, int type)
++int kgdb_set_hw_break(unsigned long addr, int type)
+{
+ int i, idx = -1;
+ for (i = 0; i < 4; i ++) {
@@ -424,7 +355,7 @@
+ return 0;
+}
+
-+static void i386_printexceptioninfo(int exceptionNo, int errorcode, char
*buffer)
++void kgdb_printexceptioninfo(int exceptionNo, int errorcode, char *buffer)
+{
+ unsigned dr6;
+ int i;
@@ -454,21 +385,22 @@
+ return;
+}
+
-+static void i386_disable_hw_debug(struct pt_regs *regs)
++void kgdb_disable_hw_debug(struct pt_regs *regs)
+{
+ /* Disable hardware debugging while we are in kgdb */
+ asm volatile("movl %0,%%db7": /* no output */ : "r"(0));
+}
+
-+static void i386_post_master_code(struct pt_regs *regs, int eVector, int
err_code)
++void kgdb_post_master_code(struct pt_regs *regs, int eVector, int err_code)
+{
+ /* Master processor is completely in the debugger */
+ gdb_i386vector = eVector;
+ gdb_i386errcode = err_code;
+}
-+static int i386_handle_exception(int exceptionVector, int signo, int
err_code,
-+ char *remcomInBuffer, char
*remcomOutBuffer,
-+ struct pt_regs *linux_regs)
++
++int kgdb_arch_handle_exception(int exceptionVector, int signo,
++ int err_code, char *remcomInBuffer, char *remcomOutBuffer,
++ struct pt_regs *linux_regs)
+{
+ long addr, length;
+ long breakno, breaktype;
@@ -514,7 +446,7 @@
+ }
+ }
+ }
-+ i386_correct_hw_break();
++ kgdb_correct_hw_break();
+ asm volatile ("movl %0, %%db6\n"::"r" (0));
+
+ return (0);
@@ -551,29 +483,13 @@
+ return -1; /* this means that we do not want to exit from the handler */
+}
+
-+int i386_kgdb_init(void)
-+{
-+ return 0;
-+}
-+
+struct kgdb_arch arch_kgdb_ops = {
+ .gdb_bpt_instr = {0xcc},
+ .flags = KGDB_HW_BREAKPOINT,
-+ .kgdb_init = i386_kgdb_init,
-+ .regs_to_gdb_regs = i386_regs_to_gdb_regs,
-+ .sleeping_thread_to_gdb_regs = i386_sleeping_thread_to_gdb_regs,
-+ .gdb_regs_to_regs = i386_gdb_regs_to_regs,
-+ .printexceptioninfo = i386_printexceptioninfo,
-+ .disable_hw_debug = i386_disable_hw_debug,
-+ .post_master_code = i386_post_master_code,
-+ .handle_exception = i386_handle_exception,
-+ .set_break = i386_set_hw_break,
-+ .remove_break = i386_remove_hw_break,
-+ .correct_hw_break = i386_correct_hw_break,
+};
-diff -Naurp linux-2.6.1/arch/i386/kernel/irq.c
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/irq.c
---- linux-2.6.1/arch/i386/kernel/irq.c 2004-01-10 11:01:35.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/irq.c 2004-01-20
20:04:48.000000000 +0530
+diff -Naurp linux-2.6.2/arch/i386/kernel/irq.c
linux-2.6.2-kgdb-i386/arch/i386/kernel/irq.c
+--- linux-2.6.2/arch/i386/kernel/irq.c 2004-01-10 11:01:35.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/kernel/irq.c 2004-02-10
13:11:39.000000000 +0530
@@ -410,7 +410,7 @@ void enable_irq(unsigned int irq)
* SMP cross-CPU interrupts have their own specific
* handlers).
@@ -601,9 +517,9 @@
spin_lock(&desc->lock);
if (!noirqdebug)
note_interrupt(irq, desc, action_ret);
-diff -Naurp linux-2.6.1/arch/i386/kernel/Makefile
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/Makefile
---- linux-2.6.1/arch/i386/kernel/Makefile 2004-01-10 11:01:35.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/Makefile 2004-01-12
19:11:34.000000000 +0530
+diff -Naurp linux-2.6.2/arch/i386/kernel/Makefile
linux-2.6.2-kgdb-i386/arch/i386/kernel/Makefile
+--- linux-2.6.2/arch/i386/kernel/Makefile 2004-01-10 11:01:35.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/kernel/Makefile 2004-02-10
13:11:39.000000000 +0530
@@ -31,6 +31,7 @@ obj-y += sysenter.o vsyscall.o
obj-$(CONFIG_ACPI_SRAT) += srat.o
obj-$(CONFIG_HPET_TIMER) += time_hpet.o
@@ -612,9 +528,9 @@
EXTRA_AFLAGS := -traditional
-diff -Naurp linux-2.6.1/arch/i386/kernel/nmi.c
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/nmi.c
---- linux-2.6.1/arch/i386/kernel/nmi.c 2003-11-24 07:02:02.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/nmi.c 2004-01-12
19:11:34.000000000 +0530
+diff -Naurp linux-2.6.2/arch/i386/kernel/nmi.c
linux-2.6.2-kgdb-i386/arch/i386/kernel/nmi.c
+--- linux-2.6.2/arch/i386/kernel/nmi.c 2003-11-24 07:02:02.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/kernel/nmi.c 2004-02-10
13:11:39.000000000 +0530
@@ -25,6 +25,7 @@
#include <linux/module.h>
#include <linux/nmi.h>
@@ -650,9 +566,9 @@
spin_lock(&nmi_print_lock);
/*
* We are in trouble anyway, lets at least try
-diff -Naurp linux-2.6.1/arch/i386/kernel/signal.c
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/signal.c
---- linux-2.6.1/arch/i386/kernel/signal.c 2003-11-24 07:01:52.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/signal.c 2004-01-12
19:11:34.000000000 +0530
+diff -Naurp linux-2.6.2/arch/i386/kernel/signal.c
linux-2.6.2-kgdb-i386/arch/i386/kernel/signal.c
+--- linux-2.6.2/arch/i386/kernel/signal.c 2003-11-24 07:01:52.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/kernel/signal.c 2004-02-10
13:11:39.000000000 +0530
@@ -580,7 +580,8 @@ int do_signal(struct pt_regs *regs, sigs
* have been cleared if the watchpoint triggered
* inside the kernel.
@@ -663,9 +579,9 @@
/* Whee! Actually deliver the signal. */
handle_signal(signr, &info, oldset, regs);
-diff -Naurp linux-2.6.1/arch/i386/kernel/traps.c
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/traps.c
---- linux-2.6.1/arch/i386/kernel/traps.c 2003-11-24 07:01:14.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/kernel/traps.c 2004-01-12
19:11:34.000000000 +0530
+diff -Naurp linux-2.6.2/arch/i386/kernel/traps.c
linux-2.6.2-kgdb-i386/arch/i386/kernel/traps.c
+--- linux-2.6.2/arch/i386/kernel/traps.c 2003-11-24 07:01:14.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/kernel/traps.c 2004-02-10
13:11:39.000000000 +0530
@@ -51,6 +51,7 @@
#include <linux/irq.h>
@@ -737,9 +653,9 @@
return;
debug_vm86:
-diff -Naurp linux-2.6.1/arch/i386/mm/fault.c
linux-2.6.1-kgdb-2.1.0-i386/arch/i386/mm/fault.c
---- linux-2.6.1/arch/i386/mm/fault.c 2003-12-26 18:33:55.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/arch/i386/mm/fault.c 2004-01-12
19:11:35.000000000 +0530
+diff -Naurp linux-2.6.2/arch/i386/mm/fault.c
linux-2.6.2-kgdb-i386/arch/i386/mm/fault.c
+--- linux-2.6.2/arch/i386/mm/fault.c 2003-12-26 18:33:55.000000000 +0530
++++ linux-2.6.2-kgdb-i386/arch/i386/mm/fault.c 2004-02-10 16:04:35.000000000
+0530
@@ -2,6 +2,11 @@
* linux/arch/i386/mm/fault.c
*
@@ -760,20 +676,7 @@
#include <asm/system.h>
#include <asm/uaccess.h>
-@@ -262,6 +268,12 @@ asmlinkage void do_page_fault(struct pt_
- if (in_atomic() || !mm)
- goto bad_area_nosemaphore;
-
-+ if (debugger_memerr_expected) {
-+ /* This fault was caused by memory access through a debugger.
-+ * Don't handle it like user accesses */
-+ goto no_context;
-+ }
-+
- down_read(&mm->mmap_sem);
-
- vma = find_vma(mm, address);
-@@ -399,6 +411,8 @@ no_context:
+@@ -399,6 +405,8 @@ no_context:
if (is_prefetch(regs, address))
return;
@@ -782,7 +685,7 @@
/*
* Oops. The kernel tried to access some bad page. We'll have to
* terminate things with extreme prejudice.
-@@ -406,6 +420,7 @@ no_context:
+@@ -406,6 +414,7 @@ no_context:
bust_spinlocks(1);
@@ -790,9 +693,9 @@
if (address < PAGE_SIZE)
printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
else
-diff -Naurp linux-2.6.1/include/asm-i386/kgdb.h
linux-2.6.1-kgdb-2.1.0-i386/include/asm-i386/kgdb.h
---- linux-2.6.1/include/asm-i386/kgdb.h 1970-01-01 05:30:00.000000000 +0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/include/asm-i386/kgdb.h 2004-01-12
19:11:35.000000000 +0530
+diff -Naurp linux-2.6.2/include/asm-i386/kgdb.h
linux-2.6.2-kgdb-i386/include/asm-i386/kgdb.h
+--- linux-2.6.2/include/asm-i386/kgdb.h 1970-01-01 05:30:00.000000000 +0530
++++ linux-2.6.2-kgdb-i386/include/asm-i386/kgdb.h 2004-02-11
13:36:58.000000000 +0530
@@ -0,0 +1,49 @@
+#ifndef _ASM_KGDB_H_
+#define _ASM_KGDB_H_
@@ -843,9 +746,9 @@
+#define BREAK_INSTR_SIZE 1
+
+#endif /* _ASM_KGDB_H_ */
-diff -Naurp linux-2.6.1/include/asm-i386/processor.h
linux-2.6.1-kgdb-2.1.0-i386/include/asm-i386/processor.h
---- linux-2.6.1/include/asm-i386/processor.h 2004-01-10 11:01:47.000000000
+0530
-+++ linux-2.6.1-kgdb-2.1.0-i386/include/asm-i386/processor.h 2004-01-12
19:11:35.000000000 +0530
+diff -Naurp linux-2.6.2/include/asm-i386/processor.h
linux-2.6.2-kgdb-i386/include/asm-i386/processor.h
+--- linux-2.6.2/include/asm-i386/processor.h 2004-01-10 11:01:47.000000000
+0530
++++ linux-2.6.2-kgdb-i386/include/asm-i386/processor.h 2004-02-10
13:11:39.000000000 +0530
@@ -393,6 +393,7 @@ struct tss_struct {
* be within the limit.
*/
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2004-02-11 14:46 kgdb interdiff for i386.patch Amit S. Kale
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