* [PATCH] 2.5.32-bug
@ 2002-08-30 21:39 Russell King
2002-08-31 12:00 ` Ingo Oeser
0 siblings, 1 reply; 4+ messages in thread
From: Russell King @ 2002-08-30 21:39 UTC (permalink / raw)
To: LKML
This patch appears not to be in 2.5.32, but applies cleanly.
This patch moves BUG() and PAGE_BUG() from asm/page.h into asm/bug.h.
We also fix up linux/dcache.h, which included asm/page.h for the sole
purpose of getting the BUG() definition.
Since linux/kernel.h makes use of BUG(), asm/bug.h is included there
as well.
Please review. Thanks.
include/asm-alpha/bug.h | 14 ++++++++++++++
include/asm-alpha/page.h | 8 --------
include/asm-cris/bug.h | 12 ++++++++++++
include/asm-cris/page.h | 12 ------------
include/asm-i386/bug.h | 27 +++++++++++++++++++++++++++
include/asm-i386/page.h | 21 ---------------------
include/asm-ia64/bug.h | 7 +++++++
include/asm-ia64/page.h | 8 --------
include/asm-m68k/bug.h | 28 ++++++++++++++++++++++++++++
include/asm-m68k/page.h | 22 ----------------------
include/asm-mips/bug.h | 8 ++++++++
include/asm-mips/page.h | 2 --
include/asm-mips64/bug.h | 7 +++++++
include/asm-mips64/page.h | 2 --
include/asm-parisc/bug.h | 18 ++++++++++++++++++
include/asm-parisc/page.h | 14 --------------
include/asm-ppc/bug.h | 20 ++++++++++++++++++++
include/asm-ppc/page.h | 13 -------------
include/asm-s390/bug.h | 13 +++++++++++++
include/asm-s390/page.h | 9 ---------
include/asm-s390x/bug.h | 13 +++++++++++++
include/asm-s390x/page.h | 9 ---------
include/asm-sh/bug.h | 16 ++++++++++++++++
include/asm-sh/page.h | 12 ------------
include/asm-sparc/bug.h | 25 +++++++++++++++++++++++++
include/asm-sparc/page.h | 19 -------------------
include/asm-sparc64/bug.h | 17 +++++++++++++++++
include/asm-sparc64/page.h | 11 -----------
include/linux/dcache.h | 2 +-
include/linux/kernel.h | 1 +
30 files changed, 227 insertions, 163 deletions
diff -urN orig/include/asm-alpha/bug.h linux/include/asm-alpha/bug.h
--- orig/include/asm-alpha/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-alpha/bug.h Sun Feb 24 16:51:44 2002
@@ -0,0 +1,14 @@
+#ifndef _ALPHA_BUG_H
+#define _ALPHA_BUG_H
+
+#include <asm/pal.h>
+
+/* ??? Would be nice to use .gprel32 here, but we can't be sure that the
+ function loaded the GP, so this could fail in modules. */
+#define BUG() \
+ __asm__ __volatile__("call_pal %0 # bugchk\n\t"".long %1\n\t.8byte %2" \
+ : : "i" (PAL_bugchk), "i"(__LINE__), "i"(__FILE__))
+
+#define PAGE_BUG(page) BUG()
+
+#endif
diff -urN orig/include/asm-alpha/page.h linux/include/asm-alpha/page.h
--- orig/include/asm-alpha/page.h Tue Mar 5 19:56:30 2002
+++ linux/include/asm-alpha/page.h Sun Feb 24 16:47:52 2002
@@ -58,14 +58,6 @@
#define __pgprot(x) (x)
#endif /* STRICT_MM_TYPECHECKS */
-
-/* ??? Would be nice to use .gprel32 here, but we can't be sure that the
- function loaded the GP, so this could fail in modules. */
-#define BUG() \
- __asm__ __volatile__("call_pal %0 # bugchk\n\t"".long %1\n\t.8byte %2" \
- : : "i" (PAL_bugchk), "i"(__LINE__), "i"(__FILE__))
-
-#define PAGE_BUG(page) BUG()
/* Pure 2^n version of get_order */
extern __inline__ int get_order(unsigned long size)
diff -urN orig/include/asm-cris/bug.h linux/include/asm-cris/bug.h
--- orig/include/asm-cris/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-cris/bug.h Sun Jan 6 11:46:09 2002
@@ -0,0 +1,12 @@
+#ifndef _CRIS_BUG_H
+#define _CRIS_BUG_H
+
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+} while (0)
+
+#define PAGE_BUG(page) do { \
+ BUG(); \
+} while (0)
+
+#endif
diff -urN orig/include/asm-cris/page.h linux/include/asm-cris/page.h
--- orig/include/asm-cris/page.h Tue Mar 5 19:56:30 2002
+++ linux/include/asm-cris/page.h Sun Feb 24 16:47:53 2002
@@ -69,18 +69,6 @@
#else
#define PAGE_OFFSET KSEG_C /* kseg_c is mapped to physical ram */
#endif
-
-#ifndef __ASSEMBLY__
-
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
-} while (0)
-
-#define PAGE_BUG(page) do { \
- BUG(); \
-} while (0)
-
-#endif /* __ASSEMBLY__ */
/* macros to convert between really physical and virtual addresses
* by stripping a selected bit, we can convert between KSEG_x and 0x40000000 where
diff -urN orig/include/asm-i386/bug.h linux/include/asm-i386/bug.h
--- orig/include/asm-i386/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-i386/bug.h Tue Feb 26 13:19:26 2002
@@ -0,0 +1,27 @@
+#ifndef _I386_BUG_H
+#define _I386_BUG_H
+
+#include <linux/config.h>
+
+/*
+ * Tell the user there is some problem. Beep too, so we can
+ * see^H^H^Hhear bugs in early bootup as well!
+ * The offending file and line are encoded after the "officially
+ * undefined" opcode for parsing in the trap handler.
+ */
+
+#if 1 /* Set to zero for a slightly smaller kernel */
+#define BUG() \
+ __asm__ __volatile__( "ud2\n" \
+ "\t.word %c0\n" \
+ "\t.long %c1\n" \
+ : : "i" (__LINE__), "i" (__FILE__))
+#else
+#define BUG() __asm__ __volatile__("ud2\n")
+#endif
+
+#define PAGE_BUG(page) do { \
+ BUG(); \
+} while (0)
+
+#endif
diff -urN orig/include/asm-i386/page.h linux/include/asm-i386/page.h
--- orig/include/asm-i386/page.h Sat Jul 6 17:36:36 2002
+++ linux/include/asm-i386/page.h Sat Jun 22 01:04:04 2002
@@ -90,27 +90,6 @@
#define __VMALLOC_RESERVE (128 << 20)
#ifndef __ASSEMBLY__
-
-/*
- * Tell the user there is some problem. Beep too, so we can
- * see^H^H^Hhear bugs in early bootup as well!
- * The offending file and line are encoded after the "officially
- * undefined" opcode for parsing in the trap handler.
- */
-
-#if 1 /* Set to zero for a slightly smaller kernel */
-#define BUG() \
- __asm__ __volatile__( "ud2\n" \
- "\t.word %c0\n" \
- "\t.long %c1\n" \
- : : "i" (__LINE__), "i" (__FILE__))
-#else
-#define BUG() __asm__ __volatile__("ud2\n")
-#endif
-
-#define PAGE_BUG(page) do { \
- BUG(); \
-} while (0)
/* Pure 2^n version of get_order */
static __inline__ int get_order(unsigned long size)
diff -urN orig/include/asm-ia64/bug.h linux/include/asm-ia64/bug.h
--- orig/include/asm-ia64/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-ia64/bug.h Sun Jan 6 11:57:28 2002
@@ -0,0 +1,7 @@
+#ifndef _ASM_IA64_BUG_H
+#define _ASM_IA64_BUG_H
+
+#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
+#define PAGE_BUG(page) do { BUG(); } while (0)
+
+#endif
diff -urN orig/include/asm-ia64/page.h linux/include/asm-ia64/page.h
--- orig/include/asm-ia64/page.h Wed May 29 21:40:41 2002
+++ linux/include/asm-ia64/page.h Wed May 29 21:57:51 2002
@@ -86,14 +86,6 @@
#define REGION_SIZE REGION_NUMBER(1)
#define REGION_KERNEL 7
-
-#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
-# define ia64_abort() __builtin_trap()
-#else
-# define ia64_abort() (*(volatile int *) 0 = 0)
-#endif
-#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); ia64_abort(); } while (0)
-#define PAGE_BUG(page) do { BUG(); } while (0)
static __inline__ int
get_order (unsigned long size)
diff -urN orig/include/asm-m68k/bug.h linux/include/asm-m68k/bug.h
--- orig/include/asm-m68k/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-m68k/bug.h Thu Jul 25 20:17:16 2002
@@ -0,0 +1,28 @@
+#ifndef _M68K_BUG_H
+#define _M68K_BUG_H
+
+#include <linux/config.h>
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#ifndef CONFIG_SUN3
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ asm volatile("illegal"); \
+} while (0)
+#else
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ panic("BUG!"); \
+} while (0)
+#endif
+#else
+#define BUG() do { \
+ asm volatile("illegal"); \
+} while (0)
+#endif
+
+#define PAGE_BUG(page) do { \
+ BUG(); \
+} while (0)
+
+#endif
diff -urN orig/include/asm-m68k/page.h linux/include/asm-m68k/page.h
--- orig/include/asm-m68k/page.h Thu Jul 25 20:13:52 2002
+++ linux/include/asm-m68k/page.h Thu Jul 25 20:17:19 2002
@@ -176,28 +176,6 @@
#define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
#define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
-
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-#ifndef CONFIG_SUN3
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- asm volatile("illegal"); \
-} while (0)
-#else
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- panic("BUG!"); \
-} while (0)
-#endif
-#else
-#define BUG() do { \
- asm volatile("illegal"); \
-} while (0)
-#endif
-
-#define PAGE_BUG(page) do { \
- BUG(); \
-} while (0)
#endif /* __ASSEMBLY__ */
diff -urN orig/include/asm-mips/bug.h linux/include/asm-mips/bug.h
--- orig/include/asm-mips/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-mips/bug.h Sun Jan 6 11:57:49 2002
@@ -0,0 +1,8 @@
+/* $Id$ */
+#ifndef __ASM_BUG_H
+#define __ASM_BUG_H
+
+#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
+#define PAGE_BUG(page) do { BUG(); } while (0)
+
+#endif
diff -urN orig/include/asm-mips/page.h linux/include/asm-mips/page.h
--- orig/include/asm-mips/page.h Tue Mar 5 19:56:31 2002
+++ linux/include/asm-mips/page.h Sun Feb 24 16:47:53 2002
@@ -20,8 +20,6 @@
#ifndef _LANGUAGE_ASSEMBLY
-#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
-#define PAGE_BUG(page) do { BUG(); } while (0)
extern void (*_clear_page)(void * page);
extern void (*_copy_page)(void * to, void * from);
diff -urN orig/include/asm-mips64/bug.h linux/include/asm-mips64/bug.h
--- orig/include/asm-mips64/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-mips64/bug.h Sun Jan 6 11:51:12 2002
@@ -0,0 +1,7 @@
+#ifndef _ASM_BUG_H
+#define _ASM_BUG_H
+
+#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
+#define PAGE_BUG(page) do { BUG(); } while (0)
+
+#endif
diff -urN orig/include/asm-mips64/page.h linux/include/asm-mips64/page.h
--- orig/include/asm-mips64/page.h Tue Mar 5 19:56:31 2002
+++ linux/include/asm-mips64/page.h Sun Feb 24 16:47:54 2002
@@ -20,8 +20,6 @@
#ifndef _LANGUAGE_ASSEMBLY
-#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
-#define PAGE_BUG(page) do { BUG(); } while (0)
extern void (*_clear_page)(void * page);
extern void (*_copy_page)(void * to, void * from);
diff -urN orig/include/asm-parisc/bug.h linux/include/asm-parisc/bug.h
--- orig/include/asm-parisc/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-parisc/bug.h Sun Jan 6 11:51:59 2002
@@ -0,0 +1,18 @@
+#ifndef _PARISC_BUG_H
+#define _PARISC_BUG_H
+
+/*
+ * Tell the user there is some problem. Beep too, so we can
+ * see^H^H^Hhear bugs in early bootup as well!
+ *
+ * We don't beep yet. prumpf
+ */
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+} while (0)
+
+#define PAGE_BUG(page) do { \
+ BUG(); \
+} while (0)
+
+#endif
diff -urN orig/include/asm-parisc/page.h linux/include/asm-parisc/page.h
--- orig/include/asm-parisc/page.h Tue Mar 5 19:56:31 2002
+++ linux/include/asm-parisc/page.h Sun Feb 24 16:47:54 2002
@@ -51,20 +51,6 @@
/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
-
-/*
- * Tell the user there is some problem. Beep too, so we can
- * see^H^H^Hhear bugs in early bootup as well!
- *
- * We don't beep yet. prumpf
- */
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
-} while (0)
-
-#define PAGE_BUG(page) do { \
- BUG(); \
-} while (0)
#define LINUX_GATEWAY_SPACE 0
diff -urN orig/include/asm-ppc/bug.h linux/include/asm-ppc/bug.h
--- orig/include/asm-ppc/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-ppc/bug.h Sun Jan 6 11:58:18 2002
@@ -0,0 +1,20 @@
+#ifndef _PPC_BUG_H
+#define _PPC_BUG_H
+
+#include <linux/config.h>
+#include <asm/system.h> /* for xmon definition */
+
+#ifdef CONFIG_XMON
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ xmon(0); \
+} while (0)
+#else
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ __asm__ __volatile__(".long 0x0"); \
+} while (0)
+#endif
+#define PAGE_BUG(page) do { BUG(); } while (0)
+
+#endif
diff -urN orig/include/asm-ppc/page.h linux/include/asm-ppc/page.h
--- orig/include/asm-ppc/page.h Sun Jul 7 23:21:25 2002
+++ linux/include/asm-ppc/page.h Sun Jul 7 17:42:14 2002
@@ -22,19 +22,6 @@
#ifndef __ASSEMBLY__
#include <asm/system.h> /* for xmon definition */
-
-#ifdef CONFIG_XMON
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- xmon(0); \
-} while (0)
-#else
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- __asm__ __volatile__(".long 0x0"); \
-} while (0)
-#endif
-#define PAGE_BUG(page) do { BUG(); } while (0)
#define STRICT_MM_TYPECHECKS
diff -urN orig/include/asm-s390/bug.h linux/include/asm-s390/bug.h
--- orig/include/asm-s390/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-s390/bug.h Sun Jan 6 11:53:36 2002
@@ -0,0 +1,13 @@
+#ifndef _S390_BUG_H
+#define _S390_BUG_H
+
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ __asm__ __volatile__(".word 0x0000"); \
+} while (0)
+
+#define PAGE_BUG(page) do { \
+ BUG(); \
+} while (0)
+
+#endif
diff -urN orig/include/asm-s390/page.h linux/include/asm-s390/page.h
--- orig/include/asm-s390/page.h Sun Jun 9 16:01:59 2002
+++ linux/include/asm-s390/page.h Sun Jun 9 11:45:59 2002
@@ -61,15 +61,6 @@
#define clear_user_page(page, vaddr, pg) clear_page(page)
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
-
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- __asm__ __volatile__(".word 0x0000"); \
-} while (0)
-
-#define PAGE_BUG(page) do { \
- BUG(); \
-} while (0)
/* Pure 2^n version of get_order */
extern __inline__ int get_order(unsigned long size)
diff -urN orig/include/asm-s390x/bug.h linux/include/asm-s390x/bug.h
--- orig/include/asm-s390x/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-s390x/bug.h Sun Jan 6 11:54:13 2002
@@ -0,0 +1,13 @@
+#ifndef _S390_BUG_H
+#define _S390_BUG_H
+
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ __asm__ __volatile__(".long 0"); \
+} while (0)
+
+#define PAGE_BUG(page) do { \
+ BUG(); \
+} while (0)
+
+#endif
diff -urN orig/include/asm-s390x/page.h linux/include/asm-s390x/page.h
--- orig/include/asm-s390x/page.h Sun Jun 9 16:02:00 2002
+++ linux/include/asm-s390x/page.h Sun Jun 9 11:46:26 2002
@@ -59,15 +59,6 @@
#define clear_user_page(page, vaddr, pg) clear_page(page)
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
-
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- __asm__ __volatile__(".long 0"); \
-} while (0)
-
-#define PAGE_BUG(page) do { \
- BUG(); \
-} while (0)
/* Pure 2^n version of get_order */
extern __inline__ int get_order(unsigned long size)
diff -urN orig/include/asm-sh/bug.h linux/include/asm-sh/bug.h
--- orig/include/asm-sh/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-sh/bug.h Sun Jan 6 11:54:51 2002
@@ -0,0 +1,16 @@
+#ifndef __ASM_SH_BUG_H
+#define __ASM_SH_BUG_H
+
+/*
+ * Tell the user there is some problem.
+ */
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ asm volatile("nop"); \
+} while (0)
+
+#define PAGE_BUG(page) do { \
+ BUG(); \
+} while (0)
+
+#endif
diff -urN orig/include/asm-sh/page.h linux/include/asm-sh/page.h
--- orig/include/asm-sh/page.h Mon Oct 1 23:11:32 2001
+++ linux/include/asm-sh/page.h Sun Jan 6 11:54:54 2002
@@ -89,18 +89,6 @@
#define virt_to_page(kaddr) phys_to_page(__pa(kaddr))
#ifndef __ASSEMBLY__
-
-/*
- * Tell the user there is some problem.
- */
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
- asm volatile("nop"); \
-} while (0)
-
-#define PAGE_BUG(page) do { \
- BUG(); \
-} while (0)
/* Pure 2^n version of get_order */
static __inline__ int get_order(unsigned long size)
diff -urN orig/include/asm-sparc/bug.h linux/include/asm-sparc/bug.h
--- orig/include/asm-sparc/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-sparc/bug.h Sun Jan 6 11:58:47 2002
@@ -0,0 +1,25 @@
+/* $Id$ */
+#ifndef _SPARC_BUG_H
+#define _SPARC_BUG_H
+
+/*
+ * XXX I am hitting compiler bugs with __builtin_trap. This has
+ * hit me before and rusty was blaming his netfilter bugs on
+ * this so lets disable it. - Anton
+ */
+#if 0
+/* We need the mb()'s so we don't trigger a compiler bug - Anton */
+#define BUG() do { \
+ mb(); \
+ __builtin_trap(); \
+ mb(); \
+} while(0)
+#else
+#define BUG() do { \
+ printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; \
+} while (0)
+#endif
+
+#define PAGE_BUG(page) BUG()
+
+#endif
diff -urN orig/include/asm-sparc/page.h linux/include/asm-sparc/page.h
--- orig/include/asm-sparc/page.h Sun Jun 9 16:02:00 2002
+++ linux/include/asm-sparc/page.h Sun Jun 9 11:27:41 2002
@@ -29,25 +29,6 @@
#ifndef __ASSEMBLY__
-/*
- * XXX I am hitting compiler bugs with __builtin_trap. This has
- * hit me before and rusty was blaming his netfilter bugs on
- * this so lets disable it. - Anton
- */
-#if 0
-/* We need the mb()'s so we don't trigger a compiler bug - Anton */
-#define BUG() do { \
- mb(); \
- __builtin_trap(); \
- mb(); \
-} while(0)
-#else
-#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; \
-} while (0)
-#endif
-
-#define PAGE_BUG(page) BUG()
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE)
diff -urN orig/include/asm-sparc64/bug.h linux/include/asm-sparc64/bug.h
--- orig/include/asm-sparc64/bug.h Thu Jan 1 01:00:00 1970
+++ linux/include/asm-sparc64/bug.h Tue Jan 15 16:13:30 2002
@@ -0,0 +1,17 @@
+/* $Id$ */
+
+#ifndef _SPARC64_BUG_H
+#define _SPARC64_BUG_H
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+extern void do_BUG(const char *file, int line);
+#define BUG() do { \
+ do_BUG(__FILE__, __LINE__); \
+ __builtin_trap(); \
+} while (0)
+#else
+#define BUG() __builtin_trap()
+#endif
+
+
+#endif
diff -urN orig/include/asm-sparc64/page.h linux/include/asm-sparc64/page.h
--- orig/include/asm-sparc64/page.h Sun Jun 9 16:02:01 2002
+++ linux/include/asm-sparc64/page.h Sun Jun 9 11:27:41 2002
@@ -18,17 +18,6 @@
#ifndef __ASSEMBLY__
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-extern void do_BUG(const char *file, int line);
-#define BUG() do { \
- do_BUG(__FILE__, __LINE__); \
- __builtin_trap(); \
-} while (0)
-#else
-#define BUG() __builtin_trap()
-#endif
-
-#define PAGE_BUG(page) BUG()
/* Sparc64 is slow at multiplication, we prefer to use some extra space. */
#define WANT_PAGE_VIRTUAL 1
diff -urN orig/include/linux/dcache.h linux/include/linux/dcache.h
--- orig/include/linux/dcache.h Sat May 25 23:13:52 2002
+++ linux/include/linux/dcache.h Sat May 25 10:45:47 2002
@@ -7,7 +7,7 @@
#include <linux/mount.h>
#include <linux/list.h>
#include <linux/spinlock.h>
-#include <asm/page.h> /* for BUG() */
+#include <asm/bug.h>
/*
* linux/include/linux/dcache.h
diff -urN orig/include/linux/kernel.h linux/include/linux/kernel.h
--- orig/include/linux/kernel.h Thu Jul 25 20:13:54 2002
+++ linux/include/linux/kernel.h Thu Jul 25 19:59:44 2002
@@ -190,5 +190,6 @@
char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
};
+#include <asm/bug.h>
#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
#endif
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] 2.5.32-bug
2002-08-30 21:39 [PATCH] 2.5.32-bug Russell King
@ 2002-08-31 12:00 ` Ingo Oeser
2002-08-31 17:14 ` Russell King
0 siblings, 1 reply; 4+ messages in thread
From: Ingo Oeser @ 2002-08-31 12:00 UTC (permalink / raw)
To: Russell King; +Cc: linux-kernel
Hi Rusty,
On Fri, Aug 30, 2002 at 10:39:12PM +0100, Russell King wrote:
> This patch appears not to be in 2.5.32, but applies cleanly.
>
> This patch moves BUG() and PAGE_BUG() from asm/page.h into asm/bug.h.
>
> We also fix up linux/dcache.h, which included asm/page.h for the sole
> purpose of getting the BUG() definition.
>
> Since linux/kernel.h makes use of BUG(), asm/bug.h is included there
> as well.
> --- orig/include/asm-cris/bug.h Thu Jan 1 01:00:00 1970
> +++ linux/include/asm-cris/bug.h Sun Jan 6 11:46:09 2002
> @@ -0,0 +1,12 @@
> +#ifndef _CRIS_BUG_H
> +#define _CRIS_BUG_H
> +
> +#define BUG() do { \
> + printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
> +} while (0)
> +
> +#define PAGE_BUG(page) do { \
> + BUG(); \
> +} while (0)
> +
> +#endif
These kind of implementation of BUG() is not very useful. Callers
of BUG() and BUG_ON() assume, that the thread is aborted and do
nothing to fixup after BUG().
That makes sense, because that way BUG reduces code size and
simplifies actual code by omitting the error handling for errors
which are in the in kernel caller.
So please consider using panic() instead of printk() here to
encourage fixing of BUGs.
Maybe we should even officially define, whether BUG() is an
execution barrier or not.
I would vote for YES, because of code size reductions under this
assumption.
Thanks & Regards
Ingo Oeser
--
Science is what we can tell a computer. Art is everything else. --- D.E.Knuth
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] 2.5.32-bug
2002-08-31 12:00 ` Ingo Oeser
@ 2002-08-31 17:14 ` Russell King
2002-09-02 6:51 ` Rusty Russell
0 siblings, 1 reply; 4+ messages in thread
From: Russell King @ 2002-08-31 17:14 UTC (permalink / raw)
To: Ingo Oeser; +Cc: linux-kernel
On Sat, Aug 31, 2002 at 02:00:08PM +0200, Ingo Oeser wrote:
> Hi Rusty,
Grr.
> On Fri, Aug 30, 2002 at 10:39:12PM +0100, Russell King wrote:
> > This patch appears not to be in 2.5.32, but applies cleanly.
> >
> > This patch moves BUG() and PAGE_BUG() from asm/page.h into asm/bug.h.
> >
> > We also fix up linux/dcache.h, which included asm/page.h for the sole
> > purpose of getting the BUG() definition.
> >
> > Since linux/kernel.h makes use of BUG(), asm/bug.h is included there
> > as well.
> > --- orig/include/asm-cris/bug.h Thu Jan 1 01:00:00 1970
> > +++ linux/include/asm-cris/bug.h Sun Jan 6 11:46:09 2002
> > @@ -0,0 +1,12 @@
> > +#ifndef _CRIS_BUG_H
> > +#define _CRIS_BUG_H
> > +
> > +#define BUG() do { \
> > + printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
> > +} while (0)
> > +
> > +#define PAGE_BUG(page) do { \
> > + BUG(); \
> > +} while (0)
> > +
> > +#endif
>
> These kind of implementation of BUG() is not very useful. Callers
> of BUG() and BUG_ON() assume, that the thread is aborted and do
> nothing to fixup after BUG().
Nevertheless, its not up to me to change the implementation that an
architecture has chosen. That's for the individual port maintainers
to fix.
This patch only cleans up the include for the bug stuff so its in a
less silly place. There are _zero_ functional code changes.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] 2.5.32-bug
2002-08-31 17:14 ` Russell King
@ 2002-09-02 6:51 ` Rusty Russell
0 siblings, 0 replies; 4+ messages in thread
From: Rusty Russell @ 2002-09-02 6:51 UTC (permalink / raw)
To: Russell King; +Cc: ingo.oeser, linux-kernel
On Sat, 31 Aug 2002 18:14:38 +0100
Russell King <rmk@arm.linux.org.uk> wrote:
> On Sat, Aug 31, 2002 at 02:00:08PM +0200, Ingo Oeser wrote:
> > Hi Rusty,
>
> Grr.
Hey Russell, mistaking you for me is a compliment for one of us.
Hmm, I can see why you're unhappy then...
Rusty.
PS. For the record, Russell is ARM maintainer, serial code rewriter, and has
approximately 3 times as much functional brain-mass as I do. See?
--
there are those who do and those who hang on and you don't see too
many doers quoting their contemporaries. -- Larry McVoy
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2002-09-02 6:54 UTC | newest]
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2002-08-30 21:39 [PATCH] 2.5.32-bug Russell King
2002-08-31 12:00 ` Ingo Oeser
2002-08-31 17:14 ` Russell King
2002-09-02 6:51 ` Rusty Russell
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