aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/bug.h80
-rw-r--r--include/asm-powerpc/module.h2
2 files changed, 40 insertions, 42 deletions
diff --git a/include/asm-powerpc/bug.h b/include/asm-powerpc/bug.h
index 978b2c7e84ea..709568879f73 100644
--- a/include/asm-powerpc/bug.h
+++ b/include/asm-powerpc/bug.h
@@ -13,36 +13,39 @@
13 13
14#ifndef __ASSEMBLY__ 14#ifndef __ASSEMBLY__
15 15
16struct bug_entry {
17 unsigned long bug_addr;
18 long line;
19 const char *file;
20 const char *function;
21};
22
23struct bug_entry *find_bug(unsigned long bugaddr);
24
25/*
26 * If this bit is set in the line number it means that the trap
27 * is for WARN_ON rather than BUG or BUG_ON.
28 */
29#define BUG_WARNING_TRAP 0x1000000
30
31#ifdef CONFIG_BUG 16#ifdef CONFIG_BUG
32 17
18/* _EMIT_BUG_ENTRY expects args %0,%1,%2,%3 to be FILE, LINE, flags and
19 sizeof(struct bug_entry), respectively */
20#ifdef CONFIG_DEBUG_BUGVERBOSE
21#define _EMIT_BUG_ENTRY \
22 ".section __bug_table,\"a\"\n" \
23 "2:\t" PPC_LONG "1b, %0\n" \
24 "\t.short %1, %2\n" \
25 ".org 2b+%3\n" \
26 ".previous\n"
27#else
28#define _EMIT_BUG_ENTRY \
29 ".section __bug_table,\"a\"\n" \
30 "2:\t" PPC_LONG "1b\n" \
31 "\t.short %2\n" \
32 ".org 2b+%3\n" \
33 ".previous\n"
34#endif
35
33/* 36/*
34 * BUG_ON() and WARN_ON() do their best to cooperate with compile-time 37 * BUG_ON() and WARN_ON() do their best to cooperate with compile-time
35 * optimisations. However depending on the complexity of the condition 38 * optimisations. However depending on the complexity of the condition
36 * some compiler versions may not produce optimal results. 39 * some compiler versions may not produce optimal results.
37 */ 40 */
38 41
39#define BUG() do { \ 42#define BUG() do { \
40 __asm__ __volatile__( \ 43 __asm__ __volatile__( \
41 "1: twi 31,0,0\n" \ 44 "1: twi 31,0,0\n" \
42 ".section __bug_table,\"a\"\n" \ 45 _EMIT_BUG_ENTRY \
43 "\t"PPC_LONG" 1b,%0,%1,%2\n" \ 46 : : "i" (__FILE__), "i" (__LINE__), \
44 ".previous" \ 47 "i" (0), "i" (sizeof(struct bug_entry))); \
45 : : "i" (__LINE__), "i" (__FILE__), "i" (__FUNCTION__)); \ 48 for(;;) ; \
46} while (0) 49} while (0)
47 50
48#define BUG_ON(x) do { \ 51#define BUG_ON(x) do { \
@@ -51,23 +54,21 @@ struct bug_entry *find_bug(unsigned long bugaddr);
51 BUG(); \ 54 BUG(); \
52 } else { \ 55 } else { \
53 __asm__ __volatile__( \ 56 __asm__ __volatile__( \
54 "1: "PPC_TLNEI" %0,0\n" \ 57 "1: "PPC_TLNEI" %4,0\n" \
55 ".section __bug_table,\"a\"\n" \ 58 _EMIT_BUG_ENTRY \
56 "\t"PPC_LONG" 1b,%1,%2,%3\n" \ 59 : : "i" (__FILE__), "i" (__LINE__), "i" (0), \
57 ".previous" \ 60 "i" (sizeof(struct bug_entry)), \
58 : : "r" ((long)(x)), "i" (__LINE__), \ 61 "r" ((long)(x))); \
59 "i" (__FILE__), "i" (__FUNCTION__)); \
60 } \ 62 } \
61} while (0) 63} while (0)
62 64
63#define __WARN() do { \ 65#define __WARN() do { \
64 __asm__ __volatile__( \ 66 __asm__ __volatile__( \
65 "1: twi 31,0,0\n" \ 67 "1: twi 31,0,0\n" \
66 ".section __bug_table,\"a\"\n" \ 68 _EMIT_BUG_ENTRY \
67 "\t"PPC_LONG" 1b,%0,%1,%2\n" \ 69 : : "i" (__FILE__), "i" (__LINE__), \
68 ".previous" \ 70 "i" (BUGFLAG_WARNING), \
69 : : "i" (__LINE__ + BUG_WARNING_TRAP), \ 71 "i" (sizeof(struct bug_entry))); \
70 "i" (__FILE__), "i" (__FUNCTION__)); \
71} while (0) 72} while (0)
72 73
73#define WARN_ON(x) ({ \ 74#define WARN_ON(x) ({ \
@@ -77,13 +78,12 @@ struct bug_entry *find_bug(unsigned long bugaddr);
77 __WARN(); \ 78 __WARN(); \
78 } else { \ 79 } else { \
79 __asm__ __volatile__( \ 80 __asm__ __volatile__( \
80 "1: "PPC_TLNEI" %0,0\n" \ 81 "1: "PPC_TLNEI" %4,0\n" \
81 ".section __bug_table,\"a\"\n" \ 82 _EMIT_BUG_ENTRY \
82 "\t"PPC_LONG" 1b,%1,%2,%3\n" \ 83 : : "i" (__FILE__), "i" (__LINE__), \
83 ".previous" \ 84 "i" (BUGFLAG_WARNING), \
84 : : "r" (__ret_warn_on), \ 85 "i" (sizeof(struct bug_entry)), \
85 "i" (__LINE__ + BUG_WARNING_TRAP), \ 86 "r" (__ret_warn_on)); \
86 "i" (__FILE__), "i" (__FUNCTION__)); \
87 } \ 87 } \
88 unlikely(__ret_warn_on); \ 88 unlikely(__ret_warn_on); \
89}) 89})
diff --git a/include/asm-powerpc/module.h b/include/asm-powerpc/module.h
index 584fabfb4f08..e5f14b13ccf0 100644
--- a/include/asm-powerpc/module.h
+++ b/include/asm-powerpc/module.h
@@ -46,8 +46,6 @@ struct mod_arch_specific {
46 unsigned int num_bugs; 46 unsigned int num_bugs;
47}; 47};
48 48
49extern struct bug_entry *module_find_bug(unsigned long bugaddr);
50
51/* 49/*
52 * Select ELF headers. 50 * Select ELF headers.
53 * Make empty section for module_frob_arch_sections to expand. 51 * Make empty section for module_frob_arch_sections to expand.
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 17:08:40 -0500