summary |
shortlog |
log |
commit | commitdiff |
tree
raw |
patch |
inline | side by side (from parent 1:
4b11737)
[ Upstream commit
43266838515d30dc0c45d5c7e6e7edacee6cce92 ]
Enable GENERIC_BUG_RELATIVE_POINTERS which will store 32-bit relative
offsets to the bug address and the source file name instead of 64-bit
absolute addresses. This effectively reduces the size of the
bug_table[] array by half on 64-bit kernels.
Signed-off-by: Helge Deller <deller@gmx.de>
Stable-dep-of:
487635756198 ("parisc: Fix asm operand number out of range build error in bug table")
Signed-off-by: Sasha Levin <sashal@kernel.org>
default n
config GENERIC_BUG
default n
config GENERIC_BUG
+ select GENERIC_BUG_RELATIVE_POINTERS if 64BIT
+
+config GENERIC_BUG_RELATIVE_POINTERS
+ bool
config GENERIC_HWEIGHT
bool
config GENERIC_HWEIGHT
bool
#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
#define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */
#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
#define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */
-#if defined(CONFIG_64BIT)
-#define ASM_WORD_INSN ".dword\t"
+#ifdef CONFIG_GENERIC_BUG_RELATIVE_POINTERS
+# define __BUG_REL(val) ".word " __stringify(val) " - ."
-#define ASM_WORD_INSN ".word\t"
+# define __BUG_REL(val) ".word " __stringify(val)
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define BUG() \
do { \
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define BUG() \
do { \
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
- "\t.align %4\n" \
- "2:\t" ASM_WORD_INSN "1b, %c0\n" \
+ "\t.align 4\n" \
+ "2:\t" __BUG_REL(1b) "\n" \
+ "\t" __BUG_REL(%c0) "\n" \
- "\t.blockz %3-2*%4-2*2\n" \
+ "\t.blockz %3-2*4-2*2\n" \
"\t.popsection" \
: : "i" (__FILE__), "i" (__LINE__), \
"\t.popsection" \
: : "i" (__FILE__), "i" (__LINE__), \
- "i" (0), "i" (sizeof(struct bug_entry)), \
- "i" (sizeof(long)) ); \
+ "i" (0), "i" (sizeof(struct bug_entry)) ); \
unreachable(); \
} while(0)
unreachable(); \
} while(0)
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
- "\t.align %4\n" \
- "2:\t" ASM_WORD_INSN "1b, %c0\n" \
+ "\t.align 4\n" \
+ "2:\t" __BUG_REL(1b) "\n" \
+ "\t" __BUG_REL(%c0) "\n" \
- "\t.blockz %3-2*%4-2*2\n" \
+ "\t.blockz %3-2*4-2*2\n" \
"\t.popsection" \
: : "i" (__FILE__), "i" (__LINE__), \
"i" (BUGFLAG_WARNING|(flags)), \
"\t.popsection" \
: : "i" (__FILE__), "i" (__LINE__), \
"i" (BUGFLAG_WARNING|(flags)), \
- "i" (sizeof(struct bug_entry)), \
- "i" (sizeof(long)) ); \
+ "i" (sizeof(struct bug_entry)) ); \
} while(0)
#else
#define __WARN_FLAGS(flags) \
} while(0)
#else
#define __WARN_FLAGS(flags) \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
"\t.align %2\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
"\t.align %2\n" \
- "2:\t" ASM_WORD_INSN "1b\n" \
+ "2:\t" __BUG_REL(1b) "\n" \
- "\t.blockz %1-%2-2\n" \
"\t.popsection" \
: : "i" (BUGFLAG_WARNING|(flags)), \
"\t.popsection" \
: : "i" (BUGFLAG_WARNING|(flags)), \
- "i" (sizeof(struct bug_entry)), \
- "i" (sizeof(long)) ); \
+ "i" (sizeof(struct bug_entry)) ); \