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[PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro

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- this macro unifies the code to add exception table entries
- additionally use ENTRY()/ENDPROC() at more places

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
Helge Deller
2007-01-28 14:52:57 +01:00
committed by Kyle McMartin
parent 8e9e9844b4
commit 0b3d643f9e
9 changed files with 97 additions and 218 deletions
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8
include/asm-parisc/assembly.h
View File

@@ -31,9 +31,13 @@
#define STREGM std,ma
#define SHRREG shrd
#define SHLREG shld
#define ADDIB addib,*
#define CMPB cmpb,*
#define ANDCM andcm,*
#define RP_OFFSET 16
#define FRAME_SIZE 128
#define CALLEE_REG_FRAME_SIZE 144
#define ASM_ULONG_INSN .dword
#else /* CONFIG_64BIT */
#define LDREG ldw
#define STREG stw
@@ -42,9 +46,13 @@
#define STREGM stwm
#define SHRREG shr
#define SHLREG shlw
#define ADDIB addib,
#define CMPB cmpb,
#define ANDCM andcm
#define RP_OFFSET 20
#define FRAME_SIZE 64
#define CALLEE_REG_FRAME_SIZE 128
#define ASM_ULONG_INSN .word
#endif
#define CALLEE_SAVE_FRAME_SIZE (CALLEE_REG_FRAME_SIZE + CALLEE_FLOAT_FRAME_SIZE)

12
include/asm-parisc/bug.h
View File

@@ -14,10 +14,10 @@
#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
#define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */
#ifdef CONFIG_64BIT
#define ASM_ULONG_INSN ".dword"
#if defined(CONFIG_64BIT)
#define ASM_WORD_INSN ".dword\t"
#else
#define ASM_ULONG_INSN ".word"
#define ASM_WORD_INSN ".word\t"
#endif
#ifdef CONFIG_DEBUG_BUGVERBOSE
@@ -26,7 +26,7 @@
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
"2:\t" ASM_ULONG_INSN " 1b, %c0\n" \
"2:\t" ASM_WORD_INSN "1b, %c0\n" \
"\t.short %c1, %c2\n" \
"\t.org 2b+%c3\n" \
"\t.popsection" \
@@ -49,7 +49,7 @@
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
"2:\t" ASM_ULONG_INSN " 1b, %c0\n" \
"2:\t" ASM_WORD_INSN "1b, %c0\n" \
"\t.short %c1, %c2\n" \
"\t.org 2b+%c3\n" \
"\t.popsection" \
@@ -63,7 +63,7 @@
asm volatile("\n" \
"1:\t" PARISC_BUG_BREAK_ASM "\n" \
"\t.pushsection __bug_table,\"a\"\n" \
"2:\t" ASM_ULONG_INSN " 1b\n" \
"2:\t" ASM_WORD_INSN "1b\n" \
"\t.short %c0\n" \
"\t.org 2b+%c1\n" \
"\t.popsection" \

53
include/asm-parisc/uaccess.h
View File

@@ -67,6 +67,11 @@ struct exception_table_entry {
long fixup; /* fixup routine */
};
#define ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr )\
".section __ex_table,\"aw\"\n" \
ASM_WORD_INSN #fault_addr ", " #except_addr "\n\t" \
".previous\n"
/*
* The page fault handler stores, in a per-cpu area, the following information
* if a fixup routine is available.
@@ -106,21 +111,15 @@ struct exception_data {
})
#define __get_kernel_asm(ldx,ptr) \
__asm__("\n1:\t" ldx "\t0(%2),%0\n" \
"\t.section __ex_table,\"aw\"\n" \
"\t" ASM_WORD_INSN \
"1b,fixup_get_user_skip_1\n" \
"\t.previous" \
__asm__("\n1:\t" ldx "\t0(%2),%0\n\t" \
ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
: "=r"(__gu_val), "=r"(__gu_err) \
: "r"(ptr), "1"(__gu_err) \
: "r1");
#define __get_user_asm(ldx,ptr) \
__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n" \
"\t.section __ex_table,\"aw\"\n" \
"\t" ASM_WORD_INSN \
"1b,fixup_get_user_skip_1\n" \
"\t.previous" \
__asm__("\n1:\t" ldx "\t0(%%sr3,%2),%0\n\t" \
ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_get_user_skip_1)\
: "=r"(__gu_val), "=r"(__gu_err) \
: "r"(ptr), "1"(__gu_err) \
: "r1");
@@ -164,22 +163,16 @@ struct exception_data {
#define __put_kernel_asm(stx,x,ptr) \
__asm__ __volatile__ ( \
"\n1:\t" stx "\t%2,0(%1)\n" \
"\t.section __ex_table,\"aw\"\n" \
"\t" ASM_WORD_INSN \
"1b,fixup_put_user_skip_1\n" \
"\t.previous" \
"\n1:\t" stx "\t%2,0(%1)\n\t" \
ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\
: "=r"(__pu_err) \
: "r"(ptr), "r"(x), "0"(__pu_err) \
: "r1")
#define __put_user_asm(stx,x,ptr) \
__asm__ __volatile__ ( \
"\n1:\t" stx "\t%2,0(%%sr3,%1)\n" \
"\t.section __ex_table,\"aw\"\n" \
"\t" ASM_WORD_INSN \
"1b,fixup_put_user_skip_1\n" \
"\t.previous" \
"\n1:\t" stx "\t%2,0(%%sr3,%1)\n\t" \
ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_1)\
: "=r"(__pu_err) \
: "r"(ptr), "r"(x), "0"(__pu_err) \
: "r1")
@@ -192,12 +185,10 @@ struct exception_data {
u32 hi = (__val64) >> 32; \
u32 lo = (__val64) & 0xffffffff; \
__asm__ __volatile__ ( \
"\n1:\tstw %2,0(%1)\n" \
"\n2:\tstw %3,4(%1)\n" \
"\t.section __ex_table,\"aw\"\n" \
"\t.word\t1b,fixup_put_user_skip_2\n" \
"\t.word\t2b,fixup_put_user_skip_1\n" \
"\t.previous" \
"\n1:\tstw %2,0(%1)" \
"\n2:\tstw %3,4(%1)\n\t" \
ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
: "=r"(__pu_err) \
: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
: "r1"); \
@@ -208,12 +199,10 @@ struct exception_data {
u32 hi = (__val64) >> 32; \
u32 lo = (__val64) & 0xffffffff; \
__asm__ __volatile__ ( \
"\n1:\tstw %2,0(%%sr3,%1)\n" \
"\n2:\tstw %3,4(%%sr3,%1)\n" \
"\t.section __ex_table,\"aw\"\n" \
"\t.word\t1b,fixup_put_user_skip_2\n" \
"\t.word\t2b,fixup_put_user_skip_1\n" \
"\t.previous" \
"\n1:\tstw %2,0(%%sr3,%1)" \
"\n2:\tstw %3,4(%%sr3,%1)\n\t" \
ASM_EXCEPTIONTABLE_ENTRY(1b,fixup_put_user_skip_2)\
ASM_EXCEPTIONTABLE_ENTRY(2b,fixup_put_user_skip_1)\
: "=r"(__pu_err) \
: "r"(ptr), "r"(hi), "r"(lo), "0"(__pu_err) \
: "r1"); \