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Commita7ea9f4

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committed
Still further tweaking of s_lock assembler: do not assume that leading
whitespace is unimportant in assembly code. Also, move VAX definitionof typedef slock_t to port header files to be like all the other ports.Note that netbsd.h and openbsd.h are now identical, and I rather thinkthat freebsd.h is broken in the places where it doesn't agree --- butI'll leave it to the freebsders to look at that.
1 parent58f4028 commita7ea9f4

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3 files changed

+70
-67
lines changed

3 files changed

+70
-67
lines changed

‎src/include/port/freebsd.h

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -14,6 +14,7 @@ typedef long int slock_t;
1414
#endif
1515

1616
#if defined(__vax__)
17+
typedefunsignedcharslock_t;
1718
#defineNEED_VAX_TAS_ASM
1819
#defineHAS_TEST_AND_SET
1920
#endif

‎src/include/port/openbsd.h

Lines changed: 9 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,43 +1,47 @@
11
#if defined(__i386__)
22
#defineNEED_I386_TAS_ASM
33
#defineHAS_TEST_AND_SET
4+
typedefunsignedcharslock_t;
45
#endif
56

67
#if defined(__sparc__)
78
#defineNEED_SPARC_TAS_ASM
89
#defineHAS_TEST_AND_SET
10+
typedefunsignedcharslock_t;
911
#endif
1012

1113
#if defined(__vax__)
1214
#defineNEED_VAX_TAS_ASM
1315
#defineHAS_TEST_AND_SET
16+
typedefunsignedcharslock_t;
1417
#endif
1518

1619
#if defined(__ns32k__)
1720
#defineNEED_NS32K_TAS_ASM
1821
#defineHAS_TEST_AND_SET
22+
typedefunsignedcharslock_t;
1923
#endif
2024

2125
#if defined(__m68k__)
2226
#defineHAS_TEST_AND_SET
27+
typedefunsignedcharslock_t;
2328
#endif
2429

2530
#if defined(__arm__)
2631
#defineHAS_TEST_AND_SET
32+
typedefunsignedcharslock_t;
2733
#endif
2834

2935
#if defined(__mips__)
3036
/* #undef HAS_TEST_AND_SET */
3137
#endif
3238

33-
#if defined(__powerpc__)
39+
#if defined(__alpha__)
3440
#defineHAS_TEST_AND_SET
41+
typedefunsigned longslock_t;
3542
#endif
3643

3744
#if defined(__powerpc__)
45+
#defineHAS_TEST_AND_SET
3846
typedefunsignedintslock_t;
39-
40-
#else
41-
typedefunsignedcharslock_t;
42-
4347
#endif

‎src/include/storage/s_lock.h

Lines changed: 60 additions & 62 deletions
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@
99
*
1010
*
1111
* IDENTIFICATION
12-
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.84 2001/01/19 21:09:57 momjian Exp $
12+
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.85 2001/01/20 00:03:54 tgl Exp $
1313
*
1414
*-------------------------------------------------------------------------
1515
*/
@@ -100,15 +100,15 @@ extern void s_lock_sleep(unsigned spins, int microsec,
100100
*/
101101

102102
/*
103-
* Standard_asm format:
103+
* Standardgcc asm format:
104104
*
105-
*__asm__ __volatile__(
106-
"command\n"
107-
"command\n"
108-
"command\n"
109-
:"=r"(_res)return value, in register
110-
:"r"(lock)argument, 'lock pointer', in register
111-
:"r0");inline code uses this register
105+
__asm__ __volatile__(
106+
"command\n"
107+
"command\n"
108+
"command\n"
109+
:"=r"(_res)return value, in register
110+
:"r"(lock)argument, 'lock pointer', in register
111+
:"r0");inline code uses this register
112112
*/
113113

114114

@@ -121,10 +121,10 @@ tas(volatile slock_t *lock)
121121
registerslock_t_res=1;
122122

123123
__asm__ __volatile__(
124-
"lock\n"
125-
"xchgb%0,%1\n"
126-
:"=q"(_res),"=m"(*lock)
127-
:"0"(_res));
124+
"lock\n"
125+
"xchgb%0,%1\n"
126+
:"=q"(_res),"=m"(*lock)
127+
:"0"(_res));
128128
return (int)_res;
129129
}
130130

@@ -140,10 +140,10 @@ tas(volatile slock_t *lock)
140140
longintret;
141141

142142
__asm__ __volatile__(
143-
"xchg4 %0=%1,%2\n"
144-
:"=r"(ret),"=m"(*lock)
145-
:"r"(1),"1"(*lock)
146-
:"memory");
143+
"xchg4 %0=%1,%2\n"
144+
:"=r"(ret),"=m"(*lock)
145+
:"r"(1),"1"(*lock)
146+
:"memory");
147147

148148
return (int)ret;
149149
}
@@ -160,9 +160,9 @@ tas(volatile slock_t *lock)
160160
registerslock_t_res=1;
161161

162162
__asm__ __volatile__(
163-
"swpb %0, %0, [%3]\n"
164-
:"=r"(_res),"=m"(*lock)
165-
:"0"(_res),"r"(lock));
163+
"swpb %0, %0, [%3]\n"
164+
:"=r"(_res),"=m"(*lock)
165+
:"0"(_res),"r"(lock));
166166
return (int)_res;
167167
}
168168

@@ -180,14 +180,14 @@ tas(volatile slock_t *lock)
180180
int_res;
181181

182182
__asm____volatile__(
183-
"la1,1\n"
184-
"l2,%2\n"
185-
"slr0,0\n"
186-
"cs 0,1,0(2)\n"
187-
"lr %1,0\n"
188-
:"=m"(lock),"=d"(_res)
189-
:"m"(lock)
190-
:"0","1","2");
183+
"la1,1\n"
184+
"l 2,%2\n"
185+
"slr 0,0\n"
186+
"cs 0,1,0(2)\n"
187+
"lr %1,0\n"
188+
:"=m"(lock),"=d"(_res)
189+
:"m"(lock)
190+
:"0","1","2");
191191

192192
return (_res);
193193
}
@@ -204,9 +204,9 @@ tas(volatile slock_t *lock)
204204
registerslock_t_res=1;
205205

206206
__asm__ __volatile__(
207-
"ldstub[%2], %0\n"
208-
:"=r"(_res),"=m"(*lock)
209-
:"r"(lock));
207+
"ldstub[%2], %0\n"
208+
:"=r"(_res),"=m"(*lock)
209+
:"r"(lock));
210210
return (int)_res;
211211
}
212212

@@ -222,11 +222,11 @@ tas(volatile slock_t *lock)
222222
registerintrv;
223223

224224
__asm____volatile__(
225-
"tas%1\n"
226-
"sne%0\n"
227-
:"=d"(rv),"=m"(*lock)
228-
:"1"(*lock)
229-
:"cc");
225+
"tas%1\n"
226+
"sne%0\n"
227+
:"=d"(rv),"=m"(*lock)
228+
:"1"(*lock)
229+
:"cc");
230230

231231
returnrv;
232232
}
@@ -241,21 +241,19 @@ tas(volatile slock_t *lock)
241241
*/
242242
#defineTAS(lock) tas(lock)
243243

244-
typedefunsignedcharslock_t;
245-
246244
static __inline__int
247245
tas(volatileslock_t*lock)
248246
{
249247
register_res;
250248

251249
__asm__ __volatile__(
252-
"movl $1, r0\n"
253-
"bbssi$0, (%1), 1f\n"
254-
"clrlr0\n"
255-
"1:movlr0, %0\n"
256-
:"=r"(_res)
257-
:"r"(lock)
258-
:"r0");
250+
"movl $1, r0\n"
251+
"bbssi$0, (%1), 1f\n"
252+
"clrlr0\n"
253+
"1:movlr0, %0\n"
254+
:"=r"(_res)
255+
:"r"(lock)
256+
:"r0");
259257
return (int)_res;
260258
}
261259

@@ -271,9 +269,9 @@ tas(volatile slock_t *lock)
271269
register_res;
272270

273271
__asm__ __volatile__(
274-
"sbitb0, %0\n"
275-
"sfsd%1\n"
276-
:"=m"(*lock),"=r"(_res));
272+
"sbitb0, %0\n"
273+
"sfsd%1\n"
274+
:"=m"(*lock),"=r"(_res));
277275
return (int)_res;
278276
}
279277

@@ -329,7 +327,7 @@ tas(volatile slock_t *s_lock)
329327
#defineS_UNLOCK(lock)\
330328
do \
331329
{\
332-
__asm__ __volatile__ ("mb"); \
330+
__asm__ __volatile__ ("mb \n"); \
333331
*(lock) = 0; \
334332
} while (0)
335333

@@ -339,20 +337,20 @@ tas(volatile slock_t *lock)
339337
registerslock_t_res;
340338

341339
__asm____volatile__(
342-
"ldq$0, %0\n"
343-
"bne$0, 2f\n"
344-
"ldq_l%1, %0\n"
345-
"bne%1, 2f\n"
346-
"mov1, $0\n"
347-
"stq_c$0, %0\n"
348-
"beq$0, 2f\n"
349-
"mb\n"
350-
"br3f\n"
351-
"2:mov1, %1\n"
352-
"3:\n"
353-
:"=m"(*lock),"=r"(_res)
340+
"ldq$0, %0\n"
341+
"bne$0, 2f\n"
342+
"ldq_l%1, %0\n"
343+
"bne%1, 2f\n"
344+
"mov1, $0\n"
345+
"stq_c$0, %0\n"
346+
"beq$0, 2f\n"
347+
"mb\n"
348+
"br3f\n"
349+
"2:mov1, %1\n"
350+
"3:\n"
351+
:"=m"(*lock),"=r"(_res)
354352
:
355-
:"0");
353+
:"0");
356354

357355
return (int)_res;
358356
}

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