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authorMike Frysinger <vapier@gentoo.org>2007-09-15 11:02:36 +0000
committerMike Frysinger <vapier@gentoo.org>2007-09-15 11:02:36 +0000
commit783107dbed9ac48f3db147f4ed6cf7a9aa75418e (patch)
treea0e081576d4a86660127740fb6cfde88ebd0aa32 /libc/sysdeps/linux/bfin/bits/syscalls.h
parentf032afc5fd03f45ecc346b1dbb00b9b3dc0e0e2a (diff)
use gcc input constraints to avoid often duplicated reloads when making syscalls
Diffstat (limited to 'libc/sysdeps/linux/bfin/bits/syscalls.h')
-rw-r--r--libc/sysdeps/linux/bfin/bits/syscalls.h118
1 files changed, 42 insertions, 76 deletions
diff --git a/libc/sysdeps/linux/bfin/bits/syscalls.h b/libc/sysdeps/linux/bfin/bits/syscalls.h
index d1d904c1c..0833a1fc1 100644
--- a/libc/sysdeps/linux/bfin/bits/syscalls.h
+++ b/libc/sysdeps/linux/bfin/bits/syscalls.h
@@ -39,12 +39,10 @@ do { \
type name(void) { \
long __res; \
__asm__ __volatile__ ( \
- "p0 = %1;\n\t" \
"excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name) \
- : "memory","CC","R0","P0"); \
+ : "=q0" (__res) \
+ : "qA" (__NR_##name) \
+ : "memory","CC"); \
__syscall_return(type,__res); \
}
@@ -52,14 +50,11 @@ type name(void) { \
type name(type1 arg1) { \
long __res; \
__asm__ __volatile__ ( \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
"excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)) \
- : "memory","CC","R0","P0"); \
+ : "=q0" (__res) \
+ : "qA" (__NR_##name), \
+ "q0" ((long)(arg1)) \
+ : "memory","CC"); \
__syscall_return(type,__res); \
}
@@ -67,16 +62,13 @@ type name(type1 arg1) { \
type name(type1 arg1,type2 arg2) { \
long __res; \
__asm__ __volatile__ ( \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
"excpt 0;\n\t" \
"%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)), \
- "rm" ((long)(arg2)) \
- : "memory","CC","R0","R1","P0"); \
+ : "=q0" (__res) \
+ : "qA" (__NR_##name), \
+ "q0" ((long)(arg1)), \
+ "q1" ((long)(arg2)) \
+ : "memory","CC"); \
__syscall_return(type,__res); \
}
@@ -84,18 +76,13 @@ type name(type1 arg1,type2 arg2) { \
type name(type1 arg1,type2 arg2,type3 arg3) { \
long __res; \
__asm__ __volatile__ ( \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
"excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)), \
- "rm" ((long)(arg2)), \
- "rm" ((long)(arg3)) \
- : "memory","CC","R0","R1","R2","P0"); \
+ : "=q0" (__res) \
+ : "qA" (__NR_##name), \
+ "q0" ((long)(arg1)), \
+ "q1" ((long)(arg2)), \
+ "q2" ((long)(arg3)) \
+ : "memory","CC"); \
__syscall_return(type,__res); \
}
@@ -103,20 +90,14 @@ type name(type1 arg1,type2 arg2,type3 arg3) { \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
long __res; \
__asm__ __volatile__ ( \
- "r3=%5;\n\t" \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "p0=%1;\n\t" \
"excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)), \
- "rm" ((long)(arg2)), \
- "rm" ((long)(arg3)), \
- "rm" ((long)(arg4)) \
- : "memory","CC","R0","R1","R2","R3","P0"); \
+ : "=q0" (__res) \
+ : "qA" (__NR_##name), \
+ "q0" ((long)(arg1)), \
+ "q1" ((long)(arg2)), \
+ "q2" ((long)(arg3)), \
+ "q3" ((long)(arg4)) \
+ : "memory","CC"); \
__syscall_return(type,__res); \
}
@@ -124,22 +105,15 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) { \
long __res; \
__asm__ __volatile__ ( \
- "r4=%6;\n\t" \
- "r3=%5;\n\t" \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "P0=%1;\n\t" \
"excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)), \
- "rm" ((long)(arg2)), \
- "rm" ((long)(arg3)), \
- "rm" ((long)(arg4)), \
- "rm" ((long)(arg5)) \
- : "memory","CC","R0","R1","R2","R3","R4","P0"); \
+ : "=q0" (__res) \
+ : "qA" (__NR_##name), \
+ "q0" ((long)(arg1)), \
+ "q1" ((long)(arg2)), \
+ "q2" ((long)(arg3)), \
+ "q3" ((long)(arg4)), \
+ "q4" ((long)(arg5)) \
+ : "memory","CC"); \
__syscall_return(type,__res); \
}
@@ -147,24 +121,16 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) { \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) { \
long __res; \
__asm__ __volatile__ ( \
- "r5=%7;\n\t" \
- "r4=%6;\n\t" \
- "r3=%5;\n\t" \
- "r2=%4;\n\t" \
- "r1=%3;\n\t" \
- "r0=%2;\n\t" \
- "P0=%1;\n\t" \
"excpt 0;\n\t" \
- "%0=r0;\n\t" \
- : "=da" (__res) \
- : "i" (__NR_##name), \
- "rm" ((long)(arg1)), \
- "rm" ((long)(arg2)), \
- "rm" ((long)(arg3)), \
- "rm" ((long)(arg4)), \
- "rm" ((long)(arg5)), \
- "rm" ((long)(arg6)) \
- : "memory","CC","R0","R1","R2","R3","R4","R5","P0"); \
+ : "=q0" (__res) \
+ : "qA" (__NR_##name), \
+ "q0" ((long)(arg1)), \
+ "q1" ((long)(arg2)), \
+ "q2" ((long)(arg3)), \
+ "q3" ((long)(arg4)), \
+ "q4" ((long)(arg5)), \
+ "q5" ((long)(arg6)) \
+ : "memory","CC"); \
__syscall_return(type,__res); \
}