[PATCH v5 07/14] tools/nolibc: arch-loongarch.h: shrink with SYSCALL_CLOBBERLIST
From: Zhangjin Wu
Date: Wed Jun 28 2023 - 09:31:11 EST
my_syscall<N> share a same long clobber list, define a macro for them.
Signed-off-by: Zhangjin Wu <falcon@xxxxxxxxxxx>
---
tools/include/nolibc/arch-loongarch.h | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/tools/include/nolibc/arch-loongarch.h b/tools/include/nolibc/arch-loongarch.h
index 292d6a58dc87..fbb4844f7993 100644
--- a/tools/include/nolibc/arch-loongarch.h
+++ b/tools/include/nolibc/arch-loongarch.h
@@ -23,6 +23,10 @@
*/
#define __ARCH_WANT_SYS_PSELECT6
+#define SYSCALL_CLOBBERLIST \
+ "memory", "$t0", "$t1", "$t2", "$t3", \
+ "$t4", "$t5", "$t6", "$t7", "$t8"
+
#define my_syscall0(num) \
({ \
register long _num __asm__ ("a7") = (num); \
@@ -32,8 +36,7 @@
"syscall 0\n" \
: "=r"(_arg1) \
: "r"(_num) \
- : "memory", "$t0", "$t1", "$t2", "$t3", \
- "$t4", "$t5", "$t6", "$t7", "$t8" \
+ : SYSCALL_CLOBBERLIST \
); \
_arg1; \
})
@@ -47,8 +50,7 @@
"syscall 0\n" \
: "+r"(_arg1) \
: "r"(_num) \
- : "memory", "$t0", "$t1", "$t2", "$t3", \
- "$t4", "$t5", "$t6", "$t7", "$t8" \
+ : SYSCALL_CLOBBERLIST \
); \
_arg1; \
})
@@ -64,8 +66,7 @@
: "+r"(_arg1) \
: "r"(_arg2), \
"r"(_num) \
- : "memory", "$t0", "$t1", "$t2", "$t3", \
- "$t4", "$t5", "$t6", "$t7", "$t8" \
+ : SYSCALL_CLOBBERLIST \
); \
_arg1; \
})
@@ -82,8 +83,7 @@
: "+r"(_arg1) \
: "r"(_arg2), "r"(_arg3), \
"r"(_num) \
- : "memory", "$t0", "$t1", "$t2", "$t3", \
- "$t4", "$t5", "$t6", "$t7", "$t8" \
+ : SYSCALL_CLOBBERLIST \
); \
_arg1; \
})
@@ -101,8 +101,7 @@
: "+r"(_arg1) \
: "r"(_arg2), "r"(_arg3), "r"(_arg4), \
"r"(_num) \
- : "memory", "$t0", "$t1", "$t2", "$t3", \
- "$t4", "$t5", "$t6", "$t7", "$t8" \
+ : SYSCALL_CLOBBERLIST \
); \
_arg1; \
})
@@ -121,8 +120,7 @@
: "+r"(_arg1) \
: "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
"r"(_num) \
- : "memory", "$t0", "$t1", "$t2", "$t3", \
- "$t4", "$t5", "$t6", "$t7", "$t8" \
+ : SYSCALL_CLOBBERLIST \
); \
_arg1; \
})
@@ -142,8 +140,7 @@
: "+r"(_arg1) \
: "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), "r"(_arg6), \
"r"(_num) \
- : "memory", "$t0", "$t1", "$t2", "$t3", \
- "$t4", "$t5", "$t6", "$t7", "$t8" \
+ : SYSCALL_CLOBBERLIST \
); \
_arg1; \
})
--
2.25.1