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authorArnd Bergmann <arnd@arndb.de>2024-04-23 17:41:56 +0200
committerArnd Bergmann <arnd@arndb.de>2024-07-10 14:23:38 +0200
commit26a3b85bac08fa48bf06c6e2b75e5f5d714147f3 (patch)
treed93d926acc1d8109f3c40531599c83d9fe5512c8 /arch/loongarch
parenthexagon: use new system call table (diff)
downloadlinux-26a3b85bac08fa48bf06c6e2b75e5f5d714147f3.tar.xz
linux-26a3b85bac08fa48bf06c6e2b75e5f5d714147f3.zip
loongarch: convert to generic syscall table
The uapi/asm/unistd_64.h and asm/syscall_table_64.h headers can now be generated from scripts/syscall.tbl, which makes this consistent with the other architectures that have their own syscall.tbl. Unlike the other architectures using the asm-generic header, loongarch uses none of the deprecated system calls at the moment. Both the user visible side of asm/unistd.h and the internal syscall table in the kernel should have the same effective contents after this. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/loongarch')
-rw-r--r--arch/loongarch/include/asm/Kbuild1
-rw-r--r--arch/loongarch/include/asm/unistd.h2
-rw-r--r--arch/loongarch/include/uapi/asm/Kbuild2
-rw-r--r--arch/loongarch/include/uapi/asm/unistd.h3
-rw-r--r--arch/loongarch/kernel/Makefile.syscalls4
-rw-r--r--arch/loongarch/kernel/syscall.c3
6 files changed, 12 insertions, 3 deletions
diff --git a/arch/loongarch/include/asm/Kbuild b/arch/loongarch/include/asm/Kbuild
index 0db5ad14f014..2bb3676429c0 100644
--- a/arch/loongarch/include/asm/Kbuild
+++ b/arch/loongarch/include/asm/Kbuild
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
+syscall-y += syscall_table_64.h
generated-y += orc_hash.h
generic-y += mcs_spinlock.h
diff --git a/arch/loongarch/include/asm/unistd.h b/arch/loongarch/include/asm/unistd.h
index cfddb0116a8c..fc0a481a7416 100644
--- a/arch/loongarch/include/asm/unistd.h
+++ b/arch/loongarch/include/asm/unistd.h
@@ -8,4 +8,6 @@
#include <uapi/asm/unistd.h>
+#define __ARCH_WANT_SYS_CLONE
+
#define NR_syscalls (__NR_syscalls)
diff --git a/arch/loongarch/include/uapi/asm/Kbuild b/arch/loongarch/include/uapi/asm/Kbuild
index 4aa680ca2e5f..c6d141d7b7d7 100644
--- a/arch/loongarch/include/uapi/asm/Kbuild
+++ b/arch/loongarch/include/uapi/asm/Kbuild
@@ -1,2 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
+syscall-y += unistd_64.h
+
generic-y += kvm_para.h
diff --git a/arch/loongarch/include/uapi/asm/unistd.h b/arch/loongarch/include/uapi/asm/unistd.h
index 191614b9b207..1f01980f9c94 100644
--- a/arch/loongarch/include/uapi/asm/unistd.h
+++ b/arch/loongarch/include/uapi/asm/unistd.h
@@ -1,4 +1,3 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#define __ARCH_WANT_SYS_CLONE
-#include <asm-generic/unistd.h>
+#include <asm/unistd_64.h>
diff --git a/arch/loongarch/kernel/Makefile.syscalls b/arch/loongarch/kernel/Makefile.syscalls
new file mode 100644
index 000000000000..ab7d9baa2915
--- /dev/null
+++ b/arch/loongarch/kernel/Makefile.syscalls
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# No special ABIs on loongarch so far
+syscall_abis_64 +=
diff --git a/arch/loongarch/kernel/syscall.c b/arch/loongarch/kernel/syscall.c
index 8801611143ab..ec17cd5163b7 100644
--- a/arch/loongarch/kernel/syscall.c
+++ b/arch/loongarch/kernel/syscall.c
@@ -20,6 +20,7 @@
#undef __SYSCALL
#define __SYSCALL(nr, call) [nr] = (call),
+#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, unsigned long,
prot, unsigned long, flags, unsigned long, fd, unsigned long, offset)
@@ -32,7 +33,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, unsigned long,
void *sys_call_table[__NR_syscalls] = {
[0 ... __NR_syscalls - 1] = sys_ni_syscall,
-#include <asm/unistd.h>
+#include <asm/syscall_table_64.h>
};
typedef long (*sys_call_fn)(unsigned long, unsigned long,