[PATCH v4 03/11] perf syscalltbl: Remove syscall_table.h

Ian Rogers
2025-03-04T05:04:27Z

The definition of "static const char *const syscalltbl[] = {" is done
in a generated syscalls_32.h or syscalls_64.h that is architecture
dependent. In order to include the appropriate file a syscall_table.h
is found via the perf include path and it includes the syscalls_32.h
or syscalls_64.h as appropriate.

To support having multiple syscall tables, one for 32-bit and one for
64-bit, or for different architectures, an include path cannot be
used. Remove syscall_table.h because of this and inline what it does
into syscalltbl.c.

For architectures without a syscall_table.h this will cause a failure
to include either syscalls_32.h or syscalls_64.h rather than a failure
to include syscall_table.h. For architectures that only included one
or other, the behavior matches BITS_PER_LONG as previously done on
architectures supporting both syscalls_32.h and syscalls_64.h.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Howard Chu <howardchu95@gmail.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
---
tools/perf/arch/alpha/include/syscall_table.h | 2 --
tools/perf/arch/arc/include/syscall_table.h | 2 --
tools/perf/arch/arm/include/syscall_table.h | 2 --
tools/perf/arch/arm64/include/syscall_table.h | 8 --------
tools/perf/arch/csky/include/syscall_table.h | 2 --
tools/perf/arch/loongarch/include/syscall_table.h | 2 --
tools/perf/arch/mips/include/syscall_table.h | 2 --
tools/perf/arch/parisc/include/syscall_table.h | 8 --------
tools/perf/arch/powerpc/include/syscall_table.h | 8 --------
tools/perf/arch/riscv/include/syscall_table.h | 8 --------
tools/perf/arch/s390/include/syscall_table.h | 2 --
tools/perf/arch/sh/include/syscall_table.h | 2 --
tools/perf/arch/sparc/include/syscall_table.h | 8 --------
tools/perf/arch/x86/include/syscall_table.h | 8 --------
tools/perf/arch/xtensa/include/syscall_table.h | 2 --
tools/perf/util/syscalltbl.c | 8 +++++++-
16 files changed, 7 insertions(+), 67 deletions(-)
delete mode 100644 tools/perf/arch/alpha/include/syscall_table.h
delete mode 100644 tools/perf/arch/arc/include/syscall_table.h
delete mode 100644 tools/perf/arch/arm/include/syscall_table.h
delete mode 100644 tools/perf/arch/arm64/include/syscall_table.h
delete mode 100644 tools/perf/arch/csky/include/syscall_table.h
delete mode 100644 tools/perf/arch/loongarch/include/syscall_table.h
delete mode 100644 tools/perf/arch/mips/include/syscall_table.h
delete mode 100644 tools/perf/arch/parisc/include/syscall_table.h
delete mode 100644 tools/perf/arch/powerpc/include/syscall_table.h
delete mode 100644 tools/perf/arch/riscv/include/syscall_table.h
delete mode 100644 tools/perf/arch/s390/include/syscall_table.h
delete mode 100644 tools/perf/arch/sh/include/syscall_table.h
delete mode 100644 tools/perf/arch/sparc/include/syscall_table.h
delete mode 100644 tools/perf/arch/x86/include/syscall_table.h
delete mode 100644 tools/perf/arch/xtensa/include/syscall_table.h

diff --git a/tools/perf/arch/alpha/include/syscall_table.h b/tools/perf/arch/alpha/include/syscall_table.h
deleted file mode 100644
index b53e31c15805..000000000000
--- a/tools/perf/arch/alpha/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_64.h>
diff --git a/tools/perf/arch/arc/include/syscall_table.h b/tools/perf/arch/arc/include/syscall_table.h
deleted file mode 100644
index 4c942821662d..000000000000
--- a/tools/perf/arch/arc/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_32.h>
diff --git a/tools/perf/arch/arm/include/syscall_table.h b/tools/perf/arch/arm/include/syscall_table.h
deleted file mode 100644
index 4c942821662d..000000000000
--- a/tools/perf/arch/arm/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_32.h>
diff --git a/tools/perf/arch/arm64/include/syscall_table.h b/tools/perf/arch/arm64/include/syscall_table.h
deleted file mode 100644
index 7ff51b783000..000000000000
--- a/tools/perf/arch/arm64/include/syscall_table.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/bitsperlong.h>
-
-#if __BITS_PER_LONG == 64
-#include <asm/syscalls_64.h>
-#else
-#include <asm/syscalls_32.h>
-#endif
diff --git a/tools/perf/arch/csky/include/syscall_table.h b/tools/perf/arch/csky/include/syscall_table.h
deleted file mode 100644
index 4c942821662d..000000000000
--- a/tools/perf/arch/csky/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_32.h>
diff --git a/tools/perf/arch/loongarch/include/syscall_table.h b/tools/perf/arch/loongarch/include/syscall_table.h
deleted file mode 100644
index 9d0646d3455c..000000000000
--- a/tools/perf/arch/loongarch/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscall_table_64.h>
diff --git a/tools/perf/arch/mips/include/syscall_table.h b/tools/perf/arch/mips/include/syscall_table.h
deleted file mode 100644
index b53e31c15805..000000000000
--- a/tools/perf/arch/mips/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_64.h>
diff --git a/tools/perf/arch/parisc/include/syscall_table.h b/tools/perf/arch/parisc/include/syscall_table.h
deleted file mode 100644
index 7ff51b783000..000000000000
--- a/tools/perf/arch/parisc/include/syscall_table.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/bitsperlong.h>
-
-#if __BITS_PER_LONG == 64
-#include <asm/syscalls_64.h>
-#else
-#include <asm/syscalls_32.h>
-#endif
diff --git a/tools/perf/arch/powerpc/include/syscall_table.h b/tools/perf/arch/powerpc/include/syscall_table.h
deleted file mode 100644
index 7ff51b783000..000000000000
--- a/tools/perf/arch/powerpc/include/syscall_table.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/bitsperlong.h>
-
-#if __BITS_PER_LONG == 64
-#include <asm/syscalls_64.h>
-#else
-#include <asm/syscalls_32.h>
-#endif
diff --git a/tools/perf/arch/riscv/include/syscall_table.h b/tools/perf/arch/riscv/include/syscall_table.h
deleted file mode 100644
index 7ff51b783000..000000000000
--- a/tools/perf/arch/riscv/include/syscall_table.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/bitsperlong.h>
-
-#if __BITS_PER_LONG == 64
-#include <asm/syscalls_64.h>
-#else
-#include <asm/syscalls_32.h>
-#endif
diff --git a/tools/perf/arch/s390/include/syscall_table.h b/tools/perf/arch/s390/include/syscall_table.h
deleted file mode 100644
index b53e31c15805..000000000000
--- a/tools/perf/arch/s390/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_64.h>
diff --git a/tools/perf/arch/sh/include/syscall_table.h b/tools/perf/arch/sh/include/syscall_table.h
deleted file mode 100644
index 4c942821662d..000000000000
--- a/tools/perf/arch/sh/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_32.h>
diff --git a/tools/perf/arch/sparc/include/syscall_table.h b/tools/perf/arch/sparc/include/syscall_table.h
deleted file mode 100644
index 7ff51b783000..000000000000
--- a/tools/perf/arch/sparc/include/syscall_table.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/bitsperlong.h>
-
-#if __BITS_PER_LONG == 64
-#include <asm/syscalls_64.h>
-#else
-#include <asm/syscalls_32.h>
-#endif
diff --git a/tools/perf/arch/x86/include/syscall_table.h b/tools/perf/arch/x86/include/syscall_table.h
deleted file mode 100644
index 7ff51b783000..000000000000
--- a/tools/perf/arch/x86/include/syscall_table.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/bitsperlong.h>
-
-#if __BITS_PER_LONG == 64
-#include <asm/syscalls_64.h>
-#else
-#include <asm/syscalls_32.h>
-#endif
diff --git a/tools/perf/arch/xtensa/include/syscall_table.h b/tools/perf/arch/xtensa/include/syscall_table.h
deleted file mode 100644
index 4c942821662d..000000000000
--- a/tools/perf/arch/xtensa/include/syscall_table.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <asm/syscalls_32.h>
diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c
index 928aca4cd6e9..2f76241494c8 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -7,13 +7,19 @@

#include "syscalltbl.h"
#include <stdlib.h>
+#include <asm/bitsperlong.h>
#include <linux/compiler.h>
#include <linux/zalloc.h>

#include <string.h>
#include "string2.h"

-#include <syscall_table.h>
+#if __BITS_PER_LONG == 64
+ #include <asm/syscalls_64.h>
+#else
+ #include <asm/syscalls_32.h>
+#endif
+
const int syscalltbl_native_max_id = SYSCALLTBL_MAX_ID;
static const char *const *syscalltbl_native = syscalltbl;