From 54233a4254036efca91b9bffbd398ecf39e90555 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 30 Jul 2024 17:30:40 +0200 Subject: uretprobe: change syscall number, again Despite multiple attempts to get the syscall number assignment right for the newly added uretprobe syscall, we ended up with a bit of a mess: - The number is defined as 467 based on the assumption that the xattrat family of syscalls would use 463 through 466, but those did not make it into 6.11. - The include/uapi/asm-generic/unistd.h file still lists the number 463, but the new scripts/syscall.tbl that was supposed to have the same data lists 467 instead as the number for arc, arm64, csky, hexagon, loongarch, nios2, openrisc and riscv. None of these architectures actually provide a uretprobe syscall. - All the other architectures (powerpc, arm, mips, ...) don't list this syscall at all. There are two ways to make it consistent again: either list it with the same syscall number on all architectures, or only list it on x86 but not in scripts/syscall.tbl and asm-generic/unistd.h. Based on the most recent discussion, it seems like we won't need it anywhere else, so just remove the inconsistent assignment and instead move the x86 number to the next available one in the architecture specific range, which is 335. Fixes: 5c28424e9a34 ("syscalls: Fix to add sys_uretprobe to syscall.tbl") Fixes: 190fec72df4a ("uprobe: Wire up uretprobe system call") Fixes: 63ded110979b ("uprobe: Change uretprobe syscall scope and number") Acked-by: Masami Hiramatsu (Google) Reviewed-by: Jiri Olsa Signed-off-by: Arnd Bergmann --- scripts/syscall.tbl | 1 - 1 file changed, 1 deletion(-) (limited to 'scripts') diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl index 591d85e8ca7e..797e20ea99a2 100644 --- a/scripts/syscall.tbl +++ b/scripts/syscall.tbl @@ -402,4 +402,3 @@ 460 common lsm_set_self_attr sys_lsm_set_self_attr 461 common lsm_list_modules sys_lsm_list_modules 462 common mseal sys_mseal -467 common uretprobe sys_uretprobe -- cgit v1.2.3 From 343416f0c11c42bed07f6db03ca599f4f1771b17 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 1 Aug 2024 14:27:23 +0200 Subject: syscalls: fix syscall macros for newfstat/newfstatat The __NR_newfstat and __NR_newfstatat macros accidentally got renamed in the conversion to the syscall.tbl format, dropping the 'new' portion of the name. In an unrelated change, the two syscalls are no longer architecture specific but are once more defined on all 64-bit architectures, so the 'newstat' ABI keyword can be dropped from the table as a simplification. Fixes: Fixes: 4fe53bf2ba0a ("syscalls: add generic scripts/syscall.tbl") Closes: https://lore.kernel.org/lkml/838053e0-b186-4e9f-9668-9a3384a71f23@app.fastmail.com/T/#t Reported-by: Florian Weimer Signed-off-by: Arnd Bergmann --- arch/arm64/kernel/Makefile.syscalls | 2 +- arch/loongarch/kernel/Makefile.syscalls | 3 ++- arch/riscv/kernel/Makefile.syscalls | 2 +- scripts/syscall.tbl | 4 ++-- 4 files changed, 6 insertions(+), 5 deletions(-) (limited to 'scripts') diff --git a/arch/arm64/kernel/Makefile.syscalls b/arch/arm64/kernel/Makefile.syscalls index 3cfafd003b2d..0542a718871a 100644 --- a/arch/arm64/kernel/Makefile.syscalls +++ b/arch/arm64/kernel/Makefile.syscalls @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 syscall_abis_32 += -syscall_abis_64 += renameat newstat rlimit memfd_secret +syscall_abis_64 += renameat rlimit memfd_secret syscalltbl = arch/arm64/tools/syscall_%.tbl diff --git a/arch/loongarch/kernel/Makefile.syscalls b/arch/loongarch/kernel/Makefile.syscalls index 523bb411a3bc..ab7d9baa2915 100644 --- a/arch/loongarch/kernel/Makefile.syscalls +++ b/arch/loongarch/kernel/Makefile.syscalls @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -syscall_abis_64 += newstat +# No special ABIs on loongarch so far +syscall_abis_64 += diff --git a/arch/riscv/kernel/Makefile.syscalls b/arch/riscv/kernel/Makefile.syscalls index 52087a023b3d..9668fd1faf60 100644 --- a/arch/riscv/kernel/Makefile.syscalls +++ b/arch/riscv/kernel/Makefile.syscalls @@ -1,4 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 syscall_abis_32 += riscv memfd_secret -syscall_abis_64 += riscv newstat rlimit memfd_secret +syscall_abis_64 += riscv rlimit memfd_secret diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl index 797e20ea99a2..4586a18dfe9b 100644 --- a/scripts/syscall.tbl +++ b/scripts/syscall.tbl @@ -98,9 +98,9 @@ 77 common tee sys_tee 78 common readlinkat sys_readlinkat 79 stat64 fstatat64 sys_fstatat64 -79 newstat fstatat sys_newfstatat +79 64 newfstatat sys_newfstatat 80 stat64 fstat64 sys_fstat64 -80 newstat fstat sys_newfstat +80 64 newfstat sys_newfstat 81 common sync sys_sync 82 common fsync sys_fsync 83 common fdatasync sys_fdatasync -- cgit v1.2.3 From 26fef9d0bbeba6bf5d18386bd20aff2c83caa0ed Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 5 Aug 2024 22:35:43 +0200 Subject: syscalls: fix fstat() entry again The previous patch to fix the newfstatat() syscall entry ended up breaking fstat() instead. Unfortunately these two are not handled the same way, so I messed this one up the exact opposite way. Fixes: 343416f0c11c ("syscalls: fix syscall macros for newfstat/newfstatat") Signed-off-by: Arnd Bergmann --- scripts/syscall.tbl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl index 4586a18dfe9b..b93d43561a2c 100644 --- a/scripts/syscall.tbl +++ b/scripts/syscall.tbl @@ -100,7 +100,7 @@ 79 stat64 fstatat64 sys_fstatat64 79 64 newfstatat sys_newfstatat 80 stat64 fstat64 sys_fstat64 -80 64 newfstat sys_newfstat +80 64 fstat sys_newfstat 81 common sync sys_sync 82 common fsync sys_fsync 83 common fdatasync sys_fdatasync -- cgit v1.2.3 From b82c1d235a30622177ce10dcb94dfd691a49922f Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 5 Aug 2024 22:38:29 +0200 Subject: syscalls: add back legacy __NR_nfsservctl macro The conversion from the old unistd.h file to syscall.tbl dropped the nfsservctl macro. This one was handled inconsistently across architectures in the original introduction of the syscall.tbl format, and I went the other way on this. The syscall was already gone in linux-3.1 before the current users of the generic table (other than openrisc) first appeared, so nobody could actally use it, but putting the number back helps for consistency since there are build scripts that check the presence of all these macros. Link: https://bugzilla.redhat.com/show_bug.cgi?id=2301919 Signed-off-by: Arnd Bergmann --- scripts/syscall.tbl | 1 + 1 file changed, 1 insertion(+) (limited to 'scripts') diff --git a/scripts/syscall.tbl b/scripts/syscall.tbl index b93d43561a2c..845e24eb372e 100644 --- a/scripts/syscall.tbl +++ b/scripts/syscall.tbl @@ -53,6 +53,7 @@ 39 common umount2 sys_umount 40 common mount sys_mount 41 common pivot_root sys_pivot_root +42 common nfsservctl sys_ni_syscall 43 32 statfs64 sys_statfs64 compat_sys_statfs64 43 64 statfs sys_statfs 44 32 fstatfs64 sys_fstatfs64 compat_sys_fstatfs64 -- cgit v1.2.3