Date: Mon, 9 Oct 2023 03:43:06 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 7ac1c755d057 - stable/13 - sysentvec: add SV_SIGSYS flag Message-ID: <202310090343.3993h6EM024105@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=7ac1c755d05777620e47254d0526df82155df58e commit 7ac1c755d05777620e47254d0526df82155df58e Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2023-09-25 16:33:36 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2023-10-09 03:42:17 +0000 sysentvec: add SV_SIGSYS flag (cherry picked from commit b82b4ae752501469053979393e33bbfa74fbc9d2) --- sys/amd64/amd64/elf_machdep.c | 6 ++++-- sys/arm/arm/elf_machdep.c | 2 +- sys/arm64/arm64/elf32_machdep.c | 2 +- sys/arm64/arm64/elf_machdep.c | 2 +- sys/compat/ia32/ia32_sysvec.c | 3 ++- sys/i386/i386/elf_machdep.c | 2 +- sys/kern/imgact_aout.c | 6 ++++-- sys/kern/kern_sig.c | 8 +++++--- sys/powerpc/powerpc/elf32_machdep.c | 2 +- sys/powerpc/powerpc/elf64_machdep.c | 4 ++-- sys/riscv/riscv/elf_machdep.c | 2 +- sys/sys/sysent.h | 1 + 12 files changed, 24 insertions(+), 16 deletions(-) diff --git a/sys/amd64/amd64/elf_machdep.c b/sys/amd64/amd64/elf_machdep.c index 4cce1aa85970..6e966ec559f3 100644 --- a/sys/amd64/amd64/elf_machdep.c +++ b/sys/amd64/amd64/elf_machdep.c @@ -81,7 +81,8 @@ struct sysentvec elf64_freebsd_sysvec_la48 = { .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_ASLR | SV_LP64 | SV_SHP | - SV_TIMEKEEP | SV_RNG_SEED_VER | SV_DSO_SIG, + SV_TIMEKEEP | SV_RNG_SEED_VER | SV_DSO_SIG | + SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, @@ -124,7 +125,8 @@ struct sysentvec elf64_freebsd_sysvec_la57 = { .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_ASLR | SV_LP64 | SV_SHP | - SV_TIMEKEEP | SV_RNG_SEED_VER | SV_DSO_SIG, + SV_TIMEKEEP | SV_RNG_SEED_VER | SV_DSO_SIG | + SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, diff --git a/sys/arm/arm/elf_machdep.c b/sys/arm/arm/elf_machdep.c index a7de7deb73e1..0f31217d060e 100644 --- a/sys/arm/arm/elf_machdep.c +++ b/sys/arm/arm/elf_machdep.c @@ -88,7 +88,7 @@ struct sysentvec elf32_freebsd_sysvec = { .sv_maxssiz = NULL, .sv_flags = SV_ASLR | SV_SHP | SV_TIMEKEEP | SV_RNG_SEED_VER | - SV_ABI_FREEBSD | SV_ILP32, + SV_ABI_FREEBSD | SV_ILP32 | SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, diff --git a/sys/arm64/arm64/elf32_machdep.c b/sys/arm64/arm64/elf32_machdep.c index edd285d8b482..c59571808cd3 100644 --- a/sys/arm64/arm64/elf32_machdep.c +++ b/sys/arm64/arm64/elf32_machdep.c @@ -105,7 +105,7 @@ static struct sysentvec elf32_freebsd_sysvec = { .sv_fixlimit = NULL, // XXX .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_ILP32 | SV_SHP | SV_TIMEKEEP | - SV_RNG_SEED_VER, + SV_RNG_SEED_VER | SV_SIGSYS, .sv_set_syscall_retval = freebsd32_set_syscall_retval, .sv_fetch_syscall_args = freebsd32_fetch_syscall_args, .sv_syscallnames = freebsd32_syscallnames, diff --git a/sys/arm64/arm64/elf_machdep.c b/sys/arm64/arm64/elf_machdep.c index f190316ae3ec..5ca289326df2 100644 --- a/sys/arm64/arm64/elf_machdep.c +++ b/sys/arm64/arm64/elf_machdep.c @@ -83,7 +83,7 @@ static struct sysentvec elf64_freebsd_sysvec = { .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = SV_SHP | SV_TIMEKEEP | SV_ABI_FREEBSD | SV_LP64 | - SV_ASLR | SV_RNG_SEED_VER, + SV_ASLR | SV_RNG_SEED_VER | SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, diff --git a/sys/compat/ia32/ia32_sysvec.c b/sys/compat/ia32/ia32_sysvec.c index 84e3c674ee41..62108cf86ab9 100644 --- a/sys/compat/ia32/ia32_sysvec.c +++ b/sys/compat/ia32/ia32_sysvec.c @@ -128,7 +128,8 @@ struct sysentvec ia32_freebsd_sysvec = { .sv_fixlimit = ia32_fixlimit, .sv_maxssiz = &ia32_maxssiz, .sv_flags = SV_ABI_FREEBSD | SV_ASLR | SV_IA32 | SV_ILP32 | - SV_SHP | SV_TIMEKEEP | SV_RNG_SEED_VER | SV_DSO_SIG, + SV_SHP | SV_TIMEKEEP | SV_RNG_SEED_VER | + SV_DSO_SIG | SV_SIGSYS, .sv_set_syscall_retval = ia32_set_syscall_retval, .sv_fetch_syscall_args = ia32_fetch_syscall_args, .sv_syscallnames = freebsd32_syscallnames, diff --git a/sys/i386/i386/elf_machdep.c b/sys/i386/i386/elf_machdep.c index c40b27462ab4..58f3c23dfcb0 100644 --- a/sys/i386/i386/elf_machdep.c +++ b/sys/i386/i386/elf_machdep.c @@ -76,7 +76,7 @@ struct sysentvec elf32_freebsd_sysvec = { .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_ASLR | SV_IA32 | SV_ILP32 | - SV_SHP | SV_TIMEKEEP | SV_RNG_SEED_VER, + SV_SHP | SV_TIMEKEEP | SV_RNG_SEED_VER | SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, diff --git a/sys/kern/imgact_aout.c b/sys/kern/imgact_aout.c index 002bee840379..23384d383e2c 100644 --- a/sys/kern/imgact_aout.c +++ b/sys/kern/imgact_aout.c @@ -92,7 +92,8 @@ struct sysentvec aout_sysvec = { .sv_setregs = exec_setregs, .sv_fixlimit = NULL, .sv_maxssiz = NULL, - .sv_flags = SV_ABI_FREEBSD | SV_AOUT | SV_IA32 | SV_ILP32, + .sv_flags = SV_ABI_FREEBSD | SV_AOUT | SV_IA32 | SV_ILP32 | + SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, @@ -142,7 +143,8 @@ struct sysentvec aout_sysvec = { .sv_setregs = ia32_setregs, .sv_fixlimit = ia32_fixlimit, .sv_maxssiz = &ia32_maxssiz, - .sv_flags = SV_ABI_FREEBSD | SV_AOUT | SV_IA32 | SV_ILP32, + .sv_flags = SV_ABI_FREEBSD | SV_AOUT | SV_IA32 | SV_ILP32 | + SV_SIGSYS, .sv_set_syscall_retval = ia32_set_syscall_retval, .sv_fetch_syscall_args = ia32_fetch_syscall_args, .sv_syscallnames = freebsd32_syscallnames, diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index 04ca12cc5d84..5dd56e0ec851 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -4128,9 +4128,11 @@ nosys(struct thread *td, struct nosys_args *args) p = td->td_proc; - PROC_LOCK(p); - tdsignal(td, SIGSYS); - PROC_UNLOCK(p); + if (SV_PROC_FLAG(p, SV_SIGSYS) != 0) { + PROC_LOCK(p); + tdsignal(td, SIGSYS); + PROC_UNLOCK(p); + } if (kern_lognosys == 1 || kern_lognosys == 3) { uprintf("pid %d comm %s: nosys %d\n", p->p_pid, p->p_comm, td->td_sa.code); diff --git a/sys/powerpc/powerpc/elf32_machdep.c b/sys/powerpc/powerpc/elf32_machdep.c index a689860b9a25..5611c18920ec 100644 --- a/sys/powerpc/powerpc/elf32_machdep.c +++ b/sys/powerpc/powerpc/elf32_machdep.c @@ -123,7 +123,7 @@ struct sysentvec elf32_freebsd_sysvec = { #endif .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_ILP32 | SV_SHP | SV_ASLR | - SV_TIMEKEEP | SV_RNG_SEED_VER, + SV_TIMEKEEP | SV_RNG_SEED_VER | SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_shared_page_base = FREEBSD32_SHAREDPAGE, diff --git a/sys/powerpc/powerpc/elf64_machdep.c b/sys/powerpc/powerpc/elf64_machdep.c index 118dedda2a71..a1cf7d41e38a 100644 --- a/sys/powerpc/powerpc/elf64_machdep.c +++ b/sys/powerpc/powerpc/elf64_machdep.c @@ -85,7 +85,7 @@ struct sysentvec elf64_freebsd_sysvec_v1 = { .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_LP64 | SV_SHP | SV_ASLR | - SV_TIMEKEEP | SV_RNG_SEED_VER, + SV_TIMEKEEP | SV_RNG_SEED_VER | SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, @@ -128,7 +128,7 @@ struct sysentvec elf64_freebsd_sysvec_v2 = { .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_LP64 | SV_SHP | - SV_TIMEKEEP | SV_RNG_SEED_VER, + SV_TIMEKEEP | SV_RNG_SEED_VER | SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, diff --git a/sys/riscv/riscv/elf_machdep.c b/sys/riscv/riscv/elf_machdep.c index 52e993a21abb..23d4ea885378 100644 --- a/sys/riscv/riscv/elf_machdep.c +++ b/sys/riscv/riscv/elf_machdep.c @@ -87,7 +87,7 @@ static struct sysentvec elf64_freebsd_sysvec = { .sv_fixlimit = NULL, .sv_maxssiz = NULL, .sv_flags = SV_ABI_FREEBSD | SV_LP64 | SV_SHP | SV_TIMEKEEP | - SV_ASLR | SV_RNG_SEED_VER, + SV_ASLR | SV_RNG_SEED_VER | SV_SIGSYS, .sv_set_syscall_retval = cpu_set_syscall_retval, .sv_fetch_syscall_args = cpu_fetch_syscall_args, .sv_syscallnames = syscallnames, diff --git a/sys/sys/sysent.h b/sys/sys/sysent.h index 2d8631b94113..77f59b968346 100644 --- a/sys/sys/sysent.h +++ b/sys/sys/sysent.h @@ -172,6 +172,7 @@ struct sysentvec { #define SV_SIG_DISCIGN 0x200000 /* Do not discard ignored signals */ #define SV_SIG_WAITNDQ 0x400000 /* Wait does not dequeue SIGCHLD */ #define SV_DSO_SIG 0x800000 /* Signal trampoline packed in dso */ +#define SV_SIGSYS 0x1000000 /* SIGSYS for non-existing syscall. NOTE: different value from HEAD */ #define SV_ABI_MASK 0xff #define SV_PROC_FLAG(p, x) ((p)->p_sysent->sv_flags & (x))
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