Date: Tue, 21 Nov 2023 12:29:07 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 5a2bbacea56f - main - FEATURE compat_freebsd_32bit: only report on arm64 when support is present Message-ID: <202311211229.3ALCT7xZ026635@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=5a2bbacea56f40e91c5371d5d6a210afd797fd3b commit 5a2bbacea56f40e91c5371d5d6a210afd797fd3b Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2023-11-16 21:06:36 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2023-11-21 11:55:59 +0000 FEATURE compat_freebsd_32bit: only report on arm64 when support is present depending on hardware support for aarch32. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D42641 --- sys/arm64/arm64/elf32_machdep.c | 2 ++ sys/compat/freebsd32/freebsd32_misc.c | 13 ++++++++++++- sys/compat/freebsd32/freebsd32_util.h | 2 ++ 3 files changed, 16 insertions(+), 1 deletion(-) diff --git a/sys/arm64/arm64/elf32_machdep.c b/sys/arm64/arm64/elf32_machdep.c index 4acb68b09108..de0ee9607ad1 100644 --- a/sys/arm64/arm64/elf32_machdep.c +++ b/sys/arm64/arm64/elf32_machdep.c @@ -160,6 +160,8 @@ register_elf32_brand(void *arg) if (ID_AA64PFR0_EL0_VAL(READ_SPECIALREG(id_aa64pfr0_el1)) == ID_AA64PFR0_EL0_64_32) { elf32_insert_brand_entry(&freebsd32_brand_info); + } else { + compat_freebsd_32bit = 0; } } SYSINIT(elf32, SI_SUB_EXEC, SI_ORDER_FIRST, register_elf32_brand, NULL); diff --git a/sys/compat/freebsd32/freebsd32_misc.c b/sys/compat/freebsd32/freebsd32_misc.c index c26e7b97e717..d9266f57ac94 100644 --- a/sys/compat/freebsd32/freebsd32_misc.c +++ b/sys/compat/freebsd32/freebsd32_misc.c @@ -123,7 +123,18 @@ #include <compat/freebsd32/freebsd32_signal.h> #include <compat/freebsd32/freebsd32_proto.h> -FEATURE(compat_freebsd_32bit, "Compatible with 32-bit FreeBSD"); +int compat_freebsd_32bit = 1; + +static void +register_compat32_feature(void *arg) +{ + if (!compat_freebsd_32bit) + return; + + FEATURE_ADD("compat_freebsd_32bit", "Compatible with 32-bit FreeBSD"); +} +SYSINIT(freebsd32, SI_SUB_EXEC, SI_ORDER_ANY, register_compat32_feature, + NULL); struct ptrace_io_desc32 { int piod_op; diff --git a/sys/compat/freebsd32/freebsd32_util.h b/sys/compat/freebsd32/freebsd32_util.h index 67f0c099792a..c32c7a2ef4c1 100644 --- a/sys/compat/freebsd32/freebsd32_util.h +++ b/sys/compat/freebsd32/freebsd32_util.h @@ -122,4 +122,6 @@ struct image_args; int freebsd32_exec_copyin_args(struct image_args *args, const char *fname, enum uio_seg segflg, uint32_t *argv, uint32_t *envv); +extern int compat_freebsd_32bit; + #endif /* !_COMPAT_FREEBSD32_FREEBSD32_UTIL_H_ */
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