Date: Fri, 21 Oct 2022 09:18:00 -0700 From: Mark Millard <marklmi@yahoo.com> To: Kristof Provost <kp@FreeBSD.org>, dev-commits-src-main@freebsd.org, "kib@freebsd.org" <kib@FreeBSD.org> Subject: Re: git: 9cabef3d146e - main - ldd: use direct exec mode unconditionally Message-ID: <EFD1D713-69AF-41FE-BC3B-C356A3BCC935@yahoo.com> References: <EFD1D713-69AF-41FE-BC3B-C356A3BCC935.ref@yahoo.com>
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Kristof Provost <kp_at_FreeBSD.org> wrote on Date: Fri, 21 Oct 2022 12:18:04 UTC : > On 6 Oct 2022, at 17:50, Konstantin Belousov wrote: > > The branch main has been updated by kib: > > > > URL:=20 > > = https://cgit.FreeBSD.org/src/commit/?id=3D9cabef3d146e9a844813b6bc8952d6cf= 2e9d45e5 > > > > commit 9cabef3d146e9a844813b6bc8952d6cf2e9d45e5 > > Author: Konstantin Belousov <kib@FreeBSD.org> > > AuthorDate: 2022-09-21 13:55:44 +0000 > > Commit: Konstantin Belousov <kib@FreeBSD.org> > > CommitDate: 2022-10-06 15:50:26 +0000 > > > > ldd: use direct exec mode unconditionally > > > > Trying to exec malformed or unusual binary, for instance, a=20 > > non-FreeBSD > > ABI, or using a non-standard interpreter, might give unexpected=20= > > outcome. > > > > Reported by: The UK's National Cyber Security Centre (NCSC) > > Reviewed by: emaste, markj, philip > > Discussed with: jhb > > Sponsored by: The FreeBSD Foundation > > admbug: 991 > > PR: 127276, 175339, 231926 > > MFC after: 1 week > > Differential revision: https://reviews.freebsd.org/D36650 > > > This appears to break things for armv7 (running on aarch64). >=20 > This manifests while building pfsense (for 3100 / armv7), which we do = on=20 > an aarch64 vm (to avoid having to deal with qemu, and because it=E2=80=99= s=20 > faster). My context is a Cortex-A72 system (a HoneyComb), just via use of poudriere-devel armv7 jails (no qemu use): # poudriere jail -jmain-CA7 -i Jail name: main-CA7 Jail version: 14.0-CURRENT Jail arch: arm.armv7 Jail method: null Jail mount: /usr/obj/DESTDIRs/main-CA7-poud Jail fs: =20 Jail updated: 2021-06-27 17:58:33 Jail pkgbase: disabled where /usr/obj/DESTDIRs/main-CA7-poud has an installed armv7 world, following poudriere's requirements for such. > During that build a couple ports fail to build, including=20 > databases/sqlite3. > It fails running `/usr/bin/ldd -a=20 > = "/wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/bin/sql= ite3"=20 > = "/wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/lib/lib= sqlite3.so=E2=80=9D`,=20 > which produces: >=20 > ld-elf.so.1:=20 > = /wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/bin/sqli= te3:=20 > mmap of entire address space failed: Cannot allocate memory > = /wrkdirs/usr/ports/databases/sqlite3/work-default/stage/usr/local/bin/sqli= te3:=20 > exit status 1 Same here. So far, my ports update also got such for attempting to build devel/gobject-introspection : ld-elf.so.1: = /wrkdirs/usr/ports/devel/gobject-introspection/work/gobject-introspection-= 1.74.0/_build/tmp-introspectjq90y07h/GLib-2.0: mmap of entire address = space failed: Cannot allocate memory = /wrkdirs/usr/ports/devel/gobject-introspection/work/gobject-introspection-= 1.74.0/_build/tmp-introspectjq90y07h/GLib-2.0: exit status 1 . . . subprocess.CalledProcessError: Command '['ldd', = '/wrkdirs/usr/ports/devel/gobject-introspection/work/gobject-introspection= -1.74.0/_build/tmp-introspectjq90y07h/GLib-2.0']' returned non-zero exit = status 1. > That fails doing the `mapbase =3D mmap(base_addr, mapsize, PROT_NONE,=20= > base_flags, -1, 0);` call in rtld-elf=E2=80=99s map_object():217. That = call=20 > does `mmap(0x10000, 0x1dc000, PROT_NONE, 0x6010, -1, 0) =3D> = 0xffffffff`. >=20 > With this patch reverted we can build successfully. For reference (long output line split for readability): # uname -apKU FreeBSD CA72_16Gp_ZFS 14.0-CURRENT FreeBSD 14.0-CURRENT #63 main-n258610-ba7319e9091b-dirty: Fri Oct 14 14:29:14 PDT 2022 = root@CA72_16Gp_ZFS:/usr/obj/BUILDs/main-CA72-nodbg-clang/usr/main-src/arm6= 4.aarch64/sys/GENERIC-NODBG-CA72 arm64 aarch64 1400072 1400072 /usr/obj/DESTDIRs/main-CA7-poud has the same FreeBSD vintage, but for armv7. (poudriere is still running.) =3D=3D=3D Mark Millard marklmi at yahoo.com
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