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Requested by: Simon Gerraty <sjg@juniper.net>
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This should be a non-functional change. A future change should
address the functional differences between these three and converge
on a single source.
Differential Revision: https://reviews.freebsd.org/D2058
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
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dependent functions have been implemented, but this is enough for world.
Differential Revision: https://reviews.freebsd.org/D2132
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
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redzone below the stack pointer for scratch space and requires
interrupt and signal frames to avoid overwriting it. However, EFI uses
the Windows ABI which does not support this. As a result, interrupt
handlers in EFI push their interrupt frames directly on top of the
stack pointer. If the compiler used the red zone in a function in the
EFI loader, then a device interrupt that occurred while that function
was running could trash its local variables. In practice this happens
fairly reliable when using gzipfs as an interrupt during decompression
can trash the local variables in the inflate_table() function
resulting in corrupted output or hangs.
Fix this by disabling the redzone for amd64 EFI binaries. This
requires building not only the loader but any libraries used by the
loader without redzone support.
Thanks to Jilles for pointing me at the redzone once I found the stack
corruption.
Differential Revision: https://reviews.freebsd.org/D2054
Reviewed by: imp
MFC after: 2 weeks
Sponsored by: Cisco Systems, Inc.
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FAT filesystems as is done for other filesystems in the loader.
MFC after: 1 week
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confusion, the _setjmp.S in libstand was never being used and was instead
being shadowed by the libc version. Since the libc version now uses FPRs,
it caused loader to crash.
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in bitfield argument is wrong, as it will be treated as bit 10, causing any
code printing >=10 bits with bit 10 on as having a trailing comma.
Newline (intended one) should be part of the format string (already present
in the examples).
Also fix grammar and kill EOL whitespace in comment while here.
PR: 195005
Approved by: bdrewery
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too. (This did not show during a make universe, strangely.)
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be some kind of problem with the version of makefs used for these disks.
There may be a better way to handle this problem, so I've set the MFC
timer for a fairly long time period.
MFC after: 2 weeks
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only happen on every Nth call. Update the existing twiddle() calls done in
various IO loops to roughly reflect the relative IO sizes. That is, tftp
and nfs call twiddle() on every 1K block, ufs on every filesystem block,
so the network calls now use a much larger divisor than disk IO calls.
Also add a new twiddle_divisor() function that allows an application to set
a global divisor that is applied on top of the per-call divisors. Nothing
calls this yet, but loader(8) will be using it to further throttle the
cursor for slow serial consoles.
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the oabi is still in the tree, but it is expected this will be removed
as developers work on surrounding code.
With this commit the ARM EABI is the only supported supported ABI by
FreeBSD on ARMa 32-bit processors.
X-MFC after: never
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D876
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compressed tarball, aka package. The file system assumes that the
files are layed-out in the same order as needed to allow for the
package to be streamed. As such, it does not read an entire package
into memory first.
Some properties of the file system:
o Files that start with '+' are silently skipped. These are found
in FreeBSD package files.
o Files smaller than or equal to 4KB will be cached in memory and
as such allow for some flexibility in accessing files out of
order.
o Files with the .tgz suffix are assumed to be (sub-)packages and
signal the end for a directory scan.
Obtained from: Juniper Networks, Inc.
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to counteract the default behaviour of always trying each and every
file system until one succeeds, or the open fails. The problem with the
loader is that we've implemented features based on this behavior. The
handling of compressed files is a good example of this. However, it is
in general highly undesirable to not have a one-time probe (or taste
in the geom lingo), followed by something similar to a mount whenever
we (first) read from a device. Everytime we go to the same device, we
can reasonably assume it (still) has the same file system. For file
systems that need to do far more that a trivial read of a super block,
not having something similar to a mount operation is disastrous from
a performance (and thus usability) perspective.
But, again, since we've implemented features based on this stateless
approach, things can get complicated quickly if and when we want to
change this. And yet, we sometimes do need stateful behaviour.
For this reason, this change simply introduces exclusive_file_system.
When set to the fsops of the file system to use, the open call will
only try this file system. Setting it to NULL restores the default
behaviour. It's a low-cost (low-brow?) approach to provide enough
control without re-implementing the guts of the loader.
A good example of when this is useful is when we're trying to load
files out of a container (say, a software packaga) that itself lives
on a file system or is fetched over the network. While opening the
container can be done in the normal stateless manner, once it is
opened, subsequent opens should only consider the container.
Obtained from: Juniper Networks, Inc.
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true on amd64 I'm not quite positive this is the "correct" solution for
this but it does seem to compile and shut up the spew of warnings when
compiling libstand for userboot.
Add two _Static_asserts() so that in the future somebody will get a compile
failure if an architecture develops that violates the assumptions of this
code. (strongly suggested by jmg)
Change commetns to indicate int types instead of long. (noted by ian in
phabric review)
Phabric: https://phabric.freebsd.org/D443
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This includes:
o All directories named *ia64*
o All files named *ia64*
o All ia64-specific code guarded by __ia64__
o All ia64-specific makefile logic
o Mention of ia64 in comments and documentation
This excludes:
o Everything under contrib/
o Everything under crypto/
o sys/xen/interface
o sys/sys/elf_common.h
Discussed at: BSDcan
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PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>
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Suggested by: ae @
Sponsored by: DARPA, AFRL
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Reviewed by: brooks @
Sponsored by: DARPA, AFRL
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from the latter.
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The 32-bit bootloaders now link against libstand.a in sys/boot/libstand32,
so there is no need to force /usr/lib/libstand.a to be 32-bit.
This is equivalent to r261568 for amd64.
Sponsored by: The FreeBSD Foundation
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The 32-bit bootloaders now link against libstand.a in sys/boot/libstand32,
so there is no need to force /usr/lib/libstand.a to be 32-bit.
Sponsored by: The FreeBSD Foundation
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device drivers. Recent versions of u-boot run with the MMU enabled, and
require DMA-based I/O to be aligned to cache line boundaries.
These changes are based on a patch originally submitted by Juergen Weiss,
but I reworked them and thus any problems are purely my fault.
Submitted by: "Juergen Weiss" <weiss@uni-mainz.de>
Reviewed by: imp, nwhitehorn, jhb
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MFC after: 3 days
X-MFC-With: r259730
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directory is like any subdirectory and as such needs to use a real
cluster number. To this end, keep a DE structure for the root in
the DOS_FS structure and populate it accordingly.
While here:
o allow consecutive path separators by skipping them all.
o add missing $FreeBSD$ keyword to dosfs.h.
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code more naive and robust:
1. When setting ev_value, also always set ev_flags appropriately
2. Always check ev_value and ev_flags before calling free.
Both the value and the EV_DYNAMIC property can come directly from the
consumers of the environment functionality, so it's good to be careful.
And since this code is typically not looked at for long periods of
time, it's good to have it be a little "dumb-looking".
Trigger case for the bug:
env_setenv("foo", 0, "1", NULL, NULL);
env_setenv("foo", 0, "2", NULL, NULL);
Obtained from: Juniper Networks, Inc.
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possible double free.
Obtained from: Juniper Networks, Inc.
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Obtained from: Juniper Networks, Inc.
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Sponsored by: The FreeBSD Foundation
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Only accept 'net' and 'pxe' devices as underlying transport
in tftp.c on x86. Prior to this change tftp code would attempt
to send packets over any boot device, including zfs one with
predictably sad results.
Approved by: re (gjb)
MFC After: 1 month
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There is an oppinion that result of that equation is compiler-specific.
Submitted by: dt71@gmx.com, kientzle
Reviewed by: rmacklem
MFC after: 3 days
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Based on r134760:
Reset the seek pointer to 0 when a file is successfully opened,
since otherwise the initial seek offset will contain the directory
offset of the filesystem block that contained its directory entry.
This bug was mostly harmless because typically the directory is
less than one filesystem block in size so the offset would be zero.
It did however generally break loading a kernel from the (large)
kernel compile directory.
Also reset the seek pointer when a new inode is opened in read_inode(),
though this is not actually necessary now because all callers set
it afterwards.
PR: 177328
Submitted by: Eric van Gyzen
Reviewed by: iedowse
MFC after: 5 days
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of this function since r183876.
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is a bit obfuscated here, as ia64 adds string source files elsewhere, so
simply exclude it here.
Reviewed by: imp
MFC after: 3 days
Sponsored by: DARPA, AFRL
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Trim two now-unneeded (and likely harmful) lines from the libstand
setjmp/longjmp for MIPS.
Spotted by: jmallett
MFC after: 3 days
Sponsored by: DARPA, AFRL
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Reviewed by: imp
Sponsored by: DARPA, AFRL
MFC after: 3 days
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and 64-bit MIPS. Don't use the floating-point coprocessor in the libstand
context for MIPS.
Reviewed by: imp
MFC after: 3 days
Sponsored by: DARPA, AFRL
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a number of builtin functions.
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in newfs_nandfs. In libstand we get crc32 from libz. The polynomial
is not the same as used for nandfs, which is the crc32 used in the
kernel.
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locale code.
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libstand.
* Stop linking the ARM U-Boot loader against libgcc now libstand has the
required symbols.
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