When both "dest" and "src" are aligned, copying the data in grub_addr_t
sized chunks is more efficient than a byte-by-byte copy.
Also tweak __aeabi_memcpy(), __aeabi_memcpy4(), and __aeabi_memcpy8(),
since grub_memcpy() is not inline anymore.
Optimization for unaligned buffers was omitted to maintain code
simplicity and readability. The current chunk-copy optimization
for aligned buffers already provides a noticeable performance
improvement (*) for Argon2 keyslot decryption.
(*) On my system, for a LUKS2 keyslot configured with a 1 GB Argon2
memory requirement, this patch reduces the decryption time from
22 seconds to 12 seconds.
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
The recent gnulib updates require an implementation of abort(), but the
current macro provided by changeset:
cd37d3d3916c gnulib: Drop no-abort.patch
to config.h.in does not work with the clang compiler since it doesn't
provide a __builtin_trap() implementation, so this element of the
changeset needs to be reverted, and replaced.
After some discussion with Vladimir 'phcoder' Serbinenko and Daniel Kiper
it was suggested to bring back in the change from the changeset:
db7337a3d353 * grub-core/gnulib/regcomp.c (regerror): ...
Which implements abort() as an inline call to grub_abort(), but since
that was made static by changeset:
a8f15bceeafe * grub-core/kern/misc.c (grub_abort): Make static
it is also necessary to revert the specific part that makes it a static
function too.
Another implementation of abort() was found in grub-core/kern/compiler-rt.c
which needs to also be removed to be consistent.
Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Fix the incorrect return value of __clzsi2() function.
Fixes: e795b90 (RISC-V: Add libgcc helpers for clz)
Signed-off-by: Tuan Phan <tphan@ventanamicro.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This patch is similar to commit 9dab2f51e (sparc: Enable __clzsi2() and
__clzdi2()) but for MIPS target and __clzdi2() only, __clzsi2() was
already enabled.
Suggested-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This patch is similiar to commit e795b9011 (RISC-V: Add libgcc helpers
for clz) but for SPARC target.
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Ross Philipson <ross.philipson@oracle.com>
This patch is similiar to commit e795b9011 (RISC-V: Add libgcc helpers
for clz) but for MIPS target.
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Ross Philipson <ross.philipson@oracle.com>
This patch adds support for RISC-V to the grub build system. With this
patch, I can successfully build grub on RISC-V as a UEFI application.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Gcc may decide it wants to call helper functions to execute clz. Provide
them in our own copy of libgcc.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
libgcc for boot environment isn't always present and compatible.
libgcc is often absent if endianness or bit-size at boot is different
from running OS.
libgcc may use optimised opcodes that aren't available on boot time.
So instead of relying on libgcc shipped with the compiler, supply
the functions in GRUB directly.
Tests are present to ensure that those replacement functions behave the
way compiler expects them to.
