Our mechanism to override the default (pure C) memory function
implementations (memset, memcpy, memmove) with architecture-specific
optimized assembly versions doesn't actually work: it turns out that
weak functions don't work as you'd naively expect when you pack them
together with a strong definition from a different object into a static
library. When a linker tries to resolve a symbol from a static library,
it just picks the first one it finds, even if it is weak. It doesn't
evaluate all objects in the library to see if there are other strong
definitions.
To fix this, this patch gets rid of the weak symbols and uses Kconfigs
instead. It adds an optimized memmove() implementation for x86 because
that makes things easier (then all architectures either override all
three functions or none of them). Also remove memcmp() from the
functions that can be overridden for now because nobody ever needed that
anyway.
Change-Id: Iedf9898247f1999e56fde3233fad8b7cb36b1269
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87766
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add strlen() and strnlen() to commonlib/bsd by rewriting them from
scratch, and remove the same functions from coreboot and libpayload.
Note that in the existing libpayload implementation, these functions
return 0 for NULL strings. Given that POSIX doesn't require the NULL
check and that other major libc implementations (e.g. glibc [1]) don't
seem to do that, the new functions also don't perform the NULL check.
[1] https://github.com/bminor/glibc/blob/master/sysdeps/i386/strlen.c
Change-Id: I1203ec9affabe493bd14b46662d212b08240cced
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83830
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Stefan thinks they don't add value.
Command used:
sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool)
The exceptions are for:
- crossgcc (patch file)
- gcov (imported from gcc)
- elf.h (imported from GNU's libc)
- nvramtool (more complicated header)
The removed lines are:
- fmt.Fprintln(f, "/* This file is part of the coreboot project. */")
-# This file is part of a set of unofficial pre-commit hooks available
-/* This file is part of coreboot */
-# This file is part of msrtool.
-/* This file is part of msrtool. */
- * This file is part of ncurses, designed to be appended after curses.h.in
-/* This file is part of pgtblgen. */
- * This file is part of the coreboot project.
- /* This file is part of the coreboot project. */
-# This file is part of the coreboot project.
-# This file is part of the coreboot project.
-## This file is part of the coreboot project.
--- This file is part of the coreboot project.
-/* This file is part of the coreboot project */
-/* This file is part of the coreboot project. */
-;## This file is part of the coreboot project.
-# This file is part of the coreboot project. It originated in the
- * This file is part of the coreinfo project.
-## This file is part of the coreinfo project.
- * This file is part of the depthcharge project.
-/* This file is part of the depthcharge project. */
-/* This file is part of the ectool project. */
- * This file is part of the GNU C Library.
- * This file is part of the libpayload project.
-## This file is part of the libpayload project.
-/* This file is part of the Linux kernel. */
-## This file is part of the superiotool project.
-/* This file is part of the superiotool project */
-/* This file is part of uio_usbdebug */
Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
- Constify the string argument
- Change int to size_t, which is what xmalloc expects
Change-Id: I8b5a13319ded4025f883760f2b6d4d7a9ad9fb8b
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33793
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
libfdt requires memchr. Add missing function to libc.
Change-Id: I872026559d16a352f350147c9d7c4be97456a99f
Signed-off-by: Philipp Hug <philipp@hug.cx>
Reviewed-on: https://review.coreboot.org/c/31354
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This patch adds a simple function to convert a string in UTF-16LE
to ASCII.
TEST=Ran against a string found in a GPT with the intended outcome
BRANCH=none
BUG=none
Change-Id: I94ec0a32f5712259d3d0caec2233c992330228e3
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 1104db8328
Original-Signed-off-by: Dan Ehrenberg <dehrenberg@chromium.org>
Original-Change-Id: I50ca5bfdfbef9e084321b2beb1b8d4194ca5af9c
Original-Reviewed-on: https://chromium-review.googlesource.com/231456
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/8733
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
according to libc/posix traditions, to simplify porting applications to
payloads.
It also adds a couple of functions:
strcasecmp, strncasecmp, strcat, strtol, strspn, strcspn, strtok_r,
strtok, perror, exit, getpagesize
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5643 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
