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2024-01-11libpayload: Move back the ttb_buffer sectionYi Chou
Moving it into the .ttb_buffer section will accidentally set the LOAD flag. So, move it back to .bss.ttb_buffer section to prevent the binary size bloating. BUG=b:248610274 TEST=Make sure the device is still bootable with this change. BRANCH=none Cq-Depend: chromium:5173448 Change-Id: I9bb08878dd4be01d9ed3f96933f774dd6296f76e Signed-off-by: Yi Chou <yich@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/79800 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-12-01libpayload: Fix the stack and data labelsYi Chou
We should make sure _stack/_estack and the other labels are consistent. And _data & _edata is also useful to clean up the sensitive data on the data section. BUG=b:248610274 TEST=emerge-cherry libpayload BRANCH=none Cq-Depend: chromium:5052462 Change-Id: I589040f4db60b35813ea9f4ba9503244bd7def00 Signed-off-by: Yi Chou <yich@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/79144 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2023-11-23libpayload: Move ttb_buffer to a standalone sectionYi Chou
When cleaning the sensitive data in the memory, we will want to prevent zero out the content of tbb_buffer. Move the ttb_buffer to a standalone section will simplify the problem. BUG=b:248610274 TEST=emerge-cherry libpayload BRANCH=none Change-Id: I610276cbe30552263d791860c15e5ad9a201c744 Signed-off-by: Yi Chou <yich@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/79078 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-07-08libpayload: arm64: fix OUTPUT_ARCH()Michael Walle
There is no bfd "arm64". The correct bfdname is "aarch64". Fix it. With this change libpayload will build with the AArch64 GCC. Change-Id: If7a6b14691107c5d4fc67c3cd3990ecc849d4af1 Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43125 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
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>
2018-10-12libpayload: arm64: Make exception handling closer to arm32Julius Werner
This patch reworks the arm64 exception handling to be more similar to how it works on arm32. This includes a bunch of features like actually saving and restoring more exception state in the exception_state structure and supporting the same sort of partial reentrancy that is useful for GDB. Since there's no instruction to directly load into or store out of SP on arm64, we can't do quite the same thing where we use that to read an exception_state_ptr variable right after exception entry when no other register is available. But we can do something very similar by (ab-)using the "high" stack pointer (SP_EL2) as a pointer to the exception_state struct and providing a function to change it. Change-Id: Ia16a1124be1824392a309ae1f4cb031547d184c1 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/29018 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-03-15libpayload: Move base address, stack and heap size to KconfigStefan Reinauer
This will allow more payloads to use the standard linker script instead of implementing their own. Change-Id: Ie60120769829f427ceb722109d85859b61dbde31 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/14074 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-03-15libpayload: Add comment about ARM64 exception stackStefan Reinauer
Change-Id: I8b74cbf6bdde32c90ad0510e14e899711269e57f Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/14075 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2015-03-21libpayload arm64: Initialize exception stackFurquan Shaikh
Initialize exception stack to be able to handle exceptions properly BUG=chrome-os-partner:31634 BRANCH=None TEST=test_exc successfully generates and handles exceptions on ryu Change-Id: I19163fae080b9ac3297a7ffe404446e427bf9a1c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 99157687c5178c3b3eb79f5589343db1b2b4cc86 Original-Change-Id: I4dc83ff32c1665e22127bf0b1e6d4c6b45c07a4a Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/214608 Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/8782 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-01-09libpayload: Add support for arm64 in libpayloadFurquan Shaikh
Basic support for arm64 is enabled in libpayload. Features added: 1) mem* operations in assembly. 2) Basic exception handling and support for testing exceptions. 3) Caching support. Tested with arm64-generic board compilation. BUG=None BRANCH=None TEST=Compilation successful Original-Change-Id: I4e86301f9c6383abc078e2b70071fb84bd6e4741 Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/187067 Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> (cherry picked from commit a70d13f3d225535843ab352290eab2e1ec7a9b4b) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Ie3affe6a2bdd4fed3058de739d4c6aa573e5b251 Reviewed-on: http://review.coreboot.org/8063 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>