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| author | Danny Holman <dholman@gymli.org> | 2025-10-15 19:51:55 -0500 |
|---|---|---|
| committer | Danny Holman <dholman@gymli.org> | 2025-10-15 19:51:55 -0500 |
| commit | 32ff44d9511bed86104698dff1907577dbd5a0f0 (patch) | |
| tree | eab2d9983529fbbbdda5b2d6d81ae78243023c79 /bootstrap/stage1/arch | |
| parent | bootstrap: stage1: update build configuration (diff) | |
| download | box-32ff44d9511bed86104698dff1907577dbd5a0f0.tar.gz box-32ff44d9511bed86104698dff1907577dbd5a0f0.tar.zst box-32ff44d9511bed86104698dff1907577dbd5a0f0.zip | |
bootstrap: stage1: create a baseline environment
Create a baseline booting environment in the first stage. This should
allow booting on UEFI-aware systems and load the second stage in.
Signed-off-by: Danny Holman <dholman@gymli.org>
Diffstat (limited to 'bootstrap/stage1/arch')
| -rw-r--r-- | bootstrap/stage1/arch/x86_64/asm/__chkstk.s | 25 | ||||
| -rw-r--r-- | bootstrap/stage1/arch/x86_64/asm/entry.s | 25 |
2 files changed, 50 insertions, 0 deletions
diff --git a/bootstrap/stage1/arch/x86_64/asm/__chkstk.s b/bootstrap/stage1/arch/x86_64/asm/__chkstk.s new file mode 100644 index 0000000..7d5f0c4 --- /dev/null +++ b/bootstrap/stage1/arch/x86_64/asm/__chkstk.s @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2025 Danny Holman <dholman@gymli.org> + * + * This file is part of BoxOS, a free and open-source Unix-like operating + * system. + * + * BoxOS is free software; you can redistribute it and/or modify under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * BoxOS is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; + * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A + * PARTICULAR PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * BoxOS; if not, see <https://www.gnu.org/licenses/>. + */ + +.section .text + +# FIXME: this causes GP faults under certain conditions +.global __chkstk +__chkstk: + ret diff --git a/bootstrap/stage1/arch/x86_64/asm/entry.s b/bootstrap/stage1/arch/x86_64/asm/entry.s new file mode 100644 index 0000000..05797ca --- /dev/null +++ b/bootstrap/stage1/arch/x86_64/asm/entry.s @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2025 Danny Holman <dholman@gymli.org> + * + * This file is part of BoxOS, a free and open-source Unix-like operating + * system. + * + * BoxOS is free software; you can redistribute it and/or modify under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * BoxOS is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY; + * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A + * PARTICULAR PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * BoxOS; if not, see <https://www.gnu.org/licenses/>. + */ + +.section .text + +.global _start +_start: + call efi_main + ret |