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| author | Miquel Sabaté Solà <mikisabate@gmail.com> | 2024-11-20 11:43:08 +0100 |
|---|---|---|
| committer | Miquel Sabaté Solà <mikisabate@gmail.com> | 2024-11-20 11:43:08 +0100 |
| commit | fb9627cc985912a57de8b4bedc98991e290e4075 (patch) | |
| tree | b7f0f72df6c6feb6beb672523afde5f793c87755 /kernel/strlen.S | |
| parent | d3afdd9284f7e9838fbde4c941193ec2032d6a26 (diff) | |
| download | fbos-fb9627cc985912a57de8b4bedc98991e290e4075.tar.gz fbos-fb9627cc985912a57de8b4bedc98991e290e4075.zip | |
Fetch the initrd address from the DTB blob
The kernel entry has a pointer to the DTB blob as a parameter. From this
pointer we can parse the the DTB blob to find the properties
"chosen->linux,initrd-start" and "chosen->linux,initrd-start". These
properties are guaranteed to have 64-bit addresses which point where the
initrd is in memory, which we need to fetch the binaries to be loaded.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
Diffstat (limited to 'kernel/strlen.S')
| -rw-r--r-- | kernel/strlen.S | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/kernel/strlen.S b/kernel/strlen.S deleted file mode 100644 index 6185b94..0000000 --- a/kernel/strlen.S +++ /dev/null @@ -1,22 +0,0 @@ -.globl strlen -.type strlen, @function - -/* - * Defined in include/fbos/string.h - * - * size_t strlen(const char *str) - * - * Returns (a0): string length. - * Parameter (a0): string to measure. - * Clobbers: t0, t1. - */ -strlen: - mv t1, a0 -1: - lbu t0, 0(t1) - beqz t0, 2f - addi t1, t1, 1 - j 1b -2: - sub a0, t1, a0 - ret |