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| author | Kartik Agaram <vc@akkartik.com> | 2020-11-11 22:58:29 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-11-11 23:25:55 -0800 |
| commit | 307745bcc2efbd4c5b8191b45d5e1885be1c0089 (patch) | |
| tree | a0da43e2258fea744143b24e2560e042c481125a /init.linux | |
| parent | 7d15b0884eb57657b130b98f3701544fedaf4b7f (diff) | |
| download | mu-307745bcc2efbd4c5b8191b45d5e1885be1c0089.tar.gz | |
7225
Both manual tests described in commit 7222 now work. To make them work I had to figure out how to copy a file. It requires a dependency on a new syscall: lseek.
Diffstat (limited to 'init.linux')
| -rw-r--r-- | init.linux | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/init.linux b/init.linux index 6e482b96..f151d80f 100644 --- a/init.linux +++ b/init.linux @@ -43,6 +43,12 @@ syscall_close: # fd/ebx: int -> status/eax cd/syscall 0x80/imm8 c3/return +# http://man7.org/linux/man-pages/man2/lseek.2.html +syscall_lseek: # fd/ebx: int, offset/ecx: int, whence/edx: int + b8/copy-to-eax 0x13/imm32 + cd/syscall 0x80/imm8 + c3/return + # http://man7.org/linux/man-pages/man2/creat.2.html syscall_creat: # filename/ebx: (addr kernel-string) -> fd-or-error/eax: int b8/copy-to-eax 8/imm32 |