diff options
| author | Druid520 <r.ustydruid520@proton.me> | 2026-08-17 16:32:37 -0700 |
|---|---|---|
| committer | Druid520 <r.ustydruid520@proton.me> | 2026-08-17 16:32:37 -0700 |
| commit | 355bb650b0b9548b604040ca6725937538ff5ff7 (patch) | |
| tree | 14220c455572fcc9ffea2106a2192037114ec482 /src | |
| parent | fd9e51b838f454894940940110f2f18bedf5e621 (diff) | |
MOD: add better linux support and fix argv/argc.
Diffstat (limited to 'src')
| -rw-r--r-- | src/linux-start.o | bin | 0 -> 776 bytes | |||
| -rw-r--r-- | src/linux-start.s | 16 | ||||
| -rw-r--r-- | src/netbsd-start.s (renamed from src/start.s) | 3 |
3 files changed, 17 insertions, 2 deletions
| diff --git a/src/linux-start.o b/src/linux-start.o new file mode 100644 index 0000000..72750c8 --- /dev/null +++ b/src/linux-start.o | |||
| Binary files differ | |||
| diff --git a/src/linux-start.s b/src/linux-start.s new file mode 100644 index 0000000..6392e45 --- /dev/null +++ b/src/linux-start.s | |||
| @@ -0,0 +1,16 @@ | |||
| 1 | .section .text | ||
| 2 | .globl _start | ||
| 3 | .type _start, @function | ||
| 4 | _start: | ||
| 5 | xorq %rbp, %rbp # frame ptr (%rbp) = null. marks stack bottom. | ||
| 6 | |||
| 7 | movq (%rsp), %rdi # argc = first 4 bytes of stack. | ||
| 8 | leaq 8(%rsp), %rsi # argv = address of first arg ptr. | ||
| 9 | |||
| 10 | call main | ||
| 11 | |||
| 12 | movl %eax, %edi # status = ret val. | ||
| 13 | movl $60, %eax # SYS_exit = 60. | ||
| 14 | syscall | ||
| 15 | |||
| 16 | hlt # if syscall fails hang. | ||
| diff --git a/src/start.s b/src/netbsd-start.s index 683bfe7..e4e960e 100644 --- a/src/start.s +++ b/src/netbsd-start.s | |||
| @@ -4,7 +4,7 @@ | |||
| 4 | _start: | 4 | _start: |
| 5 | xorq %rbp, %rbp # frame ptr (%rbp) = null. marks stack bottom. | 5 | xorq %rbp, %rbp # frame ptr (%rbp) = null. marks stack bottom. |
| 6 | 6 | ||
| 7 | movl (%rsp), %edi # argc = first 4 bytes of stack. | 7 | movq (%rsp), %rdi # argc = first 4 bytes of stack. |
| 8 | leaq 8(%rsp), %rsi # argv = address of first arg ptr. | 8 | leaq 8(%rsp), %rsi # argv = address of first arg ptr. |
| 9 | 9 | ||
| 10 | call main | 10 | call main |
| @@ -13,5 +13,4 @@ _start: | |||
| 13 | movl $1, %eax # SYS_exit = 1. | 13 | movl $1, %eax # SYS_exit = 1. |
| 14 | syscall | 14 | syscall |
| 15 | 15 | ||
| 16 | .size _start, .-_start | ||
| 17 | hlt # if syscall fails hang. | 16 | hlt # if syscall fails hang. |