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| author | Michael Brown | 2011-04-27 01:07:42 +0200 |
|---|---|---|
| committer | Michael Brown | 2011-04-27 01:26:38 +0200 |
| commit | a9dbc943aeb73d9267bfbefc95106974a3c94ea0 (patch) | |
| tree | 15b6cc23a5f289d182a950e329adfedd4f459626 /src/arch/i386/core/linux | |
| parent | [sanboot] Add "sanhook" and "sanunhook" commands (diff) | |
| download | ipxe-a9dbc943aeb73d9267bfbefc95106974a3c94ea0.tar.gz ipxe-a9dbc943aeb73d9267bfbefc95106974a3c94ea0.tar.xz ipxe-a9dbc943aeb73d9267bfbefc95106974a3c94ea0.zip | |
[linux] Avoid building Linux-specific prefix on non-Linux builds
Reported-by: David Yeske <dyeske@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/arch/i386/core/linux')
| -rw-r--r-- | src/arch/i386/core/linux/linuxprefix.S | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/arch/i386/core/linux/linuxprefix.S b/src/arch/i386/core/linux/linuxprefix.S new file mode 100644 index 000000000..398d3cb21 --- /dev/null +++ b/src/arch/i386/core/linux/linuxprefix.S @@ -0,0 +1,28 @@ +#include <linux/unistd.h> + + .section ".text" + .code32 + .globl _linux_start + .type _linux_start, @function + +_linux_start: + xorl %ebp, %ebp + + popl %esi // save argc + movl %esp, %edi // save argv + + andl $~15, %esp // 16-byte align the stack + + pushl %edi // argv -> C arg2 + pushl %esi // argc -> C arg1 + + call save_args + + /* Our main doesn't use any arguments */ + call main + + movl %eax, %ebx // rc -> syscall arg1 + movl $__NR_exit, %eax + int $0x80 + + .size _linux_start, . - _linux_start |