From 02fec4701cee79f875c1d02b8b4aee09380dbcb8 Mon Sep 17 00:00:00 2001 From: Guillaume Cottenceau Date: Thu, 4 Jan 2001 20:04:45 +0000 Subject: integrate dietlibc/stdio per default for cdrom and disk only installs --- mdk-stage1/dietlibc/sparc/start.S | 46 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 mdk-stage1/dietlibc/sparc/start.S (limited to 'mdk-stage1/dietlibc/sparc/start.S') diff --git a/mdk-stage1/dietlibc/sparc/start.S b/mdk-stage1/dietlibc/sparc/start.S new file mode 100644 index 000000000..e948aaddc --- /dev/null +++ b/mdk-stage1/dietlibc/sparc/start.S @@ -0,0 +1,46 @@ +#include "start.h" + +#ifdef __sparc__ + .section ".text" + .align 4 + .global _start + .type _start,@function +_start: + + /* Terminate the stack frame, and reserve space for functions to + drop their arguments. */ + mov %g0, %fp + sub %sp, 6*4, %sp + + /* Extract the arguments and environment as encoded on the stack. The + argument info starts after one register window (16 words) past the SP. */ + ld [%sp+22*4], %o0 + add %sp, 23*4, %o1 + add %o1, %o0, %o2 + add %o2, %o0, %o2 + add %o2, %o0, %o2 + add %o2, %o0, %o2 + add %o2, 4, %o2 + + sethi %hi(environ), %o3 + or %o3, %lo(environ), %o3 + st %o2, [%o3] + + /* When starting a binary via the dynamic linker, %g1 contains the + address of the shared library termination function, which will be + registered with atexit(). If we are statically linked, this will + be NULL. */ + + /* Let libc do the rest of the initialization, and call main. */ + call main + mov %g1, %o5 + + b exit + mov %o0, %i0 + + /* Die very horribly if exit returns. */ + unimp + + .size _start, .-_start +#endif + -- cgit v1.2.1