diff options
| -rw-r--r-- | libc/sysdeps/linux/nios2/crt1.S (renamed from libc/sysdeps/linux/nios2/crt0.S) | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/libc/sysdeps/linux/nios2/crt0.S b/libc/sysdeps/linux/nios2/crt1.S index 95c9450cd..948eeb1ed 100644 --- a/libc/sysdeps/linux/nios2/crt0.S +++ b/libc/sysdeps/linux/nios2/crt1.S @@ -8,6 +8,7 @@ * directory of this archive for more details. * * Written by Wentao Xu <wentao@microtronix.com> + * Updated by Thomas Chou <thomas@wytron.com.tw> for crt1.S * */ @@ -18,7 +19,8 @@ .type __start,@function .weak _init .weak _fini - .type __uClibc_start_main,@function + .type main,@function + .type __uClibc_main,@function .type __h_errno_location, @function .type _stdio_init, @function .type _stdio_term, @function @@ -35,30 +37,34 @@ _start: movhi gp, %hiadj(_gp) addi gp, gp, %lo(_gp) - /* load argc, argv, envp from stack */ - ldw r4, 0(sp) - ldw r5, 4(sp) - ldw r6, 8(sp) - + /* load main, argc, argv from stack */ + movhi r4, %hi(main) + ori r4, r4, %lo(main) /* main */ + ldw r5, 0(sp) /* argc */ + ldw r6, 4(sp) /* argv */ + /* load the 4th arg */ movhi r7, %hi(_init) ori r7, r7, %lo(_init) - + /* reuse the argc stack slot for the 5th arg */ movhi r8, %hi(_fini) ori r8, r8, %lo(_fini) stw r8, 0(sp) - + + stw r2, 4(sp) /* rtld_fini */ + stw sp, 8(sp) /* stack_end */ + /* call uClibc_main, shouldn't return */ #ifdef __PIC__ /* just pray 16 bit offset is enough */ - br __uClibc_start_main + br __uClibc_main #else - call __uClibc_start_main + call __uClibc_main #endif /* crash in the event of return */ __exit: movui r2, TRAP_ID_SYSCALL movui r3, __NR_exit - trap
\ No newline at end of file + trap |