diff options
Diffstat (limited to 'riscv/trunk/rtl/linux/riscv64/dllprt0.as')
| -rw-r--r-- | riscv/trunk/rtl/linux/riscv64/dllprt0.as | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/riscv/trunk/rtl/linux/riscv64/dllprt0.as b/riscv/trunk/rtl/linux/riscv64/dllprt0.as new file mode 100644 index 0000000000..a7b7ee585d --- /dev/null +++ b/riscv/trunk/rtl/linux/riscv64/dllprt0.as @@ -0,0 +1,80 @@ +/* + * This file is part of the Free Pascal run time library. + * Copyright (c) 2011 by Thomas Schatzl, + * member of the Free Pascal development team. + * + * Startup code for shared libraries, ARM version. + * + * See the file COPYING.FPC, included in this distribution, + * for details about the copyright. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + */ + +.file "dllprt0.as" +.text + .globl _startlib + .type _startlib,function +_startlib: + .globl FPC_SHARED_LIB_START + .type FPC_SHARED_LIB_START,function +FPC_SHARED_LIB_START: + sw x1, -4(x2) + sw x8, -8(x2) + addi x8, x2, 0 + addi x2, x2, -8 + + /* a1 contains argc, a2 contains argv and a3 contains envp */ + lui x15, %hi(operatingsystem_parameter_argc) + addi x15,x15,%lo(operatingsystem_parameter_argc) + sw a1, (x15) + + lui x15, %hi(operatingsystem_parameter_argv) + addi x15,x15,%lo(operatingsystem_parameter_argv) + sw a2, (x15) + + lui x15, %hi(operatingsystem_parameter_envp) + addi x15,x15,%lo(operatingsystem_parameter_envp) + sw a3, (x15) + + /* save initial stackpointer */ + lui x15, %hi(__stklen) + addi x15,x15,%lo(__stklen) + sw x2, (x15) + + /* call main and exit normally */ + jal x1, PASCALMAIN + lw x8, -8(x8) + lw x1, -4(x8) + + jalr x0, x1 + + .globl _haltproc + .type _haltproc,function +_haltproc: + /* reload exitcode */ + lui x10, %hi(operatingsystem_result) + addi x10,x10,%lo(operatingsystem_result) + addi x17, x0, 248 + scall + jal x0, _haltproc + +.data + + .type operatingsystem_parameters,object + .size operatingsystem_parameters,12 +operatingsystem_parameters: + .skip 3*4 + .global operatingsystem_parameter_envp + .global operatingsystem_parameter_argc + .global operatingsystem_parameter_argv + .set operatingsystem_parameter_envp,operatingsystem_parameters+0 + .set operatingsystem_parameter_argc,operatingsystem_parameters+4 + .set operatingsystem_parameter_argv,operatingsystem_parameters+8 + +.bss + + .comm __stkptr,4 + |