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| #include "go_asm.h"
| #include "textflag.h"
|
| TEXT _rt0_ppc64le_linux(SB),NOSPLIT,$0
| XOR R0, R0 // Make sure R0 is zero before _main
| BR _main<>(SB)
|
| TEXT _rt0_ppc64le_linux_lib(SB),NOSPLIT,$-8
| // Start with standard C stack frame layout and linkage.
| MOVD LR, R0
| MOVD R0, 16(R1) // Save LR in caller's frame.
| MOVW CR, R0 // Save CR in caller's frame
| MOVD R0, 8(R1)
| MOVDU R1, -320(R1) // Allocate frame.
|
| // Preserve callee-save registers.
| MOVD R14, 24(R1)
| MOVD R15, 32(R1)
| MOVD R16, 40(R1)
| MOVD R17, 48(R1)
| MOVD R18, 56(R1)
| MOVD R19, 64(R1)
| MOVD R20, 72(R1)
| MOVD R21, 80(R1)
| MOVD R22, 88(R1)
| MOVD R23, 96(R1)
| MOVD R24, 104(R1)
| MOVD R25, 112(R1)
| MOVD R26, 120(R1)
| MOVD R27, 128(R1)
| MOVD R28, 136(R1)
| MOVD R29, 144(R1)
| MOVD g, 152(R1) // R30
| MOVD R31, 160(R1)
| FMOVD F14, 168(R1)
| FMOVD F15, 176(R1)
| FMOVD F16, 184(R1)
| FMOVD F17, 192(R1)
| FMOVD F18, 200(R1)
| FMOVD F19, 208(R1)
| FMOVD F20, 216(R1)
| FMOVD F21, 224(R1)
| FMOVD F22, 232(R1)
| FMOVD F23, 240(R1)
| FMOVD F24, 248(R1)
| FMOVD F25, 256(R1)
| FMOVD F26, 264(R1)
| FMOVD F27, 272(R1)
| FMOVD F28, 280(R1)
| FMOVD F29, 288(R1)
| FMOVD F30, 296(R1)
| FMOVD F31, 304(R1)
|
| MOVD R3, _rt0_ppc64le_linux_lib_argc<>(SB)
| MOVD R4, _rt0_ppc64le_linux_lib_argv<>(SB)
|
| // Synchronous initialization.
| MOVD $runtime·reginit(SB), R12
| MOVD R12, CTR
| BL (CTR)
| MOVD $runtime·libpreinit(SB), R12
| MOVD R12, CTR
| BL (CTR)
|
| // Create a new thread to do the runtime initialization and return.
| MOVD _cgo_sys_thread_create(SB), R12
| CMP $0, R12
| BEQ nocgo
| MOVD $_rt0_ppc64le_linux_lib_go(SB), R3
| MOVD $0, R4
| MOVD R12, CTR
| BL (CTR)
| BR done
|
| nocgo:
| MOVD $0x800000, R12 // stacksize = 8192KB
| MOVD R12, 8(R1)
| MOVD $_rt0_ppc64le_linux_lib_go(SB), R12
| MOVD R12, 16(R1)
| MOVD $runtime·newosproc0(SB),R12
| MOVD R12, CTR
| BL (CTR)
|
| done:
| // Restore saved registers.
| MOVD 24(R1), R14
| MOVD 32(R1), R15
| MOVD 40(R1), R16
| MOVD 48(R1), R17
| MOVD 56(R1), R18
| MOVD 64(R1), R19
| MOVD 72(R1), R20
| MOVD 80(R1), R21
| MOVD 88(R1), R22
| MOVD 96(R1), R23
| MOVD 104(R1), R24
| MOVD 112(R1), R25
| MOVD 120(R1), R26
| MOVD 128(R1), R27
| MOVD 136(R1), R28
| MOVD 144(R1), R29
| MOVD 152(R1), g // R30
| MOVD 160(R1), R31
| FMOVD 168(R1), F14
| FMOVD 176(R1), F15
| FMOVD 184(R1), F16
| FMOVD 192(R1), F17
| FMOVD 200(R1), F18
| FMOVD 208(R1), F19
| FMOVD 216(R1), F20
| FMOVD 224(R1), F21
| FMOVD 232(R1), F22
| FMOVD 240(R1), F23
| FMOVD 248(R1), F24
| FMOVD 256(R1), F25
| FMOVD 264(R1), F26
| FMOVD 272(R1), F27
| FMOVD 280(R1), F28
| FMOVD 288(R1), F29
| FMOVD 296(R1), F30
| FMOVD 304(R1), F31
|
| ADD $320, R1
| MOVD 8(R1), R0
| MOVFL R0, $0xff
| MOVD 16(R1), R0
| MOVD R0, LR
| RET
|
| TEXT _rt0_ppc64le_linux_lib_go(SB),NOSPLIT,$0
| MOVD _rt0_ppc64le_linux_lib_argc<>(SB), R3
| MOVD _rt0_ppc64le_linux_lib_argv<>(SB), R4
| MOVD $runtime·rt0_go(SB), R12
| MOVD R12, CTR
| BR (CTR)
|
| DATA _rt0_ppc64le_linux_lib_argc<>(SB)/8, $0
| GLOBL _rt0_ppc64le_linux_lib_argc<>(SB),NOPTR, $8
| DATA _rt0_ppc64le_linux_lib_argv<>(SB)/8, $0
| GLOBL _rt0_ppc64le_linux_lib_argv<>(SB),NOPTR, $8
|
| TEXT _main<>(SB),NOSPLIT,$-8
| // In a statically linked binary, the stack contains argc,
| // argv as argc string pointers followed by a NULL, envv as a
| // sequence of string pointers followed by a NULL, and auxv.
| // There is no TLS base pointer.
| //
| // In a dynamically linked binary, r3 contains argc, r4
| // contains argv, r5 contains envp, r6 contains auxv, and r13
| // contains the TLS pointer.
| //
| // Figure out which case this is by looking at r4: if it's 0,
| // we're statically linked; otherwise we're dynamically
| // linked.
| CMP R0, R4
| BNE dlink
|
| // Statically linked
| MOVD 0(R1), R3 // argc
| ADD $8, R1, R4 // argv
| MOVD $runtime·m0+m_tls(SB), R13 // TLS
| ADD $0x7000, R13
|
| dlink:
| BR main(SB)
|
| TEXT main(SB),NOSPLIT,$-8
| MOVD $runtime·rt0_go(SB), R12
| MOVD R12, CTR
| BR (CTR)
|
|
