diff options
Diffstat (limited to 'src/runtime/rt0_linux_arm64.s')
| -rw-r--r-- | src/runtime/rt0_linux_arm64.s | 68 |
1 files changed, 4 insertions, 64 deletions
diff --git a/src/runtime/rt0_linux_arm64.s b/src/runtime/rt0_linux_arm64.s index 0eb8fc2f48..eed9c5f920 100644 --- a/src/runtime/rt0_linux_arm64.s +++ b/src/runtime/rt0_linux_arm64.s @@ -3,71 +3,11 @@ // license that can be found in the LICENSE file. #include "textflag.h" -#include "cgo/abi_arm64.h" -TEXT _rt0_arm64_linux(SB),NOSPLIT|NOFRAME,$0 - MOVD 0(RSP), R0 // argc - ADD $8, RSP, R1 // argv - BL main(SB) +TEXT _rt0_arm64_linux(SB),NOSPLIT,$0 + JMP _rt0_arm64(SB) // When building with -buildmode=c-shared, this symbol is called when the shared // library is loaded. -TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$184 - // Preserve callee-save registers. - SAVE_R19_TO_R28(24) - SAVE_F8_TO_F15(104) - - // Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go - MOVD ZR, g - - MOVD R0, _rt0_arm64_linux_lib_argc<>(SB) - MOVD R1, _rt0_arm64_linux_lib_argv<>(SB) - - // Synchronous initialization. - MOVD $runtime·libpreinit(SB), R4 - BL (R4) - - // Create a new thread to do the runtime initialization and return. - MOVD _cgo_sys_thread_create(SB), R4 - CBZ R4, nocgo - MOVD $_rt0_arm64_linux_lib_go(SB), R0 - MOVD $0, R1 - SUB $16, RSP // reserve 16 bytes for sp-8 where fp may be saved. - BL (R4) - ADD $16, RSP - B restore - -nocgo: - MOVD $0x800000, R0 // stacksize = 8192KB - MOVD $_rt0_arm64_linux_lib_go(SB), R1 - MOVD R0, 8(RSP) - MOVD R1, 16(RSP) - MOVD $runtime·newosproc0(SB),R4 - BL (R4) - -restore: - // Restore callee-save registers. - RESTORE_R19_TO_R28(24) - RESTORE_F8_TO_F15(104) - RET - -TEXT _rt0_arm64_linux_lib_go(SB),NOSPLIT,$0 - MOVD _rt0_arm64_linux_lib_argc<>(SB), R0 - MOVD _rt0_arm64_linux_lib_argv<>(SB), R1 - MOVD $runtime·rt0_go(SB),R4 - B (R4) - -DATA _rt0_arm64_linux_lib_argc<>(SB)/8, $0 -GLOBL _rt0_arm64_linux_lib_argc<>(SB),NOPTR, $8 -DATA _rt0_arm64_linux_lib_argv<>(SB)/8, $0 -GLOBL _rt0_arm64_linux_lib_argv<>(SB),NOPTR, $8 - - -TEXT main(SB),NOSPLIT|NOFRAME,$0 - MOVD $runtime·rt0_go(SB), R2 - BL (R2) -exit: - MOVD $0, R0 - MOVD $94, R8 // sys_exit - SVC - B exit +TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$0 + JMP _rt0_arm64_lib(SB) |