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runtime: unify riscv64 library entry point
Cq-Include-Trybots: luci.golang.try:gotip-linux-riscv64 Change-Id: I6470dfc5c9e03dfe5fc535605fdd7d861b9ba2f3 Reviewed-on: https://go-review.googlesource.com/c/go/+/706415 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Joel Sing <joel@sing.id.au> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
qmuntal
Quim Muntal
parent
0c14000f87
commit
36863d6194
3 changed files with 102 additions and 188 deletions
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@ -6,6 +6,104 @@
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#include "funcdata.h"
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#include "funcdata.h"
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#include "textflag.h"
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#include "textflag.h"
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// When building with -buildmode=c-shared, this symbol is called when the shared
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// library is loaded.
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TEXT _rt0_riscv64_lib(SB),NOSPLIT,$224
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// Preserve callee-save registers, along with X1 (LR).
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MOV X1, (8*3)(X2)
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MOV X8, (8*4)(X2)
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MOV X9, (8*5)(X2)
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MOV X18, (8*6)(X2)
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MOV X19, (8*7)(X2)
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MOV X20, (8*8)(X2)
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MOV X21, (8*9)(X2)
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MOV X22, (8*10)(X2)
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MOV X23, (8*11)(X2)
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MOV X24, (8*12)(X2)
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MOV X25, (8*13)(X2)
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MOV X26, (8*14)(X2)
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MOV g, (8*15)(X2)
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MOVD F8, (8*16)(X2)
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MOVD F9, (8*17)(X2)
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MOVD F18, (8*18)(X2)
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MOVD F19, (8*19)(X2)
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MOVD F20, (8*20)(X2)
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MOVD F21, (8*21)(X2)
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MOVD F22, (8*22)(X2)
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MOVD F23, (8*23)(X2)
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MOVD F24, (8*24)(X2)
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MOVD F25, (8*25)(X2)
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MOVD F26, (8*26)(X2)
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MOVD F27, (8*27)(X2)
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// Initialize g as nil in case of using g later e.g. sigaction in cgo_sigaction.go
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MOV X0, g
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MOV A0, _rt0_riscv64_lib_argc<>(SB)
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MOV A1, _rt0_riscv64_lib_argv<>(SB)
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// Synchronous initialization.
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MOV $runtime·libpreinit(SB), T0
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JALR RA, T0
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// Create a new thread to do the runtime initialization and return.
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MOV _cgo_sys_thread_create(SB), T0
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BEQZ T0, nocgo
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MOV $_rt0_riscv64_lib_go(SB), A0
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MOV $0, A1
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JALR RA, T0
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JMP restore
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nocgo:
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MOV $0x800000, A0 // stacksize = 8192KB
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MOV $_rt0_riscv64_lib_go(SB), A1
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MOV A0, 8(X2)
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MOV A1, 16(X2)
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MOV $runtime·newosproc0(SB), T0
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JALR RA, T0
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restore:
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// Restore callee-save registers, along with X1 (LR).
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MOV (8*3)(X2), X1
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MOV (8*4)(X2), X8
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MOV (8*5)(X2), X9
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MOV (8*6)(X2), X18
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MOV (8*7)(X2), X19
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MOV (8*8)(X2), X20
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MOV (8*9)(X2), X21
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MOV (8*10)(X2), X22
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MOV (8*11)(X2), X23
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MOV (8*12)(X2), X24
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MOV (8*13)(X2), X25
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MOV (8*14)(X2), X26
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MOV (8*15)(X2), g
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MOVD (8*16)(X2), F8
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MOVD (8*17)(X2), F9
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MOVD (8*18)(X2), F18
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MOVD (8*19)(X2), F19
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MOVD (8*20)(X2), F20
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MOVD (8*21)(X2), F21
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MOVD (8*22)(X2), F22
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MOVD (8*23)(X2), F23
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MOVD (8*24)(X2), F24
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MOVD (8*25)(X2), F25
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MOVD (8*26)(X2), F26
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MOVD (8*27)(X2), F27
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RET
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TEXT _rt0_riscv64_lib_go(SB),NOSPLIT,$0
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MOV _rt0_riscv64_lib_argc<>(SB), A0
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MOV _rt0_riscv64_lib_argv<>(SB), A1
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MOV $runtime·rt0_go(SB), T0
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JALR ZERO, T0
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DATA _rt0_riscv64_lib_argc<>(SB)/8, $0
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GLOBL _rt0_riscv64_lib_argc<>(SB),NOPTR, $8
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DATA _rt0_riscv64_lib_argv<>(SB)/8, $0
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GLOBL _rt0_riscv64_lib_argv<>(SB),NOPTR, $8
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// func rt0_go()
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// func rt0_go()
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TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
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TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0
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// X2 = stack; A0 = argc; A1 = argv
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// X2 = stack; A0 = argc; A1 = argv
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@ -12,100 +12,8 @@ TEXT _rt0_riscv64_freebsd(SB),NOSPLIT|NOFRAME,$0
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// When building with -buildmode=c-shared, this symbol is called when the shared
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// When building with -buildmode=c-shared, this symbol is called when the shared
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// library is loaded.
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// library is loaded.
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TEXT _rt0_riscv64_freebsd_lib(SB),NOSPLIT,$224
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TEXT _rt0_riscv64_freebsd_lib(SB),NOSPLIT,$0
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// Preserve callee-save registers, along with X1 (LR).
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JMP _rt0_riscv64_lib(SB)
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MOV X1, (8*3)(X2)
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MOV X8, (8*4)(X2)
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MOV X9, (8*5)(X2)
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MOV X18, (8*6)(X2)
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MOV X19, (8*7)(X2)
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MOV X20, (8*8)(X2)
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MOV X21, (8*9)(X2)
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MOV X22, (8*10)(X2)
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MOV X23, (8*11)(X2)
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MOV X24, (8*12)(X2)
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MOV X25, (8*13)(X2)
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MOV X26, (8*14)(X2)
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MOV g, (8*15)(X2)
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MOVD F8, (8*16)(X2)
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MOVD F9, (8*17)(X2)
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MOVD F18, (8*18)(X2)
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MOVD F19, (8*19)(X2)
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MOVD F20, (8*20)(X2)
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MOVD F21, (8*21)(X2)
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MOVD F22, (8*22)(X2)
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MOVD F23, (8*23)(X2)
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MOVD F24, (8*24)(X2)
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MOVD F25, (8*25)(X2)
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MOVD F26, (8*26)(X2)
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MOVD F27, (8*27)(X2)
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// Initialize g as nil in case of using g later e.g. sigaction in cgo_sigaction.go
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MOV X0, g
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MOV A0, _rt0_riscv64_freebsd_lib_argc<>(SB)
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MOV A1, _rt0_riscv64_freebsd_lib_argv<>(SB)
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// Synchronous initialization.
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MOV $runtime·libpreinit(SB), T0
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JALR RA, T0
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// Create a new thread to do the runtime initialization and return.
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MOV _cgo_sys_thread_create(SB), T0
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BEQZ T0, nocgo
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MOV $_rt0_riscv64_freebsd_lib_go(SB), A0
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MOV $0, A1
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JALR RA, T0
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JMP restore
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nocgo:
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MOV $0x800000, A0 // stacksize = 8192KB
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MOV $_rt0_riscv64_freebsd_lib_go(SB), A1
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MOV A0, 8(X2)
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MOV A1, 16(X2)
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MOV $runtime·newosproc0(SB), T0
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JALR RA, T0
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restore:
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// Restore callee-save registers, along with X1 (LR).
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MOV (8*3)(X2), X1
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MOV (8*4)(X2), X8
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MOV (8*5)(X2), X9
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MOV (8*6)(X2), X18
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MOV (8*7)(X2), X19
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MOV (8*8)(X2), X20
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MOV (8*9)(X2), X21
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MOV (8*10)(X2), X22
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MOV (8*11)(X2), X23
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MOV (8*12)(X2), X24
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MOV (8*13)(X2), X25
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MOV (8*14)(X2), X26
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MOV (8*15)(X2), g
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MOVD (8*16)(X2), F8
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MOVD (8*17)(X2), F9
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MOVD (8*18)(X2), F18
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MOVD (8*19)(X2), F19
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MOVD (8*20)(X2), F20
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MOVD (8*21)(X2), F21
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MOVD (8*22)(X2), F22
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MOVD (8*23)(X2), F23
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MOVD (8*24)(X2), F24
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MOVD (8*25)(X2), F25
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MOVD (8*26)(X2), F26
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MOVD (8*27)(X2), F27
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RET
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TEXT _rt0_riscv64_freebsd_lib_go(SB),NOSPLIT,$0
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MOV _rt0_riscv64_freebsd_lib_argc<>(SB), A0
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MOV _rt0_riscv64_freebsd_lib_argv<>(SB), A1
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MOV $runtime·rt0_go(SB), T0
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JALR ZERO, T0
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DATA _rt0_riscv64_freebsd_lib_argc<>(SB)/8, $0
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GLOBL _rt0_riscv64_freebsd_lib_argc<>(SB),NOPTR, $8
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DATA _rt0_riscv64_freebsd_lib_argv<>(SB)/8, $0
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GLOBL _rt0_riscv64_freebsd_lib_argv<>(SB),NOPTR, $8
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TEXT main(SB),NOSPLIT|NOFRAME,$0
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TEXT main(SB),NOSPLIT|NOFRAME,$0
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MOV $runtime·rt0_go(SB), T0
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MOV $runtime·rt0_go(SB), T0
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@ -11,100 +11,8 @@ TEXT _rt0_riscv64_linux(SB),NOSPLIT|NOFRAME,$0
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// When building with -buildmode=c-shared, this symbol is called when the shared
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// When building with -buildmode=c-shared, this symbol is called when the shared
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// library is loaded.
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// library is loaded.
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TEXT _rt0_riscv64_linux_lib(SB),NOSPLIT,$224
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TEXT _rt0_riscv64_linux_lib(SB),NOSPLIT,$0
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// Preserve callee-save registers, along with X1 (LR).
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JMP _rt0_riscv64_lib(SB)
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MOV X1, (8*3)(X2)
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MOV X8, (8*4)(X2)
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MOV X9, (8*5)(X2)
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MOV X18, (8*6)(X2)
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MOV X19, (8*7)(X2)
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MOV X20, (8*8)(X2)
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MOV X21, (8*9)(X2)
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MOV X22, (8*10)(X2)
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MOV X23, (8*11)(X2)
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MOV X24, (8*12)(X2)
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MOV X25, (8*13)(X2)
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MOV X26, (8*14)(X2)
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MOV g, (8*15)(X2)
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MOVD F8, (8*16)(X2)
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MOVD F9, (8*17)(X2)
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MOVD F18, (8*18)(X2)
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MOVD F19, (8*19)(X2)
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MOVD F20, (8*20)(X2)
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MOVD F21, (8*21)(X2)
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MOVD F22, (8*22)(X2)
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MOVD F23, (8*23)(X2)
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MOVD F24, (8*24)(X2)
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MOVD F25, (8*25)(X2)
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MOVD F26, (8*26)(X2)
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MOVD F27, (8*27)(X2)
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// Initialize g as nil in case of using g later e.g. sigaction in cgo_sigaction.go
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MOV X0, g
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MOV A0, _rt0_riscv64_linux_lib_argc<>(SB)
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MOV A1, _rt0_riscv64_linux_lib_argv<>(SB)
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// Synchronous initialization.
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MOV $runtime·libpreinit(SB), T0
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JALR RA, T0
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// Create a new thread to do the runtime initialization and return.
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MOV _cgo_sys_thread_create(SB), T0
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BEQZ T0, nocgo
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MOV $_rt0_riscv64_linux_lib_go(SB), A0
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MOV $0, A1
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JALR RA, T0
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JMP restore
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nocgo:
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MOV $0x800000, A0 // stacksize = 8192KB
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MOV $_rt0_riscv64_linux_lib_go(SB), A1
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MOV A0, 8(X2)
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MOV A1, 16(X2)
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MOV $runtime·newosproc0(SB), T0
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JALR RA, T0
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restore:
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// Restore callee-save registers, along with X1 (LR).
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MOV (8*3)(X2), X1
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MOV (8*4)(X2), X8
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MOV (8*5)(X2), X9
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MOV (8*6)(X2), X18
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MOV (8*7)(X2), X19
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MOV (8*8)(X2), X20
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MOV (8*9)(X2), X21
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MOV (8*10)(X2), X22
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MOV (8*11)(X2), X23
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MOV (8*12)(X2), X24
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MOV (8*13)(X2), X25
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MOV (8*14)(X2), X26
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MOV (8*15)(X2), g
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MOVD (8*16)(X2), F8
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MOVD (8*17)(X2), F9
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MOVD (8*18)(X2), F18
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MOVD (8*19)(X2), F19
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MOVD (8*20)(X2), F20
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MOVD (8*21)(X2), F21
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MOVD (8*22)(X2), F22
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MOVD (8*23)(X2), F23
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MOVD (8*24)(X2), F24
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MOVD (8*25)(X2), F25
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MOVD (8*26)(X2), F26
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MOVD (8*27)(X2), F27
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RET
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TEXT _rt0_riscv64_linux_lib_go(SB),NOSPLIT,$0
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MOV _rt0_riscv64_linux_lib_argc<>(SB), A0
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MOV _rt0_riscv64_linux_lib_argv<>(SB), A1
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MOV $runtime·rt0_go(SB), T0
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JALR ZERO, T0
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DATA _rt0_riscv64_linux_lib_argc<>(SB)/8, $0
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GLOBL _rt0_riscv64_linux_lib_argc<>(SB),NOPTR, $8
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DATA _rt0_riscv64_linux_lib_argv<>(SB)/8, $0
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GLOBL _rt0_riscv64_linux_lib_argv<>(SB),NOPTR, $8
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TEXT main(SB),NOSPLIT|NOFRAME,$0
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TEXT main(SB),NOSPLIT|NOFRAME,$0
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