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runtime, runtime/cgo: save callee-saved FP registers on arm64

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For #14876.

Change-Id: I0992859264cbaf9c9b691fad53345bbb01b4cf3b
Reviewed-on: https://go-review.googlesource.com/21085
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Shenghou Ma 2016-03-24 19:35:10 -04:00 committed by Minux Ma
parent 71916437fb
commit a7f7a9cca7
3 changed files with 52 additions and 4 deletions
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20
src/runtime/cgo/asm_arm64.s
View File

@ -16,7 +16,7 @@ TEXT crosscall2(SB),NOSPLIT,$-8
* first arg. * first arg.
* TODO(minux): use LDP/STP here if it matters. * TODO(minux): use LDP/STP here if it matters.
*/ */
SUB $128, RSP SUB $(8*24), RSP
MOVD R1, (8*1)(RSP) MOVD R1, (8*1)(RSP)
MOVD R2, (8*2)(RSP) MOVD R2, (8*2)(RSP)
MOVD R19, (8*3)(RSP) MOVD R19, (8*3)(RSP)
@ -31,6 +31,14 @@ TEXT crosscall2(SB),NOSPLIT,$-8
MOVD g, (8*12)(RSP) MOVD g, (8*12)(RSP)
MOVD R29, (8*13)(RSP) MOVD R29, (8*13)(RSP)
MOVD R30, (8*14)(RSP) MOVD R30, (8*14)(RSP)
FMOVD F8, (8*15)(RSP)
FMOVD F9, (8*16)(RSP)
FMOVD F10, (8*17)(RSP)
FMOVD F11, (8*18)(RSP)
FMOVD F12, (8*19)(RSP)
FMOVD F13, (8*20)(RSP)
FMOVD F14, (8*21)(RSP)
FMOVD F15, (8*22)(RSP)
MOVD R0, R19 MOVD R0, R19
@ -53,5 +61,13 @@ TEXT crosscall2(SB),NOSPLIT,$-8
MOVD (8*12)(RSP), g MOVD (8*12)(RSP), g
MOVD (8*13)(RSP), R29 MOVD (8*13)(RSP), R29
MOVD (8*14)(RSP), R30 MOVD (8*14)(RSP), R30
ADD $128, RSP FMOVD (8*15)(RSP), F8
FMOVD (8*16)(RSP), F9
FMOVD (8*17)(RSP), F10
FMOVD (8*18)(RSP), F11
FMOVD (8*19)(RSP), F12
FMOVD (8*20)(RSP), F13
FMOVD (8*21)(RSP), F14
FMOVD (8*22)(RSP), F15
ADD $(8*24), RSP
RET RET

18
src/runtime/rt0_darwin_arm64.s
View File

@ -16,7 +16,7 @@ TEXT _rt0_arm64_darwin(SB),NOSPLIT,$-8
// //
// Note that all currently shipping darwin/arm64 platforms require // Note that all currently shipping darwin/arm64 platforms require
// cgo and do not support c-shared. // cgo and do not support c-shared.
TEXT _rt0_arm64_darwin_lib(SB),NOSPLIT,$88 TEXT _rt0_arm64_darwin_lib(SB),NOSPLIT,$168
// Preserve callee-save registers. // Preserve callee-save registers.
MOVD R19, 24(RSP) MOVD R19, 24(RSP)
MOVD R20, 32(RSP) MOVD R20, 32(RSP)
@ -27,6 +27,14 @@ TEXT _rt0_arm64_darwin_lib(SB),NOSPLIT,$88
MOVD R25, 72(RSP) MOVD R25, 72(RSP)
MOVD R26, 80(RSP) MOVD R26, 80(RSP)
MOVD R27, 88(RSP) MOVD R27, 88(RSP)
FMOVD F8, 96(RSP)
FMOVD F9, 104(RSP)
FMOVD F10, 112(RSP)
FMOVD F11, 120(RSP)
FMOVD F12, 128(RSP)
FMOVD F13, 136(RSP)
FMOVD F14, 144(RSP)
FMOVD F15, 152(RSP)
MOVD R0, _rt0_arm64_darwin_lib_argc<>(SB) MOVD R0, _rt0_arm64_darwin_lib_argc<>(SB)
MOVD R1, _rt0_arm64_darwin_lib_argv<>(SB) MOVD R1, _rt0_arm64_darwin_lib_argv<>(SB)
@ -51,6 +59,14 @@ TEXT _rt0_arm64_darwin_lib(SB),NOSPLIT,$88
MOVD 72(RSP), R25 MOVD 72(RSP), R25
MOVD 80(RSP), R26 MOVD 80(RSP), R26
MOVD 88(RSP), R27 MOVD 88(RSP), R27
FMOVD 96(RSP), F8
FMOVD 104(RSP), F9
FMOVD 112(RSP), F10
FMOVD 120(RSP), F11
FMOVD 128(RSP), F12
FMOVD 136(RSP), F13
FMOVD 144(RSP), F14
FMOVD 152(RSP), F15
RET RET
TEXT _rt0_arm64_darwin_lib_go(SB),NOSPLIT,$0 TEXT _rt0_arm64_darwin_lib_go(SB),NOSPLIT,$0

18
src/runtime/rt0_linux_arm64.s
View File

@ -11,7 +11,7 @@ TEXT _rt0_arm64_linux(SB),NOSPLIT,$-8
// When building with -buildmode=c-shared, this symbol is called when the shared // When building with -buildmode=c-shared, this symbol is called when the shared
// library is loaded. // library is loaded.
TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$88 TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$168
// Preserve callee-save registers. // Preserve callee-save registers.
MOVD R19, 24(RSP) MOVD R19, 24(RSP)
MOVD R20, 32(RSP) MOVD R20, 32(RSP)
@ -22,6 +22,14 @@ TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$88
MOVD R25, 72(RSP) MOVD R25, 72(RSP)
MOVD R26, 80(RSP) MOVD R26, 80(RSP)
MOVD R27, 88(RSP) MOVD R27, 88(RSP)
FMOVD F8, 96(RSP)
FMOVD F9, 104(RSP)
FMOVD F10, 112(RSP)
FMOVD F11, 120(RSP)
FMOVD F12, 128(RSP)
FMOVD F13, 136(RSP)
FMOVD F14, 144(RSP)
FMOVD F15, 152(RSP)
MOVD R0, _rt0_arm64_linux_lib_argc<>(SB) MOVD R0, _rt0_arm64_linux_lib_argc<>(SB)
MOVD R1, _rt0_arm64_linux_lib_argv<>(SB) MOVD R1, _rt0_arm64_linux_lib_argv<>(SB)
@ -58,6 +66,14 @@ restore:
MOVD 72(RSP), R25 MOVD 72(RSP), R25
MOVD 80(RSP), R26 MOVD 80(RSP), R26
MOVD 88(RSP), R27 MOVD 88(RSP), R27
FMOVD 96(RSP), F8
FMOVD 104(RSP), F9
FMOVD 112(RSP), F10
FMOVD 120(RSP), F11
FMOVD 128(RSP), F12
FMOVD 136(RSP), F13
FMOVD 144(RSP), F14
FMOVD 152(RSP), F15
RET RET
TEXT _rt0_arm64_linux_lib_go(SB),NOSPLIT,$0 TEXT _rt0_arm64_linux_lib_go(SB),NOSPLIT,$0