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sparc: Add support for Go closures

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This commit is contained in:
Richard Henderson
2014-11-12 09:36:11 +01:00
parent ad89c2d9e9
commit 92022496ef
5 changed files with 133 additions and 29 deletions
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src/sparc/v9.S
+28 -5
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@@ -94,8 +94,9 @@ C(ffi_call_v9):
ldx [%sp+STACK_BIAS+128+16], %o2
ldx [%sp+STACK_BIAS+128+24], %o3
ldx [%sp+STACK_BIAS+128+32], %o4
ldx [%sp+STACK_BIAS+128+40], %o5
call %i1
ldx [%sp+STACK_BIAS+128+40], %o5
mov %i5, %g5 ! load static chain
0: call 1f ! load pc in %o7
and %l0, SPARC_FLAG_RET_MASK, %l1
@@ -210,6 +211,25 @@ E SPARC_RET_F_1
Receives the closure argument in %g1. */
.align 8
.globl C(ffi_go_closure_v9)
.type C(ffi_go_closure_v9),@function
FFI_HIDDEN(C(ffi_go_closure_v9))
C(ffi_go_closure_v9):
cfi_startproc
save %sp, -STACKFRAME, %sp
cfi_def_cfa_register(%fp)
cfi_window_save
ldx [%g5+8], %o0
ldx [%g5+16], %o1
b 0f
mov %g5, %o2
cfi_endproc
.size C(ffi_go_closure_v9), . - C(ffi_go_closure_v9)
.align 8
.globl C(ffi_closure_v9)
.type C(ffi_closure_v9),@function
@@ -221,6 +241,10 @@ C(ffi_closure_v9):
cfi_def_cfa_register(%fp)
cfi_window_save
ldx [%g1+FFI_TRAMPOLINE_SIZE], %o0
ldx [%g1+FFI_TRAMPOLINE_SIZE+8], %o1
ldx [%g1+FFI_TRAMPOLINE_SIZE+16], %o2
0:
! Store all of the potential argument registers in va_list format.
stx %i0, [FP+128+0]
stx %i1, [FP+128+8]
@@ -248,11 +272,10 @@ C(ffi_closure_v9):
std %f30, [FP-8]
! Call ffi_closure_sparc_inner to do the bulk of the work.
mov %g1, %o0
add %fp, STACK_BIAS-160, %o1
add %fp, STACK_BIAS+128, %o2
add %fp, STACK_BIAS-160, %o3
add %fp, STACK_BIAS+128, %o4
call C(ffi_closure_sparc_inner_v9)
add %fp, STACK_BIAS-128, %o3
add %fp, STACK_BIAS-128, %o5
0: call 1f ! load pc in %o7
and %o0, SPARC_FLAG_RET_MASK, %o0