qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-18 02:54:47 -07:00
Code Releases Activity

Add Gobuf.r0 that stores arg0 or return value of

Browse Source 
goroutine. arm only.

R=rsc
APPROVED=rsc
DELTA=5  (3 added, 2 deleted, 0 changed)
OCL=30644
CL=30746
This commit is contained in:
Kai Backman 2009-06-25 11:26:10 -07:00
parent 190b5c9ad2
commit 111005d32b
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/pkg/runtime/arm/asm.s
View File

@ -111,7 +111,6 @@ TEXT gogo(SB), 7, $0
// void gogocall(Gobuf*, void (*fn)(void))
// restore state from Gobuf but then call fn.
// (call fn, returning to state in Gobuf)
// TODO(kaib): add R0 to gobuf so it can be restored properly
// using frame size $-4 means do not save LR on stack.
TEXT gogocall(SB), 7, $-4
MOVW 8(SP), R1 // fn
@ -119,6 +118,7 @@ TEXT gogocall(SB), 7, $-4
MOVW 0(g), R2 // make sure g != nil
MOVW gobuf_sp(R0), SP // restore SP
MOVW gobuf_pc(R0), LR
MOVW gobuf_r0(R0), R0
MOVW R1, PC
/*
@ -146,6 +146,7 @@ TEXT sys·morestack(SB),7,$-4
MOVW R3, (m_morebuf+gobuf_pc)(m) // f's caller's PC
MOVW SP, (m_morebuf+gobuf_sp)(m) // f's caller's SP
MOVW g, (m_morebuf+gobuf_g)(m)
MOVW R0, (m_morebuf+gobuf_r0)(m)
// Set m->morepc to f's PC.
MOVW LR, m_morepc(m)
@ -172,7 +173,6 @@ TEXT sys·lessstack(SB), 7, $-4
// R3 is LR for f (f's caller's PC)
// using frame size $-4 means do not save LR on stack.
TEXT sys·morestackx(SB), 7, $-4
MOVW R0, 0(FP) // Save arg0
MOVW $0, R1 // set frame size
B sys·morestack(SB)

1
src/pkg/runtime/runtime.h
View File

@ -138,6 +138,7 @@ struct Gobuf
byte* sp;
byte* pc;
G* g;
uintptr r0; // used on arm
};
struct G
{