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| author | Lin Runze <lrzlin@163.com> | 2024-10-15 15:18:08 +0800 |
|---|---|---|
| committer | Cherry Mui <cherryyz@google.com> | 2024-10-25 13:46:59 +0000 |
| commit | b45c7f1661a88d6765e2a5e1eaff4c06c5af33ed (patch) | |
| tree | a9dc4866b8d3a27734072cf5eaf552d53fd4fbb6 /src/cmd/internal/obj | |
| parent | e5e552b816793f2b5729744c27995cce12baf52e (diff) | |
| download | go-b45c7f1661a88d6765e2a5e1eaff4c06c5af33ed.tar.xz | |
cmd/internal/obj: add prologue_end DWARF stmt for riscv64
This patch adds prologue_end statement to the DWARF info for riscv64,
which delve debugger uses for skip stacksplit prologue.
Change-Id: I4e5d9c26202385f65b3118b16f53f66de9d327f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/620295
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/cmd/internal/obj')
| -rw-r--r-- | src/cmd/internal/obj/riscv/obj.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/cmd/internal/obj/riscv/obj.go b/src/cmd/internal/obj/riscv/obj.go index f6049f79fd..efb27ecba8 100644 --- a/src/cmd/internal/obj/riscv/obj.go +++ b/src/cmd/internal/obj/riscv/obj.go @@ -23,6 +23,7 @@ package riscv import ( "cmd/internal/obj" "cmd/internal/objabi" + "cmd/internal/src" "cmd/internal/sys" "fmt" "internal/abi" @@ -427,18 +428,23 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) { prologue = stacksplit(ctxt, prologue, cursym, newprog, stacksize) // emit split check } + q := prologue + if stacksize != 0 { prologue = ctxt.StartUnsafePoint(prologue, newprog) // Actually save LR. prologue = obj.Appendp(prologue, newprog) prologue.As = AMOV + prologue.Pos = q.Pos prologue.From = obj.Addr{Type: obj.TYPE_REG, Reg: REG_LR} prologue.To = obj.Addr{Type: obj.TYPE_MEM, Reg: REG_SP, Offset: -stacksize} // Insert stack adjustment. prologue = obj.Appendp(prologue, newprog) prologue.As = AADDI + prologue.Pos = q.Pos + prologue.Pos = prologue.Pos.WithXlogue(src.PosPrologueEnd) prologue.From = obj.Addr{Type: obj.TYPE_CONST, Offset: -stacksize} prologue.Reg = REG_SP prologue.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_SP} |