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| author | Michael Pratt <mpratt@google.com> | 2024-09-16 15:58:36 -0400 |
|---|---|---|
| committer | Michael Pratt <mpratt@google.com> | 2024-09-17 17:01:20 +0000 |
| commit | 4f881115d4067bda8a236aabcae8c41cdd13b4d0 (patch) | |
| tree | 2249bfaec1950819e5e22184e61e60dcd076ae40 /src/internal/runtime/sys | |
| parent | 41ca2637d4df8b8edf63436c6caab56821d2af38 (diff) | |
| download | go-4f881115d4067bda8a236aabcae8c41cdd13b4d0.tar.xz | |
runtime: move getcallersp to internal/runtime/sys
Moving these intrinsics to a base package enables other internal/runtime
packages to use them.
For #54766.
Change-Id: I45a530422207dd94b5ad4eee51216c9410a84040
Reviewed-on: https://go-review.googlesource.com/c/go/+/613261
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Diffstat (limited to 'src/internal/runtime/sys')
| -rw-r--r-- | src/internal/runtime/sys/intrinsics.go | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/internal/runtime/sys/intrinsics.go b/src/internal/runtime/sys/intrinsics.go index 9607f805c8..8a431d0b36 100644 --- a/src/internal/runtime/sys/intrinsics.go +++ b/src/internal/runtime/sys/intrinsics.go @@ -208,26 +208,28 @@ func Prefetch(addr uintptr) {} func PrefetchStreamed(addr uintptr) {} // GetCallerPC returns the program counter (PC) of its caller's caller. -// getcallersp returns the stack pointer (SP) of its caller's caller. +// GetCallerSP returns the stack pointer (SP) of its caller's caller. // Both are implemented as intrinsics on every platform. // // For example: // // func f(arg1, arg2, arg3 int) { // pc := GetCallerPC() -// sp := getcallersp() +// sp := GetCallerSP() // } // // These two lines find the PC and SP immediately following // the call to f (where f will return). // -// The call to GetCallerPC and getcallersp must be done in the +// The call to GetCallerPC and GetCallerSP must be done in the // frame being asked about. // -// The result of getcallersp is correct at the time of the return, +// The result of GetCallerSP is correct at the time of the return, // but it may be invalidated by any subsequent call to a function // that might relocate the stack in order to grow or shrink it. -// A general rule is that the result of getcallersp should be used +// A general rule is that the result of GetCallerSP should be used // immediately and can only be passed to nosplit functions. func GetCallerPC() uintptr + +func GetCallerSP() uintptr |