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| author | Josh Bleecher Snyder <josharian@gmail.com> | 2021-10-01 16:19:27 -0700 |
|---|---|---|
| committer | Josh Bleecher Snyder <josharian@gmail.com> | 2021-10-04 22:27:40 +0000 |
| commit | 752cc07c77767d28a61525daa359d087b035f5c1 (patch) | |
| tree | 8e5464f282b8eef1e46c1c36b57483d32bd237db /src/runtime | |
| parent | 7ee4c1665477c6cf574cb9128deaf9d00906c69f (diff) | |
| download | go-752cc07c77767d28a61525daa359d087b035f5c1.tar.xz | |
cmd, runtime: mark assembly routines in FuncFlags
There's no good way to ascertain at runtime whether
a function was implemented in assembly.
The existing workaround doesn't play nicely
with some upcoming linker changes.
This change introduces an explicit marker for routines
implemented in assembly.
This change doesn't use the new bit anywhere,
it only introduces it.
Change-Id: I4051dc0afc15b260724a04b9d18aeeb94911bb29
Reviewed-on: https://go-review.googlesource.com/c/go/+/353671
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/runtime')
| -rw-r--r-- | src/runtime/symtab.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/runtime/symtab.go b/src/runtime/symtab.go index d1fe1a4fcc..14591602a3 100644 --- a/src/runtime/symtab.go +++ b/src/runtime/symtab.go @@ -383,6 +383,9 @@ const ( // to be an incomplete unwinding of the stack. In certain contexts // (in particular garbage collector stack scans) that is a fatal error. funcFlag_SPWRITE + + // ASM indicates that a function was implemented in assembly. + funcFlag_ASM ) // pcHeader holds data used by the pclntab lookups. |