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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-01-16 22:38:33 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-01-16 22:38:33 +0000 |
| commit | a6804ea9293fc10c85568c475ecdb402106fce8c (patch) | |
| tree | 1a1cf662c1c95e2cf4823bb2d6923c78490ecf9d /libgo/go/syscall/mksyscall.awk | |
| parent | 07e1534f44b26a1acb0b3393aae7d1a4a90fa942 (diff) | |
| download | gcc-a6804ea9293fc10c85568c475ecdb402106fce8c.zip gcc-a6804ea9293fc10c85568c475ecdb402106fce8c.tar.gz gcc-a6804ea9293fc10c85568c475ecdb402106fce8c.tar.bz2 | |
syscall: mark C syscall functions noescape
Many C syscall functions take pointer arguments. The pointers
don't escape in the C functions. Mark the C functions noescape so
calling them doesn't need allocation.
Reviewed-on: https://go-review.googlesource.com/c/158158
From-SVN: r267989
Diffstat (limited to 'libgo/go/syscall/mksyscall.awk')
| -rw-r--r-- | libgo/go/syscall/mksyscall.awk | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libgo/go/syscall/mksyscall.awk b/libgo/go/syscall/mksyscall.awk index 6fbd2ac..50802d9 100644 --- a/libgo/go/syscall/mksyscall.awk +++ b/libgo/go/syscall/mksyscall.awk @@ -98,6 +98,7 @@ BEGIN { printf("// Automatically generated wrapper for %s/%s\n", gofnname, cfnname) if (!(cfnname in cfns)) { cfns[cfnname] = 1 + printf("//go:noescape\n") printf("//extern %s\n", cfnname) printf("func c_%s(%s) %s\n", cfnname, cfnparams, cfnresult) } |