diff options
| author | Michael Stapelberg <stapelberg@debian.org> | 2013-03-04 21:27:43 +0100 |
|---|---|---|
| committer | Michael Stapelberg <michael@stapelberg.de> | 2013-03-04 21:27:43 +0100 |
| commit | ad47422646a18ffcb47cec916ef7393c923f2e76 (patch) | |
| tree | 7c7861fb3d9539d61c1dcfd5b8dadee974c25760 /src/pkg/runtime/cgo/gcc_arm.S | |
| parent | 2c8d5d584a79781ca41bb6f4b396893fbbac5b97 (diff) | |
| parent | 04b08da9af0c450d645ab7389d1467308cfc2db8 (diff) | |
| download | golang-ad47422646a18ffcb47cec916ef7393c923f2e76.tar.gz | |
Merge tag 'upstream/1.1_hg20130304' into debian-sid
Upstream version 1.1~hg20130304
Diffstat (limited to 'src/pkg/runtime/cgo/gcc_arm.S')
| -rw-r--r-- | src/pkg/runtime/cgo/gcc_arm.S | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/src/pkg/runtime/cgo/gcc_arm.S b/src/pkg/runtime/cgo/gcc_arm.S index 32d862984..809fcb9a0 100644 --- a/src/pkg/runtime/cgo/gcc_arm.S +++ b/src/pkg/runtime/cgo/gcc_arm.S @@ -1 +1,36 @@ -/* unimplemented */ +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +/* + * Apple still insists on underscore prefixes for C function names. + */ +#if defined(__APPLE__) +#define EXT(s) _##s +#else +#define EXT(s) s +#endif + +/* + * void crosscall_arm2(void (*fn)(void), void *g, void *m) + * + * Calling into the 5c tool chain, where all registers are caller save. + * Called from standard ARM EABI, where r4-r11 are callee-save, so they + * must be saved explicitly. + */ +.globl EXT(crosscall_arm2) +EXT(crosscall_arm2): + push {r4, r5, r6, r7, r8, r9, r10, r11, ip, lr} + mov r10, r1 // g + mov r9, r2 // m + mov r3, r0 // save r0, cgo_tls_set_gm will clobber it + bl EXT(x_cgo_save_gm) // save current g and m into TLS variable + mov lr, pc + mov pc, r3 + pop {r4, r5, r6, r7, r8, r9, r10, r11, ip, pc} + +.globl EXT(__stack_chk_fail_local) +EXT(__stack_chk_fail_local): +1: + b 1b + |