7a9389330e
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/* go-defer.c -- manage the defer stack.
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Copyright 2009 The Go Authors. All rights reserved.
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file. */
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#include <stddef.h>
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#include "go-alloc.h"
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#include "go-panic.h"
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#include "go-defer.h"
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/* This function is called each time we need to defer a call. */
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void
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__go_defer (void *frame, void (*pfn) (void *), void *arg)
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{
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struct __go_defer_stack *n;
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if (__go_panic_defer == NULL)
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__go_panic_defer = ((struct __go_panic_defer_struct *)
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__go_alloc (sizeof (struct __go_panic_defer_struct)));
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n = (struct __go_defer_stack *) __go_alloc (sizeof (struct __go_defer_stack));
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n->__next = __go_panic_defer->__defer;
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n->__frame = frame;
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n->__panic = __go_panic_defer->__panic;
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n->__pfn = pfn;
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n->__arg = arg;
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n->__retaddr = NULL;
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__go_panic_defer->__defer = n;
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}
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/* This function is called when we want to undefer the stack. */
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void
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__go_undefer (void *frame)
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{
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if (__go_panic_defer == NULL)
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return;
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while (__go_panic_defer->__defer != NULL
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&& __go_panic_defer->__defer->__frame == frame)
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{
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struct __go_defer_stack *d;
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void (*pfn) (void *);
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d = __go_panic_defer->__defer;
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pfn = d->__pfn;
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d->__pfn = NULL;
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if (pfn != NULL)
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(*pfn) (d->__arg);
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__go_panic_defer->__defer = d->__next;
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__go_free (d);
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}
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}
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/* This function is called to record the address to which the deferred
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function returns. This may in turn be checked by __go_can_recover.
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The frontend relies on this function returning false. */
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_Bool
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__go_set_defer_retaddr (void *retaddr)
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{
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if (__go_panic_defer != NULL && __go_panic_defer->__defer != NULL)
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__go_panic_defer->__defer->__retaddr = retaddr;
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return 0;
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}
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