diff options
| author | Kazu Hirata <kazu@codesourcery.com> | 2007-05-14 13:52:18 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@codesourcery.com> | 2007-05-14 13:52:18 +0000 |
| commit | 1908d386e28d1b6770ccdc1deb73f155f782ed77 (patch) | |
| tree | cffefaf9bacdbe3a58b51e69c4fd92063f10a19c /gcc/doc | |
| parent | 3a5b16cbae2583329b894f76471fb4973d459132 (diff) | |
gcc/
* config/m68k/m68k-protos.h: Rename m68k_interrupt_function_p
to m68k_get_function_kind. Update its prototype.
* config/m68k/m68k.c (m68k_attribute_table): Add an entry for
interrupt_thread.
(m68k_interrupt_function_p): Return enum m68k_function_type
instead of bool. Rename to m68k_get_function_kind.
(m68k_handle_fndecl_attribute): Reject interrupt_thread if the
target is not fido.
(m68k_compute_frame_layout): Don't mark any register for save
if an interrupt_thread attribute is specified.
(m68k_hard_regno_rename_ok): Update a use of
m68k_interrupt_function_p.
* config/m68k/m68k.h (EPILOGUE_USES): Update a use of
m68k_interrupt_function_p.
(m68k_function_type): New.
* config/m68k/m68k.md (*return): Output a 'sleep' instruction
for a function with an interrupt_thread attribute.
* doc/extend.texi: Document the interrupt_thread attribute.
gcc/testsuite/
* gcc.target/m68k/interrupt_thread-1.c,
gcc.target/m68k/interrupt_thread-2.c,
gcc.target/m68k/interrupt_thread-3.c: New.
* gcc.target/m68k/m68k.exp: Accept fido.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@124713 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/extend.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 574bc127768..4a8f67455cc 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -2047,6 +2047,14 @@ indicate that the specified function is an interrupt handler. The compiler will generate function entry and exit sequences suitable for use in an interrupt handler when this attribute is present. +@item interrupt_thread +@cindex interrupt thread functions on fido +Use this attribute on fido, a subarchitecture of the m68k, to indicate +that the specified function is an interrupt handler that is designed +to run as a thread. The compiler omits generate prologue/epilogue +sequences and replaces the return instruction with a @code{sleep} +instruction. This attribute is available only on fido. + @item kspisusp @cindex User stack pointer in interrupts on the Blackfin When used together with @code{interrupt_handler}, @code{exception_handler} |