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| author | Hans-Peter Nilsson <hp@axis.com> | 2012-05-29 01:52:16 +0000 |
|---|---|---|
| committer | Hans-Peter Nilsson <hp@gcc.gnu.org> | 2012-05-29 01:52:16 +0000 |
| commit | 64f5af47c50af743fb0a58d5b074ee17d1101b22 (patch) | |
| tree | 6ce9e351e597449ed071c69bd35e2445dd0f9f3c /gcc/config/cris | |
| parent | 3d383eb787203c8a40865c8b18533da419f239f4 (diff) | |
| download | gcc-64f5af47c50af743fb0a58d5b074ee17d1101b22.zip gcc-64f5af47c50af743fb0a58d5b074ee17d1101b22.tar.gz gcc-64f5af47c50af743fb0a58d5b074ee17d1101b22.tar.bz2 | |
cris.h (TARGET_HAS_BREAK, [...]): New macros.
* config/cris/cris.h (TARGET_HAS_BREAK, TARGET_TRAP_USING_BREAK8):
New macros.
* config/cris/cris.md ("trap"): Define, enabled for
TARGET_TRAP_USING_BREAK8.
* config/cris/cris.opt (mtrap-using-break8): New option.
From-SVN: r187942
Diffstat (limited to 'gcc/config/cris')
| -rw-r--r-- | gcc/config/cris/cris.h | 5 | ||||
| -rw-r--r-- | gcc/config/cris/cris.md | 8 | ||||
| -rw-r--r-- | gcc/config/cris/cris.opt | 4 |
3 files changed, 17 insertions, 0 deletions
diff --git a/gcc/config/cris/cris.h b/gcc/config/cris/cris.h index ff0be00..edb5f97 100644 --- a/gcc/config/cris/cris.h +++ b/gcc/config/cris/cris.h @@ -302,9 +302,14 @@ extern int cris_cpu_version; #define TARGET_HAS_MUL_INSNS (cris_cpu_version >= CRIS_CPU_NG) #define TARGET_HAS_LZ (cris_cpu_version >= CRIS_CPU_ETRAX4) +#define TARGET_HAS_BREAK (cris_cpu_version >= CRIS_CPU_ETRAX4) #define TARGET_HAS_SWAP (cris_cpu_version >= CRIS_CPU_SVINTO) #define TARGET_V32 (cris_cpu_version >= CRIS_CPU_V32) +/* The "break" instruction was introduced with ETRAX 4. */ +#define TARGET_TRAP_USING_BREAK8 \ + (cris_trap_using_break8 == 2 ? TARGET_HAS_BREAK : cris_trap_using_break8) + /* Node: Storage Layout */ #define BITS_BIG_ENDIAN 0 diff --git a/gcc/config/cris/cris.md b/gcc/config/cris/cris.md index b4ead76..49f36e3 100644 --- a/gcc/config/cris/cris.md +++ b/gcc/config/cris/cris.md @@ -3825,6 +3825,14 @@ "" "nop" [(set_attr "cc" "none")]) + +;; Same as the gdb trap breakpoint, will cause a SIGTRAP for +;; cris-linux* and crisv32-linux*, as intended. Will work in +;; freestanding environments with sufficient framework. +(define_insn "trap" + [(trap_if (const_int 1) (const_int 8))] + "TARGET_TRAP_USING_BREAK8" + "break 8") ;; We need to stop accesses to the stack after the memory is ;; deallocated. Unfortunately, reorg doesn't look at naked clobbers, diff --git a/gcc/config/cris/cris.opt b/gcc/config/cris/cris.opt index dc4ab57..3c2e338 100644 --- a/gcc/config/cris/cris.opt +++ b/gcc/config/cris/cris.opt @@ -175,6 +175,10 @@ Target Report RejectNegative Joined Var(cris_max_stackframe_str) max-stackframe= Target Report RejectNegative Joined Undocumented Var(cris_max_stackframe_str) +mtrap-using-break8 +Target Report Var(cris_trap_using_break8) Init(2) +Emit traps as \"break 8\", default for CRIS v3 and up. If disabled, calls to abort() are used. + ; TARGET_SVINTO: Currently this just affects alignment. FIXME: ; Redundant with TARGET_ALIGN_BY_32, or put machine stuff here? ; This and the others below could just as well be variables and |