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| author | Eric Botcazou <ebotcazou@adacore.com> | 2015-09-17 11:06:57 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2015-09-17 11:06:57 +0000 |
| commit | 4fb94ef9aa797bb3ccd23157aa8fd66ff8e80bc0 (patch) | |
| tree | bd682013d2435ee656e6f825c2b7bede0f1aa2aa /gcc/incpath.c | |
| parent | 2e96ac06b296e3b66440d5e862dd1761e7a6cb39 (diff) | |
| download | gcc-4fb94ef9aa797bb3ccd23157aa8fd66ff8e80bc0.zip gcc-4fb94ef9aa797bb3ccd23157aa8fd66ff8e80bc0.tar.gz gcc-4fb94ef9aa797bb3ccd23157aa8fd66ff8e80bc0.tar.bz2 | |
re PR middle-end/65958 (-fstack-check breaks alloca on architectures using generic stack checking)
PR middle-end/65958
* config/arm/linux-elf.h (STACK_CHECK_STATIC_BUILTIN): Define.
* config/arm/arm-protos.h (output_probe_stack_range): Declare.
* config/arm/arm.c: Include common/common-target.h.
(use_return_insn): Return 0 if the static chain register was saved
above a non-APCS frame.
(arm_compute_static_chain_stack_bytes): Adjust for stack checking.
(struct scratch_reg): New.
(get_scratch_register_on_entry): New function.
(release_scratch_register_on_entry): Likewise.
(arm_emit_probe_stack_range): Likewise.
(output_probe_stack_range): Likewise.
(arm_expand_prologue): Factor out code dealing with the IP register
for nested function and adjust it for stack checking.
Invoke arm_emit_probe_stack_range if static builtin stack checking
is enabled.
(thumb1_expand_prologue): Sorry out if static builtin stack checking
is enabled.
(arm_expand_epilogue): Add the saved static chain register, if any, to
the amount of pre-pushed registers to pop.
(arm_frame_pointer_required): Return true if static stack checking is
enabled and we want to catch the exception with the EABI unwinder.
* config/arm/unspecs.md (UNSPEC_PROBE_STACK): New constant.
(UNSPEC_PROBE_STACK_RANGE): Likewise.
* config/arm/arm.md (probe_stack): New insn.
(probe_stack_range): Likewise.
From-SVN: r227860
Diffstat (limited to 'gcc/incpath.c')
0 files changed, 0 insertions, 0 deletions