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| author | Andreas Krebbel <krebbel@linux.ibm.com> | 2020-05-14 08:16:27 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.ibm.com> | 2020-05-14 08:16:27 +0200 |
| commit | d3e5bae174d9d2ed115a364d5b404d179458a622 (patch) | |
| tree | 4bd42f68a9f4e25b5474abec76d2051be6f10613 /gcc/explow.c | |
| parent | f806a768e1400ec1115c3a52b1e207bb71b4ad45 (diff) | |
| download | gcc-d3e5bae174d9d2ed115a364d5b404d179458a622.zip gcc-d3e5bae174d9d2ed115a364d5b404d179458a622.tar.gz gcc-d3e5bae174d9d2ed115a364d5b404d179458a622.tar.bz2 | |
Make anti_adjust_stack_and_probe_stack_clash extern and use it for Z
When compiling with -mbackchain -fstack-clash-protection currently no
probes are emitted. This patch adjusts the "allocate_stack" expander
to call anti_adjust_stack_and_probe_stack_clash when needed. In order
to do this I had to export that function from explow.c.
Ok for mainline?
gcc/ChangeLog:
2020-05-14 Andreas Krebbel <krebbel@linux.ibm.com>
* config/s390/s390.md ("allocate_stack"): Call
anti_adjust_stack_and_probe_stack_clash when stack clash
protection is enabled.
* explow.c (anti_adjust_stack_and_probe_stack_clash): Remove
prototype. Remove static.
* explow.h (anti_adjust_stack_and_probe_stack_clash): Add
prototype.
gcc/testsuite/ChangeLog:
2020-05-14 Andreas Krebbel <krebbel@linux.ibm.com>
* gcc.target/s390/stack-clash-3.c: New test.
Diffstat (limited to 'gcc/explow.c')
| -rw-r--r-- | gcc/explow.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/explow.c b/gcc/explow.c index b838f03..15c9cfb 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -43,7 +43,6 @@ along with GCC; see the file COPYING3. If not see #include "output.h" static rtx break_out_memory_refs (rtx); -static void anti_adjust_stack_and_probe_stack_clash (rtx); /* Truncate and perhaps sign-extend C as appropriate for MODE. */ @@ -1948,7 +1947,7 @@ emit_stack_clash_protection_probe_loop_end (rtx loop_lab, rtx end_loop, allocate/probe beyond that because this probing style does not guarantee signal handling capability if the guard is hit. */ -static void +void anti_adjust_stack_and_probe_stack_clash (rtx size) { /* First ensure SIZE is Pmode. */ |