Committed to trunk. Dave ---
Suppress -fstack-protector warning on hppa.
Some package builds enable -fstack-protector and -Werror. Since
-fstack-protector is not supported on hppa because the stack grows
up, these packages must check for the warning generated by
-fstack-protector and suppress it on hppa. This is problematic
since hppa is the only significant architecture where the stack
grows up.
2022-12-16 John David Anglin <dang...@gcc.gnu.org>
gcc/ChangeLog:
* config/pa/pa.cc (pa_option_override): Disable -fstack-protector.
gcc/testsuite/ChangeLog:
* lib/target-supports.exp (check_effective_target_static): Return 0
on hppa*-*-*.
diff --git a/gcc/config/pa/pa.cc b/gcc/config/pa/pa.cc
index 54ab486a02d..9f43802075f 100644
--- a/gcc/config/pa/pa.cc
+++ b/gcc/config/pa/pa.cc
@@ -567,6 +567,9 @@ pa_option_override (void)
flag_reorder_blocks = 1;
}
+ /* Disable -fstack-protector to suppress warning. */
+ flag_stack_protect = 0;
+
/* We can't guarantee that .dword is available for 32-bit targets. */
if (UNITS_PER_WORD == 4)
targetm.asm_out.aligned_op.di = NULL;
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index 2a058c67c53..0ed20bf9e45 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -1214,6 +1214,9 @@ proc check_effective_target_static {} {
# Return 1 if the target supports -fstack-protector
proc check_effective_target_fstack_protector {} {
+ if { [istarget hppa*-*-*] } {
+ return 0;
+ }
return [check_runtime fstack_protector {
#include <string.h>
int main (int argc, char *argv[]) {
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