[PATCH V3 08/11] bpf: make target-supports.exp aware of eBPF

["Jose E. Marchesi" <jose dot marchesi at oracle dot com>]

This patch makes the several effective target checks in
target-supports.exp to be aware of eBPF targets.

gcc/testsuite/ChangeLog:

	* lib/target-supports.exp
        (check_effective_target_trampolines): Adapt to eBPF.
	(check_effective_target_stack_size): Likewise.
	(dg-effective-target-value): Likewise.
	(check_effective_target_indirect_jumps): Likewise.
	(check_effective_target_nonlocal_goto): Likewise.
	(check_effective_target_global_constructor): Likewise.
	(check_effective_target_return_address): Likewise.
---
 gcc/testsuite/ChangeLog               |  9 +++++++++
 gcc/testsuite/lib/target-supports.exp | 18 +++++++++++-------
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index f457a46a02b..ce08a2f8421 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -526,7 +526,8 @@ proc check_effective_target_trampolines { } {
 	 || [istarget nvptx-*-*]
 	 || [istarget hppa2.0w-hp-hpux11.23]
 	 || [istarget hppa64-hp-hpux11.23]
-	 || [istarget pru-*-*] } {
+	 || [istarget pru-*-*]
+	 || [istarget bpf-*-*] } {
 	return 0;
     }
     return 1
@@ -781,7 +782,7 @@ proc add_options_for_tls { flags } {
 # Return 1 if indirect jumps are supported, 0 otherwise.
 
 proc check_effective_target_indirect_jumps {} {
-    if { [istarget nvptx-*-*] } {
+    if { [istarget nvptx-*-*] || [istarget bpf-*-*] } {
 	return 0
     }
     return 1
@@ -790,7 +791,7 @@ proc check_effective_target_indirect_jumps {} {
 # Return 1 if nonlocal goto is supported, 0 otherwise.
 
 proc check_effective_target_nonlocal_goto {} {
-    if { [istarget nvptx-*-*] } {
+    if { [istarget nvptx-*-*] || [istarget bpf-*-*] } {
 	return 0
     }
     return 1
@@ -799,10 +800,9 @@ proc check_effective_target_nonlocal_goto {} {
 # Return 1 if global constructors are supported, 0 otherwise.
 
 proc check_effective_target_global_constructor {} {
-    if { [istarget nvptx-*-*] } {
-	return 0
-    }
-    if { [istarget amdgcn-*-*] } {
+    if { [istarget nvptx-*-*]
+	 || [istarget amdgcn-*-*]
+	 || [istarget bpf-*-*] } {
 	return 0
     }
     return 1
@@ -825,6 +825,10 @@ proc check_effective_target_return_address {} {
     if { [istarget nvptx-*-*] } {
 	return 0
     }
+    # No notion of return address in eBPF.
+    if { [istarget bpf-*-*] } {
+	return 0
+    }
     # It could be supported on amdgcn, but isn't yet.
     if { [istarget amdgcn*-*-*] } {
 	return 0
-- 
2.11.0