On Jun 21, 2022, Richard Sandiford <richard.sandif...@arm.com> wrote:
> Could we instead have a new target selector for whether the memory
> map includes xGB of RAM?
How about this? Testing on aarch64-rtems6.0. Ok to install?
aarch64: testsuite: symbol-range fallback to compile
From: Alexandre Oliva <ol...@adacore.com>
On some of our embedded aarch64 targets, RAM size is too small for
this test to fit. It doesn't look like this test requires linking,
and if it does, the -tiny version may presumably get most of the
coverage without going overboard in target system requirements.
Still, linking may be useful, so introduce a TwoPlusGigs effective
target, that checks for the ability to link a program with 2GB of
sbss, and use that to select whether to link or just compile
symbol-range.c.
for gcc/testsuite/ChangeLog
* lib/target-supports.exp
(check_effective_target_TwoPlusGigs): New.
* gcc.target/aarch64/symbol-range.c: Link only on
TwoPlusGigs targets, compile otherwise.
---
gcc/testsuite/gcc.target/aarch64/symbol-range.c | 3 ++-
gcc/testsuite/lib/target-supports.exp | 9 +++++++++
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/gcc/testsuite/gcc.target/aarch64/symbol-range.c
b/gcc/testsuite/gcc.target/aarch64/symbol-range.c
index d8e82fa1b2829..f9a916c7ae2f0 100644
--- a/gcc/testsuite/gcc.target/aarch64/symbol-range.c
+++ b/gcc/testsuite/gcc.target/aarch64/symbol-range.c
@@ -1,4 +1,5 @@
-/* { dg-do link } */
+/* { dg-do link { target TwoPlusGigs } } */
+/* { dg-do compile { target { ! TwoPlusGigs } } } */
/* { dg-options "-O3 -save-temps -mcmodel=small" } */
char fixed_regs[0x80000000];
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index d1f4eb7641fa7..0507d6e617fef 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2906,6 +2906,15 @@ proc check_effective_target_le { } {
}]
}
+# Return 1 if we can link a program with 2+GB of data.
+
+proc check_effective_target_TwoPlusGigs { } {
+ return [check_no_compiler_messages TwoPlusGigs executable {
+ int dummy[0x80000000];
+ int main () { return 0; }
+ }]
+}
+
# Return 1 if we're generating 32-bit code using default options, 0
# otherwise.
--
Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/
Free Software Activist GNU Toolchain Engineer
Disinformation flourishes because many people care deeply about injustice
but very few check the facts. Ask me about <https://stallmansupport.org>
