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From: Hans-Peter Nilsson <hp@axis.com>
To: <gdb-patches@sourceware.org>
Subject: [PATCH 02/12] sim/testsuite/cris: Assembler testcase for PRIx32 usage
 bug
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Date: Tue, 15 Feb 2022 00:01:13 +0100
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Several C test-cases exposed the bug, but let's have one for
people who test using just the assembler and linker.

	* asm/endmem1.ms: New test.
---
 sim/testsuite/cris/asm/endmem1.ms | 47 +++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 sim/testsuite/cris/asm/endmem1.ms

diff --git a/sim/testsuite/cris/asm/endmem1.ms b/sim/testsuite/cris/asm/endmem1.ms
new file mode 100644
index 000000000000..ff9e334c38a9
--- /dev/null
+++ b/sim/testsuite/cris/asm/endmem1.ms
@@ -0,0 +1,47 @@
+# mach: crisv3 crisv8 crisv10 crisv32
+
+; Check that the simulator and the program agrees on the
+; value of endmem; the base point for further allocations.
+
+ .include "testutils.inc"
+ start
+
+; First, get the end of memory by calling brk with 0 to get
+; the current value.
+ clear.d $r10
+ movu.w 0x2d,$r9
+ break 13
+
+; Get one more 8192-byte page.
+ addu.w 8192,$r10
+
+; Save it in a (call- and) syscall-saved register.
+ move.d $r10,$r0
+
+; Call brk again to raise the value.
+ movu.w 0x2d,$r9
+ break 13
+
+; If the simulator messed up internally, it'd have exited
+; with an error at the brk call.  But, let's sanity-check
+; the return-value: it should be the same as the input and
+; the allocated memory should be accessible.
+ cmp.d $r10,$r0
+ beq 0f
+ nop
+
+1:
+ fail
+
+0:
+; Check that we can write and read the last address on that
+; page.
+ subq 4,$r10
+ move.d 0xbad1d101,$r12
+ move.d $r12,[$r10]
+ move.d [$r10],$r11
+ cmp.d $r11,$r12
+ bne 1b
+ nop
+
+ pass
-- 
2.30.2