On 2/24/26 7:52 AM, Florian Hofhammer wrote:
The test executes a non-existent syscall, which the syscall plugin
intercepts and redirects to a clean exit.
Due to architecture-specific quirks, the architecture-specific Makefiles
require setting specific compiler and linker flags in some cases.

Signed-off-by: Florian Hofhammer <[email protected]>
---
  tests/tcg/arm/Makefile.target                 |  6 +++++
  tests/tcg/hexagon/Makefile.target             |  7 +++++
  tests/tcg/mips/Makefile.target                |  6 ++++-
  tests/tcg/mips64/Makefile.target              | 15 +++++++++++
  tests/tcg/mips64el/Makefile.target            | 15 +++++++++++
  tests/tcg/mipsel/Makefile.target              | 15 +++++++++++
  tests/tcg/multiarch/Makefile.target           | 22 ++++++++++++++--
  .../{ => plugin}/check-plugin-output.sh       |  0
  .../{ => plugin}/test-plugin-mem-access.c     |  0
  .../plugin/test-plugin-skip-syscalls.c        | 26 +++++++++++++++++++
  tests/tcg/plugins/syscall.c                   |  6 +++++
  tests/tcg/sparc64/Makefile.target             | 16 ++++++++++++
  12 files changed, 131 insertions(+), 3 deletions(-)
  create mode 100644 tests/tcg/mips64/Makefile.target
  create mode 100644 tests/tcg/mips64el/Makefile.target
  create mode 100644 tests/tcg/mipsel/Makefile.target
  rename tests/tcg/multiarch/{ => plugin}/check-plugin-output.sh (100%)
  rename tests/tcg/multiarch/{ => plugin}/test-plugin-mem-access.c (100%)
  create mode 100644 tests/tcg/multiarch/plugin/test-plugin-skip-syscalls.c
  create mode 100644 tests/tcg/sparc64/Makefile.target

diff --git a/tests/tcg/mips/Makefile.target b/tests/tcg/mips/Makefile.target
index 5d17c1706e..d08138f17b 100644
--- a/tests/tcg/mips/Makefile.target
+++ b/tests/tcg/mips/Makefile.target
@@ -9,11 +9,15 @@ MIPS_SRC=$(SRC_PATH)/tests/tcg/mips
  VPATH                 += $(MIPS_SRC)
# hello-mips is 32 bit only
-ifeq ($(findstring 64,$(TARGET_NAME)),)
  MIPS_TESTS=hello-mips
TESTS += $(MIPS_TESTS) hello-mips: CFLAGS+=-mno-abicalls -fno-PIC -fno-stack-protector -mabi=32
  hello-mips: LDFLAGS+=-nostdlib
+
+ifeq ($(CONFIG_PLUGIN),y)
+# qemu-mips(el) returns ENOSYS without triggering syscall plugin callbacks
+run-plugin-test-plugin-skip-syscalls-with-libsyscall.so:
+       $(call skip-test, $<, "qemu-mips does not execute invalid syscalls")

I ran into this while pulling syscall filter API recently, and found 4096 as syscall number, which seems to make all architectures happy.

See 948ffdd79b78702239aace2d32d4f581913299b3 for more details.

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