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From: Max Filippov <jcmvbkbc@gmail.com>
To: qemu-devel@nongnu.org
Cc: Max Filippov <jcmvbkbc@gmail.com>
Subject: [Qemu-devel] [PATCH 1/2] tests/tcg/xtensa: move exception handlers to separate section
Date: Fri, 31 Aug 2018 19:13:40 -0700	[thread overview]
Message-ID: <20180901021341.18066-2-jcmvbkbc@gmail.com> (raw)
In-Reply-To: <20180901021341.18066-1-jcmvbkbc@gmail.com>

Not all CPU configurations may have enough space for handler code
between exception/interrupt vectors. Leave jumps to the handlers at the
vectors, but move all handlers past the vectors area.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 tests/tcg/xtensa/linker.ld.S | 37 ++++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 15 deletions(-)

diff --git a/tests/tcg/xtensa/linker.ld.S b/tests/tcg/xtensa/linker.ld.S
index 5902302cf8fd..d0f33157ca9e 100644
--- a/tests/tcg/xtensa/linker.ld.S
+++ b/tests/tcg/xtensa/linker.ld.S
@@ -24,64 +24,71 @@ SECTIONS
 
     .vector :
     {
+#if XCHAL_HAVE_WINDOWED
     . = XCHAL_WINDOW_OF4_VECOFS;
         *(.vector.window_overflow_4)
-        *(.vector.window_overflow_4.*)
     . = XCHAL_WINDOW_UF4_VECOFS;
         *(.vector.window_underflow_4)
-        *(.vector.window_underflow_4.*)
     . = XCHAL_WINDOW_OF8_VECOFS;
         *(.vector.window_overflow_8)
-        *(.vector.window_overflow_8.*)
     . = XCHAL_WINDOW_UF8_VECOFS;
         *(.vector.window_underflow_8)
-        *(.vector.window_underflow_8.*)
     . = XCHAL_WINDOW_OF12_VECOFS;
         *(.vector.window_overflow_12)
-        *(.vector.window_overflow_12.*)
     . = XCHAL_WINDOW_UF12_VECOFS;
         *(.vector.window_underflow_12)
-        *(.vector.window_underflow_12.*)
-
+#endif
 #if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 2
     . = XCHAL_INTLEVEL2_VECOFS;
         *(.vector.level2)
-        *(.vector.level2.*)
 #endif
 #if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 3
     . = XCHAL_INTLEVEL3_VECOFS;
         *(.vector.level3)
-        *(.vector.level3.*)
 #endif
 #if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 4
     . = XCHAL_INTLEVEL4_VECOFS;
         *(.vector.level4)
-        *(.vector.level4.*)
 #endif
 #if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 5
     . = XCHAL_INTLEVEL5_VECOFS;
         *(.vector.level5)
-        *(.vector.level5.*)
 #endif
 #if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 6
     . = XCHAL_INTLEVEL6_VECOFS;
         *(.vector.level6)
-        *(.vector.level6.*)
 #endif
 #if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI >= 7
     . = XCHAL_INTLEVEL7_VECOFS;
         *(.vector.level7)
-        *(.vector.level7.*)
 #endif
 
     . = XCHAL_KERNEL_VECOFS;
         *(.vector.kernel)
-        *(.vector.kernel.*)
     . = XCHAL_USER_VECOFS;
         *(.vector.user)
-        *(.vector.user.*)
     . = XCHAL_DOUBLEEXC_VECOFS;
         *(.vector.double)
+    } > ram
+
+    .vector.text :
+    {
+        *(.vector.window_overflow_4.*)
+        *(.vector.window_underflow_4.*)
+        *(.vector.window_overflow_8.*)
+        *(.vector.window_underflow_8.*)
+        *(.vector.window_overflow_12.*)
+        *(.vector.window_underflow_12.*)
+
+        *(.vector.level2.*)
+        *(.vector.level3.*)
+        *(.vector.level4.*)
+        *(.vector.level5.*)
+        *(.vector.level6.*)
+        *(.vector.level7.*)
+
+        *(.vector.kernel.*)
+        *(.vector.user.*)
         *(.vector.double.*)
     } > ram
 
-- 
2.11.0

  reply	other threads:[~2018-09-01  2:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-01  2:13 [Qemu-devel] [PATCH 0/2] tests/tcg/xtensa: exception vectors/handlers improvement Max Filippov
2018-09-01  2:13 ` Max Filippov [this message]
2018-09-01  2:13 ` [Qemu-devel] [PATCH 2/2] tests/tcg/xtensa: only generate defined exception handlers Max Filippov

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