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authorDaniel Baumann <mail@daniel-baumann.ch>2025-06-06 10:05:23 +0000
committerDaniel Baumann <mail@daniel-baumann.ch>2025-06-06 10:05:23 +0000
commit755cc582a2473d06f3a2131d506d0311cc70e9f9 (patch)
tree3efb1ddb8d57bbb4539ac0d229b384871c57820f /scripts/coccinelle/exec_rw_const.cocci
parentInitial commit. (diff)
downloadqemu-upstream.tar.xz
qemu-upstream.zip
Adding upstream version 1:7.2+dfsg.upstream/1%7.2+dfsgupstream
Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>
Diffstat (limited to 'scripts/coccinelle/exec_rw_const.cocci')
-rw-r--r--scripts/coccinelle/exec_rw_const.cocci111
1 files changed, 111 insertions, 0 deletions
diff --git a/scripts/coccinelle/exec_rw_const.cocci b/scripts/coccinelle/exec_rw_const.cocci
new file mode 100644
index 00000000..1a202969
--- /dev/null
+++ b/scripts/coccinelle/exec_rw_const.cocci
@@ -0,0 +1,111 @@
+/*
+ Usage:
+
+ spatch \
+ --macro-file scripts/cocci-macro-file.h \
+ --sp-file scripts/coccinelle/exec_rw_const.cocci \
+ --keep-comments \
+ --in-place \
+ --dir .
+*/
+
+// Convert to boolean
+@@
+expression E1, E2, E3, E4, E5;
+@@
+(
+- address_space_rw(E1, E2, E3, E4, E5, 0)
++ address_space_rw(E1, E2, E3, E4, E5, false)
+|
+- address_space_rw(E1, E2, E3, E4, E5, 1)
++ address_space_rw(E1, E2, E3, E4, E5, true)
+|
+
+- cpu_physical_memory_rw(E1, E2, E3, 0)
++ cpu_physical_memory_rw(E1, E2, E3, false)
+|
+- cpu_physical_memory_rw(E1, E2, E3, 1)
++ cpu_physical_memory_rw(E1, E2, E3, true)
+|
+
+- cpu_physical_memory_map(E1, E2, 0)
++ cpu_physical_memory_map(E1, E2, false)
+|
+- cpu_physical_memory_map(E1, E2, 1)
++ cpu_physical_memory_map(E1, E2, true)
+)
+
+// Use address_space_write instead of casting to non-const
+@@
+type T;
+const T *V;
+expression E1, E2, E3, E4;
+@@
+(
+- address_space_rw(E1, E2, E3, (T *)V, E4, 1)
++ address_space_write(E1, E2, E3, V, E4)
+|
+- address_space_rw(E1, E2, E3, (void *)V, E4, 1)
++ address_space_write(E1, E2, E3, V, E4)
+)
+
+// Avoid uses of address_space_rw() with a constant is_write argument.
+@@
+expression E1, E2, E3, E4, E5;
+symbol true, false;
+@@
+(
+- address_space_rw(E1, E2, E3, E4, E5, false)
++ address_space_read(E1, E2, E3, E4, E5)
+|
+- address_space_rw(E1, E2, E3, E4, E5, true)
++ address_space_write(E1, E2, E3, E4, E5)
+)
+
+// Avoid uses of cpu_physical_memory_rw() with a constant is_write argument.
+@@
+expression E1, E2, E3;
+@@
+(
+- cpu_physical_memory_rw(E1, E2, E3, false)
++ cpu_physical_memory_read(E1, E2, E3)
+|
+- cpu_physical_memory_rw(E1, E2, E3, true)
++ cpu_physical_memory_write(E1, E2, E3)
+)
+
+// Remove useless cast
+@@
+expression E1, E2, E3, E4, E5, E6;
+type T;
+@@
+(
+- address_space_rw(E1, E2, E3, (T *)(E4), E5, E6)
++ address_space_rw(E1, E2, E3, E4, E5, E6)
+|
+- address_space_read(E1, E2, E3, (T *)(E4), E5)
++ address_space_read(E1, E2, E3, E4, E5)
+|
+- address_space_write(E1, E2, E3, (T *)(E4), E5)
++ address_space_write(E1, E2, E3, E4, E5)
+|
+- address_space_write_rom(E1, E2, E3, (T *)(E4), E5)
++ address_space_write_rom(E1, E2, E3, E4, E5)
+|
+
+- cpu_physical_memory_rw(E1, (T *)(E2), E3, E4)
++ cpu_physical_memory_rw(E1, E2, E3, E4)
+|
+- cpu_physical_memory_read(E1, (T *)(E2), E3)
++ cpu_physical_memory_read(E1, E2, E3)
+|
+- cpu_physical_memory_write(E1, (T *)(E2), E3)
++ cpu_physical_memory_write(E1, E2, E3)
+|
+
+- dma_memory_read(E1, E2, (T *)(E3), E4)
++ dma_memory_read(E1, E2, E3, E4)
+|
+- dma_memory_write(E1, E2, (T *)(E3), E4)
++ dma_memory_write(E1, E2, E3, E4)
+)