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authorXavier Leroy <xavier.leroy@inria.fr>2015-01-27 16:57:20 +0100
committerXavier Leroy <xavier.leroy@inria.fr>2015-01-27 16:57:20 +0100
commite096fa7aa6161e1f5a74001185eb3873a684c48d (patch)
treeca928bcb3f7b6b2237a626fbb1dbc1ce62b2e5d1 /driver/Driver.ml
parentf00b70b6a17fdfb4e8606df891f6becc8102ef12 (diff)
downloadcompcert-e096fa7aa6161e1f5a74001185eb3873a684c48d.tar.gz
compcert-e096fa7aa6161e1f5a74001185eb3873a684c48d.zip
ABI compatibility for struct/union function arguments passed by value.
The passing of struct/union arguments by value implemented in the verified part of CompCert is not compatible with the ARM, PowerPC and x86 ABI. Here we enrich the StructReturn source-to-source emulation pass so that it implements the calling conventions defined in these ABIs. Plus: for x86, implement the returning of struct/union results by value in a way compatible with the ABI.
Diffstat (limited to 'driver/Driver.ml')
-rw-r--r--driver/Driver.ml5
1 files changed, 4 insertions, 1 deletions
diff --git a/driver/Driver.ml b/driver/Driver.ml
index 5d4c2f9c..31d5096b 100644
--- a/driver/Driver.ml
+++ b/driver/Driver.ml
@@ -241,6 +241,7 @@ let process_c_file sourcename =
let preproname = Filename.temp_file "compcert" ".i" in
preprocess sourcename preproname;
if !option_interp then begin
+ Machine.config := Machine.compcert_interpreter !Machine.config;
let csyntax = parse_c_file sourcename preproname in
safe_remove preproname;
Interp.execute csyntax;
@@ -583,7 +584,9 @@ let _ =
begin match Configuration.arch with
| "powerpc" -> Machine.ppc_32_bigendian
| "arm" -> Machine.arm_littleendian
- | "ia32" -> Machine.x86_32
+ | "ia32" -> if Configuration.system = "macosx"
+ then Machine.x86_32_macosx
+ else Machine.x86_32
| _ -> assert false
end;
Builtins.set C2C.builtins;