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Merge pull request #7417 from kalsprite/foreign_sig_named_struct

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Fix segfault comparing two foreign declarations of the same symbol
This commit is contained in:
Jeroen van Rijn
2026-08-22 03:11:27 +02:00
committed by GitHub
parent 082017cd2a c29596e88f
commit 830f41e280
5 changed files with 54 additions and 4 deletions
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2
tests/issues/run.bat
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@@ -42,6 +42,8 @@ set COMMON=-define:ODIN_TEST_FANCY=false -file -vet -strict-style -ignore-unused
..\..\..\odin check ..\test_issue_6979.odin -no-entry-point %COMMON% || exit /b
..\..\..\odin check ..\test_issue_7012.odin -no-entry-point %COMMON% || exit /b
..\..\..\odin check ..\test_issue_7260.odin -no-entry-point %COMMON% || exit /b
..\..\..\odin check ..\test_issue_foreign_redeclaration.odin -no-entry-point %COMMON% || exit /b
..\..\..\odin check ..\test_issue_foreign_redeclaration_mismatch.odin -no-entry-point %COMMON% 2>&1 | find /c "Error:" | findstr /x "1" || exit /b
..\..\..\odin build ..\test_issue_7037.odin %COMMON% -o:none || exit /b
..\..\..\odin build ..\test_issue_7188.odin %COMMON% || exit /b
clang -c ..\test_issue_sysv_abi.c -o test_issue_sysv_abi_c.o || exit /b

7
tests/issues/run.sh
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@@ -94,6 +94,13 @@ $ODIN test ../test_issue_7356.odin $COMMON
$ODIN build ../test_issue_7167.odin $COMMON
$ODIN build ../test_issue_7188.odin $COMMON
$ODIN check ../test_issue_7260.odin -no-entry-point $COMMON_CHECK
$ODIN check ../test_issue_foreign_redeclaration.odin -no-entry-point $COMMON_CHECK
if [[ $($ODIN check ../test_issue_foreign_redeclaration_mismatch.odin -no-entry-point $COMMON_CHECK 2>&1 >/dev/null | grep -c "Error:") -eq 1 ]]; then
echo "SUCCESSFUL 1/1"
else
echo "SUCCESSFUL 0/1"
exit 1
fi
if [[ $($ODIN build ../test_issue_7108.odin $COMMON 2>&1 >/dev/null | grep -c "Error:") -eq 2 ]]; then
echo "SUCCESSFUL 1/1"

23
tests/issues/test_issue_foreign_redeclaration.odin Normal file
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@@ -0,0 +1,23 @@
// Two declarations of the same foreign symbol whose parameters reach a named struct through a
// slice or a field read the wrong member of the type union and segfaulted the compiler
package test_issues
foreign import lib "this_library_does_not_exist"
Inner :: struct { a: i32, b: i32 }
Other :: struct { c: i32, d: i32 }
Wrap1 :: struct { f: Inner }
Wrap2 :: struct { f: Other }
@(default_calling_convention="c")
foreign lib {
@(link_name="via_slice") slice_1 :: proc(x: []Inner) ---
@(link_name="via_field") field_1 :: proc(x: Wrap1) ---
}
@(default_calling_convention="c")
foreign lib {
@(link_name="via_slice") slice_2 :: proc(x: []Other) ---
@(link_name="via_field") field_2 :: proc(x: Wrap2) ---
}

18
tests/issues/test_issue_foreign_redeclaration_mismatch.odin Normal file
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@@ -0,0 +1,18 @@
// The field comparison that guards this had been reading a type's name as its field list, so
// signatures this different were accepted whenever the two names differed in length
package test_issues
foreign import lib "this_library_does_not_exist"
Ints :: struct { a: i32, b: i32 }
Floats :: struct { c: f32, d: f32 }
@(default_calling_convention="c")
foreign lib {
@(link_name="mismatched") mismatched_1 :: proc(x: []Ints) ---
}
@(default_calling_convention="c")
foreign lib {
@(link_name="mismatched") mismatched_2 :: proc(x: []Floats) ---
}