979d0ee8ab
The lexer can attempt to lex a _Pragma and crash with an out of bounds string access when it's lexing a _Pragma whose string token is an invalid buffer, e.g. when a module header file from which the macro expansion for that token was deleted from the file system. Differential Revision: https://reviews.llvm.org/D116052
28 lines
584 B
C
28 lines
584 B
C
// RUN: rm -rf %t
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// RUN: split-file %s %t
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// RUN: %clang_cc1 -emit-module -x c -fmodules -I %t/Inputs -fmodule-name=aa %t/Inputs/module.modulemap -o %t/aa.pcm
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// RUN: rm %t/Inputs/b.h
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// RUN: not %clang_cc1 -E -fmodules -I %t/Inputs -fmodule-file=%t/aa.pcm %s -o - -fallow-pcm-with-compiler-errors 2>&1 | FileCheck %s
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//--- Inputs/module.modulemap
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module aa {
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header "a.h"
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header "b.h"
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}
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//--- Inputs/a.h
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#define TEST(x) x
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//--- Inputs/b.h
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#define SUB "mypragma"
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//--- test.c
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#include "a.h"
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_Pragma(SUB);
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int a = TEST(SUB);
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// CHECK: int a
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// CHECK: 1 error generated
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