Nico Weber 8406839d19 Revert "[analyzer] Deprecate -analyzer-store region flag"
This reverts commit d50d9946d1d7e5f20881f0bc71fbd025040b1c96.
Broke check-clang, see comments on https://reviews.llvm.org/D126067

Also revert dependent change "[analyzer] Deprecate the unused 'analyzer-opt-analyze-nested-blocks' cc1 flag"
This reverts commit 07b4a6d0461fe64e10d30029ed3d598e49ca3810.

Also revert "[analyzer] Fix buildbots after introducing a new frontend warning"
This reverts commit 90374df15ddc58d823ca42326a76f58e748f20eb.
(See https://reviews.llvm.org/rG90374df15ddc58d823ca42326a76f58e748f20eb)
2022-06-10 08:50:13 -04:00

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651 B
C

// RUN: %clang_analyze_cc1 -analyzer-checker=alpha.unix.Chroot -analyzer-store region -verify %s
extern int chroot(const char* path);
extern int chdir(const char* path);
void foo(void) {
}
void f1(void) {
chroot("/usr/local"); // root changed.
foo(); // expected-warning {{No call of chdir("/") immediately after chroot}}
}
void f2(void) {
chroot("/usr/local"); // root changed.
chdir("/"); // enter the jail.
foo(); // no-warning
}
void f3(void) {
chroot("/usr/local"); // root changed.
chdir("../"); // change working directory, still out of jail.
foo(); // expected-warning {{No call of chdir("/") immediately after chroot}}
}