643a2080ec
When running tests in compiler-rt using the lit internal shell with the following command: ``` LIT_USE_INTERNAL_SHELL=1 ninja check-compiler-rt ``` one common error that occurs is: ``` 'XRAY_OPTIONS=patch_premain=false:verbosity=1': command not found ``` This error, along with over 50 similar "environment variable not found" errors, appears across 35 files in complier-rt. These errors happen because the environment variables are not being set correctly when the internal shell is used, leading to commands failing due to unrecognized environment variables. This patch addresses the issue by using the `env` command to properly set the environment variables before running the tests. By explicitly setting the environment variables through `env`, the internal shell can correctly interpret and apply them, allowing the tests to pass. fixes: #102395 [link to RFC](https://discourse.llvm.org/t/rfc-enabling-the-lit-internal-shell-by-default/80179)
185 lines
7.0 KiB
C++
185 lines
7.0 KiB
C++
// This test program creates a very large number of unique histories.
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// Heap origin.
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// RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -O3 %s -o %t
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// RUN: env MSAN_OPTIONS=origin_history_size=7 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=2 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK2 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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// Stack origin.
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// RUN: %clangxx_msan -DSTACK -fsanitize-memory-track-origins=2 -O3 %s -o %t
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// RUN: env MSAN_OPTIONS=origin_history_size=7 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=2 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK2 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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// Heap origin, with calls.
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// RUN: %clangxx_msan -mllvm -msan-instrumentation-with-call-threshold=0 -fsanitize-memory-track-origins=2 -O3 %s -o %t
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// RUN: env MSAN_OPTIONS=origin_history_size=7 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=2 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK2 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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// Stack origin, with calls.
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// RUN: %clangxx_msan -DSTACK -mllvm -msan-instrumentation-with-call-threshold=0 -fsanitize-memory-track-origins=2 -O3 %s -o %t
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// RUN: env MSAN_OPTIONS=origin_history_size=7 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=2 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK2 < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_per_stack_limit=1 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK-PER-STACK --check-prefix=CHECK-%short-stack < %t.out
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// RUN: env MSAN_OPTIONS=origin_history_size=7,origin_history_per_stack_limit=0 not %run %t >%t.out 2>&1
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// RUN: FileCheck %s --check-prefix=CHECK7 < %t.out
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static char *buf, *cur, *end;
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void init() {
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buf = new char[1000];
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#ifdef STACK
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char stackbuf[1000];
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char *volatile p = stackbuf;
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memcpy(buf, p, 1000);
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#endif
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cur = buf;
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end = buf + 1000;
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}
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void line_flush() {
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char *p;
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for (p = cur - 1; p >= buf; --p)
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if (*p == '\n')
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break;
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if (p >= buf) {
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size_t write_sz = p - buf + 1;
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// write(2, buf, write_sz);
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memmove(buf, p + 1, end - p - 1);
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cur -= write_sz;
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}
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}
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void buffered_write(const char *p, size_t sz) {
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while (sz > 0) {
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size_t copy_sz = end - cur;
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if (sz < copy_sz) copy_sz = sz;
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memcpy(cur, p, copy_sz);
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cur += copy_sz;
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sz -= copy_sz;
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line_flush();
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}
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}
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void fn1() {
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buffered_write("a\n", 2);
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}
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void fn2() {
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buffered_write("a\n", 2);
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}
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void fn3() {
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buffered_write("a\n", 2);
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}
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int main(void) {
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init();
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for (int i = 0; i < 2000; ++i) {
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fn1();
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fn2();
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fn3();
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}
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return buf[50];
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}
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// CHECK7: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK7-NOT: Uninitialized value was stored to memory at
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// CHECK7: Uninitialized value was stored to memory at
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// CHECK7-NOT: Uninitialized value was stored to memory at
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// CHECK7: Uninitialized value was stored to memory at
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// CHECK7-NOT: Uninitialized value was stored to memory at
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// CHECK7: Uninitialized value was stored to memory at
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// CHECK7-NOT: Uninitialized value was stored to memory at
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// CHECK7: Uninitialized value was stored to memory at
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// CHECK7-NOT: Uninitialized value was stored to memory at
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// CHECK7: Uninitialized value was stored to memory at
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// CHECK7-NOT: Uninitialized value was stored to memory at
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// CHECK7: Uninitialized value was stored to memory at
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// CHECK7-NOT: Uninitialized value was stored to memory at
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// CHECK7: Uninitialized value was created
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// CHECK2: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK2-NOT: Uninitialized value was stored to memory at
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// CHECK2: Uninitialized value was stored to memory at
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// CHECK2-NOT: Uninitialized value was stored to memory at
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// CHECK2: Uninitialized value was created
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// For architectures with short stack all the stacks in the chain are same
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// because the stack trace does not contain frames upto the functions fn1, fn2,
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// fn3 from where the uninitialized stores actually originate. Since we report
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// uninitialized value store once for each stack frame
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// (origin_history_per_stack_limit = 1) we expect only one instance of
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// "Uninitialized value was stored to memory at".
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// CHECK-PER-STACK: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK-PER-STACK: Uninitialized value was stored to memory at
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// CHECK-SHORT-STACK: in __msan_memmove
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// CHECK-FULL-STACK: in fn3
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// CHECK-FULL-STACK: Uninitialized value was stored to memory at
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// CHECK-FULL-STACK: in fn2
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// CHECK-FULL-STACK: Uninitialized value was stored to memory at
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// CHECK-FULL-STACK: in fn1
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// CHECK-PER-STACK: Uninitialized value was created
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// CHECK-UNLIMITED: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was stored to memory at
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// CHECK-UNLIMITED: Uninitialized value was created
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