[compiler-rt] r207622 - [msan] Prettify __msan_print_shadow.
Evgeniy Stepanov
eugeni.stepanov at gmail.com
Fri May 2 11:34:10 PDT 2014
I think the last print call has to be 4-byte aligned. Could you try
replacing the string with an int or something like that? I don't have a dev
machine nearby.
On May 2, 2014 10:29 PM, "David Blaikie" <dblaikie at gmail.com> wrote:
> On Wed, Apr 30, 2014 at 2:29 PM, Alexey Samsonov <samsonov at google.com>
> wrote:
> > I see the following test failure locally:
> >
> > llvm/projects/compiler-rt/test/msan/msan_print_shadow2.cc:48:22: error:
> > expected string not found in input
> > // CHECK-NO-ORIGINS: 0x{{.*}}: 000000.. ........ ........ ........
> > ^
> > <stdin>:16:1: note: scanning from here
> > 0x3f8e8a279e44: ....0000 00...... ........ ........
> > ^
> > <stdin>:16:14: note: possible intended match here
> > 0x3f8e8a279e44: ....0000 00...... ........ ........
> > ^
>
> Bump. I see this failure locally too.
>
> projects/compiler-rt/test/msan/msan_print_shadow2.cc:48:22: error:
> expected string not found in input
> // CHECK-NO-ORIGINS: 0x{{.*}}: 000000.. ........ ........ ........
> ^
> <stdin>:16:1: note: scanning from here
> 0x3fafc42415d4: ....0000 00...... ........ ........
> ^
> <stdin>:16:14: note: possible intended match here
> 0x3fafc42415d4: ....0000 00...... ........ ........
>
> >
> >
> >
> > On Wed, Apr 30, 2014 at 2:50 AM, Evgeniy Stepanov
> > <eugeni.stepanov at gmail.com> wrote:
> >>
> >> Author: eugenis
> >> Date: Wed Apr 30 04:50:30 2014
> >> New Revision: 207622
> >>
> >> URL: http://llvm.org/viewvc/llvm-project?rev=207622&view=rev
> >> Log:
> >> [msan] Prettify __msan_print_shadow.
> >>
> >> Makes __msan_print_shadow output much more readable, adds origin info.
> >>
> >> Added:
> >> compiler-rt/trunk/test/msan/msan_dump_shadow.cc (with props)
> >> compiler-rt/trunk/test/msan/msan_print_shadow.cc (with props)
> >> compiler-rt/trunk/test/msan/msan_print_shadow2.cc (with props)
> >> Modified:
> >> compiler-rt/trunk/include/sanitizer/msan_interface.h
> >> compiler-rt/trunk/lib/msan/msan.cc
> >> compiler-rt/trunk/lib/msan/msan.h
> >> compiler-rt/trunk/lib/msan/msan_interface_internal.h
> >> compiler-rt/trunk/lib/msan/msan_report.cc
> >>
> >> Modified: compiler-rt/trunk/include/sanitizer/msan_interface.h
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/include/sanitizer/msan_interface.h?rev=207622&r1=207621&r2=207622&view=diff
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/include/sanitizer/msan_interface.h (original)
> >> +++ compiler-rt/trunk/include/sanitizer/msan_interface.h Wed Apr 30
> >> 04:50:30 2014
> >> @@ -78,6 +78,10 @@ extern "C" {
> >> format. */
> >> void __msan_print_shadow(const volatile void *x, size_t size);
> >>
> >> + /* Print shadow for the memory range to stderr in a minimalistic
> >> + human-readable format. */
> >> + void __msan_dump_shadow(const volatile void *x, size_t size);
> >> +
> >> /* Returns true if running under a dynamic tool (DynamoRio-based). */
> >> int __msan_has_dynamic_component();
> >>
> >>
> >> Modified: compiler-rt/trunk/lib/msan/msan.cc
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/msan/msan.cc?rev=207622&r1=207621&r2=207622&view=diff
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/lib/msan/msan.cc (original)
> >> +++ compiler-rt/trunk/lib/msan/msan.cc Wed Apr 30 04:50:30 2014
> >> @@ -383,18 +383,21 @@ void __msan_print_shadow(const void *x,
> >> Printf("Not a valid application address: %p\n", x);
> >> return;
> >> }
> >> +
> >> + DescribeMemoryRange(x, size);
> >> +}
> >> +
> >> +void __msan_dump_shadow(const void *x, uptr size) {
> >> + if (!MEM_IS_APP(x)) {
> >> + Printf("Not a valid application address: %p\n", x);
> >> + return;
> >> + }
> >> +
> >> unsigned char *s = (unsigned char*)MEM_TO_SHADOW(x);
> >> - u32 *o = (u32*)MEM_TO_ORIGIN(x);
> >> for (uptr i = 0; i < size; i++) {
> >> Printf("%x%x ", s[i] >> 4, s[i] & 0xf);
> >> }
> >> Printf("\n");
> >> - if (__msan_get_track_origins()) {
> >> - for (uptr i = 0; i < size / 4; i++) {
> >> - Printf(" o: %x ", o[i]);
> >> - }
> >> - Printf("\n");
> >> - }
> >> }
> >>
> >> sptr __msan_test_shadow(const void *x, uptr size) {
> >>
> >> Modified: compiler-rt/trunk/lib/msan/msan.h
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/msan/msan.h?rev=207622&r1=207621&r2=207622&view=diff
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/lib/msan/msan.h (original)
> >> +++ compiler-rt/trunk/lib/msan/msan.h Wed Apr 30 04:50:30 2014
> >> @@ -83,6 +83,7 @@ void GetStackTrace(StackTrace *stack, up
> >> void ReportUMR(StackTrace *stack, u32 origin);
> >> void ReportExpectedUMRNotFound(StackTrace *stack);
> >> void ReportAtExitStatistics();
> >> +void DescribeMemoryRange(const void *x, uptr size);
> >>
> >> // Unpoison first n function arguments.
> >> void UnpoisonParam(uptr n);
> >>
> >> Modified: compiler-rt/trunk/lib/msan/msan_interface_internal.h
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/msan/msan_interface_internal.h?rev=207622&r1=207621&r2=207622&view=diff
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/lib/msan/msan_interface_internal.h (original)
> >> +++ compiler-rt/trunk/lib/msan/msan_interface_internal.h Wed Apr 30
> >> 04:50:30 2014
> >> @@ -118,6 +118,8 @@ void __msan_set_expect_umr(int expect_um
> >> SANITIZER_INTERFACE_ATTRIBUTE
> >> void __msan_print_shadow(const void *x, uptr size);
> >> SANITIZER_INTERFACE_ATTRIBUTE
> >> +void __msan_dump_shadow(const void *x, uptr size);
> >> +SANITIZER_INTERFACE_ATTRIBUTE
> >> int __msan_has_dynamic_component();
> >>
> >> // Returns x such that %fs:x is the first byte of __msan_retval_tls.
> >>
> >> Modified: compiler-rt/trunk/lib/msan/msan_report.cc
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/msan/msan_report.cc?rev=207622&r1=207621&r2=207622&view=diff
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/lib/msan/msan_report.cc (original)
> >> +++ compiler-rt/trunk/lib/msan/msan_report.cc Wed Apr 30 04:50:30 2014
> >> @@ -124,4 +124,115 @@ void ReportAtExitStatistics() {
> >> Printf("Stack depot mapped bytes: %zu\n", stack_depot_stats->mapped);
> >> }
> >>
> >> +class OriginSet {
> >> + public:
> >> + OriginSet() : next_id_(0) {}
> >> + int insert(u32 o) {
> >> + // Scan from the end for better locality.
> >> + for (int i = next_id_ - 1; i >= 0; --i)
> >> + if (origins_[i] == o) return i;
> >> + if (next_id_ == kMaxSize_) return OVERFLOW;
> >> + int id = next_id_++;
> >> + origins_[id] = o;
> >> + return id;
> >> + }
> >> + int size() { return next_id_; }
> >> + u32 get(int id) { return origins_[id]; }
> >> + static char asChar(int id) {
> >> + switch (id) {
> >> + case MISSING:
> >> + return '.';
> >> + case OVERFLOW:
> >> + return '*';
> >> + default:
> >> + return 'A' + id;
> >> + }
> >> + }
> >> + static const int OVERFLOW = -1;
> >> + static const int MISSING = -2;
> >> +
> >> + private:
> >> + static const int kMaxSize_ = 'Z' - 'A' + 1;
> >> + u32 origins_[kMaxSize_];
> >> + int next_id_;
> >> +};
> >> +
> >> +void DescribeMemoryRange(const void *x, uptr size) {
> >> + // Real limits.
> >> + uptr start = MEM_TO_SHADOW(x);
> >> + uptr end = start + size;
> >> + // Scan limits: align start down to 4; align size up to 16.
> >> + uptr s = start & ~3UL;
> >> + size = end - s;
> >> + size = (size + 15) & ~15UL;
> >> + uptr e = s + size;
> >> +
> >> + // Single letter names to origin id mapping.
> >> + OriginSet origin_set;
> >> +
> >> + uptr pos = 0; // Offset from aligned start.
> >> + bool with_origins = __msan_get_track_origins();
> >> + // True if there is at least 1 poisoned bit in the last 4-byte group.
> >> + bool last_quad_poisoned;
> >> + int origin_ids[4]; // Single letter origin ids for the current line.
> >> +
> >> + Decorator d;
> >> + Printf("%s", d.Warning());
> >> + Printf("Shadow map of [%p, %p), %zu bytes:\n", start, end, end -
> >> start);
> >> + Printf("%s", d.End());
> >> + while (s < e) {
> >> + // Line start.
> >> + if (pos % 16 == 0) {
> >> + for (int i = 0; i < 4; ++i) origin_ids[i] = -1;
> >> + Printf("%p:", s);
> >> + }
> >> + // Group start.
> >> + if (pos % 4 == 0) {
> >> + Printf(" ");
> >> + last_quad_poisoned = false;
> >> + }
> >> + // Print shadow byte.
> >> + if (s < start || s >= end) {
> >> + Printf("..");
> >> + } else {
> >> + unsigned char v = *(unsigned char *)s;
> >> + if (v) last_quad_poisoned = true;
> >> + Printf("%02x", v);
> >> + }
> >> + // Group end.
> >> + if (pos % 4 == 3 && with_origins) {
> >> + int id = OriginSet::MISSING;
> >> + if (last_quad_poisoned) {
> >> + u32 o = *(u32 *)SHADOW_TO_ORIGIN(s - 3);
> >> + id = origin_set.insert(o);
> >> + }
> >> + origin_ids[(pos % 16) / 4] = id;
> >> + }
> >> + // Line end.
> >> + if (pos % 16 == 15) {
> >> + if (with_origins) {
> >> + Printf(" |");
> >> + for (int i = 0; i < 4; ++i) {
> >> + char c = OriginSet::asChar(origin_ids[i]);
> >> + Printf("%c", c);
> >> + if (i != 3) Printf(" ");
> >> + }
> >> + Printf("|");
> >> + }
> >> + Printf("\n");
> >> + }
> >> + size--;
> >> + s++;
> >> + pos++;
> >> + }
> >> +
> >> + Printf("\n");
> >> +
> >> + for (int i = 0; i < origin_set.size(); ++i) {
> >> + u32 o = origin_set.get(i);
> >> + Printf("Origin %c (origin_id %x):\n", OriginSet::asChar(i), o);
> >> + DescribeOrigin(o);
> >> + }
> >> +}
> >> +
> >> } // namespace __msan
> >>
> >> Added: compiler-rt/trunk/test/msan/msan_dump_shadow.cc
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/msan/msan_dump_shadow.cc?rev=207622&view=auto
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/test/msan/msan_dump_shadow.cc (added)
> >> +++ compiler-rt/trunk/test/msan/msan_dump_shadow.cc Wed Apr 30 04:50:30
> >> 2014
> >> @@ -0,0 +1,22 @@
> >> +// RUN: %clangxx_msan -m64 -O0 -g %s -o %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s < %t.out
> >> +
> >> +// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O0 -g %s -o
> >> %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s < %t.out
> >> +
> >> +// RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -m64 -O0 -g %s
> -o
> >> %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s < %t.out
> >> +
> >> +#include <sanitizer/msan_interface.h>
> >> +
> >> +int main(void) {
> >> + char *p = new char[16];
> >> + __msan_dump_shadow(p, 5);
> >> + delete[] p;
> >> + const char *q = "abc";
> >> + __msan_dump_shadow(q, 3);
> >> + return 0;
> >> +}
> >> +
> >> +// CHECK: ff ff ff ff ff
> >> +// CHECK: 00 00 00
> >>
> >> Propchange: compiler-rt/trunk/test/msan/msan_dump_shadow.cc
> >>
> >>
> ------------------------------------------------------------------------------
> >> svn:eol-style = LF
> >>
> >> Added: compiler-rt/trunk/test/msan/msan_print_shadow.cc
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/msan/msan_print_shadow.cc?rev=207622&view=auto
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/test/msan/msan_print_shadow.cc (added)
> >> +++ compiler-rt/trunk/test/msan/msan_print_shadow.cc Wed Apr 30 04:50:30
> >> 2014
> >> @@ -0,0 +1,122 @@
> >> +// RUN: %clangxx_msan -m64 -O0 -g %s -o %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s --check-prefix=CHECK
> --check-prefix=CHECK-NO-ORIGINS
> >> < %t.out
> >> +
> >> +// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O0 -g %s -o
> >> %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS
> <
> >> %t.out
> >> +
> >> +// RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -m64 -O0 -g %s
> -o
> >> %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS
> >> --check-prefix=CHECK-ORIGINS-2 < %t.out
> >> +
> >> +#include <sanitizer/msan_interface.h>
> >> +
> >> +int main(void) {
> >> + char volatile x;
> >> + char *p = new char[320];
> >> + p[2] = p[5] = 1;
> >> + p[8] = p[9] = p[10] = p[11] = p[12] = 2;
> >> +
> >> + __msan_allocated_memory(p + 4*3, 4);
> >> + __msan_allocated_memory(p + 4*4, 4);
> >> + __msan_allocated_memory(p + 4*5, 4);
> >> + __msan_allocated_memory(p + 4*6, 4);
> >> + __msan_allocated_memory(p + 4*7, 4);
> >> + __msan_allocated_memory(p + 4*8, 4);
> >> + __msan_allocated_memory(p + 4*9, 4);
> >> + __msan_allocated_memory(p + 4*10, 4);
> >> + __msan_allocated_memory(p + 4*11, 4);
> >> + __msan_allocated_memory(p + 4*12, 4);
> >> + __msan_allocated_memory(p + 4*13, 4);
> >> + __msan_allocated_memory(p + 4*14, 4);
> >> + __msan_allocated_memory(p + 4*15, 4);
> >> + __msan_allocated_memory(p + 4*16, 4);
> >> + __msan_allocated_memory(p + 4*17, 4);
> >> + __msan_allocated_memory(p + 4*18, 4);
> >> + __msan_allocated_memory(p + 4*19, 4);
> >> + __msan_allocated_memory(p + 4*20, 4);
> >> + __msan_allocated_memory(p + 4*21, 4);
> >> + __msan_allocated_memory(p + 4*22, 4);
> >> + __msan_allocated_memory(p + 4*23, 4);
> >> + __msan_allocated_memory(p + 4*24, 4);
> >> + __msan_allocated_memory(p + 4*25, 4);
> >> + __msan_allocated_memory(p + 4*26, 4);
> >> + __msan_allocated_memory(p + 4*27, 4);
> >> + __msan_allocated_memory(p + 4*28, 4);
> >> + __msan_allocated_memory(p + 4*29, 4);
> >> + __msan_allocated_memory(p + 4*30, 4);
> >> + __msan_allocated_memory(p + 4*31, 4);
> >> +
> >> + p[19] = x;
> >> +
> >> + __msan_print_shadow(p+5, 297);
> >> + delete[] p;
> >> + return 0;
> >> +}
> >> +
> >> +// CHECK: Shadow map of [{{.*}}), 297 bytes:
> >> +
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ..00ffff 00000000 ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffff.... ........
> >> +
> >> +// CHECK-ORIGINS: 0x{{.*}}: ..00ffff 00000000 ffffffff ffffffff |A . B
> >> C|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |D E F
> >> G|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |H I J
> >> K|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |L M N
> >> O|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |P Q R
> >> S|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |T U V
> >> W|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |X Y Z
> >> *|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |* * *
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffffffff ffffffff |A A A
> >> A|
> >> +// CHECK-ORIGINS: 0x{{.*}}: ffffffff ffffffff ffff.... ........ |A A A
> >> .|
> >> +
> >> +// CHECK-ORIGINS: Origin A (origin_id {{.*}}):
> >> +// CHECK-ORIGINS: Uninitialized value was created by a heap
> allocation
> >> +// CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:14
> >> +
> >> +// CHECK-ORIGINS: Origin B (origin_id {{.*}}):
> >> +// CHECK-ORIGINS: Uninitialized value was created by a heap
> allocation
> >> +// CHECK-ORIGINS: #0 {{.*}} in __msan_allocated_memory
> >> +// CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:18
> >> +
> >> +// CHECK-ORIGINS: Origin C (origin_id {{.*}}):
> >> +// CHECK-ORIGINS-2: Uninitialized value was stored to memory at
> >> +// CHECK-ORIGINS-2: #0 {{.*}} in main{{.*}}msan_print_shadow.cc:48
> >> +// CHECK-ORIGINS: Uninitialized value was created by an allocation of
> >> 'x' in the stack frame of function 'main'
> >> +// CHECK-ORIGINS: #0 {{.*}} in main{{.*}}msan_print_shadow.cc:12
> >> +
> >> +// CHECK-ORIGINS: Origin D (origin_id {{.*}}):
> >> +// CHECK-ORIGINS: Uninitialized value was created by a heap
> allocation
> >> +// CHECK-ORIGINS: #0 {{.*}} in __msan_allocated_memory
> >> +// CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:20
> >> +
> >> +// ...
> >> +
> >> +// CHECK-ORIGINS: Origin Z (origin_id {{.*}}):
> >> +// CHECK-ORIGINS: Uninitialized value was created by a heap
> allocation
> >> +// CHECK-ORIGINS: #0 {{.*}} in __msan_allocated_memory
> >> +// CHECK-ORIGINS: #1 {{.*}} in main{{.*}}msan_print_shadow.cc:42
> >>
> >> Propchange: compiler-rt/trunk/test/msan/msan_print_shadow.cc
> >>
> >>
> ------------------------------------------------------------------------------
> >> svn:eol-style = LF
> >>
> >> Added: compiler-rt/trunk/test/msan/msan_print_shadow2.cc
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/msan/msan_print_shadow2.cc?rev=207622&view=auto
> >>
> >>
> ==============================================================================
> >> --- compiler-rt/trunk/test/msan/msan_print_shadow2.cc (added)
> >> +++ compiler-rt/trunk/test/msan/msan_print_shadow2.cc Wed Apr 30
> 04:50:30
> >> 2014
> >> @@ -0,0 +1,49 @@
> >> +// RUN: %clangxx_msan -m64 -O0 -g %s -o %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s --check-prefix=CHECK
> --check-prefix=CHECK-NO-ORIGINS
> >> < %t.out
> >> +
> >> +// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O0 -g %s -o
> >> %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS
> <
> >> %t.out
> >> +
> >> +// RUN: %clangxx_msan -fsanitize-memory-track-origins=2 -m64 -O0 -g %s
> -o
> >> %t && %t >%t.out 2>&1
> >> +// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ORIGINS
> <
> >> %t.out
> >> +
> >> +#include <sanitizer/msan_interface.h>
> >> +
> >> +int main(void) {
> >> + char *p = new char[16];
> >> + __msan_print_shadow(p, 1);
> >> + __msan_print_shadow(p+1, 1);
> >> + __msan_print_shadow(p+3, 1);
> >> + __msan_print_shadow(p+15, 1);
> >> + __msan_print_shadow(p, 0);
> >> + delete[] p;
> >> + const char *q = "abc";
> >> + __msan_print_shadow(q, 3);
> >> + return 0;
> >> +}
> >> +
> >> +// CHECK: Shadow map of [0x{{.*}}, 0x{{.*}}), 1 bytes:
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ff...... ........ ........ ........
> >> +// CHECK-ORIGINS: 0x{{.*}}: ff...... ........ ........ ........ |A
> . .
> >> .|
> >> +// CHECK-ORIGINS: Origin A (origin_id {{.*}}):
> >> +
> >> +// CHECK: Shadow map of [0x{{.*}}, 0x{{.*}}), 1 bytes:
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ..ff.... ........ ........ ........
> >> +// CHECK-ORIGINS: 0x{{.*}}: ..ff.... ........ ........ ........ |A
> . .
> >> .|
> >> +// CHECK-ORIGINS: Origin A (origin_id {{.*}}):
> >> +
> >> +// CHECK: Shadow map of [0x{{.*}}, 0x{{.*}}), 1 bytes:
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ......ff ........ ........ ........
> >> +// CHECK-ORIGINS: 0x{{.*}}: ......ff ........ ........ ........ |A
> . .
> >> .|
> >> +// CHECK-ORIGINS: Origin A (origin_id {{.*}}):
> >> +
> >> +// CHECK: Shadow map of [0x{{.*}}, 0x{{.*}}), 1 bytes:
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: ......ff ........ ........ ........
> >> +// CHECK-ORIGINS: 0x{{.*}}: ......ff ........ ........ ........ |A
> . .
> >> .|
> >> +// CHECK-ORIGINS: Origin A (origin_id {{.*}}):
> >> +
> >> +// CHECK: Shadow map of [0x{{.*}}, 0x{{.*}}), 0 bytes:
> >> +
> >> +// CHECK: Shadow map of [0x{{.*}}, 0x{{.*}}), 3 bytes:
> >> +// CHECK-NO-ORIGINS: 0x{{.*}}: 000000.. ........ ........ ........
> >> +// CHECK-ORIGINS: 0x{{.*}}: 000000.. ........ ........ ........ |.
> . .
> >> .|
> >>
> >> Propchange: compiler-rt/trunk/test/msan/msan_print_shadow2.cc
> >>
> >>
> ------------------------------------------------------------------------------
> >> svn:eol-style = LF
> >>
> >>
> >> _______________________________________________
> >> llvm-commits mailing list
> >> llvm-commits at cs.uiuc.edu
> >> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
> >
> >
> >
> >
> > --
> > Alexey Samsonov, Mountain View, CA
> >
> > _______________________________________________
> > llvm-commits mailing list
> > llvm-commits at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
> >
>
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