[compiler-rt] r336678 - Reapply "Make __gcov_flush flush counters for all shared libraries"
Thomas Preudhomme via llvm-commits
llvm-commits at lists.llvm.org
Thu Jul 12 02:13:11 PDT 2018
My bad my message was meant to Marco.
On Thu, 12 Jul 2018 at 10:11, Thomas Preudhomme
<thomas.preudhomme at linaro.org> wrote:
>
> This commit seems to cause a test failure on Aarch64 which persist to
> this day: http://lab.llvm.org:8011/builders/clang-cmake-aarch64-full/builds/5440/steps/ninja%20check%202/logs/FAIL%3A%20Profile-aarch64%3A%3A%20instrprof-dlopen-dlclose-gcov.test
>
> Should this be reverted or do you think a fix can be found quickly?
>
> Best regards,
>
> Thomas
> On Wed, 11 Jul 2018 at 00:38, via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
> >
> > Sounds good. Thanks for looking at this!
> >
> >
> >
> > Matthew
> >
> >
> >
> > From: Marco Castelluccio [mailto:mcastelluccio at mozilla.com]
> > Sent: Tuesday, July 10, 2018 4:37 PM
> > To: Voss, Matthew; eugeni.stepanov at gmail.com
> > Cc: llvm-commits at lists.llvm.org; uweigand at de.ibm.com
> > Subject: Re: [compiler-rt] r336678 - Reapply "Make __gcov_flush flush counters for all shared libraries"
> >
> >
> >
> > Actually, I think r336693 is what caused the failure, it's not a spurious failure.
> > https://reviews.llvm.org/D49161 should fix it.
> >
> > Thanks,
> > Marco.
> >
> >
> >
> > Il 10/07/2018 23:30, Matthew.Voss at sony.com ha scritto:
> >
> > Hmm… We build the PS4 target on Windows. I’m assuming that’s sanitizer-x86_64-windows?
> >
> >
> >
> > Thanks,
> >
> > Matthew
> >
> >
> >
> >
> >
> >
> >
> > From: Marco Castelluccio [mailto:mcastelluccio at mozilla.com]
> > Sent: Tuesday, July 10, 2018 2:20 PM
> > To: Voss, Matthew; eugeni.stepanov at gmail.com
> > Cc: llvm-commits at lists.llvm.org
> > Subject: Re: [compiler-rt] r336678 - Reapply "Make __gcov_flush flush counters for all shared libraries"
> >
> >
> >
> > I'm going to mark the test as failing on sanitizer-x86_64-linux for now.
> > Matthew, is it the same target failing for you?
> >
> > Thanks,
> > Marco.
> >
> > Il 10/07/2018 23:10, Matthew.Voss at sony.com ha scritto:
> >
> > Hi Marco,
> >
> >
> >
> > This change is also breaking our internal bots. Could you take a look at this?
> >
> >
> >
> > Thanks,
> >
> > Matthew
> >
> >
> >
> > From: llvm-commits [mailto:llvm-commits-bounces at lists.llvm.org] On Behalf Of Evgenii Stepanov via llvm-commits
> > Sent: Tuesday, July 10, 2018 11:23 AM
> > To: Marco Castelluccio
> > Cc: LLVM Commits
> > Subject: Re: [compiler-rt] r336678 - Reapply "Make __gcov_flush flush counters for all shared libraries"
> >
> >
> >
> > Hi,
> >
> >
> >
> > it looks like instrprof-shared-gcov-flush.test needs more XFAILs. See this x86/x86_64 failure:
> >
> > http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/13413/steps/test%20standalone%20compiler-rt/logs/stdio
> >
> >
> >
> > On Tue, Jul 10, 2018 at 7:12 AM, Marco Castelluccio via llvm-commits <llvm-commits at lists.llvm.org> wrote:
> >
> > Author: marco
> > Date: Tue Jul 10 07:12:03 2018
> > New Revision: 336678
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=336678&view=rev
> > Log:
> > Reapply "Make __gcov_flush flush counters for all shared libraries"
> >
> > This reapplies r336365, after marking tests as failing on various
> > configurations.
> >
> > Added:
> > compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main_three-libs.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main_three-libs.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func2.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func2.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func3.c
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func3.c
> > compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func3.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-func3.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-lib.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-lib.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-lib_called-twice.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-lib_called-twice.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-lib_in-loop.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-lib_in-loop.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush.c
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush.c
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_no-writeout.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_no-writeout.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_shared-call-after.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_shared-call-after.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_shared-call-before-after.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_shared-call-before-after.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_shared-call-before.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main-gcov-flush_shared-call-before.c.gcov
> > compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main.c.gcov
> > - copied unchanged from r336473, compiler-rt/trunk/test/profile/Inputs/instrprof-shared-main.c.gcov
> > compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test
> > - copied, changed from r336473, compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test
> > compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test
> > - copied, changed from r336473, compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test
> > Modified:
> > compiler-rt/trunk/lib/profile/GCDAProfiling.c
> > compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main.c
> > compiler-rt/trunk/test/profile/instrprof-dlopen-dlclose-gcov.test
> >
> > Modified: compiler-rt/trunk/lib/profile/GCDAProfiling.c
> > URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/profile/GCDAProfiling.c?rev=336678&r1=336677&r2=336678&view=diff
> > ==============================================================================
> > --- compiler-rt/trunk/lib/profile/GCDAProfiling.c (original)
> > +++ compiler-rt/trunk/lib/profile/GCDAProfiling.c Tue Jul 10 07:12:03 2018
> > @@ -86,31 +86,76 @@ static uint64_t file_size = 0;
> > static int new_file = 0;
> > static int fd = -1;
> >
> > -/*
> > - * A list of functions to write out the data.
> > - */
> > -typedef void (*writeout_fn)();
> > +typedef void (*fn_ptr)();
> >
> > -struct writeout_fn_node {
> > - writeout_fn fn;
> > - struct writeout_fn_node *next;
> > +typedef void* dynamic_object_id;
> > +// The address of this variable identifies a given dynamic object.
> > +static dynamic_object_id current_id;
> > +#define CURRENT_ID (¤t_id)
> > +
> > +struct fn_node {
> > + dynamic_object_id id;
> > + fn_ptr fn;
> > + struct fn_node* next;
> > };
> >
> > -static struct writeout_fn_node *writeout_fn_head = NULL;
> > -static struct writeout_fn_node *writeout_fn_tail = NULL;
> > +struct fn_list {
> > + struct fn_node *head, *tail;
> > +};
> >
> > /*
> > - * A list of flush functions that our __gcov_flush() function should call.
> > + * A list of functions to write out the data, shared between all dynamic objects.
> > */
> > -typedef void (*flush_fn)();
> > +struct fn_list writeout_fn_list;
> >
> > -struct flush_fn_node {
> > - flush_fn fn;
> > - struct flush_fn_node *next;
> > -};
> > +/*
> > + * A list of flush functions that our __gcov_flush() function should call, shared between all dynamic objects.
> > + */
> > +struct fn_list flush_fn_list;
> > +
> > +static void fn_list_insert(struct fn_list* list, fn_ptr fn) {
> > + struct fn_node* new_node = malloc(sizeof(struct fn_node));
> > + new_node->fn = fn;
> > + new_node->next = NULL;
> > + new_node->id = CURRENT_ID;
> > +
> > + if (!list->head) {
> > + list->head = list->tail = new_node;
> > + } else {
> > + list->tail->next = new_node;
> > + list->tail = new_node;
> > + }
> > +}
> > +
> > +static void fn_list_remove(struct fn_list* list) {
> > + struct fn_node* curr = list->head;
> > + struct fn_node* prev = NULL;
> > + struct fn_node* next = NULL;
> > +
> > + while (curr) {
> > + next = curr->next;
> > +
> > + if (curr->id == CURRENT_ID) {
> > + if (curr == list->head) {
> > + list->head = next;
> > + }
> > +
> > + if (curr == list->tail) {
> > + list->tail = prev;
> > + }
> > +
> > + if (prev) {
> > + prev->next = next;
> > + }
> > +
> > + free(curr);
> > + } else {
> > + prev = curr;
> > + }
> >
> > -static struct flush_fn_node *flush_fn_head = NULL;
> > -static struct flush_fn_node *flush_fn_tail = NULL;
> > + curr = next;
> > + }
> > +}
> >
> > static void resize_write_buffer(uint64_t size) {
> > if (!new_file) return;
> > @@ -403,6 +448,7 @@ void llvm_gcda_summary_info() {
> > const uint32_t obj_summary_len = 9; /* Length for gcov compatibility. */
> > uint32_t i;
> > uint32_t runs = 1;
> > + static uint32_t run_counted = 0; // We only want to increase the run count once.
> > uint32_t val = 0;
> > uint64_t save_cur_pos = cur_pos;
> >
> > @@ -429,7 +475,9 @@ void llvm_gcda_summary_info() {
> >
> > read_32bit_value(); /* checksum, unused */
> > read_32bit_value(); /* num, unused */
> > - runs += read_32bit_value(); /* Add previous run count to new counter. */
> > + uint32_t prev_runs = read_32bit_value();
> > + /* Add previous run count to new counter, if not already counted before. */
> > + runs = run_counted ? prev_runs : prev_runs + 1;
> > }
> >
> > cur_pos = save_cur_pos;
> > @@ -447,6 +495,8 @@ void llvm_gcda_summary_info() {
> > write_bytes("\0\0\0\xa3", 4); /* tag indicates 1 program */
> > write_32bit_value(0); /* 0 length */
> >
> > + run_counted = 1;
> > +
> > #ifdef DEBUG_GCDAPROFILING
> > fprintf(stderr, "llvmgcda: %u runs\n", runs);
> > #endif
> > @@ -479,61 +529,34 @@ void llvm_gcda_end_file() {
> > }
> >
> > COMPILER_RT_VISIBILITY
> > -void llvm_register_writeout_function(writeout_fn fn) {
> > - struct writeout_fn_node *new_node = malloc(sizeof(struct writeout_fn_node));
> > - new_node->fn = fn;
> > - new_node->next = NULL;
> > -
> > - if (!writeout_fn_head) {
> > - writeout_fn_head = writeout_fn_tail = new_node;
> > - } else {
> > - writeout_fn_tail->next = new_node;
> > - writeout_fn_tail = new_node;
> > - }
> > +void llvm_register_writeout_function(fn_ptr fn) {
> > + fn_list_insert(&writeout_fn_list, fn);
> > }
> >
> > COMPILER_RT_VISIBILITY
> > void llvm_writeout_files(void) {
> > - struct writeout_fn_node *curr = writeout_fn_head;
> > + struct fn_node *curr = writeout_fn_list.head;
> >
> > while (curr) {
> > - curr->fn();
> > + if (curr->id == CURRENT_ID) {
> > + curr->fn();
> > + }
> > curr = curr->next;
> > }
> > }
> >
> > COMPILER_RT_VISIBILITY
> > void llvm_delete_writeout_function_list(void) {
> > - while (writeout_fn_head) {
> > - struct writeout_fn_node *node = writeout_fn_head;
> > - writeout_fn_head = writeout_fn_head->next;
> > - free(node);
> > - }
> > -
> > - writeout_fn_head = writeout_fn_tail = NULL;
> > + fn_list_remove(&writeout_fn_list);
> > }
> >
> > COMPILER_RT_VISIBILITY
> > -void llvm_register_flush_function(flush_fn fn) {
> > - struct flush_fn_node *new_node = malloc(sizeof(struct flush_fn_node));
> > - new_node->fn = fn;
> > - new_node->next = NULL;
> > -
> > - if (!flush_fn_head) {
> > - flush_fn_head = flush_fn_tail = new_node;
> > - } else {
> > - flush_fn_tail->next = new_node;
> > - flush_fn_tail = new_node;
> > - }
> > +void llvm_register_flush_function(fn_ptr fn) {
> > + fn_list_insert(&flush_fn_list, fn);
> > }
> >
> > -// __gcov_flush is hidden. When called in a .so file,
> > -// it dumps profile data of the calling .so file.
> > -// If a main program needs to dump profile data of each linked
> > -// .so files, it should use dlsym to find and call llvm_gcov_flush.
> > -COMPILER_RT_VISIBILITY
> > void __gcov_flush() {
> > - struct flush_fn_node *curr = flush_fn_head;
> > + struct fn_node* curr = flush_fn_list.head;
> >
> > while (curr) {
> > curr->fn();
> > @@ -541,25 +564,13 @@ void __gcov_flush() {
> > }
> > }
> >
> > -// llvm_gcov_flush is not hidden for a program to use dlsym to
> > -// find and call for any linked .so file.
> > -void llvm_gcov_flush() {
> > - __gcov_flush();
> > -}
> > -
> > COMPILER_RT_VISIBILITY
> > void llvm_delete_flush_function_list(void) {
> > - while (flush_fn_head) {
> > - struct flush_fn_node *node = flush_fn_head;
> > - flush_fn_head = flush_fn_head->next;
> > - free(node);
> > - }
> > -
> > - flush_fn_head = flush_fn_tail = NULL;
> > + fn_list_remove(&flush_fn_list);
> > }
> >
> > COMPILER_RT_VISIBILITY
> > -void llvm_gcov_init(writeout_fn wfn, flush_fn ffn) {
> > +void llvm_gcov_init(fn_ptr wfn, fn_ptr ffn) {
> > static int atexit_ran = 0;
> >
> > if (wfn)
> >
> > Modified: compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main.c
> > URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main.c?rev=336678&r1=336677&r2=336678&view=diff
> > ==============================================================================
> > --- compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main.c (original)
> > +++ compiler-rt/trunk/test/profile/Inputs/instrprof-dlopen-dlclose-main.c Tue Jul 10 07:12:03 2018
> > @@ -10,6 +10,12 @@ int main(int argc, char *argv[]) {
> > return EXIT_FAILURE;
> > }
> >
> > + void (*func)(void) = (void (*)(void))dlsym(f1_handle, "func");
> > + if (func == NULL) {
> > + fprintf(stderr, "unable to lookup symbol 'func': %s\n", dlerror());
> > + return EXIT_FAILURE;
> > + }
> > +
> > dlerror();
> > void *f2_handle = dlopen("func2.shared", RTLD_LAZY | RTLD_GLOBAL);
> > if (f2_handle == NULL) {
> > @@ -17,31 +23,44 @@ int main(int argc, char *argv[]) {
> > return EXIT_FAILURE;
> > }
> >
> > - dlerror();
> > - void (*gcov_flush)() = (void (*)())dlsym(f1_handle, "__gcov_flush");
> > - if (gcov_flush != NULL || dlerror() == NULL) {
> > - fprintf(stderr, "__gcov_flush should not be visible in func.shared'\n");
> > + void (*func2)(void) = (void (*)(void))dlsym(f2_handle, "func2");
> > + if (func2 == NULL) {
> > + fprintf(stderr, "unable to lookup symbol 'func2': %s\n", dlerror());
> > + return EXIT_FAILURE;
> > + }
> > + func2();
> > +
> > +#ifdef USE_LIB3
> > + void *f3_handle = dlopen("func3.shared", RTLD_LAZY | RTLD_GLOBAL);
> > + if (f3_handle == NULL) {
> > + fprintf(stderr, "unable to open 'func3.shared': %s\n", dlerror());
> > + return EXIT_FAILURE;
> > + }
> > +
> > + void (*func3)(void) = (void (*)(void))dlsym(f3_handle, "func3");
> > + if (func3 == NULL) {
> > + fprintf(stderr, "unable to lookup symbol 'func3': %s\n", dlerror());
> > return EXIT_FAILURE;
> > }
> > + func3();
> > +#endif
> >
> > dlerror();
> > - void (*f1_flush)() = (void (*)())dlsym(f1_handle, "llvm_gcov_flush");
> > - if (f1_flush == NULL) {
> > - fprintf(stderr, "unable to find llvm_gcov_flush in func.shared': %s\n", dlerror());
> > + void (*gcov_flush1)() = (void (*)())dlsym(f1_handle, "__gcov_flush");
> > + if (gcov_flush1 == NULL) {
> > + fprintf(stderr, "unable to find __gcov_flush in func.shared': %s\n", dlerror());
> > return EXIT_FAILURE;
> > }
> > - f1_flush();
> >
> > dlerror();
> > - void (*f2_flush)() = (void (*)())dlsym(f2_handle, "llvm_gcov_flush");
> > - if (f2_flush == NULL) {
> > - fprintf(stderr, "unable to find llvm_gcov_flush in func2.shared': %s\n", dlerror());
> > + void (*gcov_flush2)() = (void (*)())dlsym(f2_handle, "__gcov_flush");
> > + if (gcov_flush2 == NULL) {
> > + fprintf(stderr, "unable to find __gcov_flush in func2.shared': %s\n", dlerror());
> > return EXIT_FAILURE;
> > }
> > - f2_flush();
> >
> > - if (f1_flush == f2_flush) {
> > - fprintf(stderr, "Same llvm_gcov_flush found in func.shared and func2.shared\n");
> > + if (gcov_flush1 == gcov_flush2) {
> > + fprintf(stderr, "Same __gcov_flush found in func.shared and func2.shared\n");
> > return EXIT_FAILURE;
> > }
> >
> > @@ -51,6 +70,17 @@ int main(int argc, char *argv[]) {
> > return EXIT_FAILURE;
> > }
> >
> > + func();
> > +
> > + int g1 = 0;
> > + int g2 = 0;
> > + int n = 10;
> > +
> > + if (n % 5 == 0)
> > + g1++;
> > + else
> > + g2++;
> > +
> > return EXIT_SUCCESS;
> > }
> >
> >
> > Modified: compiler-rt/trunk/test/profile/instrprof-dlopen-dlclose-gcov.test
> > URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/profile/instrprof-dlopen-dlclose-gcov.test?rev=336678&r1=336677&r2=336678&view=diff
> > ==============================================================================
> > --- compiler-rt/trunk/test/profile/instrprof-dlopen-dlclose-gcov.test (original)
> > +++ compiler-rt/trunk/test/profile/instrprof-dlopen-dlclose-gcov.test Tue Jul 10 07:12:03 2018
> > @@ -1,6 +1,33 @@
> > +# This test fails on powerpc64 BE and s390x (https://bugs.llvm.org/show_bug.cgi?id=38121).
> > +XFAIL: s390x || powerpc64-unknown-linux-gnu
> > +
> > RUN: mkdir -p %t.d
> > -RUN: %clang --coverage -o %t.d/func.shared -fPIC -shared %S/Inputs/instrprof-dlopen-func.c
> > -RUN: %clang --coverage -o %t.d/func2.shared -fPIC -shared %S/Inputs/instrprof-dlopen-func2.c
> > +RUN: cd %t.d
> > +
> > +RUN: %clang --coverage -o func.shared -fPIC -shared %S/Inputs/instrprof-dlopen-func.c
> > +RUN: %clang --coverage -o func2.shared -fPIC -shared %S/Inputs/instrprof-dlopen-func2.c
> > +RUN: %clang --coverage -o func3.shared -fPIC -shared %S/Inputs/instrprof-dlopen-func3.c
> > RUN: %clang --coverage -o %t -fPIC -rpath %t.d %S/Inputs/instrprof-dlopen-dlclose-main.c
> >
> > +# Test with two dlopened libraries.
> > +RUN: %run %t
> > +RUN: llvm-cov gcov instrprof-dlopen-dlclose-main.gcda
> > +RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-dlopen-dlclose-main.c.gcov %S/Inputs/instrprof-dlopen-dlclose-main.c.gcov
> > +RUN: llvm-cov gcov instrprof-dlopen-func.gcda
> > +RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-dlopen-func.c.gcov %S/Inputs/instrprof-dlopen-func.c.gcov
> > +RUN: llvm-cov gcov instrprof-dlopen-func2.gcda
> > +RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-dlopen-func2.c.gcov %S/Inputs/instrprof-dlopen-func2.c.gcov
> > +RUN: rm instrprof-dlopen-dlclose-main.gcda instrprof-dlopen-func.gcda instrprof-dlopen-func2.gcda
> > +
> > +# Test with three dlopened libraries.
> > +RUN: %clang -DUSE_LIB3 --coverage -o %t -fPIC -rpath %t.d %S/Inputs/instrprof-dlopen-dlclose-main.c
> > RUN: %run %t
> > +RUN: llvm-cov gcov instrprof-dlopen-dlclose-main.gcda
> > +RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-dlopen-dlclose-main.c.gcov %S/Inputs/instrprof-dlopen-dlclose-main_three-libs.c.gcov
> > +RUN: llvm-cov gcov instrprof-dlopen-func.gcda
> > +RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-dlopen-func.c.gcov %S/Inputs/instrprof-dlopen-func.c.gcov
> > +RUN: llvm-cov gcov instrprof-dlopen-func2.gcda
> > +RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-dlopen-func2.c.gcov %S/Inputs/instrprof-dlopen-func2.c.gcov
> > +RUN: llvm-cov gcov instrprof-dlopen-func3.gcda
> > +RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-dlopen-func2.c.gcov %S/Inputs/instrprof-dlopen-func3.c.gcov
> > +RUN: rm instrprof-dlopen-dlclose-main.gcda instrprof-dlopen-func.gcda instrprof-dlopen-func2.gcda instrprof-dlopen-func3.gcda
> >
> > Copied: compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test (from r336473, compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test)
> > URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test?p2=compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test&p1=compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test&r1=336473&r2=336678&rev=336678&view=diff
> > ==============================================================================
> > --- compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test (original)
> > +++ compiler-rt/trunk/test/profile/instrprof-gcov-two-objects.test Tue Jul 10 07:12:03 2018
> > @@ -1,3 +1,6 @@
> > +# This test fails on powerpc64 BE and s390x (https://bugs.llvm.org/show_bug.cgi?id=38121).
> > +XFAIL: s390x || powerpc64-unknown-linux-gnu
> > +
> > RUN: mkdir -p %t.d
> > RUN: cd %t.d
> >
> >
> > Copied: compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test (from r336473, compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test)
> > URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test?p2=compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test&p1=compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test&r1=336473&r2=336678&rev=336678&view=diff
> > ==============================================================================
> > --- compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test (original)
> > +++ compiler-rt/trunk/test/profile/instrprof-shared-gcov-flush.test Tue Jul 10 07:12:03 2018
> > @@ -1,3 +1,6 @@
> > +# This test fails on Mac, powerpc64 BE and s390x (https://bugs.llvm.org/show_bug.cgi?id=38121).
> > +XFAIL: darwin || s390x || powerpc64-unknown-linux-gnu
> > +
> > RUN: mkdir -p %t.d
> > RUN: cd %t.d
> >
> >
> >
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> >
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