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* [gcc r12-4996] gcov-profile: Fix -fcompare-debug with -fprofile-generate [PR100520]
@ 2021-11-08 11:52 Martin Liska
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From: Martin Liska @ 2021-11-08 11:52 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:7553bd35c876efaf8ab0b6661a6102822b99e6e3
commit r12-4996-g7553bd35c876efaf8ab0b6661a6102822b99e6e3
Author: Martin Liska <mliska@suse.cz>
Date: Fri Nov 5 16:50:06 2021 +0100
gcov-profile: Fix -fcompare-debug with -fprofile-generate [PR100520]
PR gcov-profile/100520
gcc/ChangeLog:
* coverage.c (coverage_compute_profile_id): Strip .gk when
compare debug is used.
* system.h (endswith): New function.
gcc/testsuite/ChangeLog:
* gcc.dg/pr100520.c: New test.
Diff:
---
gcc/coverage.c | 7 +++++--
gcc/system.h | 13 +++++++++++++
gcc/testsuite/gcc.dg/pr100520.c | 5 +++++
3 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/gcc/coverage.c b/gcc/coverage.c
index 4467f1eaa5c..4daa3f9fc30 100644
--- a/gcc/coverage.c
+++ b/gcc/coverage.c
@@ -571,8 +571,11 @@ coverage_compute_profile_id (struct cgraph_node *n)
if (!use_name_only && first_global_object_name)
chksum = coverage_checksum_string
(chksum, first_global_object_name);
- chksum = coverage_checksum_string
- (chksum, aux_base_name);
+ char *base_name = xstrdup (aux_base_name);
+ if (endswith (base_name, ".gk"))
+ base_name[strlen (base_name) - 3] = '\0';
+ chksum = coverage_checksum_string (chksum, base_name);
+ free (base_name);
}
/* Non-negative integers are hopefully small enough to fit in all targets.
diff --git a/gcc/system.h b/gcc/system.h
index adde3e264b6..4ac656c9c3c 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -1305,4 +1305,17 @@ startswith (const char *str, const char *prefix)
return strncmp (str, prefix, strlen (prefix)) == 0;
}
+/* Return true if STR string ends with SUFFIX. */
+
+static inline bool
+endswith (const char *str, const char *suffix)
+{
+ size_t str_len = strlen (str);
+ size_t suffix_len = strlen (suffix);
+ if (str_len < suffix_len)
+ return false;
+
+ return memcmp (str + str_len - suffix_len, suffix, suffix_len) == 0;
+}
+
#endif /* ! GCC_SYSTEM_H */
diff --git a/gcc/testsuite/gcc.dg/pr100520.c b/gcc/testsuite/gcc.dg/pr100520.c
new file mode 100644
index 00000000000..60f79c2b888
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr100520.c
@@ -0,0 +1,5 @@
+/* PR gcov-profile/100520 */
+/* { dg-do compile } */
+/* { dg-options "-fcompare-debug -fprofile-generate" } */
+
+static int f() {}
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