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authorAndrew Burgess <andrew.burgess@embecosm.com>2021-04-15 18:30:57 +0100
committerAndrew Burgess <andrew.burgess@embecosm.com>2021-04-19 18:28:57 +0100
commitf5dc2ee39d6324d3979e3dcea5ee1d718c516a31 (patch)
tree4256bbe19ebc90b08a744e8cbf7d9674bf9c99da
parent229597a129f62d5e8a101f1eed95489e2399f741 (diff)
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gdb: use compiled_regex instead of std::regex
In GDB we should be using compiled_regex instead of std::regex. Replace one use in producer.c. There should be no user visible changes after this commit. gdb/ChangeLog: * producer.c: Replace 'regex' include with 'gdb_regex.h'. (producer_is_icc): Replace use of std::regex with gdb's compiled_regex.
-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/producer.c18
2 files changed, 15 insertions, 9 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 678ad27..a7f079e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2021-04-19 Andrew Burgess <andrew.burgess@embecosm.com>
+
+ * producer.c: Replace 'regex' include with 'gdb_regex.h'.
+ (producer_is_icc): Replace use of std::regex with gdb's
+ compiled_regex.
+
2021-04-17 Tom Tromey <tom@tromey.com>
PR gdb/23743:
diff --git a/gdb/producer.c b/gdb/producer.c
index 591509f..cdfd80d 100644
--- a/gdb/producer.c
+++ b/gdb/producer.c
@@ -20,7 +20,7 @@
#include "defs.h"
#include "producer.h"
#include "gdbsupport/selftest.h"
-#include <regex>
+#include "gdb_regex.h"
/* See producer.h. */
@@ -91,9 +91,8 @@ producer_is_icc_ge_19 (const char *producer)
bool
producer_is_icc (const char *producer, int *major, int *minor)
{
- std::regex i_re ("Intel\\(R\\)");
- std::cmatch i_m;
- if ((producer == nullptr) || !std::regex_search (producer, i_m, i_re))
+ compiled_regex i_re ("Intel(R)", 0, "producer_is_icc");
+ if (producer == nullptr || i_re.exec (producer, 0, nullptr, 0) != 0)
return false;
/* Prepare the used fields. */
@@ -106,12 +105,13 @@ producer_is_icc (const char *producer, int *major, int *minor)
*minor = 0;
*major = 0;
- std::regex re ("[0-9]+\\.[0-9]+");
- std::cmatch version;
-
- if (std::regex_search (producer, version, re))
+ compiled_regex re ("[0-9]+\\.[0-9]+", REG_EXTENDED, "producer_is_icc");
+ regmatch_t version[1];
+ if (re.exec (producer, ARRAY_SIZE (version), version, 0) == 0
+ && version[0].rm_so != -1)
{
- sscanf (version.str ().c_str (), "%d.%d", major, minor);
+ const char *version_str = producer + version[0].rm_so;
+ sscanf (version_str, "%d.%d", major, minor);
return true;
}