[S] Change in coreboot[master]: util/cbmem: Add REG_NEWLINE flag to fix matching pattern

[Konrad Adamczyk (Code Review)]

Konrad Adamczyk has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74742 )

Change subject: util/cbmem: Add REG_NEWLINE flag to fix matching pattern
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util/cbmem: Add REG_NEWLINE flag to fix matching pattern

Match-any-character operators (eg. ".*") shall not match newline
characters for BANNER_REGEX, since given regular expression
matches newline explicitly.

Add REG_NEWLINE flag to `regcomp` call.

BUG=b:278718871
TEST=Boot firmware on skyrim, reboot.
Run `cbmem -2`.
`cbmem -2` returns second-to-last boot log.

Change-Id: I9e924349ead0fa7eea8b9ad5161138a4c4946ade
Signed-off-by: Konrad Adamczyk 
---
M util/cbmem/cbmem.c
1 file changed, 22 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/42/74742/1

diff --git a/util/cbmem/cbmem.c b/util/cbmem/cbmem.c
index c0b39ea..060f88c 100644
--- a/util/cbmem/cbmem.c
+++ b/util/cbmem/cbmem.c
@@ -1001,7 +1001,7 @@
    	for (size_t i = 0; !cursor && i < ARRAY_SIZE(regex); i++) {
    		regex_t re;
    		regmatch_t match;
-			int res = regcomp(&re, regex[i], REG_EXTENDED);
+			int res = regcomp(&re, regex[i], REG_EXTENDED | REG_NEWLINE);
    		assert(res == 0);

/* Keep looking for matches so we find the last one. */