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commit	8590e4d096e4636c9384f7f885b979026861c29f
author	Hans-Peter Nilsson <hp@axis.com>
	Wed, 1 Mar 2023 02:54:03 +0000 (1 03:54 +0100)
committer	Hans-Peter Nilsson <hp@bitrange.com>
	Thu, 2 Mar 2023 01:10:12 +0000 (2 02:10 +0100)
tree	0df324b10d8ed396e63ead39ac6413708253d7a7	tree \| snapshot (tar.gz zip)
parent	854a268dccd7976bfc17584be8f9b2afa6c51fa0	commit \| diff

analyzer: Support errno for newlib

Without this definition, the errno definition for newlib
isn't recognized as such, and these tests fail for newlib
targets:

FAIL: gcc.dg/analyzer/call-summaries-errno.c  (test for warnings, line 16)
FAIL: gcc.dg/analyzer/call-summaries-errno.c (test for excess errors)
FAIL: gcc.dg/analyzer/errno-1.c  (test for warnings, line 20)
FAIL: gcc.dg/analyzer/errno-1.c (test for excess errors)
FAIL: gcc.dg/analyzer/flex-without-call-summaries.c (test for excess errors)
FAIL: gcc.dg/analyzer/isatty-1.c  (test for warnings, line 31)
FAIL: gcc.dg/analyzer/isatty-1.c  (test for warnings, line 35)
FAIL: gcc.dg/analyzer/isatty-1.c  (test for warnings, line 46)
FAIL: gcc.dg/analyzer/isatty-1.c  (test for warnings, line 56)
FAIL: gcc.dg/analyzer/isatty-1.c (test for excess errors)

gcc/analyzer:
* kf.cc (register_known_functions): Add __errno function for newlib.