gmon: improve mcount overflow handling [BZ# 27576]

[thirdparty/glibc.git] / gmon / Makefile

diff --git a/gmon/Makefile b/gmon/Makefile
index 4dd5adb80b817fe5f14ff7777d2e097625eb4627..83837dd68951babbae4fd1f75c7b50dad98dc7fb 100644 (file)
--- a/gmon/Makefile
+++ b/gmon/Makefile
@@ -25,7 +25,7 @@ include ../Makeconfig
 headers        := sys/gmon.h sys/gmon_out.h sys/profil.h
 routines := gmon mcount profil sprofil prof-freq
 
-tests  = tst-sprofil tst-gmon
+tests  = tst-sprofil tst-gmon tst-mcount-overflow
 ifeq ($(build-profile),yes)
 tests  += tst-profile-static
 tests-static   += tst-profile-static
@@ -56,6 +56,18 @@ ifeq ($(run-built-tests),yes)
 tests-special += $(objpfx)tst-gmon-gprof.out
 endif
 
+CFLAGS-tst-mcount-overflow.c := -fno-omit-frame-pointer -pg
+tst-mcount-overflow-no-pie = yes
+CRT-tst-mcount-overflow := $(csu-objpfx)g$(start-installed-name)
+# Intentionally use invalid config where maxarcs<minarcs to check warning is printed
+tst-mcount-overflow-ENV := GMON_OUT_PREFIX=$(objpfx)tst-mcount-overflow.data \
+                           GLIBC_TUNABLES=glibc.gmon.minarcs=51:glibc.gmon.maxarcs=50
+# Send stderr into output file because we make sure expected messages are printed
+tst-mcount-overflow-ARGS := 2>&1 1>/dev/null | cat
+ifeq ($(run-built-tests),yes)
+tests-special += $(objpfx)tst-mcount-overflow-check.out
+endif
+
 CFLAGS-tst-gmon-static.c := $(PIE-ccflag) -fno-omit-frame-pointer -pg
 CRT-tst-gmon-static := $(csu-objpfx)g$(static-start-installed-name)
 tst-gmon-static-no-pie = yes
@@ -103,6 +115,14 @@ $(objpfx)tst-gmon.out: clean-tst-gmon-data
 clean-tst-gmon-data:
        rm -f $(objpfx)tst-gmon.data.*
 
+$(objpfx)tst-mcount-overflow.o: clean-tst-mcount-overflow-data
+clean-tst-mcount-overflow-data:
+       rm -f $(objpfx)tst-mcount-overflow.data.*
+
+$(objpfx)tst-mcount-overflow-check.out: tst-mcount-overflow-check.sh $(objpfx)tst-mcount-overflow.out
+       $(SHELL) $< $(objpfx)tst-mcount-overflow > $@; \
+       $(evaluate-test)
+
 $(objpfx)tst-gmon-gprof.out: tst-gmon-gprof.sh $(objpfx)tst-gmon.out
        $(SHELL) $< $(GPROF) $(objpfx)tst-gmon $(objpfx)tst-gmon.data.* > $@; \
        $(evaluate-test)