[PATCH] Test for profiling support (_mcount/gprof)

[Andreas Schwab]

On Okt 05 2017, Florian Weimer <fweimer@redhat.com> wrote:

> On 08/16/2017 10:09 AM, Florian Weimer wrote:
>> tst-gmon: Build with -fno-omit-frame-pointer
>>
>> If glibc is built with -fomit-frame-pointer to undo the effect of
>> configuring GCC with --enable-frame-pointer, using -pg by itself results
>> in a build failure:
>>
>> gcc: error: -pg and -fomit-frame-pointer are incompatible
>>
>> 2017-08-16  Florian Weimer<fweimer@redhat.com>
>>
>> 	* gmon/Makefile (CFLAGS-tst-gmon.c): Add -fno-omit-frame-pointer.
>>
>> diff --git a/gmon/Makefile b/gmon/Makefile
>> index 39f11acec2..62d96543ff 100644
>> --- a/gmon/Makefile
>> +++ b/gmon/Makefile
>> @@ -38,7 +38,7 @@ endif
>>   # The mcount code won't work without a frame pointer.
>>   CFLAGS-mcount.c := -fno-omit-frame-pointer
>>   -CFLAGS-tst-gmon.c := -pg
>> +CFLAGS-tst-gmon.c := -fno-omit-frame-pointer -pg
>>   LDFLAGS-tst-gmon := $(no-pie-ldflag)
>>   CRT-tst-gmon := $(csu-objpfx)gcrt1.o
>>   tst-gmon-ENV := GMON_OUT_PREFIX=$(objpfx)tst-gmon.data
>
> Is this patch still needed?

Sure.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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