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From: "thiago at kde dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/67688] New: [MinGW/Cygwin] Attributes selectany and section cannot be used together
Date: Wed, 23 Sep 2015 00:50:00 -0000	[thread overview]
Message-ID: <bug-67688-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67688

            Bug ID: 67688
           Summary: [MinGW/Cygwin] Attributes selectany and section cannot
                    be used together
           Product: gcc
           Version: 5.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: thiago at kde dot org
  Target Milestone: ---

The following program:

__declspec(selectany) __attribute__((section("foo"))) int i = 0;

Fails to compile with:

error: i causes a section type conflict

The same program compiles with clang -target i386-mingw -fms-compatibility and
produces the assembly:

        .section        foo,"dw",discard,_i
        .globl  _i                      # @i
        .align  4
_i:
        .long   0                       # 0x0

The similar program:

#pragma data_seg("foo")
__declspec(selectany) __declspec(allocate("foo")) int i = 0;

compiles without error with MSVC and produces assembly:
PUBLIC  i
;       COMDAT i
foo     SEGMENT
i       DD      00H
foo     ENDS


             reply	other threads:[~2015-09-23  0:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-23  0:50 thiago at kde dot org [this message]
2015-10-01 18:56 ` [Bug target/67688] " ktietz at gcc dot gnu.org

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