Your message dated Tue, 20 Sep 2016 09:54:11 +0000 with message-id <[email protected]> and subject line Bug#838315: Removed package(s) from unstable has caused the Debian Bug report #812587, regarding gnat: Fail to reconize types with an unrejected static size attribute as compile time known size type. to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 812587: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812587 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: gnat Version: 4.9 Severity: normal Tags: upstream Dear Maintainer, As said in the bug title gnat fail to reconize some compile time known size type as it in some circumstances. Please see below a minimal test case striped down form a real case : procedure Foo is type Unbiased_T is range 0 .. 4 with Size => 3; pragma Warnings (Off, "size clause forces biased representation for ""Biased_T"""); type Biased_T is range 1 .. 4 with Size => 2; pragma Warnings (On, "size clause forces biased representation for ""Biased_T"""); type Biased_Or_Unbiased_T (Biased : Boolean) is record case Biased is when True => Biased_Value : Biased_T; when False => Unbiased_Value : Unbiased_T; end case; end record with Unchecked_Union, Convention => Ada, Size => 3; for Biased_Or_Unbiased_T use record Biased_Value at 0 range 1 .. 2; Unbiased_Value at 0 range 0 .. 2; end record; type Hardware_Register_T (Value_1_Is_Biased : Boolean; Value_2_Is_Biased : Boolean) is record Value_1 : Biased_Or_Unbiased_T (Value_2_Is_Biased); Value_2 : Biased_Or_Unbiased_T (Value_2_Is_Biased); end record with Size => 8, Volatile; for Hardware_Register_T use record Value_1 at 0 range 0 .. 2; Value_2 at 0 range 3 .. 5; Value_1_Is_Biased at 0 range 6 .. 6; Value_2_Is_Biased at 0 range 7 .. 7; end record; begin null; end Foo; When invoking gnatmake as this : gnatmake foo.adb I get this output : gcc-4.9 -c foo.adb foo.adb:38:11: size clause not allowed for variable length type foo.adb:42:28: component clause not allowed for variable length component foo.adb:43:28: component clause not allowed for variable length component gnatmake: "foo.adb" compilation error But none of the types here are variable length. By some little investigation I have found that all of the 3 reported errors cames from the same place in the compiler code. The function Size_Known_At_Compile_Time return False and should return True in the file freeze.adb at line 2832 and line 5228. I expected at least any type with a static unrejected size attribute or clause to be considered having a Size_Known_At_Compile_Time. The function Size_Known_At_Compile_Time itself defined in einfo.adb line 2892 just return a flag which seem to only be manipulated by the procedure Set_Size_Known_At_Compile_Time also define in einfo.adb at line 5655. I suspect a call to the procedure Set_Size_Known_At_Compile_Time should be added somwhere in freese.adb when there is a size clause or attribute for a type but there I am at my limit in my understanding of the compiler code. I suspect this bug to be present in all architecture and I can at least confirme it on gnat-4.9 for x86 and powerpc, gnat-4.6 on x86 and avr-ada gnat-4.7. In the hope this bug report will help. Henri GEIST -- System Information: Debian Release: 8.2 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: i386 (i686) Kernel: Linux 3.16.0-4-686-pae (SMP w/2 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gnat depends on: ii gnat-4.9 4.9.2-1 Versions of packages gnat recommends: ii ada-reference-manual-2012 1:2012.2-3 ii gnat-gps 5.3dfsg-1 gnat suggests no packages. -- no debconf information
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--- Begin Message ---Version: 4.9.4-3+rm Dear submitter, as the package gnat-4.9 has just been removed from the Debian archive unstable we hereby close the associated bug reports. We are sorry that we couldn't deal with your issue properly. For details on the removal, please see https://bugs.debian.org/838315 The version of this package that was in Debian prior to this removal can still be found using http://snapshot.debian.org/. This message was generated automatically; if you believe that there is a problem with it please contact the archive administrators by mailing [email protected]. Debian distribution maintenance software pp. Chris Lamb (the ftpmaster behind the curtain)
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