[llvm-bugs] [Bug 28075] New: Need a way to specify section properties (flags, type, etc)

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28075

            Bug ID: 28075
           Summary: Need a way to specify section properties (flags, type,
                    etc)
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Core LLVM classes
          Assignee: unassignedbugs at nondot.org
          Reporter: rafael.espindola at gmail.com
                CC: david.majnemer at gmail.com, jmuizelaar at mozilla.com,
                    llvm-bugs at lists.llvm.org
    Classification: Unclassified

This is based on "David Majnemer"'s proposal

Right now we have only

@foo = constant i64 42, section "bar"

and it is up to llvm to guess the flags and type.

we should have something like


$asec = section "bar", alloc, write [,flag]*
@foo = constant i64 42, section $asec

The possible flags would be at least: alloc, exec, write, thread, nobits

note that the name is a property of the section, so it would be possible to
write

$asec = section "bar", alloc
$bsec = section "bar"

this is important for LTO doing the same as a regular link.

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