[Bug gprof/32224] Call graph not displayed for coff-go32 (no function-flag on symbols)

[jwjagersma at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=32224

--- Comment #1 from jwjagersma at gmail dot com ---
Created attachment 15724
  --> https://sourceware.org/bugzilla/attachment.cgi?id=15724&action=edit
proposed patch

Attached patch restores the call graph.  But maybe these function-symbols are
expected elsewhere too, not sure.  I see the associated flag for coff is
DT_FCN,
but this is only used in gas/config/tc-ppc.c.

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[Bug binutils/18973] Support arbitrary DOS stubs in coff-go32-exe and pei-* formats

[jwjagersma at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18973

jwjagersma at gmail dot com changed:

   What|Removed |Added

 CC||jwjagersma at gmail dot com

--- Comment #1 from jwjagersma at gmail dot com ---
Old report but I just stumbled upon it.  For the record: binutils/bfd supports
arbitrary-size stubs now for coff-go32-exe (since v2.35).  I don't know the
status for PE.

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[Bug gprof/32224] New: Call graph not displayed for coff-go32 (no function-flag on symbols)

[jwjagersma at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=32224

Bug ID: 32224
   Summary: Call graph not displayed for coff-go32 (no
function-flag on symbols)
   Product: binutils
   Version: 2.43.1
Status: UNCONFIRMED
  Severity: normal
  Priority: P2
 Component: gprof
  Assignee: unassigned at sourceware dot org
  Reporter: jwjagersma at gmail dot com
  Target Milestone: ---

I'm looking to fix djgpp's profiler support, which is suffering from some
bit-rot.  I fixed some issues with mcount in libc, but still don't get a call
graph (all samples are ).

Stepping through gprof, I find that none of the symbols have the 'is_func' flag
set, and it makes cg_tally() drop all the arc entries.

>From what I can tell then, 'core_has_func_syms' (in
core_create_function_syms(),
gprof/corefile.c) should be 0 for coff-go32.  Or, the assembler should emit
a function flag on .text symbols.

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