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Date: Tue, 1 Aug 1995 04:20:13 +0900
From: Takeshi WATANABE <watanabe@himawari.earth.s.kobe-u.ac.jp>
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Subject: gnu/644: f77 -r8
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>Number:         644
>Category:       gnu
>Synopsis:       executable file that compiled by "f77 -r8" makes core dump.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jul 31 12:30:00 PDT 1995
>Last-Modified:
>Originator:     Takeshi WATANABE
>Organization:
Kobe University,  Kobe,  Japan.
>Release:        FreeBSD 2.0-BUILT-19950603 i386
>Environment:
FreeBSD-2.0.5-RELEASE original.
>Description:

  Executable file that compiled by "f77 -r8" makes core dump. ("f77"
without "-r8" option makes no problem)

	% f77 -r8 test.f
	% ./a.out
	Segmentation fault (core dumped)

# "-r8" is meaningful option for "f2c" command.  "f77" calls "f2c".

In spite of this, "f77 -c -r8" makes no problem.

	% f77 -c -r8 test.f
	% f77 test.o
	% ./a.out
(This is OK.)

  I tested "f77" command with "-v" option.  It was found that "f77" command
(without "-r8") calls finally "ld" command with "-e start" option.  However,
"f77 -r8" calls "ld" command without "-e start" option.

  I think that this feature is meaningful for "f77 -r".  However, it's
maybe meaningless for "f77 -r8".
  So, the condition for "-e start" option may change from "!r*" to "!r".

>How-To-Repeat:

  Always on FreeBSD-2.0(.5)-RELEASE.  Never on FreeBSD-1.1.5.1-RELEASE.

>Fix:

*** /usr/src/gnu/usr.bin/cc/include/tm.h.orig   Mon Nov  7 06:32:11 1994
--- /usr/src/gnu/usr.bin/cc/include/tm.h        Fri Jul 28 07:25:41 1995
***************
*** 42,48 ****
  #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
  
  #define LINK_SPEC \
!   "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*} \
     %{p:-Bstatic} %{pg:-Bstatic} %{Z}"
  
  /* This goes away when the math emulator is fixed.  */
--- 42,48 ----
  #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
  
  #define LINK_SPEC \
!   "%{!nostdlib:%{!r:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*} \
     %{p:-Bstatic} %{pg:-Bstatic} %{Z}"
  
  /* This goes away when the math emulator is fixed.  */

>Audit-Trail:
>Unformatted: