Bug 12753 - nm -g does not include unique global symbols
Summary: nm -g does not include unique global symbols
Status: RESOLVED FIXED
Alias: None
Product: binutils
Classification: Unclassified
Component: binutils (show other bugs)
Version: 2.21
: P2 normal
Target Milestone: ---
Assignee: unassigned
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-05-12 02:46 UTC by Kim Barrett
Modified: 2011-05-29 04:52 UTC (History)
1 user (show)

See Also:
Host:
Target:
Build:
Last reconfirmed:


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Description Kim Barrett 2011-05-12 02:46:54 UTC
nm --version
-> GNU nm (GNU Binutils; openSUSE 11.4) 2.21

Output from "nm -g" does not include symbols of type "u" = "unique
<em>global</em> symbol".

Also, related documentation bug for nm.  The man page says, regarding
the symbol type:

  "If lowercase, the symbol is local; if uppercase, the symbol is
  global (external)."

That sentence from the documentation appears to have been previously
violated by the "v" and "w", and now again by "u", except the latter
isn't treated as global by the -g flag.
Comment 1 cvs-commit@gcc.gnu.org 2011-05-18 16:35:10 UTC
CVSROOT:	/cvs/src
Module name:	src
Changes by:	nickc@sourceware.org	2011-05-18 16:35:03

Modified files:
	binutils       : ChangeLog nm.c 
	binutils/doc   : binutils.texi 
	binutils/testsuite: ChangeLog 
	binutils/testsuite/binutils-all: nm.exp 
	binutils/testsuite/lib: utils-lib.exp 

Log message:
	PR binutils/12753
	* nm.c (filter_symbols): Treat unique symbols as global symbols.
	* doc/binutils.texi (nm): Mention that some lowercase letters
	actually indicate global symbols.
	
	* lib/utils-lib.exp (run_dump_test): Allow nm as a program.
	* binutils-all/nm.exp: Test running "nm -g" on an object file
	containing a unique symbol.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/ChangeLog.diff?cvsroot=src&r1=1.1799&r2=1.1800
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/nm.c.diff?cvsroot=src&r1=1.66&r2=1.67
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/doc/binutils.texi.diff?cvsroot=src&r1=1.178&r2=1.179
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/testsuite/ChangeLog.diff?cvsroot=src&r1=1.236&r2=1.237
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/testsuite/binutils-all/nm.exp.diff?cvsroot=src&r1=1.5&r2=1.6
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/testsuite/lib/utils-lib.exp.diff?cvsroot=src&r1=1.23&r2=1.24
Comment 2 Nick Clifton 2011-05-18 16:36:52 UTC
Hi Kim,

  Thanks for reporting this bug.  I have checked in a patch to fix it, as well as a correction to the documentation to explain that not all lowercase letters refer to local symbols.  I have also extended the binutils testsuite to cover this scenario, so the problem should not reoccur.

Cheers
  Nick
Comment 3 cvs-commit@gcc.gnu.org 2011-05-29 04:52:59 UTC
CVSROOT:	/cvs/src
Module name:	src
Branch: 	binutils-2_21-branch
Changes by:	amodra@sourceware.org	2011-05-29 04:51:53

Modified files:
	bfd            : ChangeLog aoutx.h archive.c bfd-in2.h bfdio.c 
	                 coff-aux.c coffcode.h coffgen.c cofflink.c 
	                 config.in configure configure.in dwarf2.c 
	                 elf-bfd.h elf-m10300.c elf.c elf32-ppc.c 
	                 elf32-rx.c elf64-ppc.c elflink.c elfxx-ia64.c 
	                 libbfd.c linker.c peXXigen.c vms-alpha.c 
	bfd/hosts      : x86-64linux.h 
	binutils       : ChangeLog nm.c objcopy.c 
	binutils/doc   : binutils.texi 
	binutils/testsuite: ChangeLog 
	binutils/testsuite/binutils-all: nm.exp 
	binutils/testsuite/lib: utils-lib.exp 
	gas            : ChangeLog dwarf2dbg.c input-scrub.c messages.c 
	                 read.c 
	gas/config     : obj-elf.h tc-arc.c tc-d10v.h tc-d30v.h 
	                 tc-m32r.h 
	gas/testsuite  : ChangeLog 
	gas/testsuite/gas/i386: inval-equ-2.l 
	gas/testsuite/gas/symver: symver2.l 
	include        : ChangeLog ansidecl.h bfdlink.h 
	ld             : ChangeLog ldexp.c ldlang.c ldlex.l ldmain.c 
	                 plugin.c 
	ld/emultempl   : elf32.em pe.em pep.em 
	ld/scripttempl : pe.sc pep.sc 
	ld/testsuite   : ChangeLog 
	ld/testsuite/ld-cris: tls-e-tpoffcomm1.d 
	ld/testsuite/ld-plugin: plugin-7.d plugin-8.d 

Log message:
	PR 12365
	PR 12613
	PR 12632
	PR 12739
	PR 12753
	PR 12760
	PR 12763
	Apply fix from mainline along with assorted other small fixes.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.5180.2.34&r2=1.5180.2.35
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/aoutx.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.84.2.1&r2=1.84.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/archive.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.69.2.3&r2=1.69.2.4
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/bfd-in2.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.522.2.2&r2=1.522.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/bfdio.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.27&r2=1.27.4.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/coff-aux.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.10.10.1&r2=1.10.10.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/coffcode.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.171&r2=1.171.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/coffgen.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.78&r2=1.78.4.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/cofflink.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.74.2.1&r2=1.74.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/config.in.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.48&r2=1.48.4.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/configure.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.339.2.4&r2=1.339.2.5
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/configure.in.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.287.2.4&r2=1.287.2.5
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/dwarf2.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.138&r2=1.138.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf-bfd.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.313.2.2&r2=1.313.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf-m10300.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.106&r2=1.106.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.524.2.2&r2=1.524.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf32-ppc.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.290.2.3&r2=1.290.2.4
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf32-rx.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.5.2.1&r2=1.5.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf64-ppc.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.339.2.10&r2=1.339.2.11
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elflink.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.388.2.2&r2=1.388.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elfxx-ia64.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.228.2.1&r2=1.228.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/libbfd.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.53.2.1&r2=1.53.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/linker.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.77.2.2&r2=1.77.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/peXXigen.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.67&r2=1.67.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/vms-alpha.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.37.2.1&r2=1.37.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/hosts/x86-64linux.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.2&r2=1.2.4.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1708.2.9&r2=1.1708.2.10
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/nm.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.65&r2=1.65.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/objcopy.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.147.2.1&r2=1.147.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/doc/binutils.texi.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.173.2.1&r2=1.173.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/testsuite/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.216.2.2&r2=1.216.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/testsuite/binutils-all/nm.exp.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.5&r2=1.5.4.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/binutils/testsuite/lib/utils-lib.exp.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.20.2.1&r2=1.20.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.4320.2.29&r2=1.4320.2.30
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/dwarf2dbg.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.107&r2=1.107.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/input-scrub.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.23&r2=1.23.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/messages.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.23&r2=1.23.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/read.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.167.2.2&r2=1.167.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/obj-elf.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.38&r2=1.38.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-arc.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.47&r2=1.47.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-d10v.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.20&r2=1.20.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-d30v.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.15&r2=1.15.4.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/config/tc-m32r.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.23&r2=1.23.4.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/testsuite/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1802.2.11&r2=1.1802.2.12
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/testsuite/gas/i386/inval-equ-2.l.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1&r2=1.1.12.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/testsuite/gas/symver/symver2.l.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1&r2=1.1.38.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/include/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.510.2.2&r2=1.510.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/include/ansidecl.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.28&r2=1.28.6.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/include/bfdlink.h.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.82.2.1&r2=1.82.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.2222.2.23&r2=1.2222.2.24
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/ldexp.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.87.2.2&r2=1.87.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/ldlang.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.347.2.5&r2=1.347.2.6
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/ldlex.l.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.47.2.2&r2=1.47.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/ldmain.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.145.2.3&r2=1.145.2.4
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/plugin.c.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.7.2.5&r2=1.7.2.6
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/emultempl/elf32.em.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.214.2.1&r2=1.214.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/emultempl/pe.em.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.162.2.2&r2=1.162.2.3
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/emultempl/pep.em.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.38.2.1&r2=1.38.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/scripttempl/pe.sc.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.24&r2=1.24.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/scripttempl/pep.sc.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.13&r2=1.13.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ChangeLog.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1322.2.12&r2=1.1322.2.13
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-cris/tls-e-tpoffcomm1.d.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1&r2=1.1.6.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-plugin/plugin-7.d.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1.2.1&r2=1.1.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-plugin/plugin-8.d.diff?cvsroot=src&only_with_tag=binutils-2_21-branch&r1=1.1.2.1&r2=1.1.2.2