[Bug gold/13809] New: --print-icf-sections prints about folding empty sections
http://sourceware.org/bugzilla/show_bug.cgi?id=13809 Bug #: 13809 Summary: --print-icf-sections prints about folding empty sections Product: binutils Version: 2.22 Status: NEW Severity: normal Priority: P2 Component: gold AssignedTo: i...@airs.com ReportedBy: mh-sourcew...@glandium.org CC: ccout...@google.com Classification: Unclassified $ foo.c $ gcc -o foo.so -shared foo.c -Wl,--icf=safe -Wl,--print-icf-sections -ffunction-sections -fdata-sections /usr/local/bin/ld: ICF Converged after 2 iteration(s) /usr/local/bin/ld: ICF folding section '.text' in file '/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/crtn.o'into '.text' in file '/tmp/ccrGpJnm.o' -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/12152] Many 64-bit Solaris/SPARC gcc -gstabs testcases fail to link
http://sourceware.org/bugzilla/show_bug.cgi?id=12152 --- Comment #3 from cvs-commit at gcc dot gnu.org cvs-commit at gcc dot gnu.org 2012-03-05 16:02:27 UTC --- CVSROOT:/cvs/src Module name:src Changes by:r...@sourceware.org2012-03-05 16:02:20 Modified files: bfd: ChangeLog elfxx-sparc.c Log message: PR ld/12152 * elfxx-sparc.c (_bfd_sparc_elf_relocate_section): Also ignore overflows for R_SPARC_UA32 in .stab sections. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/ChangeLog.diff?cvsroot=srcr1=1.5620r2=1.5621 http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elfxx-sparc.c.diff?cvsroot=srcr1=1.62r2=1.63 -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/12152] Many 64-bit Solaris/SPARC gcc -gstabs testcases fail to link
http://sourceware.org/bugzilla/show_bug.cgi?id=12152 Rainer Orth ro at TechFak dot Uni-Bielefeld.DE changed: What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED AssignedTo|unassigned at sources dot |ro at CeBiTec dot |redhat.com |Uni-Bielefeld.DE --- Comment #4 from Rainer Orth ro at TechFak dot Uni-Bielefeld.DE 2012-03-05 16:03:59 UTC --- Fixed for 2.23. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gold/13809] --print-icf-sections prints about folding empty sections
http://sourceware.org/bugzilla/show_bug.cgi?id=13809 Ian Lance Taylor ian at airs dot com changed: What|Removed |Added CC||ian at airs dot com, ||tmsriram at google dot com -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13803] ld test-cases failing: arm-elf.exp erratum 760522 fix
http://sourceware.org/bugzilla/show_bug.cgi?id=13803 --- Comment #1 from cvs-commit at gcc dot gnu.org cvs-commit at gcc dot gnu.org 2012-03-05 17:21:48 UTC --- CVSROOT:/cvs/src Module name:src Changes by:h...@sourceware.org2012-03-05 17:21:42 Modified files: ld/testsuite : ChangeLog ld/testsuite/ld-arm: fix-arm1176-on.d fix-arm1176-off.d Log message: PR ld/13803 * ld-arm/fix-arm1176-off.d, ld-arm/fix-arm1176-on.d: Regexpify address of func_to_branch_to. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ChangeLog.diff?cvsroot=srcr1=1.1497r2=1.1498 http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-arm/fix-arm1176-on.d.diff?cvsroot=srcr1=1.1r2=1.2 http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-arm/fix-arm1176-off.d.diff?cvsroot=srcr1=1.1r2=1.2 -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13811] New: --gc-sections --exclude-libs ALL leave undefined symbols referenced from garbage collected code
http://sourceware.org/bugzilla/show_bug.cgi?id=13811 Bug #: 13811 Summary: --gc-sections --exclude-libs ALL leave undefined symbols referenced from garbage collected code Product: binutils Version: 2.21 Status: NEW Severity: normal Priority: P2 Component: ld AssignedTo: unassig...@sourceware.org ReportedBy: chemob...@gmail.com Classification: Unclassified Created attachment 6261 -- http://sourceware.org/bugzilla/attachment.cgi?id=6261 tar file with the example files for the reproducer I first encountered this problem with older ARM toolchains, but with my test case (see attachement) I have been able to reproduce it also with the x86 toolchain on Fedora 16. So I think this is a general problem in ld. $ ld --version GNU ld version 2.21.53.0.1-6.fc16 20110716 ld --gc-sections --exclude-libs ALL leaves undefined symbols in shared libraries that are only referenced from garbage collected code. In the example: - all code is compiled with GCC's -ffunction-sections -fdata-sections to optimize it for ld's --gc-sections - libshared.c/libshared_funcA() references libstatic_funcA() - libstatic.c contains functions libstatic_funcA() and libstatic_funcB() - libstatic.c/libstatic_funcB() references libhidden_funcA() - libstatic.c ends up in libstatic.a - libshared.so is linked from libshared.o and libstatic.a using --gc-sections --exclude-libs ALL The linker drops the code for libstatic_funcB() during GC, but the resulting shared library has an undefined symbol libhidden_funcA(). I.e. the library references something which isn't used anywhere in the code. This makes the shared library unusable, because you can't load it or link against it, unless of course libhidden_funcA() is coming from somewhere else. Running the example: $ make cc -fpic -ffunction-sections -fdata-sections -c -o test.o test.c cc -fpic -ffunction-sections -fdata-sections -c -o libshared.o libshared.c cc -fpic -ffunction-sections -fdata-sections -c -o libstatic.o libstatic.c ar rcs libstatic.a libstatic.o ld -shared -Bsymbolic -nostdlib \ --gc-sections --exclude-libs ALL \ --no-undefined \ -o libshared.so -Map libshared.map \ libshared.o libstatic.a cc -o test.exe test.o -L. -lshared ./libshared.so: undefined reference to `libhidden_funcA' collect2: ld returned 1 exit status make: *** [test.exe] Error 1 $ readelf --wide -s libshared.so | fgrep -e libstatic -e libhidden 2: 0 NOTYPE GLOBAL DEFAULT UND libhidden_funcA 10: 0 FILELOCAL DEFAULT ABS libstatic.c 11: 023c 6 FUNCLOCAL DEFAULT4 libstatic_funcA 14: 0 NOTYPE GLOBAL DEFAULT UND libhidden_funcA $ cat libshared.map Archive member included because of file (symbol) libstatic.a(libstatic.o) libshared.o (libstatic_funcA) Discarded input sections ... .text.libstatic_funcB 0x0xb libstatic.a(libstatic.o) ... $ fgrep libstatic_funcB libshared.map .text.libstatic_funcB $ objdump -d libshared.so libshared.so: file format elf64-x86-64 Disassembly of section .text: 0231 libshared_funcA: 231: 55 push %rbp 232: 48 89 e5mov%rsp,%rbp 235: e8 02 00 00 00 callq 23c libstatic_funcA 23a: 5d pop%rbp 23b: c3 retq 023c libstatic_funcA: 23c: 55 push %rbp 23d: 48 89 e5mov%rsp,%rbp 240: 5d pop%rbp 241: c3 retq So why does libhidden_funcA() end up in the symbol table? -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13812] New: Suboptimal default linker script cause internal error: out of range error
http://sourceware.org/bugzilla/show_bug.cgi?id=13812 Bug #: 13812 Summary: Suboptimal default linker script cause internal error: out of range error Product: binutils Version: 2.23 (HEAD) Status: NEW Severity: normal Priority: P2 Component: ld AssignedTo: unassig...@sourceware.org ReportedBy: g...@gcc.gnu.org CC: eric.wedding...@atmel.com Classification: Unclassified Target: avr On big devices where stubs are generated to reach all targets of indirect jumps, the following error might occur: warning: internal error: out of range error Reason is the following part of the default linker script that places .trampolines after .progmem: /* For data that needs to reside in the lower 64k of progmem. */ *(.progmem.gcc*) *(.progmem*) . = ALIGN(2); __trampolines_start = . ; /* The jump trampolines for the 16-bit limited relocs will reside here. */ *(.trampolines) *(.trampolines*) __trampolines_end = . ; Thus, if there is lot of data in the .progmem.data section (which is avr-gcc's default section for data located in flash), the .trampolines section is located outside the first 64 Ki word segment. There are two issues: 1) The error message is not helpful at all. It should mention that something goes wrong with the .trampolines or gs() modifiers or stubs generation. 2) The error could be avoided by placing .trampolines prior to .progmem like so: /* For data that needs to reside in the lower 64k of progmem. */ *(.progmem.gcc*) . = ALIGN(2); __trampolines_start = . ; /* The jump trampolines for the 16-bit limited relocs will reside here. */ *(.trampolines) *(.trampolines*) __trampolines_end = . ; *(.progmem*) The .progmem.gcc* section is used for jump dispatch tables (e.g. .progmem.gcc_sw_table) and must be located in lower 64 KiB -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13812] Suboptimal default linker script cause internal error: out of range error
http://sourceware.org/bugzilla/show_bug.cgi?id=13812 --- Comment #1 from Georg-Johann Lay gjl at gcc dot gnu.org 2012-03-05 21:36:52 UTC --- Created attachment 6262 -- http://sourceware.org/bugzilla/attachment.cgi?id=6262 stubc.c: Simplified C test case Compile with avr-gcc -mmcu=atmega2560 stubs.c -S -Os -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13812] Suboptimal default linker script cause internal error: out of range error
http://sourceware.org/bugzilla/show_bug.cgi?id=13812 --- Comment #2 from Georg-Johann Lay gjl at gcc dot gnu.org 2012-03-05 21:48:30 UTC --- Created attachment 6263 -- http://sourceware.org/bugzilla/attachment.cgi?id=6263 stubc.s: Assembler file Assemble/Link with: avr-as -mmcu=atmega2560 stubs.s -o stubs.o avr-ld -mavr6 stubs.o or at your option avr-gcc -mmcu=atmega2560 stubs.s Error message: stubs.o: In function `main': stubs.c:(.text.startup+0x0): warning: internal error: out of range error stubs.c:(.text.startup+0x2): warning: internal error: out of range error Relevant part of the map file: .text 0x0x2720e *(.vectors) .vectors 0x 0xe4 e:/winavr/4.7.0-3/bin/../lib/gcc/avr/4.7.0/../../../../avr/lib/avr6/crtm2560.o 0x__vector_default 0x__vectors *(.vectors) *(.progmem.gcc*) *(.progmem*) .progmem.data 0x00e40x27100 stubs.o 0x00e4array4 0x7de4array3 0xfae4array2 0x000177e4array1 0x0001f4e4array0 0x000271e4. = ALIGN (0x2) 0x000271e4__trampolines_start = . *(.trampolines) .trampolines 0x000271e40x4 linker stubs *(.trampolines*) 0x000271e8__trampolines_end = . *(.jumptables) -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13803] ld test-cases failing: arm-elf.exp erratum 760522 fix
http://sourceware.org/bugzilla/show_bug.cgi?id=13803 Hans-Peter Nilsson hp at sourceware dot org changed: What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED --- Comment #2 from Hans-Peter Nilsson hp at sourceware dot org 2012-03-05 22:40:10 UTC --- fixed -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13683] usage tracking by --gc-sections ignores a --defsym mapping
http://sourceware.org/bugzilla/show_bug.cgi?id=13683 --- Comment #13 from cvs-commit at gcc dot gnu.org cvs-commit at gcc dot gnu.org 2012-03-05 23:09:15 UTC --- CVSROOT:/cvs/src Module name:src Changes by:amo...@sourceware.org2012-03-05 23:09:11 Modified files: ld/testsuite : ChangeLog ld/testsuite/ld-gc: pr13683.d Log message: PR ld/13683 * ld-gc/pr13683.d: Allow non-zero top address digit. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ChangeLog.diff?cvsroot=srcr1=1.1498r2=1.1499 http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-gc/pr13683.d.diff?cvsroot=srcr1=1.1r2=1.2 -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13802] ld testsuite failure: comm-data.exp Common symbol override test; referred common symbol not UNDefined
http://sourceware.org/bugzilla/show_bug.cgi?id=13802 --- Comment #1 from Hans-Peter Nilsson hp at sourceware dot org 2012-03-05 23:37:58 UTC --- Same behavior seen in GNU ld 2.18.50.20080423 from CVS at the implied date so this is at least not a recent regression. N.B. the test-case assembly file got a linker warning Warning: tmpdir/comm-data2.o: Unknown EABI object attribute 44 unless not re-assembled with a contemporary assembler. Just mentioned for the record; I'm assuming this is to be expected between the old and the new tools as apparent from a readelf -a diff between old and new output): --- comm-data2.o.old.txtTue Mar 6 00:26:42 2012 +++ comm-data2.o.txtTue Mar 6 00:30:44 2012 @@ -10,8 +10,8 @@ ELF Header: Version: 0x1 Entry point address: 0x0 Start of program headers: 0 (bytes into file) - Start of section headers: 172 (bytes into file) - Flags: 0x400, Version4 EABI + Start of section headers: 180 (bytes into file) + Flags: 0x500, Version5 EABI Size of this header: 52 (bytes) Size of program headers: 0 (bytes) Number of program headers: 0 and: @@ -62,3 +62,6 @@ Symbol table '.symtab' contains 10 entri No version information found in this file. Attribute Section: aeabi File Attributes + Tag_ARM_ISA_use: Yes + Tag_THUMB_ISA_use: Thumb-1 + Tag_DIV_use: Not allowed -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13811] --gc-sections --exclude-libs ALL leave undefined symbols referenced from garbage collected code
http://sourceware.org/bugzilla/show_bug.cgi?id=13811 Alan Modra amodra at gmail dot com changed: What|Removed |Added CC||amodra at gmail dot com --- Comment #1 from Alan Modra amodra at gmail dot com 2012-03-06 05:15:00 UTC --- Please try current mainline binutils. I believe this has been fixed. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug ld/13811] --gc-sections --exclude-libs ALL leave undefined symbols referenced from garbage collected code
http://sourceware.org/bugzilla/show_bug.cgi?id=13811 Stefan Becker chemobejk at gmail dot com changed: What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED --- Comment #2 from Stefan Becker chemobejk at gmail dot com 2012-03-06 06:54:45 UTC --- Thanks for the information. I tried: 2.22:same issue 2.22.52: works correctly Closing. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
