[Bug ld/24574] extern symbols in dlls are misleading under debugger
https://sourceware.org/bugzilla/show_bug.cgi?id=24574 --- Comment #11 from Eric Botcazou --- > I went ahead and dug into this a little bit more. First off, props for the > great testcase, it was great to even have the gdb test routine automated. Thanks for the analysis! The __imp prefix has been dropped because I have dropped this piece of code from pe_find_data_imports in the patch: - /* We replace original name with __imp_ prefixed, this -1) may trash memory 2) leads to duplicate symbol generation. -Still, IMHO it's better than having name polluted. */ - undef->root.string = sym->root.string; -- 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/24574] extern symbols in dlls are misleading under debugger
https://sourceware.org/bugzilla/show_bug.cgi?id=24574 Eric Botcazou changed: What|Removed |Added URL||https://sourceware.org/ml/b ||inutils/2019-09/msg00013.ht ||ml -- 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/24574] extern symbols in dlls are misleading under debugger
https://sourceware.org/bugzilla/show_bug.cgi?id=24574 --- Comment #12 from cvs-commit at gcc dot gnu.org --- The master branch has been updated by Eric Botcazou : https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=de07a745805b28ed2c973635752719c4a6a32b1d commit de07a745805b28ed2c973635752719c4a6a32b1d Author: Eric Botcazou Date: Thu Sep 5 18:23:37 2019 +0200 Fix PR ld/24574 This restores a line that has been dropped when the auto-import feature of the PE-COFF linker was overhauled about one year. It is necessary for GDB to properly resolve extern symbol in DLLs. ld/ChangeLog * pe-dll.c (pe_find_data_imports): Replace again the original name of the undefined symbol with the __imp_ prefixed one after it is resolved. -- 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/24574] extern symbols in dlls are misleading under debugger
https://sourceware.org/bugzilla/show_bug.cgi?id=24574 --- Comment #13 from cvs-commit at gcc dot gnu.org --- The binutils-2_32-branch branch has been updated by Eric Botcazou : https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6f7a2922078bde30ca6ec1391a30d79f59c87b9a commit 6f7a2922078bde30ca6ec1391a30d79f59c87b9a Author: Eric Botcazou Date: Thu Sep 5 18:23:37 2019 +0200 Fix PR ld/24574 This restores a line that has been dropped when the auto-import feature of the PE-COFF linker was overhauled about one year. It is necessary for GDB to properly resolve extern symbol in DLLs. ld/ChangeLog * pe-dll.c (pe_find_data_imports): Replace again the original name of the undefined symbol with the __imp_ prefixed one after it is resolved. -- 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/24574] extern symbols in dlls are misleading under debugger
https://sourceware.org/bugzilla/show_bug.cgi?id=24574 --- Comment #14 from cvs-commit at gcc dot gnu.org --- The binutils-2_31-branch branch has been updated by Eric Botcazou : https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=34a30b6758db4fe53b2872d7bd3824c778f6118c commit 34a30b6758db4fe53b2872d7bd3824c778f6118c Author: Eric Botcazou Date: Thu Sep 5 18:23:37 2019 +0200 Fix PR ld/24574 This restores a line that has been dropped when the auto-import feature of the PE-COFF linker was overhauled about one year. It is necessary for GDB to properly resolve extern symbol in DLLs. ld/ChangeLog * pe-dll.c (pe_find_data_imports): Replace again the original name of the undefined symbol with the __imp_ prefixed one after it is resolved. -- 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/24574] extern symbols in dlls are misleading under debugger
https://sourceware.org/bugzilla/show_bug.cgi?id=24574 Eric Botcazou changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Target Milestone|--- |2.33 --- Comment #15 from Eric Botcazou --- This should work again now. -- 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 binutils/24968] New: objcopy: -B is not useful
https://sourceware.org/bugzilla/show_bug.cgi?id=24968 Bug ID: 24968 Summary: objcopy: -B is not useful Product: binutils Version: 2.33 (HEAD) Status: UNCONFIRMED Severity: normal Priority: P2 Component: binutils Assignee: unassigned at sourceware dot org Reporter: maskray at google dot com Target Milestone: --- objcopy -I binary -O elf64-x86-64 a.txt b # e_machine is EM_NONE objcopy -I binary -B i386:x86-64 -O elf64-x86-64 a.txt c # e_machine is EM_X86_64 cmp -l b c# one byte difference: 19 0 76 objcopy -I ihex -O elf64-x86-64 a.hex b.o # e_machine is EM_NONE objcopy -I ihex -B i386:x86-64 -O elf64-x86-64 a.hex b.o # e_machine is EM_X86_64 cmp -l b c# one byte difference: 19 0 76 aarch64/binutils/objcopy -I binary -O elf64-littleaarch64 a.txt b; file b a.o: ELF 64-bit LSB relocatable, no machine, version 1 (SYSV), not stripped This means when -I binary is used, both -O and -B have to be specified. The e_machine information "i386:x86-64" can be inferred from elf64-x86-64. So is it possible to ignore -B and let `objcopy -I binary -O elf*` create an object file with e_machine set? This will not break existing use cases. There is a precedent that ignores -B, elftoolchain elfcopy case 'B': /* ignored */ break; ... case 'I': case 's': set_input_target(ecp, optarg); break; ... case 'O': set_output_target(ecp, optarg); break; -- 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
