Hi there, Static builds of qemu on x86-64 (and probably i386) fail with: gcc -I/home/lool/git/savannah/qemu/slirp -Werror -m64 -Wold-style-definition -Wold-style-declaration -I. -I/home/lool/git/savannah/qemu -U_FORTIFY_SOURCE -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wendif-labels -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -I/home/lool/git/savannah/qemu/fpu -I/home/lool/git/savannah/qemu/tcg -I/home/lool/git/savannah/qemu/tcg/x86_64 -I.. -I/home/lool/git/savannah/qemu/target-arm -DNEED_CPU_H -I/home/lool/git/savannah/qemu/linux-user -I/home/lool/git/savannah/qemu/linux-user/arm -O2 -g -static -Wl,--warn-common -m64 -g -Wl,-T../config-host.ld -Wl,-T,/home/lool/git/savannah/qemu/x86_64.ld -o qemu-arm main.o syscall.o strace.o mmap.o signal.o thunk.o elfload.o linuxload.o uaccess.o gdbstub.o flatload.o gdbstub-xml.o nwfpe/fpa11.o nwfpe/fpa11_cpdo.o nwfpe/fpa11_cpdt.o nwfpe/fpa11_cprt.o nwfpe/fpopcode.o nwfpe/single_cpdo.o nwfpe/double_cpdo.o nwfpe/extended_cpdo.o arm-semi.o -Wl,--whole-archive ../libuser/libuser.a libqemu.a -Wl,--no-whole-archive -lrt -lpthread -lm /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libc.a(elf-init.o): In function `__libc_csu_irel': (.text+0xd4): undefined reference to `__rela_iplt_end' /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libc.a(elf-init.o): In function `__libc_csu_irel': (.text+0xe5): undefined reference to `__rela_iplt_start' /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libc.a(elf-init.o): In function `__libc_csu_irel': (.text+0x100): undefined reference to `__rela_iplt_start' /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libc.a(elf-init.o): In function `__libc_csu_irel': (.text+0x10a): undefined reference to `__rela_iplt_start' /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libc.a(elf-init.o): In function `__libc_csu_irel': (.text+0x10f): undefined reference to `__rela_iplt_start' /usr/lib/gcc/x86_64-linux-gnu/4.4.3/../../../../lib/libc.a(elf-init.o): In function `__libc_csu_irel': (.text+0x114): undefined reference to `__rela_iplt_start' collect2: ld returned 1 exit status
This is due to changes in binutils + glibc, qemu's linker script need to be adjusted to include these symbols. qemu's scripts weren't copying the .rela.iplt section at all, so I included this section and the __rela_iplt_start and __rela_iplt_end arount it. Tested by building qemu in static and shared mode for the arm-softmmu,i386-softmmu,x86_64-softmmu,arm-linux-user,i386-linux-user,x86_64-linux-user target-list; I also ran qemu for almost all combinations. Thanks, -- Loïc Minier
>From ac0fe6dabaf05bf434e9c57d4f9b61d73f660e3c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Minier?= <l...@dooz.org> Date: Sun, 17 Jan 2010 12:09:38 +0100 Subject: [PATCH] Fix missing symbols in .rela.plt sections MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix .rela.plt sections in the output to not only include .rela.plt sections from the input but also the .rela.iplt sections and to define the hidden symbols __rela_iplt_start and __rela_iplt_end around .rela.iplt as otherwise we get undefined references to these when linking statically to a multilib libc.a. Signed-off-by: Loïc Minier <l...@dooz.org> --- i386.ld | 8 +++++++- x86_64.ld | 8 +++++++- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/i386.ld b/i386.ld index f2dafec..bb245a7 100644 --- a/i386.ld +++ b/i386.ld @@ -40,7 +40,13 @@ SECTIONS .rel.bss : { *(.rel.bss) } .rela.bss : { *(.rela.bss) } .rel.plt : { *(.rel.plt) } - .rela.plt : { *(.rela.plt) } + .rela.plt : + { + *(.rela.plt) + PROVIDE_HIDDEN (__rela_iplt_start = .); + *(.rela.iplt) + PROVIDE_HIDDEN (__rela_iplt_end = .); + } .init : { *(.init) } =0x47ff041f .text : { diff --git a/x86_64.ld b/x86_64.ld index 24ea77d..684d2d7 100644 --- a/x86_64.ld +++ b/x86_64.ld @@ -36,7 +36,13 @@ SECTIONS .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } .rel.plt : { *(.rel.plt) } - .rela.plt : { *(.rela.plt) } + .rela.plt : + { + *(.rela.plt) + PROVIDE_HIDDEN (__rela_iplt_start = .); + *(.rela.iplt) + PROVIDE_HIDDEN (__rela_iplt_end = .); + } .init : { KEEP (*(.init)) -- 1.6.5