It may be related : PATH=/opt/crosstool/gcc-4.1.1-glibc-2.3.6/sparc-unknown-linux-gnu/bin \ sparc-unknown-linux-gnu-objdump -r vmlinux RELOCATION RECORDS FOR [.markers.c]: OFFSET TYPE VALUE 00000000 R_SPARC_UA32 .rodata+0x00029d98 00000004 R_SPARC_UA32 .data+0x00002558 00000008 R_SPARC_UA32 .rodata+0x00029d08 00000010 R_SPARC_UA32 .rodata+0x00029db0 00000014 R_SPARC_UA32 .data+0x0000255c 00000018 R_SPARC_UA32 .rodata+0x00029d70 00000020 R_SPARC_UA32 .rodata+0x00029dc8 00000024 R_SPARC_UA32 .data+0x00002560 00000028 R_SPARC_UA32 .rodata+0x00029d08 00000030 R_SPARC_UA32 .rodata+0x00029f00 .... the .markers.c seems to have unaligned relocation records, which is a little odd. I don't see other elsewhere in vmlinux. Mathieu * Mathieu Desnoyers (compudj@xxxxxxxxxxxxxxxxxx) wrote: > * Frank Ch. Eigler (fche@xxxxxxxxxx) wrote: > > Hi - > > > > > It seems like I bust the 8k limit for the sparc GOT : > > > The kallsyms_addresses is 8614 lines long (for a 33.6kB total) in the .S, > > > and, according to > > > http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/Code-Gen-Options.html : > > > [...] > > > > That could be it, but I don't see how that table of symbol addresses > > .long _text - 0xbeef > > is using any GOT slots at all. (Plus I don't know how a R_SPARC_32 > > could ever be truncated - maybe there is a 64- vs 32-bit toolchain > > confusion happening somewhere?) > > > > The toolchain is built using crosstool 0.43 (plus modifications to get gcc > 4.1.1). The target is sparc-unknown-linux-gnu (not sparc64-unknown-linux-gnu), > which seems correct. > > I just found this post which is enlightening : > http://gcc.gnu.org/ml/gcc-bugs/2001-06/msg00115.html > "> > ld.so.1: ./a.out: fatal: relocation error: R_SPARC_32: file > /local/nathan/devel/lib/libstdc++.so.3: symbol __gxx_personality_v0: > offset 0x7fb1b0ca is non-aligned > > > > Until recently GNU binutils didn't handle R_SPARC_UA32 correctly. Try > > the > > native Solaris as/ld or a new snapshot. > I can confirm that the 010604 binutils snapshot is ok." > > > > I could be misunderstanding things, but maybe what's wrong is that the > > new markers section is located in a sensitive spot, and its size is > > causing something else to no longer be reachable by shorter offsets. > > But if offsets are encoded on 32 bits, I don't see how it can become > unreachable. Unless it's a binutils bug.. > > I will try a different binutils version and keep you informed. > > Mathieu > > > What are the neighbouring regions in the linker script? > > > > Here is the detail of arch/sparc/kernel/vmlinux.lds : > > /* ld script to make SparcLinux kernel */ > /* Align . to a 8 byte boundary equals to maximum function alignment. */ > /* sched.text is aling to function alignment to secure we have same > * address even at second ld pass when generating System.map */ > /* spinlock.text is aling to function alignment to secure we have same > * address even at second ld pass when generating System.map */ > /* DWARF debug sections. > Symbols in the DWARF debugging sections are relative to > the beginning of the section so we begin them at 0. */ > /* Stabs debugging sections. */ > OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc") > OUTPUT_ARCH(sparc) > ENTRY(_start) > jiffies = jiffies_64 + 4; > SECTIONS > { > . = 0x10000 + SIZEOF_HEADERS; > .text 0xf0004000 : > { > _text = .; > *(.text) > . = ALIGN(8); __sched_text_start = .; *(.sched.text) __sched_text_end = .; > . = ALIGN(8); __lock_text_start = .; *(.spinlock.text) __lock_text_end = .; > *(.gnu.warning) > } =0 > _etext = .; > PROVIDE (etext = .); > . = ALIGN(4096); .rodata : AT(ADDR(.rodata) - 0) { __start_rodata = .; *(.rodata) *(.rodata.*) *(__vermagic) } .rodata1 : AT(ADDR(.rodata1) - 0) { *(.rodata1) } .pci_fixup : AT(ADDR(.pci_fixup) - 0) { __start_pci_fixups_early = .; *(.pci_fixup_early) __end_pci_fixups_early = .; __start_pci_fixups_header = .; *(.pci_fixup_header) __end_pci_fixups_header = .; __start_pci_fixups_final = .; *(.pci_fixup_final) __end_pci_fixups_final = .; __start_pci_fixups_enable = .; *(.pci_fixup_enable) __end_pci_fixups_enable = .; __start_pci_fixups_resume = .; *(.pci_fixup_resume) __end_pci_fixups_resume = .; } .rio_route : AT(ADDR(.rio_route) - 0) { __start_rio_route_ops = .; *(.rio_route_ops) __end_rio_route_ops = .; } __ksymtab : AT(ADDR(__ksymtab) - 0) { __start___ksymtab = .; *(__ksymtab) __stop___ksymtab = .; } __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - 0) { __start___ksymtab_gpl = .; *(__ksymtab_gpl) __stop___ksymtab_gpl = .; } __ksymtab_unused : AT(ADDR(__ksymtab_unused) - 0) { __start___ksymtab_unused = .; *(__ksymtab_unused) __stop___ksymtab_unused = .; } __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - 0) { __start___ksymtab_unused_gpl = .; *(__ksymtab_unused_gpl) __stop___ksymtab_unused_gpl = .; } __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - 0) { __start___ksymtab_gpl_future = .; *(__ksymtab_gpl_future) __stop___ksymtab_gpl_future = .; } __kcrctab : AT(ADDR(__kcrctab) - 0) { __start___kcrctab = .; *(__kcrctab) __stop___kcrctab = .; } __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - 0) { __start___kcrctab_gpl = .; *(__kcrctab_gpl) __stop___kcrctab_gpl = .; } __kcrctab_unused : AT(ADDR(__kcrctab_unused) - 0) { __start___kcrctab_unused = .; *(__kcrctab_unused) __stop___kcrctab_unused = .; } __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - 0) { __start___kcrctab_unused_gpl = .; *(__kcrctab_unused_gpl) __stop___kcrctab_unused_gpl = .; } __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - 0) { __start___kcrctab_gpl_future = .; *(__kcrctab_gpl_future) __stop___kcrctab_gpl_future = .; } __ksymtab_strings : AT(ADDR(__ksymtab_strings) - 0) { *(__ksymtab_strings) } .markers : AT(ADDR(.markers) - 0) { __start___markers = .; *(.markers) __stop___markers = .; } __end_rodata = .; . = ALIGN(4096); __param : AT(ADDR(__param) - 0) { __start___param = .; *(__param) __stop___param = .; __end_rodata = .; } . = ALIGN(4096); > .data : > { > *(.data) > CONSTRUCTORS > } > .data1 : { *(.data1) } > _edata = .; > PROVIDE (edata = .); > __start___fixup = .; > .fixup : { *(.fixup) } > __stop___fixup = .; > __start___ex_table = .; > __ex_table : { *(__ex_table) } > __stop___ex_table = .; > . = ALIGN(4096); > __init_begin = .; > _sinittext = .; > .init.text : { > *(.init.text) > } > _einittext = .; > __init_text_end = .; > .init.data : { *(.init.data) } > . = ALIGN(16); > __setup_start = .; > .init.setup : { *(.init.setup) } > __setup_end = .; > __initcall_start = .; > .initcall.init : { > *(.initcall0.init) *(.initcall0s.init) *(.initcall1.init) *(.initcall1s.init) *(.initcall2.init) *(.initcall2s.init) *(.initcall3.init) *(.initcall3s.init) *(.initcall4.init) *(.initcall4s.init) *(.initcall5.init) *(.initcall5s.init) *(.initcallrootfs.init) *(.initcall6.init) *(.initcall6s.init) *(.initcall7.init) *(.initcall7s.init) > } > __initcall_end = .; > __con_initcall_start = .; > .con_initcall.init : { *(.con_initcall.init) } > __con_initcall_end = .; > .security_initcall.init : AT(ADDR(.security_initcall.init) - 0) { __security_initcall_start = .; *(.security_initcall.init) __security_initcall_end = .; } > . = ALIGN(4096); > __initramfs_start = .; > .init.ramfs : { *(.init.ramfs) } > __initramfs_end = .; > . = ALIGN(32); > __per_cpu_start = .; > .data.percpu : { *(.data.percpu) } > __per_cpu_end = .; > . = ALIGN(4096); > __init_end = .; > . = ALIGN(32); > .data.cacheline_aligned : { *(.data.cacheline_aligned) } > __bss_start = .; > .sbss : { *(.sbss) *(.scommon) } > .bss : > { > *(.dynbss) > *(.bss) > *(COMMON) > } > _end = . ; > PROVIDE (end = .); > /DISCARD/ : { *(.exit.text) *(.exit.data) *(.exitcall.exit) } > .stab 0 : { *(.stab) } .stabstr 0 : { *(.stabstr) } .stab.excl 0 : { *(.stab.excl) } .stab.exclstr 0 : { *(.stab.exclstr) } .stab.index 0 : { *(.stab.index) } .stab.indexstr 0 : { *(.stab.indexstr) } .comment 0 : { *(.comment) } > .debug 0 : { *(.debug) } .line 0 : { *(.line) } .debug_srcinfo 0 : { *(.debug_srcinfo) } .debug_sfnames 0 : { *(.debug_sfnames) } .debug_aranges 0 : { *(.debug_aranges) } .debug_pubnames 0 : { *(.debug_pubnames) } .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } .debug_abbrev 0 : { *(.debug_abbrev) } .debug_line 0 : { *(.debug_line) } .debug_frame 0 : { *(.debug_frame) } .debug_str 0 : { *(.debug_str) } .debug_loc 0 : { *(.debug_loc) } .debug_macinfo 0 : { *(.debug_macinfo) } .debug_weaknames 0 : { *(.debug_weaknames) } .debug_funcnames 0 : { *(.debug_funcnames) } .debug_typenames 0 : { *(.debug_typenames) } .debug_varnames 0 : { *(.debug_varnames) } > } > > > -- > Mathieu Desnoyers > Computer Engineering Graduate Student, École Polytechnique de Montréal > OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 > _______________________________________________ > Ltt-dev mailing list > Ltt-dev@xxxxxxxxxxxxxxxxxxx > http://listserv.shafik.org/mailman/listinfo/ltt-dev > -- Mathieu Desnoyers Computer Engineering Graduate Student, École Polytechnique de Montréal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
