* 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 - 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
