diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/kprobes.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/ptrace.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/setup-common.c | 20 | ||||
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso32/vdso32.lds.S | 219 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso64/vdso64.lds.S | 225 |
7 files changed, 263 insertions, 214 deletions
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 440f5a87271f..5338e4855712 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -38,6 +38,8 @@ DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); +struct kretprobe_blackpoint kretprobe_blacklist[] = {{NULL, NULL}}; + int __kprobes arch_prepare_kprobe(struct kprobe *p) { int ret = 0; diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index cf7732cdd6c7..3e17d154d0d4 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -505,10 +505,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = ptrace_set_debugreg(child, addr, data); break; - case PTRACE_DETACH: - ret = ptrace_detach(child, data); - break; - #ifdef CONFIG_PPC64 case PTRACE_GETREGS64: #endif diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 36c90ba2d312..2de00f870edc 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -413,16 +413,28 @@ void __init smp_setup_cpu_maps(void) of_node_put(dn); } + vdso_data->processorCount = num_present_cpus(); +#endif /* CONFIG_PPC64 */ +} + +/* + * Being that cpu_sibling_map is now a per_cpu array, then it cannot + * be initialized until the per_cpu areas have been created. This + * function is now called from setup_per_cpu_areas(). + */ +void __init smp_setup_cpu_sibling_map(void) +{ +#if defined(CONFIG_PPC64) + int cpu; + /* * Do the sibling map; assume only two threads per processor. */ for_each_possible_cpu(cpu) { - cpu_set(cpu, cpu_sibling_map[cpu]); + cpu_set(cpu, per_cpu(cpu_sibling_map, cpu)); if (cpu_has_feature(CPU_FTR_SMT)) - cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]); + cpu_set(cpu ^ 0x1, per_cpu(cpu_sibling_map, cpu)); } - - vdso_data->processorCount = num_present_cpus(); #endif /* CONFIG_PPC64 */ } #endif /* CONFIG_SMP */ diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 008ab6823b02..0e014550b83f 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -597,6 +597,9 @@ void __init setup_per_cpu_areas(void) paca[i].data_offset = ptr - __per_cpu_start; memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); } + + /* Now that per_cpu is setup, initialize cpu_sibling_map */ + smp_setup_cpu_sibling_map(); } #endif diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index d30f08fa0297..338950aeb6f6 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -61,11 +61,11 @@ struct thread_info *secondary_ti; cpumask_t cpu_possible_map = CPU_MASK_NONE; cpumask_t cpu_online_map = CPU_MASK_NONE; -cpumask_t cpu_sibling_map[NR_CPUS] = { [0 ... NR_CPUS-1] = CPU_MASK_NONE }; +DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE; EXPORT_SYMBOL(cpu_online_map); EXPORT_SYMBOL(cpu_possible_map); -EXPORT_SYMBOL(cpu_sibling_map); +EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); /* SMP operations for this machine */ struct smp_ops_t *smp_ops; diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S index 26e138c4ce17..9352ab5200e5 100644 --- a/arch/powerpc/kernel/vdso32/vdso32.lds.S +++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S @@ -1,130 +1,147 @@ - /* * This is the infamous ld script for the 32 bits vdso * library */ #include <asm/vdso.h> -/* Default link addresses for the vDSOs */ OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") OUTPUT_ARCH(powerpc:common) ENTRY(_start) SECTIONS { - . = VDSO32_LBASE + SIZEOF_HEADERS; - .hash : { *(.hash) } :text - .gnu.hash : { *(.gnu.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - - .note : { *(.note.*) } :text :note - - . = ALIGN (16); - .text : - { - *(.text .stub .text.* .gnu.linkonce.t.*) - } - PROVIDE (__etext = .); - PROVIDE (_etext = .); - PROVIDE (etext = .); - - . = ALIGN(8); - __ftr_fixup : { - *(__ftr_fixup) - } + . = VDSO32_LBASE + SIZEOF_HEADERS; + + .hash : { *(.hash) } :text + .gnu.hash : { *(.gnu.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + + .note : { *(.note.*) } :text :note + + . = ALIGN(16); + .text : { + *(.text .stub .text.* .gnu.linkonce.t.*) + } + PROVIDE(__etext = .); + PROVIDE(_etext = .); + PROVIDE(etext = .); + + . = ALIGN(8); + __ftr_fixup : { *(__ftr_fixup) } #ifdef CONFIG_PPC64 - . = ALIGN(8); - __fw_ftr_fixup : { - *(__fw_ftr_fixup) - } + . = ALIGN(8); + __fw_ftr_fixup : { *(__fw_ftr_fixup) } #endif - /* Other stuff is appended to the text segment: */ - .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } - .rodata1 : { *(.rodata1) } - - .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr - .eh_frame : { KEEP (*(.eh_frame)) } :text - .gcc_except_table : { *(.gcc_except_table) } - .fixup : { *(.fixup) } - - .dynamic : { *(.dynamic) } :text :dynamic - .got : { *(.got) } - .plt : { *(.plt) } - - _end = .; - __end = .; - PROVIDE (end = .); - - - /* Stabs debugging sections are here too - */ - .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) } - - /DISCARD/ : { *(.note.GNU-stack) } - /DISCARD/ : { *(.data .data.* .gnu.linkonce.d.* .sdata*) } - /DISCARD/ : { *(.bss .sbss .dynbss .dynsbss) } + /* + * Other stuff is appended to the text segment: + */ + .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } + .rodata1 : { *(.rodata1) } + + .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr + .eh_frame : { KEEP (*(.eh_frame)) } :text + .gcc_except_table : { *(.gcc_except_table) } + .fixup : { *(.fixup) } + + .dynamic : { *(.dynamic) } :text :dynamic + .got : { *(.got) } + .plt : { *(.plt) } + + _end = .; + __end = .; + PROVIDE(end = .); + + /* + * Stabs debugging sections are here too. + */ + .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) } + + /* + * DWARF debug sections. + * Symbols in the DWARF debugging sections are relative to the beginning + * of the section so we begin them at 0. + */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .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) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + + /DISCARD/ : { + *(.note.GNU-stack) + *(.data .data.* .gnu.linkonce.d.* .sdata*) + *(.bss .sbss .dynbss .dynsbss) + } } +/* + * Very old versions of ld do not recognize this name token; use the constant. + */ +#define PT_GNU_EH_FRAME 0x6474e550 +/* + * We must supply the ELF program headers explicitly to get just one + * PT_LOAD segment, and set the flags explicitly to make segments read-only. + */ PHDRS { - text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ - note PT_NOTE FLAGS(4); /* PF_R */ - dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ - eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ + text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ + dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ + note PT_NOTE FLAGS(4); /* PF_R */ + eh_frame_hdr PT_GNU_EH_FRAME; } - /* * This controls what symbols we export from the DSO. */ VERSION { - VDSO_VERSION_STRING { - global: - __kernel_datapage_offset; /* Has to be there for the kernel to find */ - __kernel_get_syscall_map; - __kernel_gettimeofday; - __kernel_clock_gettime; - __kernel_clock_getres; - __kernel_get_tbfreq; - __kernel_sync_dicache; - __kernel_sync_dicache_p5; - __kernel_sigtramp32; - __kernel_sigtramp_rt32; - local: *; - }; + VDSO_VERSION_STRING { + global: + /* + * Has to be there for the kernel to find + */ + __kernel_datapage_offset; + + __kernel_get_syscall_map; + __kernel_gettimeofday; + __kernel_clock_gettime; + __kernel_clock_getres; + __kernel_get_tbfreq; + __kernel_sync_dicache; + __kernel_sync_dicache_p5; + __kernel_sigtramp32; + __kernel_sigtramp_rt32; + + local: *; + }; } diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S index 2d70f35d50b5..932b3fdb34b9 100644 --- a/arch/powerpc/kernel/vdso64/vdso64.lds.S +++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S @@ -10,100 +10,114 @@ ENTRY(_start) SECTIONS { - . = VDSO64_LBASE + SIZEOF_HEADERS; - .hash : { *(.hash) } :text - .gnu.hash : { *(.gnu.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - - .note : { *(.note.*) } :text :note - - . = ALIGN (16); - .text : - { - *(.text .stub .text.* .gnu.linkonce.t.*) - *(.sfpr .glink) - } :text - PROVIDE (__etext = .); - PROVIDE (_etext = .); - PROVIDE (etext = .); - - . = ALIGN(8); - __ftr_fixup : { - *(__ftr_fixup) - } - - . = ALIGN(8); - __fw_ftr_fixup : { - *(__fw_ftr_fixup) - } - - /* Other stuff is appended to the text segment: */ - .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } - .rodata1 : { *(.rodata1) } - .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr - .eh_frame : { KEEP (*(.eh_frame)) } :text - .gcc_except_table : { *(.gcc_except_table) } - - .opd ALIGN(8) : { KEEP (*(.opd)) } - .got ALIGN(8) : { *(.got .toc) } - .rela.dyn ALIGN(8) : { *(.rela.dyn) } - - .dynamic : { *(.dynamic) } :text :dynamic - - _end = .; - PROVIDE (end = .); - - /* Stabs debugging sections are here too - */ - .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) } - /* DWARF debug sectio/ns. - Symbols in the DWARF debugging sections are relative to the beginning - of the section so we begin them at 0. */ - /* DWARF 1 */ - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - /* GNU DWARF 1 extensions */ - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - /* DWARF 1.1 and DWARF 2 */ - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - /* DWARF 2 */ - .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) } - /* SGI/MIPS DWARF 2 extensions */ - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - - /DISCARD/ : { *(.note.GNU-stack) } - /DISCARD/ : { *(.branch_lt) } - /DISCARD/ : { *(.data .data.* .gnu.linkonce.d.*) } - /DISCARD/ : { *(.bss .sbss .dynbss .dynsbss) } + . = VDSO64_LBASE + SIZEOF_HEADERS; + + .hash : { *(.hash) } :text + .gnu.hash : { *(.gnu.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + + .note : { *(.note.*) } :text :note + + . = ALIGN(16); + .text : { + *(.text .stub .text.* .gnu.linkonce.t.*) + *(.sfpr .glink) + } :text + PROVIDE(__etext = .); + PROVIDE(_etext = .); + PROVIDE(etext = .); + + . = ALIGN(8); + __ftr_fixup : { *(__ftr_fixup) } + + . = ALIGN(8); + __fw_ftr_fixup : { *(__fw_ftr_fixup) } + + /* + * Other stuff is appended to the text segment: + */ + .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } + .rodata1 : { *(.rodata1) } + + .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr + .eh_frame : { KEEP (*(.eh_frame)) } :text + .gcc_except_table : { *(.gcc_except_table) } + + .opd ALIGN(8) : { KEEP (*(.opd)) } + .got ALIGN(8) : { *(.got .toc) } + .rela.dyn ALIGN(8) : { *(.rela.dyn) } + + .dynamic : { *(.dynamic) } :text :dynamic + + _end = .; + PROVIDE(end = .); + + /* + * Stabs debugging sections are here too. + */ + .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) } + + /* + * DWARF debug sections. + * Symbols in the DWARF debugging sections are relative to the beginning + * of the section so we begin them at 0. + */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .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) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + + /DISCARD/ : { + *(.note.GNU-stack) + *(.branch_lt) + *(.data .data.* .gnu.linkonce.d.* .sdata*) + *(.bss .sbss .dynbss .dynsbss) + } } +/* + * Very old versions of ld do not recognize this name token; use the constant. + */ +#define PT_GNU_EH_FRAME 0x6474e550 + +/* + * We must supply the ELF program headers explicitly to get just one + * PT_LOAD segment, and set the flags explicitly to make segments read-only. + */ PHDRS { - text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ - note PT_NOTE FLAGS(4); /* PF_R */ - dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ - eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ + text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ + dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ + note PT_NOTE FLAGS(4); /* PF_R */ + eh_frame_hdr PT_GNU_EH_FRAME; } /* @@ -111,17 +125,22 @@ PHDRS */ VERSION { - VDSO_VERSION_STRING { - global: - __kernel_datapage_offset; /* Has to be there for the kernel to find */ - __kernel_get_syscall_map; - __kernel_gettimeofday; - __kernel_clock_gettime; - __kernel_clock_getres; - __kernel_get_tbfreq; - __kernel_sync_dicache; - __kernel_sync_dicache_p5; - __kernel_sigtramp_rt64; - local: *; - }; + VDSO_VERSION_STRING { + global: + /* + * Has to be there for the kernel to find + */ + __kernel_datapage_offset; + + __kernel_get_syscall_map; + __kernel_gettimeofday; + __kernel_clock_gettime; + __kernel_clock_getres; + __kernel_get_tbfreq; + __kernel_sync_dicache; + __kernel_sync_dicache_p5; + __kernel_sigtramp_rt64; + + local: *; + }; } |