Messages in this thread | | | Date | Thu, 14 Sep 2017 17:03:02 +0900 | From | Sergey Senozhatsky <> | Subject | Re: [PATCH 00/14] Fix wrong %pF and %pS printk format specifier usages |
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On (09/14/17 16:40), Sergey Senozhatsky wrote: [..] > powerpc and parisc handle kernel .opd section as well: > > arch/powerpc/kernel/vmlinux.lds.S: .opd > arch/parisc/kernel/vmlinux.lds.S: .opd
for modules, arch-s define mod_arch_specific struct.
parisc has .opd
(fdesc offset should be the start of .opd, fdesc_offset + sizeof(fdesc) * fdesc_count should be the .opd address range)
struct mod_arch_specific { unsigned long got_offset, got_count, got_max; unsigned long fdesc_offset, fdesc_count, fdesc_max; struct { unsigned long stub_offset; unsigned int stub_entries; } *section; int unwind_section; struct unwind_table *unwind; };
ia64 has .opd
struct mod_arch_specific { struct elf64_shdr *core_plt; /* core PLT section */ struct elf64_shdr *init_plt; /* init PLT section */ struct elf64_shdr *got; /* global offset table */ struct elf64_shdr *opd; /* official procedure descriptors */ struct elf64_shdr *unwind; /* unwind-table section */ unsigned long gp; /* global-pointer for module */
void *core_unw_table; /* core unwind-table cookie returned by unwinder */ void *init_unw_table; /* init unwind-table cookie returned by unwinder */ unsigned int next_got_entry; /* index of next available got entry */ };
powerpc does not keep track of .opd, need to add
struct mod_arch_specific { #ifdef __powerpc64__ unsigned int stubs_section; /* Index of stubs section in module */ unsigned int toc_section; /* What section is the TOC? */ bool toc_fixed; /* Have we fixed up .TOC.? */ #ifdef CONFIG_DYNAMIC_FTRACE unsigned long toc; unsigned long tramp; #endif
#else /* powerpc64 */ /* Indices of PLT sections within module. */ unsigned int core_plt_section; unsigned int init_plt_section; #ifdef CONFIG_DYNAMIC_FTRACE unsigned long tramp; #endif #endif /* powerpc64 */
/* List of BUG addresses, source line numbers and filenames */ struct list_head bug_list; struct bug_entry *bug_table; unsigned int num_bugs; };
seems like we are looking at a solution here.
thoughts?
-ss
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