From: Rusty Russell Introduce _sinittext and _einittext (cf. _stext and _etext), so kallsyms includes __init functions. TODO: Use huffman name compression and 16-bit offsets (see IDE oopser patch) arch/alpha/vmlinux.lds.S | 6 +++++- arch/arm/vmlinux-armo.lds.in | 2 ++ arch/arm/vmlinux-armv.lds.in | 2 ++ arch/i386/vmlinux.lds.S | 6 +++++- arch/ia64/vmlinux.lds.S | 6 +++++- arch/m68k/vmlinux-std.lds | 6 +++++- arch/m68k/vmlinux-sun3.lds | 6 +++++- arch/m68knommu/vmlinux.lds.S | 2 ++ arch/parisc/vmlinux.lds.S | 6 +++++- arch/ppc/vmlinux.lds.S | 6 +++++- arch/ppc64/vmlinux.lds.S | 6 +++++- arch/s390/vmlinux.lds.S | 6 +++++- arch/s390x/vmlinux.lds.S | 6 +++++- arch/sparc/vmlinux.lds.S | 6 +++++- arch/sparc64/vmlinux.lds.S | 6 +++++- arch/v850/vmlinux.lds.S | 4 ++++ arch/x86_64/vmlinux.lds.S | 6 +++++- kernel/extable.c | 6 +++++- kernel/kallsyms.c | 21 +++++++++++++++++++-- scripts/kallsyms.c | 12 +++++++----- 20 files changed, 106 insertions(+), 21 deletions(-) diff -puN arch/alpha/vmlinux.lds.S~init-sections-in-kallsyms arch/alpha/vmlinux.lds.S --- 25/arch/alpha/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/alpha/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -32,7 +32,11 @@ SECTIONS /* Will be freed after init */ . = ALIGN(8192); /* Init code and data */ __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); diff -puN arch/arm/vmlinux-armo.lds.in~init-sections-in-kallsyms arch/arm/vmlinux-armo.lds.in --- 25/arch/arm/vmlinux-armo.lds.in~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/arm/vmlinux-armo.lds.in 2003-03-31 23:29:33.000000000 -0800 @@ -14,7 +14,9 @@ SECTIONS .init : { /* Init code and data */ _stext = .; __init_begin = .; + _sinittext = .; *(.init.text) + _einittext = .; __proc_info_begin = .; *(.proc.info) __proc_info_end = .; diff -puN arch/arm/vmlinux-armv.lds.in~init-sections-in-kallsyms arch/arm/vmlinux-armv.lds.in --- 25/arch/arm/vmlinux-armv.lds.in~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/arm/vmlinux-armv.lds.in 2003-03-31 23:29:33.000000000 -0800 @@ -18,7 +18,9 @@ SECTIONS .init : { /* Init code and data */ _stext = .; __init_begin = .; + _sinittext = .; *(.init.text) + _einittext = .; __proc_info_begin = .; *(.proc.info) __proc_info_end = .; diff -puN arch/i386/vmlinux.lds.S~init-sections-in-kallsyms arch/i386/vmlinux.lds.S --- 25/arch/i386/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/i386/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -54,7 +54,11 @@ SECTIONS /* will be freed after init */ . = ALIGN(4096); /* Init code and data */ __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); __setup_start = .; diff -puN arch/ia64/vmlinux.lds.S~init-sections-in-kallsyms arch/ia64/vmlinux.lds.S --- 25/arch/ia64/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/ia64/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -96,7 +96,11 @@ SECTIONS . = ALIGN(PAGE_SIZE); __init_begin = .; .init.text : AT(ADDR(.init.text) - PAGE_OFFSET) - { *(.init.text) } + { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : AT(ADDR(.init.data) - PAGE_OFFSET) { *(.init.data) } diff -puN arch/m68knommu/vmlinux.lds.S~init-sections-in-kallsyms arch/m68knommu/vmlinux.lds.S --- 25/arch/m68knommu/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/m68knommu/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -282,7 +282,9 @@ SECTIONS { .init : { . = ALIGN(4096); __init_begin = .; + _sinittext = .; *(.init.text) + _einittext = .; *(.init.data) . = ALIGN(16); __setup_start = .; diff -puN arch/m68k/vmlinux-std.lds~init-sections-in-kallsyms arch/m68k/vmlinux-std.lds --- 25/arch/m68k/vmlinux-std.lds~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/m68k/vmlinux-std.lds 2003-03-31 23:29:33.000000000 -0800 @@ -40,7 +40,11 @@ SECTIONS /* will be freed after init */ . = ALIGN(4096); /* Init code and data */ __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); __setup_start = .; diff -puN arch/m68k/vmlinux-sun3.lds~init-sections-in-kallsyms arch/m68k/vmlinux-sun3.lds --- 25/arch/m68k/vmlinux-sun3.lds~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/m68k/vmlinux-sun3.lds 2003-03-31 23:29:33.000000000 -0800 @@ -34,7 +34,11 @@ SECTIONS /* will be freed after init */ . = ALIGN(8192); /* Init code and data */ __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); __setup_start = .; diff -puN arch/parisc/vmlinux.lds.S~init-sections-in-kallsyms arch/parisc/vmlinux.lds.S --- 25/arch/parisc/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/parisc/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -53,7 +53,11 @@ SECTIONS . = ALIGN(16384); __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); __setup_start = .; diff -puN arch/ppc64/vmlinux.lds.S~init-sections-in-kallsyms arch/ppc64/vmlinux.lds.S --- 25/arch/ppc64/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/ppc64/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -77,7 +77,11 @@ SECTIONS /* will be freed after init */ . = ALIGN(4096); __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); __setup_start = .; diff -puN arch/ppc/vmlinux.lds.S~init-sections-in-kallsyms arch/ppc/vmlinux.lds.S --- 25/arch/ppc/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/ppc/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -78,7 +78,11 @@ SECTIONS . = ALIGN(4096); __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data); __vtop_table_begin = .; diff -puN arch/s390/vmlinux.lds.S~init-sections-in-kallsyms arch/s390/vmlinux.lds.S --- 25/arch/s390/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/s390/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -58,7 +58,11 @@ SECTIONS /* will be freed after init */ . = ALIGN(4096); /* Init code and data */ __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(256); __setup_start = .; diff -puN arch/s390x/vmlinux.lds.S~init-sections-in-kallsyms arch/s390x/vmlinux.lds.S --- 25/arch/s390x/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/s390x/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -58,7 +58,11 @@ SECTIONS /* will be freed after init */ . = ALIGN(4096); /* Init code and data */ __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(256); __setup_start = .; diff -puN arch/sparc64/vmlinux.lds.S~init-sections-in-kallsyms arch/sparc64/vmlinux.lds.S --- 25/arch/sparc64/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/sparc64/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -41,7 +41,11 @@ SECTIONS . = ALIGN(8192); __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); __setup_start = .; diff -puN arch/sparc/vmlinux.lds.S~init-sections-in-kallsyms arch/sparc/vmlinux.lds.S --- 25/arch/sparc/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/sparc/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -34,7 +34,11 @@ SECTIONS . = ALIGN(4096); __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } __init_text_end = .; .init.data : { *(.init.data) } . = ALIGN(16); diff -puN arch/v850/vmlinux.lds.S~init-sections-in-kallsyms arch/v850/vmlinux.lds.S --- 25/arch/v850/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/v850/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -105,7 +105,9 @@ #define RAMK_INIT_CONTENTS_NO_END \ . = ALIGN (4096) ; \ __init_start = . ; \ + _sinittext = .; \ *(.init.text) /* 2.5 convention */ \ + _einittext = .; \ *(.init.data) \ *(.text.init) /* 2.4 convention */ \ *(.data.init) \ @@ -125,7 +127,9 @@ /* The contents of `init' section for a ROM-resident kernel which should go into ROM. */ #define ROMK_INIT_ROM_CONTENTS \ + _sinittext = .; \ *(.init.text) /* 2.5 convention */ \ + _einittext = .; \ *(.text.init) /* 2.4 convention */ \ INITCALL_CONTENTS \ INITRAMFS_CONTENTS diff -puN arch/x86_64/vmlinux.lds.S~init-sections-in-kallsyms arch/x86_64/vmlinux.lds.S --- 25/arch/x86_64/vmlinux.lds.S~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/arch/x86_64/vmlinux.lds.S 2003-03-31 23:29:33.000000000 -0800 @@ -78,7 +78,11 @@ SECTIONS . = ALIGN(4096); /* Init code and data */ __init_begin = .; - .init.text : { *(.init.text) } + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } .init.data : { *(.init.data) } . = ALIGN(16); __setup_start = .; diff -puN kernel/extable.c~init-sections-in-kallsyms kernel/extable.c --- 25/kernel/extable.c~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/kernel/extable.c 2003-03-31 23:29:33.000000000 -0800 @@ -19,7 +19,7 @@ extern const struct exception_table_entry __start___ex_table[]; extern const struct exception_table_entry __stop___ex_table[]; -extern char _stext[], _etext[]; +extern char _stext[], _etext[], _sinittext[], _einittext[]; /* Given an address, look for it in the exception tables. */ const struct exception_table_entry *search_exception_tables(unsigned long addr) @@ -38,5 +38,9 @@ int kernel_text_address(unsigned long ad addr <= (unsigned long)_etext) return 1; + if (addr >= (unsigned long)_sinittext && + addr <= (unsigned long)_einittext) + return 1; + return module_text_address(addr); } diff -puN kernel/kallsyms.c~init-sections-in-kallsyms kernel/kallsyms.c --- 25/kernel/kallsyms.c~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/kernel/kallsyms.c 2003-03-31 23:29:33.000000000 -0800 @@ -15,7 +15,22 @@ extern unsigned long kallsyms_num_syms _ extern char kallsyms_names[] __attribute__((weak)); /* Defined by the linker script. */ -extern char _stext[], _etext[]; +extern char _stext[], _etext[], _sinittext[], _einittext[]; + +static inline int is_kernel_inittext(unsigned long addr) +{ + if (addr >= (unsigned long)_sinittext + && addr <= (unsigned long)_einittext) + return 1; + return 0; +} + +static inline int is_kernel_text(unsigned long addr) +{ + if (addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) + return 1; + return 0; +} /* Lookup an address. modname is set to NULL if it's in the kernel. */ const char *kallsyms_lookup(unsigned long addr, @@ -31,7 +46,7 @@ const char *kallsyms_lookup(unsigned lon namebuf[127] = 0; namebuf[0] = 0; - if (addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) { + if (is_kernel_text(addr) || is_kernel_inittext(addr)) { unsigned long symbol_end; char *name = kallsyms_names; @@ -52,6 +67,8 @@ const char *kallsyms_lookup(unsigned lon /* Base symbol size on next symbol. */ if (best + 1 < kallsyms_num_syms) symbol_end = kallsyms_addresses[best + 1]; + else if (is_kernel_inittext(addr)) + symbol_end = (unsigned long)_einittext; else symbol_end = (unsigned long)_etext; diff -puN scripts/kallsyms.c~init-sections-in-kallsyms scripts/kallsyms.c --- 25/scripts/kallsyms.c~init-sections-in-kallsyms 2003-03-31 23:29:33.000000000 -0800 +++ 25-akpm/scripts/kallsyms.c 2003-03-31 23:29:33.000000000 -0800 @@ -21,7 +21,7 @@ struct sym_entry { static struct sym_entry *table; static int size, cnt; -static unsigned long long _stext, _etext; +static unsigned long long _stext, _etext, _sinittext, _einittext; static void usage(void) @@ -51,10 +51,8 @@ read_symbol(FILE *in, struct sym_entry * static int symbol_valid(struct sym_entry *s) { - if (s->addr < _stext) - return 0; - - if (s->addr > _etext) + if ((s->addr < _stext || s->addr > _etext) + && (s->addr < _sinittext || s->addr > _einittext)) return 0; if (strstr(s->sym, "_compiled.")) @@ -85,6 +83,10 @@ read_map(FILE *in) _stext = table[i].addr; if (strcmp(table[i].sym, "_etext") == 0) _etext = table[i].addr; + if (strcmp(table[i].sym, "_sinittext") == 0) + _sinittext = table[i].addr; + if (strcmp(table[i].sym, "_einittext") == 0) + _einittext = table[i].addr; } } _