diff options
| author | Pratyush Anand <panand@redhat.com> | 2017-05-17 14:51:42 +0900 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2017-05-22 13:33:24 +0200 |
| commit | 325804055e99dbf40af5e6fa546320b821d9d821 (patch) | |
| tree | e0f9131d38e423d55702647f8c7c865ae760bff1 /kexec/arch/i386/crashdump-x86.c | |
| parent | c95df0e099b14757de483245d7b1b45e2d6e2c91 (diff) | |
kexec: generalize and rename get_kernel_stext_sym()
get_kernel_stext_sym() has been defined for both arm and i386. Other
architecture might need some other kernel symbol address. Therefore rewrite
this function as generic function to get any kernel symbol address.
More over, kallsyms is not arch specific representation, therefore have
common function for all arches.
Signed-off-by: Pratyush Anand <panand@redhat.com>
[created symbols.c]
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Tested-by: David Woodhouse <dwmw@amazon.co.uk>
Tested-by: Pratyush Anand <panand@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec/arch/i386/crashdump-x86.c')
| -rw-r--r-- | kexec/arch/i386/crashdump-x86.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c index 285dea9..69a063a 100644 --- a/kexec/arch/i386/crashdump-x86.c +++ b/kexec/arch/i386/crashdump-x86.c @@ -102,35 +102,6 @@ static int get_kernel_paddr(struct kexec_info *UNUSED(info), return -1; } -/* Retrieve kernel symbol virtual address from /proc/kallsyms */ -static unsigned long long get_kernel_sym(const char *symbol) -{ - const char *kallsyms = "/proc/kallsyms"; - char sym[128]; - char line[128]; - FILE *fp; - unsigned long long vaddr; - char type; - - fp = fopen(kallsyms, "r"); - if (!fp) { - fprintf(stderr, "Cannot open %s\n", kallsyms); - return 0; - } - - while(fgets(line, sizeof(line), fp) != NULL) { - if (sscanf(line, "%llx %c %s", &vaddr, &type, sym) != 3) - continue; - if (strcmp(sym, symbol) == 0) { - dbgprintf("kernel symbol %s vaddr = %16llx\n", symbol, vaddr); - return vaddr; - } - } - - dbgprintf("Cannot get kernel %s symbol address\n", symbol); - return 0; -} - /* Retrieve info regarding virtual address kernel has been compiled for and * size of the kernel from /proc/kcore. Current /proc/kcore parsing from * from kexec-tools fails because of malformed elf notes. A kernel patch has |