diff options
| -rw-r--r-- | arch/ppc/boot/ld.script | 3 | ||||
| -rw-r--r-- | arch/ppc/boot/openfirmware/Makefile | 5 | ||||
| -rw-r--r-- | arch/ppc/boot/openfirmware/common.c | 16 | ||||
| -rw-r--r-- | arch/ppc/boot/simple/Makefile | 4 | ||||
| -rw-r--r-- | arch/ppc/boot/utils/addSystemMap.c | 186 | ||||
| -rw-r--r-- | arch/ppc/kernel/setup.c | 7 | ||||
| -rw-r--r-- | arch/ppc/mm/init.c | 16 | ||||
| -rw-r--r-- | arch/ppc/xmon/xmon.c | 270 | ||||
| -rw-r--r-- | arch/ppc64/xmon/xmon.c | 9 |
9 files changed, 84 insertions, 432 deletions
diff --git a/arch/ppc/boot/ld.script b/arch/ppc/boot/ld.script index 6ee602d..9362193 100644 --- a/arch/ppc/boot/ld.script +++ b/arch/ppc/boot/ld.script @@ -58,9 +58,6 @@ SECTIONS *(.ramdisk) __ramdisk_end = .; . = ALIGN(4096); - __sysmap_begin = .; - *(.sysmap) - __sysmap_end = .; CONSTRUCTORS } _edata = .; diff --git a/arch/ppc/boot/openfirmware/Makefile b/arch/ppc/boot/openfirmware/Makefile index 4eacbd8..0341523 100644 --- a/arch/ppc/boot/openfirmware/Makefile +++ b/arch/ppc/boot/openfirmware/Makefile @@ -54,13 +54,10 @@ $(images)/ramdisk.image.gz: @echo ' RAM disk image must be provided separately' @/bin/false -objcpxmon-$(CONFIG_XMON) := --add-section=.sysmap=System.map \ - --set-section-flags=.sysmap=contents,alloc,load,readonly,data quiet_cmd_genimage = GEN $@ cmd_genimage = $(OBJCOPY) -R .comment \ --add-section=.image=$(images)/vmlinux.gz \ - --set-section-flags=.image=contents,alloc,load,readonly,data \ - $(objcpxmon-y) $< $@ + --set-section-flags=.image=contents,alloc,load,readonly,data $< $@ targets += image.o $(obj)/image.o: $(obj)/dummy.o $(images)/vmlinux.gz FORCE diff --git a/arch/ppc/boot/openfirmware/common.c b/arch/ppc/boot/openfirmware/common.c index 9e69527..0f46756 100644 --- a/arch/ppc/boot/openfirmware/common.c +++ b/arch/ppc/boot/openfirmware/common.c @@ -15,7 +15,6 @@ #include <asm/page.h> /* Information from the linker */ -extern char __sysmap_begin, __sysmap_end; extern int strcmp(const char *s1, const char *s2); extern char *avail_ram, *avail_high; @@ -116,14 +115,8 @@ void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp) void make_bi_recs(unsigned long addr, char *name, unsigned int mach, unsigned long progend) { - unsigned long sysmap_size; struct bi_record *rec; - /* Figure out the size of a possible System.map we're going to - * pass along. - * */ - sysmap_size = (unsigned long)(&__sysmap_end) - - (unsigned long)(&__sysmap_begin); /* leave a 1MB gap then align to the next 1MB boundary */ addr = _ALIGN(addr+ (1<<20) - 1, (1<<20)); @@ -147,15 +140,6 @@ void make_bi_recs(unsigned long addr, char *name, unsigned int mach, rec->size = sizeof(struct bi_record) + 2 * sizeof(unsigned long); rec = (struct bi_record *)((unsigned long)rec + rec->size); - if (sysmap_size) { - rec->tag = BI_SYSMAP; - rec->data[0] = (unsigned long)(&__sysmap_begin); - rec->data[1] = sysmap_size; - rec->size = sizeof(struct bi_record) + 2 * - sizeof(unsigned long); - rec = (struct bi_record *)((unsigned long)rec + rec->size); - } - rec->tag = BI_LAST; rec->size = sizeof(struct bi_record); rec = (struct bi_record *)((unsigned long)rec + rec->size); diff --git a/arch/ppc/boot/simple/Makefile b/arch/ppc/boot/simple/Makefile index c28061a..991b4cb 100644 --- a/arch/ppc/boot/simple/Makefile +++ b/arch/ppc/boot/simple/Makefile @@ -203,7 +203,7 @@ $(obj)/zvmlinux: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \ $(obj)/dummy.o $(obj)/image.o $(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS) $(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \ - -R .stabstr -R .ramdisk -R .sysmap + -R .stabstr -R .ramdisk $(obj)/zvmlinux.initrd: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \ $(images)/vmlinux.gz $(obj)/dummy.o @@ -215,7 +215,7 @@ $(obj)/zvmlinux.initrd: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \ $(obj)/dummy.o $(obj)/image.o $(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS) $(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \ - -R .stabstr -R .sysmap + -R .stabstr # Sort-of dummy rules, that let us format the image we want. zImage: $(images)/$(zimage-y) $(obj)/zvmlinux diff --git a/arch/ppc/boot/utils/addSystemMap.c b/arch/ppc/boot/utils/addSystemMap.c deleted file mode 100644 index 4654f89..0000000 --- a/arch/ppc/boot/utils/addSystemMap.c +++ /dev/null @@ -1,186 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <byteswap.h> -#include <sys/types.h> -#include <sys/stat.h> - -void xlate( char * inb, char * trb, unsigned len ) -{ - unsigned i; - for ( i=0; i<len; ++i ) { - char c = *inb++; - char c1 = c >> 4; - char c2 = c & 0xf; - if ( c1 > 9 ) - c1 = c1 + 'A' - 10; - else - c1 = c1 + '0'; - if ( c2 > 9 ) - c2 = c2 + 'A' - 10; - else - c2 = c2 + '0'; - *trb++ = c1; - *trb++ = c2; - } - *trb = 0; -} - -#define ElfHeaderSize (64 * 1024) -#define ElfPages (ElfHeaderSize / 4096) -#define KERNELBASE (0xc0000000) - -void get4k( /*istream *inf*/FILE *file, char *buf ) -{ - unsigned j; - unsigned num = fread(buf, 1, 4096, file); - for ( j=num; j<4096; ++j ) - buf[j] = 0; -} - -void put4k( /*ostream *outf*/FILE *file, char *buf ) -{ - fwrite(buf, 1, 4096, file); -} - -int main(int argc, char **argv) -{ - char inbuf[4096]; - FILE *ramDisk = NULL; - FILE *inputVmlinux = NULL; - FILE *outputVmlinux = NULL; - unsigned i = 0; - unsigned long ramFileLen = 0; - unsigned long ramLen = 0; - unsigned long roundR = 0; - unsigned long kernelLen = 0; - unsigned long actualKernelLen = 0; - unsigned long round = 0; - unsigned long roundedKernelLen = 0; - unsigned long ramStartOffs = 0; - unsigned long ramPages = 0; - unsigned long roundedKernelPages = 0; - if ( argc < 2 ) { - printf("Name of System Map file missing.\n"); - exit(1); - } - - if ( argc < 3 ) { - printf("Name of vmlinux file missing.\n"); - exit(1); - } - - if ( argc < 4 ) { - printf("Name of vmlinux output file missing.\n"); - exit(1); - } - - ramDisk = fopen(argv[1], "r"); - if ( ! ramDisk ) { - printf("System Map file \"%s\" failed to open.\n", argv[1]); - exit(1); - } - inputVmlinux = fopen(argv[2], "r"); - if ( ! inputVmlinux ) { - printf("vmlinux file \"%s\" failed to open.\n", argv[2]); - exit(1); - } - outputVmlinux = fopen(argv[3], "w"); - if ( ! outputVmlinux ) { - printf("output vmlinux file \"%s\" failed to open.\n", argv[3]); - exit(1); - } - fseek(ramDisk, 0, SEEK_END); - ramFileLen = ftell(ramDisk); - fseek(ramDisk, 0, SEEK_SET); - printf("%s file size = %ld\n", argv[1], ramFileLen); - - ramLen = ramFileLen; - - roundR = 4096 - (ramLen % 4096); - if ( roundR ) { - printf("Rounding System Map file up to a multiple of 4096, adding %ld\n", roundR); - ramLen += roundR; - } - - printf("Rounded System Map size is %ld\n", ramLen); - fseek(inputVmlinux, 0, SEEK_END); - kernelLen = ftell(inputVmlinux); - fseek(inputVmlinux, 0, SEEK_SET); - printf("kernel file size = %ld\n", kernelLen); - if ( kernelLen == 0 ) { - printf("You must have a linux kernel specified as argv[2]\n"); - exit(1); - } - - actualKernelLen = kernelLen - ElfHeaderSize; - - printf("actual kernel length (minus ELF header) = %ld\n", actualKernelLen); - - round = actualKernelLen % 4096; - roundedKernelLen = actualKernelLen; - if ( round ) - roundedKernelLen += (4096 - round); - - printf("actual kernel length rounded up to a 4k multiple = %ld\n", roundedKernelLen); - - ramStartOffs = roundedKernelLen; - ramPages = ramLen / 4096; - - printf("System map pages to copy = %ld\n", ramPages); - - // Copy 64K ELF header - for (i=0; i<(ElfPages); ++i) { - get4k( inputVmlinux, inbuf ); - put4k( outputVmlinux, inbuf ); - } - - - - roundedKernelPages = roundedKernelLen / 4096; - - fseek(inputVmlinux, ElfHeaderSize, SEEK_SET); - - { - for ( i=0; i<roundedKernelPages; ++i ) { - get4k( inputVmlinux, inbuf ); - if ( i == 0 ) { - unsigned long * p; - printf("Storing embedded_sysmap_start at 0x3c\n"); - p = (unsigned long *)(inbuf + 0x3c); - -#if (BYTE_ORDER == __BIG_ENDIAN) - *p = ramStartOffs; -#else - *p = bswap_32(ramStartOffs); -#endif - - printf("Storing embedded_sysmap_end at 0x44\n"); - p = (unsigned long *)(inbuf + 0x44); -#if (BYTE_ORDER == __BIG_ENDIAN) - *p = ramStartOffs + ramFileLen; -#else - *p = bswap_32(ramStartOffs + ramFileLen); -#endif - } - put4k( outputVmlinux, inbuf ); - } - } - - { - for ( i=0; i<ramPages; ++i ) { - get4k( ramDisk, inbuf ); - put4k( outputVmlinux, inbuf ); - } - } - - - fclose(ramDisk); - fclose(inputVmlinux); - fclose(outputVmlinux); - /* Set permission to executable */ - chmod(argv[3], S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH); - - return 0; - -} - diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c index c344c66..c42f753 100644 --- a/arch/ppc/kernel/setup.c +++ b/arch/ppc/kernel/setup.c @@ -61,8 +61,6 @@ extern void power4_idle(void); extern boot_infos_t *boot_infos; struct ide_machdep_calls ppc_ide_md; -char *sysmap; -unsigned long sysmap_size; /* Used with the BI_MEMSIZE bootinfo parameter to store the memory size value reported by the boot loader. */ @@ -578,11 +576,6 @@ void parse_bootinfo(struct bi_record *rec) case BI_CMD_LINE: strlcpy(cmd_line, (void *)data, sizeof(cmd_line)); break; - case BI_SYSMAP: - sysmap = (char *)((data[0] >= (KERNELBASE)) ? data[0] : - (data[0]+KERNELBASE)); - sysmap_size = data[1]; - break; #ifdef CONFIG_BLK_DEV_INITRD case BI_INITRD: initrd_start = data[0] + KERNELBASE; diff --git a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c index c8529d0..334ef41 100644 --- a/arch/ppc/mm/init.c +++ b/arch/ppc/mm/init.c @@ -96,9 +96,6 @@ extern struct task_struct *current_set[NR_CPUS]; char *klimit = _end; struct mem_pieces phys_avail; -extern char *sysmap; -extern unsigned long sysmap_size; - /* * this tells the system to map all of ram with the segregs * (i.e. page tables) instead of the bats. @@ -442,12 +439,6 @@ void __init mem_init(void) if (agp_special_page) SetPageReserved(virt_to_page(agp_special_page)); #endif - if ( sysmap ) - for (addr = (unsigned long)sysmap; - addr < PAGE_ALIGN((unsigned long)sysmap+sysmap_size) ; - addr += PAGE_SIZE) - SetPageReserved(virt_to_page(addr)); - for (addr = PAGE_OFFSET; addr < (unsigned long)high_memory; addr += PAGE_SIZE) { if (!PageReserved(virt_to_page(addr))) @@ -482,9 +473,7 @@ void __init mem_init(void) codepages<< (PAGE_SHIFT-10), datapages<< (PAGE_SHIFT-10), initpages<< (PAGE_SHIFT-10), (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10))); - if (sysmap) - printk("System.map loaded at 0x%08x for debugger, size: %ld bytes\n", - (unsigned int)sysmap, sysmap_size); + #ifdef CONFIG_PPC_PMAC if (agp_special_page) printk(KERN_INFO "AGP special page: 0x%08lx\n", agp_special_page); @@ -534,9 +523,6 @@ set_phys_avail(unsigned long total_memory) if (rtas_data) mem_pieces_remove(&phys_avail, rtas_data, rtas_size, 1); #endif - /* remove the sysmap pages from the available memory */ - if (sysmap) - mem_pieces_remove(&phys_avail, __pa(sysmap), sysmap_size, 1); #ifdef CONFIG_PPC_PMAC /* Because of some uninorth weirdness, we need a page of * memory as high as possible (it must be outside of the diff --git a/arch/ppc/xmon/xmon.c b/arch/ppc/xmon/xmon.c index 8565f49..be7869e 100644 --- a/arch/ppc/xmon/xmon.c +++ b/arch/ppc/xmon/xmon.c @@ -9,6 +9,7 @@ #include <linux/smp.h> #include <linux/interrupt.h> #include <linux/bitops.h> +#include <linux/kallsyms.h> #include <asm/ptrace.h> #include <asm/string.h> #include <asm/prom.h> @@ -93,8 +94,7 @@ static void take_input(char *); static unsigned read_spr(int); static void write_spr(int, unsigned); static void super_regs(void); -static void print_sysmap(void); -static void sysmap_lookup(void); +static void symbol_lookup(void); static void remove_bpts(void); static void insert_bpts(void); static struct bpt *at_breakpoint(unsigned pc); @@ -103,7 +103,6 @@ static void cacheflush(void); #ifdef CONFIG_SMP static void cpu_cmd(void); #endif /* CONFIG_SMP */ -static int pretty_print_addr(unsigned long addr); static void csum(void); #ifdef CONFIG_BOOTX_TEXT static void vidcmds(void); @@ -120,8 +119,6 @@ extern void longjmp(u_int *, int); extern void xmon_enter(void); extern void xmon_leave(void); -extern char* xmon_find_symbol(unsigned long addr, unsigned long* saddr); -extern unsigned long xmon_symbol_to_addr(char* symbol); static unsigned start_tb[NR_CPUS][2]; static unsigned stop_tb[NR_CPUS][2]; @@ -148,7 +145,6 @@ Commands:\n\ mm move a block of memory\n\ ms set a block of memory\n\ md compare two blocks of memory\n\ - M print System.map\n\ r print registers\n\ S print special registers\n\ t print backtrace\n\ @@ -175,6 +171,35 @@ extern inline void __delay(unsigned int loops) "r" (loops) : "ctr"); } +/* Print an address in numeric and symbolic form (if possible) */ +static void xmon_print_symbol(unsigned long address, const char *mid, + const char *after) +{ + char *modname; + const char *name = NULL; + unsigned long offset, size; + static char tmpstr[128]; + + printf("%.8lx", address); + if (setjmp(bus_error_jmp) == 0) { + debugger_fault_handler = handle_fault; + sync(); + name = kallsyms_lookup(address, &size, &offset, &modname, + tmpstr); + sync(); + /* wait a little while to see if we get a machine check */ + __delay(200); + } + debugger_fault_handler = NULL; + + if (name) { + printf("%s%s+%#lx/%#lx", mid, name, offset, size); + if (modname) + printf(" [%s]", modname); + } + printf("%s", after); +} + static void get_tb(unsigned *p) { unsigned hi, lo, hiagain; @@ -454,7 +479,7 @@ cmds(struct pt_regs *excp) dump(); break; case 'l': - sysmap_lookup(); + symbol_lookup(); break; case 'r': if (excp != NULL) @@ -466,9 +491,6 @@ cmds(struct pt_regs *excp) else excprint(excp); break; - case 'M': - print_sysmap(); - break; case 'S': super_regs(); break; @@ -825,20 +847,19 @@ backtrace(struct pt_regs *excp) for (; sp != 0; sp = stack[0]) { if (mread(sp, stack, sizeof(stack)) != sizeof(stack)) break; - pretty_print_addr(stack[1]); - printf(" "); + printf("[%.8lx] ", stack); + xmon_print_symbol(stack[1], " ", "\n"); if (stack[1] == (unsigned) &ret_from_except || stack[1] == (unsigned) &ret_from_except_full || stack[1] == (unsigned) &ret_from_syscall) { if (mread(sp+16, ®s, sizeof(regs)) != sizeof(regs)) break; - printf("\nexception:%x [%x] %x ", regs.trap, sp+16, + printf("exception:%x [%x] %x\n", regs.trap, sp+16, regs.nip); sp = regs.gpr[1]; if (mread(sp, stack, sizeof(stack)) != sizeof(stack)) break; } - printf("\n"); } } @@ -859,11 +880,10 @@ excprint(struct pt_regs *fp) #ifdef CONFIG_SMP printf("cpu %d: ", smp_processor_id()); #endif /* CONFIG_SMP */ - printf("vector: %x at pc = ", fp->trap); - pretty_print_addr(fp->nip); - printf(", lr = "); - pretty_print_addr(fp->link); - printf("\nmsr = %x, sp = %x [%x]\n", fp->msr, fp->gpr[1], fp); + printf("vector: %x at pc=", fp->trap); + xmon_print_symbol(fp->nip, ": ", ", lr="); + xmon_print_symbol(fp->link, ": ", "\n"); + printf("msr = %x, sp = %x [%x]\n", fp->msr, fp->gpr[1], fp); trap = TRAP(fp); if (trap == 0x300 || trap == 0x600) printf("dar = %x, dsisr = %x\n", fp->dar, fp->dsisr); @@ -951,24 +971,6 @@ extern char exc_prolog; extern char dec_exc; void -print_sysmap(void) -{ - extern char *sysmap; - if ( sysmap ) { - printf("System.map: \n"); - if( setjmp(bus_error_jmp) == 0 ) { - debugger_fault_handler = handle_fault; - sync(); - xmon_puts(sysmap); - sync(); - } - debugger_fault_handler = NULL; - } - else - printf("No System.map\n"); -} - -void super_regs(void) { int i, cmd; @@ -1738,7 +1740,7 @@ scanhex(unsigned *vp) printf("invalid register name '%%%s'\n", regname); return 0; } else if (c == '$') { - static char symname[64]; + static char symname[128]; int i; for (i=0; i<63; i++) { c = inchar(); @@ -1749,7 +1751,14 @@ scanhex(unsigned *vp) symname[i] = c; } symname[i++] = 0; - *vp = xmon_symbol_to_addr(symname); + *vp = 0; + if (setjmp(bus_error_jmp) == 0) { + debugger_fault_handler = handle_fault; + sync(); + *vp = kallsyms_lookup_name(symname); + sync(); + } + debugger_fault_handler = NULL; if (!(*vp)) { printf("unknown symbol\n"); return 0; @@ -1840,169 +1849,34 @@ take_input(char *str) lineptr = str; } -void -sysmap_lookup(void) +static void +symbol_lookup(void) { int type = inchar(); unsigned addr; - static char tmp[64]; - char* cur; - - extern char *sysmap; - extern unsigned long sysmap_size; - if ( !sysmap || !sysmap_size ) - return; - - switch(type) { - case 'a': - if (scanhex(&addr)) { - pretty_print_addr(addr); - printf("\n"); - } - termch = 0; - break; - case 's': - getstring(tmp, 64); - if( setjmp(bus_error_jmp) == 0 ) { - debugger_fault_handler = handle_fault; - sync(); - cur = sysmap; - do { - cur = strstr(cur, tmp); - if (cur) { - static char res[64]; - char *p, *d; - p = cur; - while(p > sysmap && *p != 10) - p--; - if (*p == 10) p++; - d = res; - while(*p && p < (sysmap + sysmap_size) && *p != 10) - *(d++) = *(p++); - *(d++) = 0; - printf("%s\n", res); - cur++; - } - } while (cur); - sync(); - } - debugger_fault_handler = NULL; - termch = 0; - break; - } -} + static char tmp[128]; -static int -pretty_print_addr(unsigned long addr) -{ - char *sym; - unsigned long saddr; - - printf("%08x", addr); - sym = xmon_find_symbol(addr, &saddr); - if (sym) - printf(" (%s+0x%x)", sym, addr-saddr); - return (sym != 0); -} - -char* -xmon_find_symbol(unsigned long addr, unsigned long* saddr) -{ - static char rbuffer[64]; - char *p, *ep, *limit; - unsigned long prev, next; - char* psym; - - extern char *sysmap; - extern unsigned long sysmap_size; - if ( !sysmap || !sysmap_size ) - return NULL; - - prev = 0; - psym = NULL; - p = sysmap; - limit = p + sysmap_size; - if( setjmp(bus_error_jmp) == 0 ) { - debugger_fault_handler = handle_fault; - sync(); - do { - next = simple_strtoul(p, &p, 16); - if (next > addr && prev <= addr) { - if (!psym) - goto bail; - ep = rbuffer; - p = psym; - while(*p && p < limit && *p == 32) - p++; - while(*p && p < limit && *p != 10 && (ep - rbuffer) < 63) - *(ep++) = *(p++); - *(ep++) = 0; - if (saddr) - *saddr = prev; - debugger_fault_handler = NULL; - return rbuffer; - } - prev = next; - psym = p; - while(*p && p < limit && *p != 10) - p++; - if (*p) p++; - } while(*p && p < limit && next); -bail: - sync(); + switch (type) { + case 'a': + if (scanhex(&addr)) + xmon_print_symbol(addr, ": ", "\n"); + termch = 0; + break; + case 's': + getstring(tmp, 64); + if (setjmp(bus_error_jmp) == 0) { + debugger_fault_handler = handle_fault; + sync(); + addr = kallsyms_lookup_name(tmp); + if (addr) + printf("%s: %lx\n", tmp, addr); + else + printf("Symbol '%s' not found.\n", tmp); + sync(); + } + debugger_fault_handler = NULL; + termch = 0; + break; } - debugger_fault_handler = NULL; - return NULL; } -unsigned long -xmon_symbol_to_addr(char* symbol) -{ - char *p, *cur; - char *match = NULL; - int goodness = 0; - int result = 0; - - extern char *sysmap; - extern unsigned long sysmap_size; - if ( !sysmap || !sysmap_size ) - return 0; - - if( setjmp(bus_error_jmp) == 0 ) { - debugger_fault_handler = handle_fault; - sync(); - cur = sysmap; - while(cur) { - cur = strstr(cur, symbol); - if (cur) { - int gd = 1; - - /* best match if equal, better match if - * begins with - */ - if (cur == sysmap || *(cur-1) == ' ') { - gd++; - if (cur[strlen(symbol)] == 10) - gd++; - } - if (gd > goodness) { - match = cur; - goodness = gd; - if (gd == 3) - break; - } - cur++; - } - } - if (goodness) { - p = match; - while(p > sysmap && *p != 10) - p--; - if (*p == 10) p++; - result = simple_strtoul(p, &p, 16); - } - sync(); - } - debugger_fault_handler = NULL; - return result; -} diff --git a/arch/ppc64/xmon/xmon.c b/arch/ppc64/xmon/xmon.c index 3c0ccb2..7f6e13a 100644 --- a/arch/ppc64/xmon/xmon.c +++ b/arch/ppc64/xmon/xmon.c @@ -2247,7 +2247,14 @@ scanhex(unsigned long *vp) tmpstr[i] = c; } tmpstr[i++] = 0; - *vp = kallsyms_lookup_name(tmpstr); + *vp = 0; + if (setjmp(bus_error_jmp) == 0) { + catch_memory_errors = 1; + sync(); + *vp = kallsyms_lookup_name(tmpstr); + sync(); + } + catch_memory_errors = 0; if (!(*vp)) { printf("unknown symbol '%s'\n", tmpstr); return 0; |
