9a05aa7fc4
22707-x2apic-preenabled-check.patch - bnc#641419 - L3: Xen: qemu-dm reports "xc_map_foreign_batch: mmap failed: Cannot allocate memory" 7434-qemu-rlimit-as.patch - Additional or upstream patches from Jan 22693-fam10-mmio-conf-base-protect.patch 22694-x86_64-no-weak.patch 22708-xenctx-misc.patch 21432-4.0-cpu-boot-failure.patch 22645-amd-flush-filter.patch qemu-fix-7433.patch - Maintain compatibility with the extid flag even though it is deprecated for both legacy and sxp config files. hv_extid_compatibility.patch - bnc#649209-improve suspend eventchn lock suspend_evtchn_lock.patch - Removed the hyper-v shim patches in favor of using the upstream version. - bnc#641419 - L3: Xen: qemu-dm reports "xc_map_foreign_batch: mmap failed: Cannot allocate memory" qemu-rlimit-as.patch - Upstream c/s 7433 to replace qemu_altgr_more.patch 7433-qemu-altgr.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=90
113 lines
3.2 KiB
Diff
113 lines
3.2 KiB
Diff
# HG changeset patch
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# User Keir Fraser <keir@xen.org>
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# Date 1294746099 0
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# Node ID 7926538a633297d65a5d6324bf9bd0eb158a6aff
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# Parent 2ff199e2842b7e4f08ea99558afc32536a77280c
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xenctx: misc adjustments
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- fix off-by-one errors during symbol insertion and lookup
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- don't store the symbol type, as it wasn't needed at all so far and
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is only needed now at parsing time
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- don't insert certain kinds of symbols
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Signed-off-by: Jan Beulich <jbeulich@novell.com>
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--- a/tools/xentrace/xenctx.c
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+++ b/tools/xentrace/xenctx.c
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@@ -19,6 +19,7 @@
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#include <unistd.h>
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#include <errno.h>
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#include <signal.h>
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+#include <ctype.h>
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#include <string.h>
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#include <inttypes.h>
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#include <getopt.h>
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@@ -58,7 +59,6 @@ int disp_tlb;
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struct symbol {
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guest_word_t address;
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- char type;
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char *name;
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struct symbol *next;
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} *symbol_table = NULL;
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@@ -112,12 +112,12 @@ static void insert_symbol(struct symbol
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/* The System.map is usually already sorted... */
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if (prev
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- && prev->address < symbol->address
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+ && prev->address <= symbol->address
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&& (!prev->next || prev->next->address > symbol->address)) {
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s = prev;
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} else {
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/* ... otherwise do crappy/slow search for the correct place */
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- while(s && s->next && s->next->address < symbol->address)
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+ while (s->next && s->next->address <= symbol->address)
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s = s->next;
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}
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@@ -130,13 +130,13 @@ static struct symbol *lookup_symbol(gues
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{
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struct symbol *s = symbol_table;
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- while(s && s->next && s->next->address < address)
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- s = s->next;
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+ if (!s)
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+ return NULL;
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- if (s && s->address < address)
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- return s;
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+ while (s->next && s->next->address < address)
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+ s = s->next;
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- return NULL;
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+ return s->next && s->next->address <= address ? s->next : s;
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}
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static void print_symbol(guest_word_t addr)
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@@ -159,7 +159,7 @@ static void print_symbol(guest_word_t ad
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static void read_symbol_table(const char *symtab)
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{
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- char line[256];
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+ char type, line[256];
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char *p;
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struct symbol *symbol;
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FILE *f;
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@@ -178,9 +178,13 @@ static void read_symbol_table(const char
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/* need more checks for syntax here... */
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symbol->address = strtoull(line, &p, 16);
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- p++;
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- symbol->type = *p++;
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- p++;
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+ if (!isspace(*p++))
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+ continue;
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+ type = *p++;
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+ if (!isalpha(type) && type != '?')
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+ continue;
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+ if (!isspace(*p++))
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+ continue;
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/* in the future we should handle the module name
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* being appended here, this would allow us to use
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@@ -190,7 +194,18 @@ static void read_symbol_table(const char
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p[strlen(p)-1] = '\0';
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symbol->name = strdup(p);
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- insert_symbol(symbol);
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+ switch (type) {
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+ case 'A': /* global absolute */
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+ case 'a': /* local absolute */
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+ break;
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+ case 'U': /* undefined */
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+ case 'v': /* undefined weak object */
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+ case 'w': /* undefined weak function */
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+ continue;
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+ default:
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+ insert_symbol(symbol);
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+ break;
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+ }
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if (strcmp(symbol->name, "_stext") == 0)
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kernel_stext = symbol->address;
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