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kexec-tools: get kexec running on MUSL and x86 hardware 

Couple of important upstream patches (slated for 2.0.15) that
are necessary for kexec to run on MUSL and on x86 hardware.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
owl
Philip Prindeville 2017-03-21 21:55:23 -06:00 committed by Felix Fietkau
parent 0b24850e97
commit dfacdc6a99
2 changed files with 211 additions and 0 deletions
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33
package/boot/kexec-tools/patches/120-fail-to-get-symbol-debug.patch Normal file
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@ -0,0 +1,33 @@
commit 263e45ccf27b21e9862cc538ed28978533d04e4b
Author: Baoquan He <bhe@redhat.com>
Date: Fri Mar 3 11:52:15 2017 +0800
Only print debug message when failed to serach for kernel symbol from /proc/kallsyms
Kernel symbol page_offset_base could be unavailable when mm KASLR code is
not compiled in kernel. It's inappropriate to print out error message
when failed to search for page_offset_base from /proc/kallsyms. Seems now
there is not a way to find out if mm KASLR is compiled in or not. An
alternative approach is only printing out debug message in get_kernel_sym
if failed to search a expected kernel symbol.
Do it in this patch, a simple fix.
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Pratyush Anand <panand@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c
index 88aeee3..c4cf201 100644
--- a/kexec/arch/i386/crashdump-x86.c
+++ b/kexec/arch/i386/crashdump-x86.c
@@ -127,7 +127,7 @@ static unsigned long long get_kernel_sym(const char *symbol)
}
}
- fprintf(stderr, "Cannot get kernel %s symbol address\n", symbol);
+ dbgprintf("Cannot get kernel %s symbol address\n", symbol);
return 0;
}

178
package/boot/kexec-tools/patches/130-dont-use-percentL.patch Normal file
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@ -0,0 +1,178 @@
commit f14881e87b1426d2c439e2fad9a1e03a3b35e196
Author: Philip Prindeville <philipp@redfish-solutions.com>
Date: Fri Mar 10 19:57:11 2017 -0700
Don't use %L width specifier with integer values
MUSL doesn't support %L except for floating-point arguments; therefore,
%ll must be used instead with integer arguments.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
diff --git a/kexec/arch/arm/kexec-arm.c b/kexec/arch/arm/kexec-arm.c
index 2194b7c..49f35b1 100644
--- a/kexec/arch/arm/kexec-arm.c
+++ b/kexec/arch/arm/kexec-arm.c
@@ -47,7 +47,7 @@ int get_memory_ranges(struct memory_range **range, int *ranges,
int count;
if (memory_ranges >= MAX_MEMORY_RANGES)
break;
- count = sscanf(line, "%Lx-%Lx : %n",
+ count = sscanf(line, "%llx-%llx : %n",
&start, &end, &consumed);
if (count != 2)
continue;
diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c
index c4cf201..285dea9 100644
--- a/kexec/arch/i386/crashdump-x86.c
+++ b/kexec/arch/i386/crashdump-x86.c
@@ -119,7 +119,7 @@ static unsigned long long get_kernel_sym(const char *symbol)
}
while(fgets(line, sizeof(line), fp) != NULL) {
- if (sscanf(line, "%Lx %c %s", &vaddr, &type, sym) != 3)
+ 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);
@@ -296,12 +296,12 @@ static int get_crash_memory_ranges(struct memory_range **range, int *ranges,
if (memory_ranges >= CRASH_MAX_MEMORY_RANGES)
break;
- count = sscanf(line, "%Lx-%Lx : %n",
+ count = sscanf(line, "%llx-%llx : %n",
&start, &end, &consumed);
if (count != 2)
continue;
str = line + consumed;
- dbgprintf("%016Lx-%016Lx : %s",
+ dbgprintf("%016llx-%016llx : %s",
start, end, str);
/* Only Dumping memory of type System RAM. */
if (memcmp(str, "System RAM\n", 11) == 0) {
@@ -778,7 +778,7 @@ static int get_crash_notes(int cpu, uint64_t *addr, uint64_t *len)
*addr = x86__pa(vaddr + (cpu * MAX_NOTE_BYTES));
*len = MAX_NOTE_BYTES;
- dbgprintf("crash_notes addr = %Lx\n",
+ dbgprintf("crash_notes addr = %llx\n",
(unsigned long long)*addr);
fclose(fp);
diff --git a/kexec/arch/i386/kexec-x86-common.c b/kexec/arch/i386/kexec-x86-common.c
index 3e97239..be03618 100644
--- a/kexec/arch/i386/kexec-x86-common.c
+++ b/kexec/arch/i386/kexec-x86-common.c
@@ -81,7 +81,7 @@ static int get_memory_ranges_proc_iomem(struct memory_range **range, int *ranges
int count;
if (memory_ranges >= MAX_MEMORY_RANGES)
break;
- count = sscanf(line, "%Lx-%Lx : %n",
+ count = sscanf(line, "%llx-%llx : %n",
&start, &end, &consumed);
if (count != 2)
continue;
diff --git a/kexec/arch/ia64/kexec-elf-rel-ia64.c b/kexec/arch/ia64/kexec-elf-rel-ia64.c
index 7f7c08c..500f247 100644
--- a/kexec/arch/ia64/kexec-elf-rel-ia64.c
+++ b/kexec/arch/ia64/kexec-elf-rel-ia64.c
@@ -155,6 +155,6 @@ void machine_apply_elf_rel(struct mem_ehdr *ehdr,
}
return;
overflow:
- die("overflow in relocation type %lu val %Lx\n",
+ die("overflow in relocation type %lu val %llx\n",
r_type, value);
}
diff --git a/kexec/arch/mips/crashdump-mips.c b/kexec/arch/mips/crashdump-mips.c
index 9c33599..6308ec8 100644
--- a/kexec/arch/mips/crashdump-mips.c
+++ b/kexec/arch/mips/crashdump-mips.c
@@ -173,7 +173,7 @@ static int get_crash_memory_ranges(struct memory_range **range, int *ranges)
int type, consumed, count;
if (memory_ranges >= CRASH_MAX_MEMORY_RANGES)
break;
- count = sscanf(line, "%Lx-%Lx : %n",
+ count = sscanf(line, "%llx-%llx : %n",
&start, &end, &consumed);
if (count != 2)
continue;
diff --git a/kexec/arch/mips/kexec-mips.c b/kexec/arch/mips/kexec-mips.c
index ee3cd3a..2e5b700 100644
--- a/kexec/arch/mips/kexec-mips.c
+++ b/kexec/arch/mips/kexec-mips.c
@@ -48,7 +48,7 @@ int get_memory_ranges(struct memory_range **range, int *ranges,
while (fgets(line, sizeof(line), fp) != 0) {
if (memory_ranges >= MAX_MEMORY_RANGES)
break;
- count = sscanf(line, "%Lx-%Lx : %n", &start, &end, &consumed);
+ count = sscanf(line, "%llx-%llx : %n", &start, &end, &consumed);
if (count != 2)
continue;
str = line + consumed;
diff --git a/kexec/arch/s390/kexec-s390.c b/kexec/arch/s390/kexec-s390.c
index f863483..33ba6b9 100644
--- a/kexec/arch/s390/kexec-s390.c
+++ b/kexec/arch/s390/kexec-s390.c
@@ -170,7 +170,7 @@ int get_memory_ranges_s390(struct memory_range memory_range[], int *ranges,
if (current_range == MAX_MEMORY_RANGES)
break;
- sscanf(line,"%Lx-%Lx : %n", &start, &end, &cons);
+ sscanf(line,"%llx-%llx : %n", &start, &end, &cons);
str = line+cons;
if ((memcmp(str, sys_ram, strlen(sys_ram)) == 0) ||
((memcmp(str, crash_kernel, strlen(crash_kernel)) == 0) &&
diff --git a/kexec/crashdump.c b/kexec/crashdump.c
index 15c1105..0b363c5 100644
--- a/kexec/crashdump.c
+++ b/kexec/crashdump.c
@@ -98,7 +98,7 @@ int get_crash_notes_per_cpu(int cpu, uint64_t *addr, uint64_t *len)
}
if (!fgets(line, sizeof(line), fp))
die("Cannot parse %s: %s\n", crash_notes, strerror(errno));
- count = sscanf(line, "%Lx", &temp);
+ count = sscanf(line, "%llx", &temp);
if (count != 1)
die("Cannot parse %s: %s\n", crash_notes, strerror(errno));
*addr = (uint64_t) temp;
@@ -112,7 +112,7 @@ int get_crash_notes_per_cpu(int cpu, uint64_t *addr, uint64_t *len)
if (!fgets(line, sizeof(line), fp))
die("Cannot parse %s: %s\n",
crash_notes_size, strerror(errno));
- count = sscanf(line, "%Lu", &temp);
+ count = sscanf(line, "%llu", &temp);
if (count != 1)
die("Cannot parse %s: %s\n",
crash_notes_size, strerror(errno));
@@ -120,7 +120,7 @@ int get_crash_notes_per_cpu(int cpu, uint64_t *addr, uint64_t *len)
fclose(fp);
}
- dbgprintf("%s: crash_notes addr = %Lx, size = %Lu\n", __FUNCTION__,
+ dbgprintf("%s: crash_notes addr = %llx, size = %llu\n", __FUNCTION__,
(unsigned long long)*addr, (unsigned long long)*len);
return 0;
@@ -141,7 +141,7 @@ static int get_vmcoreinfo(const char *kdump_info, uint64_t *addr, uint64_t *len)
if (!fgets(line, sizeof(line), fp))
die("Cannot parse %s: %s\n", kdump_info, strerror(errno));
- count = sscanf(line, "%Lx %Lx", &temp, &temp2);
+ count = sscanf(line, "%llx %llx", &temp, &temp2);
if (count != 2)
die("Cannot parse %s: %s\n", kdump_info, strerror(errno));
diff --git a/kexec/kexec-iomem.c b/kexec/kexec-iomem.c
index 485a2e8..7ec3853 100644
--- a/kexec/kexec-iomem.c
+++ b/kexec/kexec-iomem.c
@@ -44,7 +44,7 @@ int kexec_iomem_for_each_line(char *match,
die("Cannot open %s\n", iomem);
while(fgets(line, sizeof(line), fp) != 0) {
- count = sscanf(line, "%Lx-%Lx : %n", &start, &end, &consumed);
+ count = sscanf(line, "%llx-%llx : %n", &start, &end, &consumed);
if (count != 2)
continue;
str = line + consumed;