Commit adace895 authored by Will Deacon's avatar Will Deacon Committed by Catalin Marinas

arm64: extable: sort the exception table at build time

As is done for other architectures, sort the exception table at
build-time rather than during boot.

Since sortextable appears to be a standalone C program relying on the
host elf.h to provide EM_AARCH64, I've had to add a conditional check in
order to allow cross-compilation on machines that aren't running a
bleeding-edge libc-dev.
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 73150c98
......@@ -7,6 +7,7 @@ config ARM64
select ARM_AMBA
select ARM_ARCH_TIMER
select ARM_GIC
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
select GENERIC_CLOCKEVENTS
......
......@@ -56,7 +56,7 @@ SECTIONS
}
RO_DATA(PAGE_SIZE)
EXCEPTION_TABLE(8)
_etext = .; /* End of text and rodata section */
. = ALIGN(PAGE_SIZE);
......@@ -98,14 +98,6 @@ SECTIONS
CACHELINE_ALIGNED_DATA(64)
READ_MOSTLY_DATA(64)
/*
* The exception fixup table (might need resorting at runtime)
*/
. = ALIGN(32);
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
/*
* and the usual data section
*/
......
......@@ -31,6 +31,10 @@
#include <tools/be_byteshift.h>
#include <tools/le_byteshift.h>
#ifndef EM_AARCH64
#define EM_AARCH64 183
#endif
static int fd_map; /* File descriptor for file being modified. */
static int mmap_failed; /* Boolean flag. */
static void *ehdr_curr; /* current ElfXX_Ehdr * for resource cleanup */
......@@ -249,6 +253,7 @@ do_file(char const *const fname)
custom_sort = sort_relative_table;
break;
case EM_ARM:
case EM_AARCH64:
case EM_MIPS:
break;
} /* end switch */
......
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