mirror of
https://github.com/JakeHillion/drgn.git
synced 2024-12-22 09:13:06 +00:00
87b7292aa5
drgn is currently licensed as GPLv3+. Part of the long term vision for drgn is that other projects can use it as a library providing programmatic interfaces for debugger functionality. A more permissive license is better suited to this goal. We decided on LGPLv2.1+ as a good balance between software freedom and permissiveness. All contributors not employed by Meta were contacted via email and consented to the license change. The only exception was the author of commitc4fbf7e589("libdrgn: fix for compilation error"), who did not respond. That commit reverted a single line of code to one originally written by me in commit640b1c011d("libdrgn: embed DWARF index in DWARF info cache"). Signed-off-by: Omar Sandoval <osandov@osandov.com>
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
// Copyright (c) Meta Platforms, Inc. and affiliates.
|
|
// SPDX-License-Identifier: LGPL-2.1-or-later
|
|
|
|
#include <elf.h>
|
|
|
|
#include "platform.h" // IWYU pragma: associated
|
|
|
|
/*
|
|
* The ABI specification can be found at:
|
|
* https://developer.arm.com/architectures/system-architectures/software-standards/abi
|
|
* https://github.com/ARM-software/abi-aa/releases
|
|
*/
|
|
|
|
static struct drgn_error *
|
|
apply_elf_reloc_arm(const struct drgn_relocating_section *relocating,
|
|
uint64_t r_offset, uint32_t r_type, const int64_t *r_addend,
|
|
uint64_t sym_value)
|
|
{
|
|
switch (r_type) {
|
|
case R_ARM_NONE:
|
|
return NULL;
|
|
case R_ARM_ABS32:
|
|
return drgn_reloc_add32(relocating, r_offset, r_addend,
|
|
sym_value);
|
|
case R_ARM_REL32:
|
|
return drgn_reloc_add32(relocating, r_offset, r_addend,
|
|
sym_value
|
|
- (relocating->addr + r_offset));
|
|
default:
|
|
return DRGN_UNKNOWN_RELOCATION_TYPE(r_type);
|
|
}
|
|
}
|
|
|
|
const struct drgn_architecture_info arch_info_arm = {
|
|
.name = "Arm",
|
|
.arch = DRGN_ARCH_ARM,
|
|
.default_flags = DRGN_PLATFORM_IS_LITTLE_ENDIAN,
|
|
.register_by_name = drgn_register_by_name_unknown,
|
|
.apply_elf_reloc = apply_elf_reloc_arm,
|
|
};
|