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syscall: add kexec_file_load to the generated override header

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This makes __NR_kexec_file_load available on architectures where the kernel
UAPI headers don't define it, matching the runtime fallback path in
src/libc/kexec.c which is gated on #ifdef __NR_kexec_file_load.
This commit is contained in:
Daan De Meyer
2026-05-13 08:51:28 +02:00
parent fe18d94610
commit 5d60cd8539
2 changed files with 71 additions and 0 deletions
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src/include/override/sys/generate-syscall.py
+1
View File
@@ -7,6 +7,7 @@ import functools
# We only generate numbers for a dozen or so syscalls
SYSCALLS = [
'fchmodat2', # defined in glibc header since glibc-2.39
'kexec_file_load',
'open_tree_attr',
'quotactl_fd', # defined in glibc header since glibc-2.35
'removexattrat',
src/include/override/sys/syscall.h
+70
View File
@@ -124,6 +124,76 @@ static_assert(__NR_fchmodat2 == systemd_NR_fchmodat2, "");
# endif
#endif
#ifndef __IGNORE_kexec_file_load
# if defined(__aarch64__)
# define systemd_NR_kexec_file_load 294
# elif defined(__alpha__)
# define systemd_NR_kexec_file_load -1
# elif defined(__arc__) || defined(__tilegx__)
# define systemd_NR_kexec_file_load 294
# elif defined(__arm__)
# define systemd_NR_kexec_file_load 401
# elif defined(__i386__)
# define systemd_NR_kexec_file_load -1
# elif defined(__ia64__)
# define systemd_NR_kexec_file_load -1
# elif defined(__loongarch_lp64)
# define systemd_NR_kexec_file_load 294
# elif defined(__m68k__)
# define systemd_NR_kexec_file_load -1
# elif defined(_MIPS_SIM)
# if _MIPS_SIM == _MIPS_SIM_ABI32
# define systemd_NR_kexec_file_load -1
# elif _MIPS_SIM == _MIPS_SIM_NABI32
# define systemd_NR_kexec_file_load -1
# elif _MIPS_SIM == _MIPS_SIM_ABI64
# define systemd_NR_kexec_file_load -1
# else
# error "Unknown MIPS ABI"
# endif
# elif defined(__hppa__)
# define systemd_NR_kexec_file_load 355
# elif defined(__powerpc__)
# define systemd_NR_kexec_file_load 382
# elif defined(__riscv)
# if __riscv_xlen == 32
# define systemd_NR_kexec_file_load 294
# elif __riscv_xlen == 64
# define systemd_NR_kexec_file_load 294
# else
# error "Unknown RISC-V ABI"
# endif
# elif defined(__s390__)
# define systemd_NR_kexec_file_load 381
# elif defined(__sh__)
# define systemd_NR_kexec_file_load -1
# elif defined(__sparc__)
# define systemd_NR_kexec_file_load -1
# elif defined(__x86_64__)
# if defined(__ILP32__)
# define systemd_NR_kexec_file_load (320 | /* __X32_SYSCALL_BIT */ 0x40000000)
# else
# define systemd_NR_kexec_file_load 320
# endif
# elif !defined(missing_arch_template)
# warning "kexec_file_load() syscall number is unknown for your architecture"
# endif
/* may be an (invalid) negative number due to libseccomp, see PR 13319 */
# if defined __NR_kexec_file_load && __NR_kexec_file_load >= 0
# if defined systemd_NR_kexec_file_load
static_assert(__NR_kexec_file_load == systemd_NR_kexec_file_load, "");
# endif
# else
# if defined __NR_kexec_file_load
# undef __NR_kexec_file_load
# endif
# if defined systemd_NR_kexec_file_load && systemd_NR_kexec_file_load >= 0
# define __NR_kexec_file_load systemd_NR_kexec_file_load
# endif
# endif
#endif
#ifndef __IGNORE_open_tree_attr
# if defined(__aarch64__)
# define systemd_NR_open_tree_attr 467