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Combine ELF sysvecs for MIPS to reduce code duplication.

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Reviewed by:	brooks, kevans
Tested on:	mips, mips64
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D22357
This commit is contained in:
John Baldwin 2019-11-15 19:00:20 +00:00
parent 254fe63897
commit 6b51bdf38c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=354744
1 changed files with 21 additions and 70 deletions
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91
sys/mips/mips/elf_machdep.c
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@ -51,73 +51,21 @@ __FBSDID("$FreeBSD$");
#include <machine/md_var.h>
#include <machine/cache.h>
static struct sysentvec elf_freebsd_sysvec = {
.sv_size = SYS_MAXSYSCALL,
.sv_table = sysent,
.sv_errsize = 0,
.sv_errtbl = NULL,
.sv_transtrap = NULL,
.sv_fixup = __elfN(freebsd_fixup),
.sv_sendsig = sendsig,
.sv_sigcode = sigcode,
.sv_szsigcode = &szsigcode,
#ifdef __mips_n64
struct sysentvec elf64_freebsd_sysvec = {
.sv_size = SYS_MAXSYSCALL,
.sv_table = sysent,
.sv_errsize = 0,
.sv_errtbl = NULL,
.sv_transtrap = NULL,
.sv_fixup = __elfN(freebsd_fixup),
.sv_sendsig = sendsig,
.sv_sigcode = sigcode,
.sv_szsigcode = &szsigcode,
.sv_name = "FreeBSD ELF64",
.sv_coredump = __elfN(coredump),
.sv_imgact_try = NULL,
.sv_minsigstksz = MINSIGSTKSZ,
.sv_minuser = VM_MIN_ADDRESS,
.sv_maxuser = VM_MAXUSER_ADDRESS,
.sv_usrstack = USRSTACK,
.sv_psstrings = PS_STRINGS,
.sv_stackprot = VM_PROT_ALL,
.sv_copyout_auxargs = __elfN(freebsd_copyout_auxargs),
.sv_copyout_strings = exec_copyout_strings,
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
.sv_flags = SV_ABI_FREEBSD | SV_LP64 | SV_ASLR,
.sv_set_syscall_retval = cpu_set_syscall_retval,
.sv_fetch_syscall_args = cpu_fetch_syscall_args,
.sv_syscallnames = syscallnames,
.sv_schedtail = NULL,
.sv_thread_detach = NULL,
.sv_trap = NULL,
};
static Elf64_Brandinfo freebsd_brand_info = {
.brand = ELFOSABI_FREEBSD,
.machine = EM_MIPS,
.compat_3_brand = "FreeBSD",
.emul_path = NULL,
.interp_path = "/libexec/ld-elf.so.1",
.sysvec = &elf64_freebsd_sysvec,
.interp_newpath = NULL,
.brand_note = &elf64_freebsd_brandnote,
.flags = BI_CAN_EXEC_DYN | BI_BRAND_NOTE
};
SYSINIT(elf64, SI_SUB_EXEC, SI_ORDER_ANY,
(sysinit_cfunc_t) elf64_insert_brand_entry,
&freebsd_brand_info);
void
elf64_dump_thread(struct thread *td __unused, void *dst __unused,
size_t *off __unused)
{
}
#else
struct sysentvec elf32_freebsd_sysvec = {
.sv_size = SYS_MAXSYSCALL,
.sv_table = sysent,
.sv_errsize = 0,
.sv_errtbl = NULL,
.sv_transtrap = NULL,
.sv_fixup = __elfN(freebsd_fixup),
.sv_sendsig = sendsig,
.sv_sigcode = sigcode,
.sv_szsigcode = &szsigcode,
.sv_name = "FreeBSD ELF32",
#endif
.sv_coredump = __elfN(coredump),
.sv_imgact_try = NULL,
.sv_minsigstksz = MINSIGSTKSZ,
@ -131,7 +79,11 @@ struct sysentvec elf32_freebsd_sysvec = {
.sv_setregs = exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
#ifdef __mips_n64
.sv_flags = SV_ABI_FREEBSD | SV_LP64 | SV_ASLR,
#else
.sv_flags = SV_ABI_FREEBSD | SV_ILP32 | SV_ASLR,
#endif
.sv_set_syscall_retval = cpu_set_syscall_retval,
.sv_fetch_syscall_args = cpu_fetch_syscall_args,
.sv_syscallnames = syscallnames,
@ -140,28 +92,27 @@ struct sysentvec elf32_freebsd_sysvec = {
.sv_trap = NULL,
};
static Elf32_Brandinfo freebsd_brand_info = {
static __ElfN(Brandinfo) freebsd_brand_info = {
.brand = ELFOSABI_FREEBSD,
.machine = EM_MIPS,
.compat_3_brand = "FreeBSD",
.emul_path = NULL,
.interp_path = "/libexec/ld-elf.so.1",
.sysvec = &elf32_freebsd_sysvec,
.sysvec = &elf_freebsd_sysvec,
.interp_newpath = NULL,
.brand_note = &elf32_freebsd_brandnote,
.brand_note = &__elfN(freebsd_brandnote),
.flags = BI_CAN_EXEC_DYN | BI_BRAND_NOTE
};
SYSINIT(elf32, SI_SUB_EXEC, SI_ORDER_FIRST,
(sysinit_cfunc_t) elf32_insert_brand_entry,
SYSINIT(elf, SI_SUB_EXEC, SI_ORDER_ANY,
(sysinit_cfunc_t) __elfN(insert_brand_entry),
&freebsd_brand_info);
void
elf32_dump_thread(struct thread *td __unused, void *dst __unused,
__elfN(dump_thread)(struct thread *td __unused, void *dst __unused,
size_t *off __unused)
{
}
#endif
/*
* The following MIPS relocation code for tracking multiple