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Searched refs:trampoline (Results 1 – 25 of 35) sorted by relevance

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/linux/arch/x86/kernel/
H A Dftrace.c320 void *trampoline; in create_trampoline() local
349 trampoline = alloc_tramp(size + RET_SIZE + sizeof(void *)); in create_trampoline()
350 if (!trampoline) in create_trampoline()
357 ret = copy_from_kernel_nofault(trampoline, (void *)start_offset, size); in create_trampoline()
361 ip = trampoline + size; in create_trampoline()
370 ip = trampoline + (jmp_offset - start_offset); in create_trampoline()
382 text_poke_apply_relocation(trampoline, trampoline, size, in create_trampoline()
393 ptr = (unsigned long *)(trampoline + size + RET_SIZE); in create_trampoline()
397 memcpy(&op_ptr, trampoline + op_offset, OP_REF_SIZE); in create_trampoline()
405 offset -= (unsigned long)trampoline + op_offset + OP_REF_SIZE; in create_trampoline()
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/linux/arch/s390/kernel/
H A Dftrace.c81 static struct ftrace_hotpatch_trampoline *trampoline; in ftrace_init_nop() local
105 trampoline = (*next_trampoline)++; in ftrace_init_nop()
115 tmp.brasl_disp = (shared - (const char *)&trampoline->brasl_opc) / 2; in ftrace_init_nop()
118 s390_kernel_write(trampoline, &tmp, sizeof(tmp)); in ftrace_init_nop()
121 disp = ((char *)trampoline - (char *)rec->ip) / 2; in ftrace_init_nop()
130 struct ftrace_hotpatch_trampoline *trampoline; in ftrace_get_trampoline() local
138 trampoline = (void *)(rec->ip + disp); in ftrace_get_trampoline()
139 if (get_kernel_nofault(opc, &trampoline->brasl_opc)) in ftrace_get_trampoline()
143 return trampoline; in ftrace_get_trampoline()
176 struct ftrace_hotpatch_trampoline *trampoline; in ftrace_modify_trampoline_call() local
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/linux/Documentation/livepatch/
H A Dreliable-stacktrace.rst163 to intercept when that function returns with a return trampoline, e.g.
165 * An ftrace trampoline may modify the return address so that function graph
168 * A kprobes (or optprobes) trampoline may modify the return address so that
174 is altered by the trampoline, the unwinder may report the original return
175 address in place of the trampoline and report this as reliable. Otherwise, an
180 trampoline or return trampoline. For example, considering the x86_64
181 'return_to_handler' return trampoline:
213 trampoline moves this into rdi before jumping to it.
232 with a JMP instruction which targets the associated optprobe trampoline. When
233 the probe is hit, the CPU will branch to the optprobe trampoline, and the
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/linux/tools/testing/selftests/arm64/bti/
H A DMakefile38 $(OUTPUT)/trampoline-bti.o
49 $(OUTPUT)/trampoline-nobti.o
H A Dtest.c107 static void __do_test(void (*trampoline)(void (*)(void)), in __do_test()
125 trampoline(fn); in __do_test()
/linux/kernel/bpf/
H A Dtrampoline.c30 /* serializes access to trampoline tables */
34 * Keep 32 trampoline locks (5 bits) in the pool so trampoline_lock_all()
110 * trampoline's mutex is already locked. in bpf_tramp_ftrace_ops_func()
114 /* Instead of updating the trampoline here, we propagate in bpf_tramp_ftrace_ops_func()
117 * trampoline. in bpf_tramp_ftrace_ops_func()
294 * We allocate ftrace_ops object for each trampoline and it contains
295 * call site specific for that trampoline.
535 * with BTF_FMODEL_ARENA_ARG. Only the struct_ops indirect trampoline
613 /* the case of fmod_ret/fexit trampoline and CONFIG_PREEMPTION=y */ in bpf_tramp_image_put()
616 /* the case of fentry trampoline */ in bpf_tramp_image_put()
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H A DMakefile17 obj-$(CONFIG_BPF_JIT) += trampoline.o
/linux/drivers/gpu/drm/i915/
H A Di915_cmd_parser.h23 bool trampoline);
H A Di915_cmd_parser.c1445 bool trampoline) in intel_engine_cmd_parser() argument
1470 if (!trampoline) in intel_engine_cmd_parser()
1534 if (trampoline) { in intel_engine_cmd_parser()
/linux/arch/powerpc/include/asm/
H A Dmodule.h81 int module_trampoline_target(struct module *mod, unsigned long trampoline,
/linux/arch/x86/include/asm/
H A Dboot.h96 void trampoline_32bit_src(void *trampoline, bool enable_5lvl);
/linux/Documentation/admin-guide/
H A Dsyscall-user-dispatch.rst66 interface should make sure that at least the signal trampoline code is
68 trampoline code on the vDSO, that trampoline is never intercepted.
/linux/Documentation/arch/riscv/
H A Dcmodx.rst35 By fixing down the first instruction, AUIPC, the range of the ftrace trampoline
39 patchable function. The metadata is resolved at the first trampoline, then the
40 execution can be directed to another custom trampoline.
/linux/arch/arm/boot/dts/intel/socfpga/
H A Dsocfpga_arria5.dtsi7 /* First 4KB has trampoline code for secondary cores. */
H A Dsocfpga_cyclone5.dtsi7 /* First 4KB has trampoline code for secondary cores. */
/linux/kernel/trace/
H A Dftrace.c1134 if (op->trampoline && op->trampoline_size) in ftrace_ops_trampoline()
1135 if (addr >= op->trampoline && in ftrace_ops_trampoline()
1136 addr < op->trampoline + op->trampoline_size) { in ftrace_ops_trampoline()
1865 if (ftrace_rec_count(rec) == 1 && ops->trampoline) in __ftrace_hash_rec_update()
2275 (void *)ops->trampoline, in ftrace_bug()
2494 if (!op->trampoline) in ftrace_find_tramp_ops_any()
2512 if (op == op_exclude || !op->trampoline) in ftrace_find_tramp_ops_any_other()
2530 if (!op->trampoline) in ftrace_find_tramp_ops_next()
2577 if (!op->trampoline) in ftrace_find_tramp_ops_curr()
2708 if (FTRACE_WARN_ON(!ops || !ops->trampoline)) { in ftrace_get_addr_new()
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/linux/arch/hexagon/kernel/
H A DMakefile8 obj-y += process.o trampoline.o reset.o ptrace.o vdso.o
/linux/Documentation/trace/
H A Dkprobes.rst113 the return address with the address of a "trampoline." The trampoline
115 At boot time, Kprobes registers a kprobe at the trampoline.
118 passes to the trampoline and that probe is hit. Kprobes' trampoline
216 - a call to the trampoline code which calls user's probe handlers.
584 address with the trampoline's address, stack backtraces and calls
585 to __builtin_return_address() will typically yield the trampoline's
/linux/tools/testing/selftests/bpf/
H A DREADME.rst31 trampoline support on IBM's s390x architecture. For cases like this, an in-tree
43 available, summarizes the underlying problem. A value of ``trampoline``, for
44 example, indicates that lack of trampoline support is causing the test to fail.
/linux/tools/testing/selftests/arm64/signal/
H A DREADME34 they are just fired using some simple included assembly trampoline code.
/linux/arch/x86/realmode/rm/
H A Dtrampoline_64.S159 # Setup trampoline 4 level pagetables
/linux/security/
H A Dlsm_init.c349 __static_call_update(scall->key, scall->trampoline, in lsm_static_call_init()
/linux/arch/loongarch/kernel/
H A Dunwind_orc.c135 offset = ip - ops->trampoline; in orc_ftrace_find()
/linux/arch/sh/mm/
H A DKconfig111 From the kernel side this is used for the signal trampoline.
/linux/include/linux/
H A Dftrace.h459 unsigned long trampoline; member

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