| /linux/arch/s390/kernel/ |
| H A D | ftrace.c | 81 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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| H A D | uprobes.c | 142 unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline, in arch_uretprobe_hijack_return_addr() argument
148 regs->gprs[14] = trampoline; in arch_uretprobe_hijack_return_addr()
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| /linux/arch/x86/kernel/ |
| H A D | ftrace.c | 320 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()
386 ptr = (unsigned long *)(trampoline + size + RET_SIZE); in create_trampoline()
390 memcpy(&op_ptr, trampoline + op_offset, OP_REF_SIZE); in create_trampoline()
398 offset -= (unsigned long)trampoline + op_offset + OP_REF_SIZE; in create_trampoline()
403 memcpy(trampoline + op_offset, &op_ptr, OP_REF_SIZE); in create_trampoline()
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| /linux/Documentation/livepatch/ |
| H A D | reliable-stacktrace.rst | 163 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 D | Makefile | 38 $(OUTPUT)/trampoline-bti.o
49 $(OUTPUT)/trampoline-nobti.o
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| H A D | test.c | 107 static void __do_test(void (*trampoline)(void (*)(void)), in __do_test()
125 trampoline(fn); in __do_test()
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| /linux/kernel/trace/ |
| H A D | ftrace.c | 1119 if (op->trampoline && op->trampoline_size) in ftrace_ops_trampoline()
1120 if (addr >= op->trampoline && in ftrace_ops_trampoline()
1121 addr < op->trampoline + op->trampoline_size) { in ftrace_ops_trampoline()
1832 if (ftrace_rec_count(rec) == 1 && ops->trampoline) in __ftrace_hash_rec_update()
2242 (void *)ops->trampoline, in ftrace_bug()
2461 if (!op->trampoline) in ftrace_find_tramp_ops_any()
2479 if (op == op_exclude || !op->trampoline) in ftrace_find_tramp_ops_any_other()
2497 if (!op->trampoline) in ftrace_find_tramp_ops_next()
2544 if (!op->trampoline) in ftrace_find_tramp_ops_curr()
2674 if (FTRACE_WARN_ON(!ops || !ops->trampoline)) { in ftrace_get_addr_new()
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| /linux/drivers/gpu/drm/i915/ |
| H A D | i915_cmd_parser.h | 23 bool trampoline);
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| H A D | i915_cmd_parser.c | 1445 bool trampoline) in intel_engine_cmd_parser() argument
1470 if (!trampoline) in intel_engine_cmd_parser()
1534 if (trampoline) { in intel_engine_cmd_parser()
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| /linux/Documentation/admin-guide/ |
| H A D | syscall-user-dispatch.rst | 66 interface should make sure that at least the signal trampoline code is
68 trampoline code on the vDSO, that trampoline is never intercepted.
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| /linux/Documentation/arch/riscv/ |
| H A D | cmodx.rst | 35 By fixing down the first instruction, AUIPC, the range of the ftrace trampoline
39 pacthable function. The metadata is resolved at the first trampoline, then the
40 execution can be derect to another custom trampoline.
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| /linux/arch/powerpc/include/asm/ |
| H A D | module.h | 81 int module_trampoline_target(struct module *mod, unsigned long trampoline,
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| /linux/arch/x86/include/asm/ |
| H A D | boot.h | 96 void trampoline_32bit_src(void *trampoline, bool enable_5lvl);
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| /linux/arch/arm/boot/dts/intel/socfpga/ |
| H A D | socfpga_arria5.dtsi | 7 /* First 4KB has trampoline code for secondary cores. */
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| H A D | socfpga_cyclone5.dtsi | 7 /* First 4KB has trampoline code for secondary cores. */
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| /linux/arch/hexagon/kernel/ |
| H A D | Makefile | 8 obj-y += process.o trampoline.o reset.o ptrace.o vdso.o
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| /linux/Documentation/arch/powerpc/ |
| H A D | booting.rst | 53 trampoline located in arch/powerpc/kernel/prom_init.c to
57 the second method. This trampoline code runs in the
62 point is called by a) after the OF trampoline and can also be
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| /linux/include/linux/ |
| H A D | lsm_hooks.h | 53 void *trampoline; member
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| /linux/drivers/gpu/drm/i915/gem/ |
| H A D | i915_gem_execbuffer.c | 262 struct i915_vma *trampoline; /** trampoline used for chaining */ member
2267 struct i915_vma *shadow, *trampoline, *batch; in eb_parse() local
2319 trampoline = NULL; in eb_parse()
2321 trampoline = shadow; in eb_parse()
2346 shadow, trampoline); in eb_parse()
2354 eb->trampoline = trampoline; in eb_parse()
2405 if (eb->trampoline) { in eb_request_submit()
2409 i915_vma_offset(eb->trampoline) + in eb_request_submit()
3372 eb.trampoline = NULL; in i915_gem_do_execbuffer()
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| /linux/kernel/bpf/ |
| H A D | Makefile | 16 obj-$(CONFIG_BPF_JIT) += trampoline.o
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| H A D | trampoline.c | 903 if (!shim_link->trampoline) in bpf_shim_tramp_link_release()
906 WARN_ON_ONCE(bpf_trampoline_unlink_prog(&shim_link->link, shim_link->trampoline, NULL)); in bpf_shim_tramp_link_release()
907 bpf_trampoline_put(shim_link->trampoline); in bpf_shim_tramp_link_release()
1024 shim_link->trampoline = tr; in bpf_trampoline_link_cgroup_shim()
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| /linux/Documentation/trace/ |
| H A D | kprobes.rst | 113 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
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| /linux/tools/testing/selftests/bpf/ |
| H A D | README.rst | 31 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.
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| /linux/arch/x86/realmode/rm/ |
| H A D | trampoline_64.S | 159 # Setup trampoline 4 level pagetables
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| /linux/tools/testing/selftests/arm64/signal/ |
| H A D | README | 34 they are just fired using some simple included assembly trampoline code.
|