[DTrace probe] is there a [portable] way to add section to elf executable?

[drug]

I'd like to add (and modify) section to ELF executable to implement 
DTrace probes. DTrace does it in probe assembly:
```
__asm__ __volatile__ (
	"990: nop
	.pushsection .note.stapsdt,\"?\",\"note\"
	.balign 4
	.4byte 992f-991f, 994f-993f, 3
	991: .asciz \"stapsdt\"
	992: .balign 4
	993: .8byte 990b
	.8byte _.stapsdt.base
	.8byte 0
	.asciz \"myapp\"
	.asciz \"func_call\"
	.asciz \"%n[_SDT_S1]@%[_SDT_A1] %n[_SDT_S2]@%[_SDT_A2]\"
	994: .balign 4
	.popsection"
	:: [_SDT_S1] "n" (SNIPPED_ONE),
	   [_SDT_A1] "nor" ((a)),
	   [_SDT_S2] "n" (SNIPPED_TWO),
	   [_SDT_A2] "nor" ((b))
);
```

So I need a way to add no op operation and define some data in 
`.note.stapsdt` section. This page https://dlang.org/spec/iasm.html does 
not contain any information about sections