24.10.2019 22:51, Iain Buclaw пишет:
On Thu, 24 Oct 2019 at 19:20, drug via D.gnu <d.gnu@puremagic.com> wrote:
On 10/24/19 8:01 PM, Iain Buclaw wrote:
You can do the following:
void somefunc()
{
asm {
"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\n"
:: [_SDT_S1] "n" (4),
[_SDT_A1] "nor" ((a)),
[_SDT_S2] "n" (4),
[_SDT_A2] "nor" ((b))
} // <= line 26
}
The instruction string can be generated at CTFE.
Unfortunately I doesn't work https://godbolt.org/z/ly2yBT
```
source/app.d:26:3: error: expression expected, not '}'
```
That's correct, because I forgot the semicolon (the hint is in the
latter message: found 'EOF' when expecting ';').
From what little information I'm going off on that macro, it seems
that you want it to do something like the following:
https://explore.dgnu.org/z/TtTcij
That's it! Thank you very much!
