Re: Re[2]: [9fans] Strange 'uintptr' behavior
Ah, thanks! Going to try... út 25. 1. 2022 v 9:28 odesílatel Alex Musolino napsal: > It didn't always work on 9front. Check the dump! > > After bisecting the dump and looking through the git log, I suspect > that 9front changeset 71939a82 [1] will fix it for you. > > [1] > https://git.9front.org/plan9front/plan9front/71939a82ccc505b0baa990d7fe17e7085d0ab8fc/commit.html > -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tb5fe0dc43447ab2c-Ma557fc25c99094fa66c5fa53 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
Re[2]: [9fans] Strange 'uintptr' behavior
It didn't always work on 9front. Check the dump! After bisecting the dump and looking through the git log, I suspect that 9front changeset 71939a82 [1] will fix it for you. [1] https://git.9front.org/plan9front/plan9front/71939a82ccc505b0baa990d7fe17e7085d0ab8fc/commit.html -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tb5fe0dc43447ab2c-M7ca511b172875758e866dd78 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
Re[2]: [9fans] Strange 'uintptr' behavior
i've tried it again and i can compile both versions 1) and 2) without error at
9front distro of plan9.
do you use original 4th release of plan9 or 9front distro?
download link of 9front iso:
http://9front.org/iso/9front-8593.acc504c319a4b4188479cfa602e40cb6851c0528.amd64.iso.gz
1)
#include
#include
uintptr frst[] = {nil, nil, nil, nil, nil};
uintptr scnd[] = {nil, nil, frst, [1]};
void main(void) {
exits(nil);
}
2)
#include
#include
void* frst[] = {nil, nil, nil, nil, nil};
void* scnd[] = {nil, nil, frst, [1]};
void main(void) {
exits(nil);
}
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Re: [9fans] Strange 'uintptr' behavior
Sorry, I was not precise enough.
I prepared arrays in the initiated data segment:
This program cannot be compiled:
#include
#include
uintptr frst[] = {nil, nil, nil, nil, nil};
uintptr scnd[] = {nil, nil, frst, [1]};
void main(void) {
exits(nil);
}
...because of:
cpu% 5c t.c
t.c:5 initializer is not a constant: scnd
This program can be compiled:
#include
#include
void* frst[] = {nil, nil, nil, nil, nil};
void* scnd[] = {nil, nil, frst, [1]};
void main(void) {
exits(nil);
}
Pavel
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Re: [9fans] Strange 'uintptr' behavior
maybe a previous fix was not applied?
there is a slight difference in the error messages
between the address of zeroth element vs first element
(see line 9 vs 10 errors below). regardless, it's working
as expected on vanilla Plan 9:
% cat addrgames.c
#include
#include
void
main(int argc, char **argv)
{
#ifdef USEUINTPTR
uintptr frst[] = {nil, nil, nil, nil, nil};
uintptr scnd[] = {nil, nil, frst, [1]};
uintptr thrd[] = {nil, nil, frst, [0]};
#else
void* frst[] = {nil, nil, nil, nil, nil};
void* scnd[] = {nil, nil, frst, [1]};
void* thrd[] = {nil, nil, frst, [0]};
#endif
exits("");
}
% 8c addrgames.c
% 5c addrgames.c
% vc addrgames.c
% 6c addrgames.c
% 5c -D USEUINTPTR addrgames.c
addrgames.c:8 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:8 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:8 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:8 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:8 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:9 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:9 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:9 incompatible types: "ULONG" and "IND ULONG" for op "AS"
addrgames.c:9 incompatible types: "ULONG" and "IND ULONG" for op "AS"
addrgames.c:10 incompatible types: "ULONG" and "IND VOID" for op "AS"
addrgames.c:10 incompatible types: "ULONG" and "IND VOID" for op "AS"
too many errors
On Mon, Jan 24, 2022 at 8:51 AM Pavel Klinkovský
wrote:
>
> Hi all,
>
> I tried some artificial example for Plan9 compiler (5c)...
>
> This code is compiled without any problem:
> uintptr frst[] = {nil, nil, nil, nil, nil};
> uintptr scnd[] = {nil, nil, frst, [0]};
>
> But this one fails:
> uintptr frst[] = {nil, nil, nil, nil, nil};
> uintptr scnd[] = {nil, nil, frst, [1]};
>
> ...with message:
> cpu% 5c -p t.c
> /usr/pavel/t.c:16[t.c:888] initializer is not a constant: scnd
>
> OTOH, replacement of 'uintptr' by 'void*' is compiled without any problem:
> void* frst[] = {nil, nil, nil, nil, nil};
> void* scnd[] = {nil, nil, frst, [1]};
>
> Any explanation is appreciated.
>
> Pavel
>
> 9fans / 9fans / see discussions + participants + delivery options Permalink
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Re: [9fans] Strange 'uintptr' behavior
hi. i inluded them too, but had that error with uintptr. i tried it with 6c, 5c and had same result. (9front installation of plan9) a.b. 24. ledna 2022 20:49:30 SEČ, "Pavel Klinkovský" napsal: >> what headers you've included? >> > >As usually: > >#include >#include > > >with uintptr i get compilation error: incompatible types: "ULONG" and "IND >> VOID" for op AS. >> with void* it compiles without errors. >> >> alex.b. >> >> ps: are you czech? >> > > Yes. > > Pavel -- Odesláno aplikací K-9 Mail ze systému Android. Omluvte prosím moji stručnost. -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tb5fe0dc43447ab2c-M5c331b90faf1d97a6d872bb8 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
Re: [9fans] Strange 'uintptr' behavior
> what headers you've included? > As usually: #include #include with uintptr i get compilation error: incompatible types: "ULONG" and "IND > VOID" for op AS. > with void* it compiles without errors. > > alex.b. > > ps: are you czech? > Yes. Pavel -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tb5fe0dc43447ab2c-Mfd55c3e288c7cbeeafb039f5 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
Re: [9fans] Strange 'uintptr' behavior
hello. what headers you've included? with uintptr i get compilation error: incompatible types: "ULONG" and "IND VOID" for op AS. with void* it compiles without errors. alex.b. ps: are you czech? -- 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Tb5fe0dc43447ab2c-M782b57a9678ac27bcd643f48 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
[9fans] Strange 'uintptr' behavior
Hi all,
I tried some artificial example for Plan9 compiler (5c)...
This code is compiled without any problem:
uintptr frst[] = {nil, nil, nil, nil, nil};
uintptr scnd[] = {nil, nil, frst, [0]};
But this one fails:
uintptr frst[] = {nil, nil, nil, nil, nil};
uintptr scnd[] = {nil, nil, frst, [1]};
...with message:
cpu% 5c -p t.c
/usr/pavel/t.c:16[t.c:888] initializer is not a constant: scnd
OTOH, replacement of 'uintptr' by 'void*' is compiled without any problem:
void* frst[] = {nil, nil, nil, nil, nil};
void* scnd[] = {nil, nil, frst, [1]};
Any explanation is appreciated.
Pavel
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