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package/foot: support soft-float architecture

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Architecture using soft float don't support the math FE_* exceptions.
This commit adds a patch to conditionnally build the FE_* exception
handling.

Fixes:
    https://autobuild.buildroot.org/results/88d/88d764dd12bdbdbe633ebc703c461ebe95b75693/

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
This commit is contained in:
Thomas Bonnefille
2025-02-17 19:43:34 +01:00
committed by Julien Olivain
parent fefb6a6785
commit ac83fdcb29
1 changed files with 42 additions and 0 deletions
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42
package/foot/0001-box-drawings-handle-architecture-with-soft-float.patch Normal file
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@@ -0,0 +1,42 @@
From 9443ac7e2937bb4f26cf44c73bb8150860c5df45 Mon Sep 17 00:00:00 2001
From: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Date: Tue, 4 Feb 2025 09:48:13 +0100
Subject: [PATCH] box-drawings: handle architecture with soft-float
Currently, architecture using soft-floats doesn't support instructions
FE_INVALID, FE_DIVBYZERO, FE_OVERFLOW and FE_UNDERFLOW and so building
on those architectures results with a build error.
As the sqrt math function should set errno to EDOM if an error occurs,
fetestexcept shouldn't be mandatory.
This commit removes the float environment error handling.
Upstream: https://codeberg.org/dnkl/foot/commit/9443ac7e2937bb4f26cf44c73bb8150860c5df45
Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
---
box-drawing.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/box-drawing.c b/box-drawing.c
index 1c613051..421ff54d 100644
--- a/box-drawing.c
+++ b/box-drawing.c
@@ -1462,14 +1462,12 @@ draw_box_drawings_light_arc(struct buf *buf, char32_t wc)
*/
for (double i = y_min*16; i <= y_max*16; i++) {
errno = 0;
- feclearexcept(FE_ALL_EXCEPT);
double y = i / 16.;
double x = circle_hemisphere * sqrt(c_r2 - (y - c_y) * (y - c_y)) + c_x;
/* See math_error(7) */
- if (errno != 0 ||
- fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW))
+ if (errno != 0)
{
continue;
}
--
2.48.1