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model3d: disable UBSan alignment sanitization on m3d_load

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Works around: https://gitlab.com/bztsrc/model3d/-/issues/19

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-11-14 16:52:34 -07:00
parent caafb26fe4
commit 917b0eb8be
2 changed files with 2 additions and 1 deletions
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2
libs/model3d/build.zig
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@ -23,7 +23,7 @@ pub fn testStep(b: *std.build.Builder, mode: std.builtin.Mode, target: std.zig.C
pub fn link(b: *std.build.Builder, step: *std.build.LibExeObjStep) void {
const lib = b.addStaticLibrarySource("model3d", null);
lib.addCSourceFile(sdkPath("/src/c/m3d.c"), &.{ "-std=c89", "-DM3D_ASCII" });
lib.addCSourceFile(sdkPath("/src/c/m3d.c"), &.{ "-std=c89" });
lib.linkLibC();
step.addIncludePath(sdkPath("/src/c/"));
step.linkLibrary(lib);

1
libs/model3d/src/c/m3d.h vendored
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@ -2377,6 +2377,7 @@ static M3D_FLOAT _m3d_rsq(M3D_FLOAT x)
/**
* Function to decode a Model 3D into in-memory format
*/
__attribute__((no_sanitize("alignment"))) // TODO(model3d): https://gitlab.com/bztsrc/model3d/-/issues/19
m3d_t *m3d_load(unsigned char *data, m3dread_t readfilecb, m3dfree_t freecb, m3d_t *mtllib)
{
unsigned char *end, *chunk, *buff, weights[8];