texlive-basic: dvips exits with trap 6

[slewsys (Andrew L. Moore)]

Dvips on macOS 10.12.4 exits with trap 6 building asymptote 2.41 documentation from MacPorts GitHub HEAD.

Dvips had no trouble building asymptote 2.40 last month (March, 2017). The only change that I can attribute is upgrading Xcode to version 8.3.1.

By swapping dvips from MacPorts with dvips (and only dvips) from MacTeX 2016, the asymptote build succeeds. Both MacPorts and MacTeX dvips are version 5.996.

Attaching asymptote build log. The log doesn't show dvips trap 6 (SIGABRT). That must be from a manual build...

[slewsys (Andrew L. Moore)]

asymptote 2.41 failed build log using MacPorts dvips and Xcode 8.3.1

[slewsys (Andrew L. Moore)]

Attaching successful build log of asymptote 2.41 build with MacTeX dvips. Only two changes here:

• Append /Library/TeX/texbin to binpath in macports.conf.
• Move ${prefix}/bin/dvips to ${prefix}/bin/dvips-dist.

[slewsys (Andrew L. Moore)]

asymptote 2.41 successful build log using MacTeX dvips and otherwise MacPorts texlive

[mf2k (Frank Schima)]

In the future, please Cc the port maintainers (port info --maintainers texlive-basic), if any.

[drkp (Dan Ports)]

I can reproduce this with xcode 8.3.1, but haven't been able to figure out the cause yet...

[mojca (Mojca Miklavec)]

Can you please also attach the dvi files in questions (for example CAD1_.dvi)?

[slewsys (Andrew L. Moore)]

Bode_.dvi => Bode_.ps via `dvips -R -Pdownload35 -D600 -O-128.4bp,522.983bp -T612bp,792bp -tletterSize -oBode_.ps Bode_.dvi'

[slewsys (Andrew L. Moore)]

Expected result of processing Bode_.dvi

[slewsys (Andrew L. Moore)]

CAD1_.dvi => CAD1_.ps via `dvips -R -Pdownload35 -D600 -O-128.4bp,579.491bp -T612bp,792bp -tletterSize -oCAD1_.ps CAD1_.dvi'

[slewsys (Andrew L. Moore)]

Expected result of processing CAD1_.dvi

[mojca (Mojca Miklavec)]

Please also add CAD1_0.eps for completeness (otherwise it's impossible to run dvips on that file).

[slewsys (Andrew L. Moore)]

Encapsulated Post

[slewsys (Andrew L. Moore)]

Encapsulated PostScript

[mojca (Mojca Miklavec)]

This works for me. What happens if you run:

/opt/local/bin/dvips -R -Pdownload35 -D600 -O-128.4bp,579.491bp -T612bp,792bp -tletterSize -oCAD1_.ps CAD1_.dvi

(Adjust that to your prefix.)

It might be due to some "corrupt" configuration files.

[drkp (Dan Ports)]

I can reproduce this but only after upgrading Xcode to 8.3.1 and rebuilding texlive-bin. It worked fine with an earlier xcode version.

I have no idea why this is, and I haven't had a chance to look into it yet...

[mojca (Mojca Miklavec)]

Andrew, if you have time to test, would you perhaps be willing to compile the latest TL sources (from subversion) with Xcode 8.3.1?

svn://tug.org/texlive/trunk/Build/source

Then make a backup of the existing dvips binary and replace it with the freshly built one (it probably makes sense to replace the one inside MacTeX) and try to run dvips on the above files (don't bother with asymptote installation).

[drkp (Dan Ports)]

Same issue with a svn build.

[mojca (Mojca Miklavec)]

In that case I suspect some issue that's really specific to the latest compiler, potentially also related to gs. Note that dvips from MacTeX 2016 has been compiled on 10.6 with gcc 4.2, so a different stdlib is being used.

Asymptote is also reported to be broken in some aspects after being compiled on Yosemite.

It wouldn't be the first time: #43728.

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #54126.

[diochnos]

Just to add a small related comment, which may give an additional hint.

There appears to be a similar issue with dvipdf: it generates a pdf file, but the resulting pdf document is empty (one empty white page). This behavior started after upgrading to the latest Xcode version (8.3.32 / around April 19, or earlier). For example, you can try dvipdf Bode_.dvi with the file provided above.

Actually I have subscribed to this thread when my real issue is the dvipdf command.

[brunoomartin]

dvips still exits with Abort trap: 6 after recompiling the texlive-basic @41271_0+doc with Xcode 8.3.2 on OSX 10.12.5 on a MPB mid 2015

[slewsys (Andrew L. Moore)]

Patch texk/dvipsk/color.c. Fixes ticket #53974

[slewsys (Andrew L. Moore)]

Attachment fixes dvips SIGABRT when divps compiled with clang compiler. Caused by bad pointer declaration, most likely a typo. TODO: submit up-stream as needed.

[mojca (Mojca Miklavec)]

The patch above points to the right direction, but doesn't seem to be entirely correct. Here's a revised patch written by Akira Kakuto. Can you please test that one?

texk/dvipsk/color.c

@@ -37 +37 @@
    struct colorpage *next;
    integer boploc; /* we use the bop loc as a page indicator */
    char *bg;
-   char colordat[2];
+   char *colordat;
 } *colorhash[COLORHASH];
 static char *cstack, *csp, *cend, *bg;
 /*
@@ -84 +84 @@
    for (i=0; i<COLORHASH; i++) {
       for (p=colorhash[i]; p; p = q) {
          q = p->next;
+         free(p->colordat);
          free(p);
       }
       colorhash[i] = 0;
@@ -216 +217 @@
       }
    } else {
       p = (struct colorpage *)mymalloc((integer)
-                  (strlen(cstack) + sizeof(struct colorpage) + MAXCOLORLEN));
+                  (sizeof(struct colorpage)));
+      p->colordat = mymalloc(strlen(cstack) + MAXCOLORLEN + 2);
       p->next = colorhash[h];
       p->boploc = pageloc;
       strcpy(p->colordat, cstack);

[slewsys (Andrew L. Moore)]

Replying to mojca:

The patch above points to the right direction, but doesn't seem to be entirely correct. Here's a revised patch written by Akira Kakuto. Can you please test that one?

Akira's patch is correct. I was thinking that separately allocating colordat isn't necessary, but actually it is. The declaration colordat[2] was evidently a hack to avoid that allocation, but clang won't let you get away with it. So changing colordat to a single pointer and separately allocating/freeing it is correct. Thanks to Akira Kakuto for clear thinking :)

[drkp (Dan Ports)]

Seems to work fine with the texlive 2017 update I am working on. (I haven't tested it with the version in the regular ports tree yet; need to switch back to that first)

[drkp (Dan Ports)]

In ba3b0b2ac1bc2fca3326fa7d9bfd2e97f9b06d6a/macports-ports:

texlive-bin: fix dvips crash
Closes: #53974