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authorChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:07 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:17 +0200
commit9260319e7411ff8281700a532caa436f40120ec4 (patch)
tree2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues_text/target_alpha/host_missing/accel_missing/577
parent225caa38269323af1bfc2daadff5ec8bd930747f (diff)
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+getdtablesize() returns wrong value in qemu user mode on Linux/alpha
+Description of problem:
+The `getdtablesize()` function returns a value that is too large. Namely, `getdtablesize() - 1` ought to be a valid file descriptor, but is not.
+Steps to reproduce:
+[foo.c](/uploads/7a9e99d3811fe4a7eef183ed98c966a4/foo.c)
+
+1.
+```
+# apt install g++-10-alpha-linux-gnu
+```
+2.
+```
+$ alpha-linux-gnu-gcc-10 -Wall -static foo.c
+```
+[a.out](/uploads/4fffa6dd2332885f51e4030dcbe25644/a.out)
+
+3. Transfer the a.out file to a Linux/alpha machine; execute it there. The return code is 0.
+4.
+```
+$ QEMU_LD_PREFIX=/usr/alpha-linux-gnu ~/inst-qemu/6.1.0/bin/qemu-alpha ./a.out ; echo $?
+```
+Expected: `0`
+Actual: `1`
+Additional information:
+