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authorChristian Krinitsin <mail@krinitsin.com>2025-07-06 16:43:19 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-06 16:43:19 +0000
commit238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd (patch)
treecd8a1b75ba7b3543eb7fe6857f408e7be4d9fd0b /results/classifier/gemma3:27b/runtime/1716767
parent96049c939b1916d80532630d63c14e04d5244f1d (diff)
downloademulator-bug-study-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.tar.gz
emulator-bug-study-238ec2b7cc1557d6f34c33cc482e4d0cd3e266dd.zip
add results
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+
+
+
+file(1) fails with "Invalid argument" on qemu-sh4-user
+
+We recently discovered that file(1) fails on qemu-sh4-user when running on an ELF file:
+
+(sid_sh4)root@vs94:/# file /bin/bash
+/bin/bash: ERROR: ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV) error reading (Invalid argument)
+(sid_sh4)root@vs94:/#
+
+Running with "-d" yields more output:
+
+(sid_sh4)root@vs94:/# file -d /bin/bash 2>&1 | tail
+322: >> 7 byte&,=97,"(ARM)"]
+0 == 97 = 0
+mget(type=1, flag=0, offset=7, o=0, nbytes=863324, il=0, nc=1)
+mget/96 @7: \000\000\000\000\000\000\000\000\000\002\000*\000\001\000\000\000\250\317A\0004\000\000\000L(\r\000\027\000\000\0004\000 \000\n\000(\000\032\000\031\000\006\000\000\0004\000\000\0004\000@\0004\000@\000@\001\000\000@\001\000\000\005\000\000\000\004\000\000\000\003\000\000\000t\001\000\000t\001@\000t\001@\000\023\000\000
+
+323: >> 7 byte&,=-1,"(embedded)"]
+0 == 18446744073709551615 = 0
+[try softmagic 1]
+[try elf -1]
+/bin/bash: ERROR: ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV) error reading (Invalid argument)
+(sid_sh4)root@vs94:/#
+
+It seems that the comparison above has a bogus (overflown?) value.
+
+On actual hardware, it works:
+
+root@tirpitz:~> file /bin/bash
+/bin/bash: ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, BuildID[sha1]=4dd0e4281755827d8bb6686fd481f8c80ea73e9a, for GNU/Linux 3.2.0, stripped
+root@tirpitz:~>
+
+I have uploaded a chroot with Debian unstable which allows to reproduce the issue:
+
+> https://people.debian.org/~glaubitz/sid-sh4-sbuild.tar.gz
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