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List: gdb-patches
Subject: [RFA] Patch for mips_o64_return_value to fix calling functions by hand
From: fnf () specifix ! com (Fred Fish)
Date: 2006-04-27 14:04:00
Message-ID: 200604271004.44938.fnf () specifix ! com
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I'm doing some work with a mips64-elf toolchain and took a look at why
there are so many gdb testsuite failures. One problem I found is that
calling functions by hand was broken, due to what looked to me like a
case of a development stub being left in. I've attached a patch that
reduces the total number of testsuite failures by around 50%.
I'm testing with the following multilibs:
mips64-sim/-EB
mips64-sim/-EL
mips64-sim/-EB/-msoft-float
mips64-sim/-EL/-msoft-float
Before applying the attached patch, I get:
# of expected passes 34613
# of unexpected failures 1866
# of unexpected successes 4
# of expected failures 164
# of known failures 196
# of unresolved testcases 77
# of untested testcases 36
# of unsupported tests 152
/links/build/latest/trunk/mips64-elf/gdb/gdb/testsuite/../../gdb/gdb version 6.4.50.20060422-cvs -nx
after applying the patch I get:
# of expected passes 35540
# of unexpected failures 938
# of unexpected successes 4
# of expected failures 164
# of known failures 196
# of unresolved testcases 76
# of untested testcases 36
# of unsupported tests 152
/links/build/latest/trunk/mips64-elf/gdb/gdb/testsuite/../../gdb/gdb version 6.4.50.20060422-cvs -nx
There are still some issues calling functions by hand in code compiled
with -msoft-float, but these are not specific to 64-bit mips, or even
mips for that matter. For example:
Running target mips64-sim/-EB/-msoft-float
Running /src/latest/trunk/src/gdb/gdb/testsuite/gdb.base/call-sc.exp ...
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-tf
FAIL: gdb.base/call-sc.exp: value foo returned; return call-sc-tf
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-td
FAIL: gdb.base/call-sc.exp: value foo returned; return call-sc-td
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-tld
FAIL: gdb.base/call-sc.exp: value foo returned; return call-sc-tld
Running target mips-sim/-EB/-msoft-float
Running /src/latest/trunk/src/gdb/gdb/testsuite/gdb.base/call-sc.exp ...
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-tf
FAIL: gdb.base/call-sc.exp: p/c L; call call-sc-tf
FAIL: gdb.base/call-sc.exp: value foo returned; return call-sc-tf
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-td
FAIL: gdb.base/call-sc.exp: p/c L; call call-sc-td
FAIL: gdb.base/call-sc.exp: value foo returned; return call-sc-td
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-tld
FAIL: gdb.base/call-sc.exp: p/c L; call call-sc-tld
FAIL: gdb.base/call-sc.exp: value foo returned; return call-sc-tld
Running target powerpc-sim/-msoft-float/-mrelocatable-lib/-mno-eabi/-mstrict-align
Running /src/latest/trunk/src/gdb/gdb/testsuite/gdb.base/call-sc.exp ...
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-tf
FAIL: gdb.base/call-sc.exp: p/c L; call call-sc-tf
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-td
FAIL: gdb.base/call-sc.exp: p/c L; call call-sc-td
FAIL: gdb.base/call-sc.exp: p/c fun(); call call-sc-tld
FAIL: gdb.base/call-sc.exp: p/c L; call call-sc-tld
I'll investigate those failures and supply a separate patch.
-Fred
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