Bug#880962: mips*: "gcc --help=target --help=optimizers" busyloops forever
Package: gcc-7
Version: 7.2.0-12
Severity: serious
Control: affects -1 src:amanda
https://buildd.debian.org/status/package.php?p=amanda&suite=sid
...
checking for gcc flag -fstrict-aliasing...
E: Build killed with signal TERM after 360 minutes of inactivity
Testcase:
(sid_mips-dchroot)bunk@minkus:~$ gcc --help=target --help=optimizers
The following options are target specific:
-G<number> Put global and static data smaller than <number> bytes into a special section (on some
targets).
-mabi=ABI Generate code that conforms to the given ABI.
-mabicalls Generate code that can be used in SVR4-style dynamic objects.
-mabs=MODE Select the IEEE 754 ABS/NEG instruction execution mode.
-mandroid Generate code for the Android platform.
-march=ISA Generate code for the given ISA.
-mbionic Use Bionic C library.
-mbranch-cost=COST Set the cost of branches to roughly COST instructions.
-mbranch-likely Use Branch Likely instructions, overriding the architecture default.
-mcheck-zero-division Trap on integer divide by zero.
-mcode-readable=SETTING Specify when instructions are allowed to access code.
-mcompact-branches= Specify the compact branch usage policy.
-mdebug This option lacks documentation.
-mdebugd This option lacks documentation.
-mdivide-breaks Use branch-and-break sequences to check for integer divide by zero.
-mdivide-traps Use trap instructions to check for integer divide by zero.
-mdmx Allow the use of MDMX instructions.
-mdouble-float Allow hardware floating-point instructions to cover both 32-bit and 64-bit operations.
-mdsp Use MIPS-DSP instructions.
-mdspr2 Use MIPS-DSP REV 2 instructions.
-meb Use big-endian byte order.
-mel Use little-endian byte order.
-membedded-data Use ROM instead of RAM.
-meva Use Enhanced Virtual Addressing instructions.
-mexplicit-relocs Use NewABI-style %reloc() assembly operators.
-mextern-sdata Use -G for data that is not defined by the current object.
-mfix-24k Work around certain 24K errata.
-mfix-r10000 Work around certain R10000 errata.
-mfix-r4000 Work around certain R4000 errata.
-mfix-r4400 Work around certain R4400 errata.
-mfix-rm7000 Work around certain RM7000 errata.
-mfix-sb1 Work around errata for early SB-1 revision 2 cores.
-mfix-vr4120 Work around certain VR4120 errata.
-mfix-vr4130 Work around VR4130 mflo/mfhi errata.
-mfix4300 Work around an early 4300 hardware bug.
-mflip-mips16 Switch on/off MIPS16 ASE on alternating functions for compiler testing.
-mflush-func=FUNC Use FUNC to flush the cache before calling stack trampolines.
-mfp-exceptions FP exceptions are enabled.
-mfp32 Use 32-bit floating-point registers.
-mfp64 Use 64-bit floating-point registers.
-mfpxx Conform to the o32 FPXX ABI.
-mframe-header-opt Optimize frame header.
-mfused-madd Same as -ffp-contract=. Use the latter option instead. Uses of this option are
diagnosed.
-mglibc Use GNU C library.
-mgp32 Use 32-bit general registers.
-mgp64 Use 64-bit general registers.
-mgpopt Use GP-relative addressing to access small data.
-mhard-float Allow the use of hardware floating-point ABI and instructions.
-mimadd Use integer madd/msub instructions.
-minterlink-compressed Generate code that is link-compatible with MIPS16 and microMIPS code.
-minterlink-mips16 An alias for minterlink-compressed provided for backward-compatibility.
-mipsN Generate code for ISA level N.
-mips16 Generate MIPS16 code.
-mips3d Use MIPS-3D instructions.
-mllsc Use ll, sc and sync instructions.
-mload-store-pairs Enable load/store bonding.
-mlocal-sdata Use -G for object-local data.
-mlong-calls Use indirect calls.
-mlong32 Use a 32-bit long type.
-mlong64 Use a 64-bit long type.
-mlra Use LRA instead of reload.
-mlxc1-sxc1 Use lwxc1/swxc1/ldxc1/sdxc1 instructions where applicable.
-mmad Use PMC-style 'mad' instructions.
-mmadd4 Use 4-operand madd.s/madd.d and related instructions where applicable.
-mmcount-ra-address Pass the address of the ra save location to _mcount in $12.
-mmcu Use MCU instructions.
-mmemcpy Don't optimize block moves.
-mmicromips Use microMIPS instructions.
-mmsa Use MIPS MSA Extension instructions.
-mmt Allow the use of MT instructions.
-mmusl Use musl C library.
-mnan=ENCODING Select the IEEE 754 NaN data encoding.
-mno-flush-func Do not use a cache-flushing function before calling stack trampolines.
-mno-mdmx Do not use MDMX instructions.
-mno-mips16 Generate normal-mode code.
-mno-mips3d Do not use MIPS-3D instructions.
-modd-spreg Enable use of odd-numbered single-precision registers.
-mpaired-single Use paired-single floating-point instructions.
-mplt When generating -mabicalls code, allow executables to use PLTs and copy relocations.
-mr10k-cache-barrier=SETTING Specify when r10k cache barriers should be inserted.
-mrelax-pic-calls Try to allow the linker to turn PIC calls into direct calls.
-mshared When generating -mabicalls code, make the code suitable for use in shared libraries.
-msingle-float Restrict the use of hardware floating-point instructions to 32-bit operations.
-msmartmips Use SmartMIPS instructions.
-msoft-float Prevent the use of all hardware floating-point instructions.
-msplit-addresses Optimize lui/addiu address loads.
-msym32 Assume all symbols have 32-bit values.
-msynci Use synci instruction to invalidate i-cache.
-mtune=PROCESSOR Optimize the output for PROCESSOR.
-muclibc Use uClibc C library.
-muninit-const-in-rodata Put uninitialized constants in ROM (needs -membedded-data).
-mvirt Use Virtualization (VZ) instructions.
-mvr4130-align Perform VR4130-specific alignment optimizations.
-mxgot Lift restrictions on GOT size.
-mxpa Use eXtended Physical Address (XPA) instructions.
Known MIPS ABIs (for use with the -mabi= option):
32 64 eabi n32 o64
Known MIPS CPUs (for use with the -march= and -mtune= options):
10000 1004kc 1004kf 1004kf1_1 1004kf2_1 10k 12000 12k 14000 14k 16000 16k 2000 20kc 24kc 24kec 24kef 24kef1_1
24kef2_1 24kefx 24kex 24kf 24kf1_1 24kf2_1 24kfx 24kx 2k 3000 34kc 34kf 34kf1_1 34kf2_1 34kfx 34kn 34kx 3900 3k
4000 4100 4111 4120 4130 4300 4400 4600 4650 4700 4k 4kc 4kec 4kem 4kep 4km 4kp 4ksc 4ksd 5000 5400 5500 5900 5k
5kc 5kf 6000 6k 7000 74kc 74kf 74kf1_1 74kf2_1 74kf3_2 74kfx 74kx 7k 8000 8k 9000 9k from-abi i6400 interaptiv
loongson2e loongson2f loongson3a m14k m14kc m14ke m14kec m4k m5100 m5101 mips1 mips2 mips3 mips32 mips32r2
mips32r3 mips32r5 mips32r6 mips4 mips64 mips64r2 mips64r3 mips64r5 mips64r6 native octeon octeon+ octeon2 octeon3
orion p5600 r10000 r1004kc r1004kf r1004kf1_1 r1004kf2_1 r10k r12000 r12k r14000 r14k r16000 r16k r2000 r20kc
r24kc r24kec r24kef r24kef1_1 r24kef2_1 r24kefx r24kex r24kf r24kf1_1 r24kf2_1 r24kfx r24kx r2k r3000 r34kc r34kf
r34kf1_1 r34kf2_1 r34kfx r34kn r34kx r3900 r3k r4000 r4100 r4111 r4120 r4130 r4300 r4400 r4600 r4650 r4700 r4k
r4kc r4kec r4kem r4kep r4km r4kp r4ksc r4ksd r5000 r5400 r5500 r5900 r5k r5kc r5kf r6000 r6k r7000 r74kc r74kf
r74kf1_1 r74kf2_1 r74kf3_2 r74kfx r74kx r7k r8000 r8k r9000 r9k rm7000 rm7k rm9000 rm9k sb1 sb1a sr71000 sr71k
vr4100 vr4111 vr4120 vr4130 vr4300 vr5000 vr5400 vr5500 vr5k xlp xlr
Policies available for use with -mcompact-branches=:
always never optimal
Valid arguments to -mcode-readable=:
no pcrel yes
Known MIPS IEEE 754 settings (for use with the -mabs= and -mnan= options):
2008 legacy
Known MIPS ISA levels (for use with the -mips option):
1 2 3 32 32r2 32r3 32r5 32r6 4 64 64r2 64r3 64r5 64r6
Valid arguments to -mr10k-cache-barrier=:
load-store none store
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