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e1db26085b
This version has some improvements for musl. This version works fine for me on MIPS 32 BE without MIPS16 even on musl. The additional patch is needed to make valgrind use the correct syscall numbers for new syscalls like clock_gettime64. The MIPS architecture uses special syscall ranges which are different from most other systems. The patch is pending upstream: https://bugs.kde.org/show_bug.cgi?id=444781 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
69 lines
2.2 KiB
Diff
69 lines
2.2 KiB
Diff
Disable the valgrind helpers which use MIPS floating point operations
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when floating point support is deactivated in the toolchain.
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The fix from this commit is not sufficient any more:
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https://sourceware.org/git/?p=valgrind.git;a=commitdiff;h=869fcf2f6739f17b4eff36ec68f8dca826c8afeb
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This fixes the following error message when compiling with a GCC 10 MIPS BE 32:
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---------------------------------------------------------
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../VEX/priv/guest_mips_helpers.c: In function 'mips_dirtyhelper_calculate_FCSR_fp32':
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../VEX/priv/guest_mips_helpers.c:640:10: error: the register '$f21' cannot be clobbered in 'asm' for the current target
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640 | ASM_VOLATILE_UNARY32_DOUBLE(round.w.d)
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| ^
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---------------------------------------------------------
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--- a/VEX/priv/guest_mips_helpers.c
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+++ b/VEX/priv/guest_mips_helpers.c
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@@ -616,6 +616,7 @@ extern UInt mips_dirtyhelper_calculate_F
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flt_op inst )
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{
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UInt ret = 0;
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+#ifndef __mips_soft_float
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#if defined(__mips__)
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VexGuestMIPS32State* guest_state = (VexGuestMIPS32State*)gs;
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UInt loFsVal, hiFsVal, loFtVal, hiFtVal;
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@@ -698,6 +699,7 @@ extern UInt mips_dirtyhelper_calculate_F
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break;
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}
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#endif
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+#endif
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return ret;
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}
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@@ -707,6 +709,7 @@ extern UInt mips_dirtyhelper_calculate_F
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flt_op inst )
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{
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UInt ret = 0;
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+#ifndef __mips_soft_float
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#if defined(__mips__) && ((__mips == 64) || \
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(defined(__mips_isa_rev) && (__mips_isa_rev >= 2)))
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#if defined(VGA_mips32)
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@@ -859,6 +862,7 @@ extern UInt mips_dirtyhelper_calculate_F
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break;
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}
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#endif
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+#endif
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return ret;
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}
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--- a/coregrind/m_machine.c
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+++ b/coregrind/m_machine.c
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@@ -2103,6 +2103,7 @@ Bool VG_(machine_get_hwcaps)( void )
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we are using alternative way to determine FP mode */
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ULong result = 0;
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+#ifndef __mips_soft_float
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if (!VG_MINIMAL_SETJMP(env_unsup_insn)) {
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__asm__ volatile (
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".set push\n\t"
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@@ -2120,6 +2121,9 @@ Bool VG_(machine_get_hwcaps)( void )
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fpmode = (result != 0x3FF0000000000000ull);
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}
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+#else
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+ fpmode = 0;
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+#endif
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}
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if (fpmode != 0)
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