50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
From 6e9265e571a63deb2584704a0b088a6d67ec8af5 Mon Sep 17 00:00:00 2001
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From: Lulu Cheng <chenglulu@loongson.cn>
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Date: Mon, 20 Feb 2023 16:47:11 +0800
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Subject: [PATCH 037/124] LoongArch: Change the value of macro
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TRY_EMPTY_VM_SPACE from 0x8000000000 to 0x1000000000.
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The PCH mechanism first tries to map the .gch file to the virtual memory
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space pointed to by TRY_EMPTY_VM_SPACE during the compilation process.
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The original value of TRY_EMPTY_VM_SPACE macro is 0x8000000000,
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but like la464 only has 40 bits of virtual address space, this value
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just exceeds the address range.
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If we want to support chips with less than 40 bits virtual addresses,
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then the value of this macro needs to be set small. I think setting
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this value small will increase the probability of virtual address
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mapping failure. And the purpose of pch is to make compilation faster,
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but I think we rarely compile on embedded systems. So this situation
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may not be within our consideration.
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So change the value of this macro to 0x1000000000.
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gcc/ChangeLog:
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* config/host-linux.cc (TRY_EMPTY_VM_SPACE): Modify the value of
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the macro to 0x1000000000.
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Signed-off-by: Peng Fan <fanpeng@loongson.cn>
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Signed-off-by: ticat_fp <fanpeng@loongson.cn>
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---
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gcc/config/host-linux.cc | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/gcc/config/host-linux.cc b/gcc/config/host-linux.cc
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index 817d3c087..d93cfc064 100644
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--- a/gcc/config/host-linux.cc
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+++ b/gcc/config/host-linux.cc
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@@ -99,7 +99,7 @@
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#elif defined(__riscv) && defined (__LP64__)
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# define TRY_EMPTY_VM_SPACE 0x1000000000
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#elif defined(__loongarch__) && defined(__LP64__)
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-# define TRY_EMPTY_VM_SPACE 0x8000000000
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+# define TRY_EMPTY_VM_SPACE 0x1000000000
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#else
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# define TRY_EMPTY_VM_SPACE 0
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#endif
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--
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2.33.0
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