annotate config/mh-darwin @ 111:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents 561a7518be6b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
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1 # The -mdynamic-no-pic ensures that the compiler executable is built without
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
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2 # position-independent-code -- the usual default on Darwin. This fix speeds
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3 # compiles by 3-5%. Don't add it if the compiler doesn't also support
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4 # -mno-dynamic-no-pic to undo it.
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5 DARWIN_MDYNAMIC_NO_PIC := \
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6 `case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \
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7 $(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \
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8 && echo -mdynamic-no-pic ;; esac`
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9 DARWIN_GCC_MDYNAMIC_NO_PIC := \
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10 `case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \
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11 $(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \
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12 || echo -mdynamic-no-pic ;; esac`
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a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
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13
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14 # ld on Darwin versions >= 10.7 defaults to PIE executables. Disable this for
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15 # gcc components, since it is incompatible with our pch implementation.
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16 DARWIN_NO_PIE := `case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`
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17
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18 BOOT_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC)
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19 BOOT_LDFLAGS += $(DARWIN_NO_PIE)
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20
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21 # Similarly, for cross-compilation.
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22 STAGE1_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC)
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23 STAGE1_LDFLAGS += $(DARWIN_NO_PIE)
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24
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25 # Without -mno-dynamic-no-pic support, add -mdynamic-no-pic just to later
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26 # stages when we know it is built with gcc.
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27 STAGE2_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)
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28 STAGE3_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)
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29 STAGE4_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)