Commit | Line | Data |
---|---|---|
4a233bd8 DD |
1 | # The -mdynamic-no-pic ensures that the compiler executable is built without |
2 | # position-independent-code -- the usual default on Darwin. This fix speeds | |
f91ca6bc IB |
3 | # compiles by 3-5%. Don't add it if the compiler doesn't also support |
4 | # -mno-dynamic-no-pic to undo it. | |
5 | DARWIN_MDYNAMIC_NO_PIC := \ | |
4d7b5c97 | 6 | `case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \ |
f91ca6bc IB |
7 | $(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \ |
8 | && echo -mdynamic-no-pic ;; esac` | |
9 | DARWIN_GCC_MDYNAMIC_NO_PIC := \ | |
10 | `case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \ | |
11 | $(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \ | |
12 | || echo -mdynamic-no-pic ;; esac` | |
acf89cab | 13 | |
4d7b5c97 JBG |
14 | # ld on Darwin versions >= 10.7 defaults to PIE executables. Disable this for |
15 | # gcc components, since it is incompatible with our pch implementation. | |
f91ca6bc IB |
16 | DARWIN_NO_PIE := `case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;` |
17 | ||
18 | BOOT_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC) | |
19 | BOOT_LDFLAGS += $(DARWIN_NO_PIE) | |
4d7b5c97 JBG |
20 | |
21 | # Similarly, for cross-compilation. | |
f91ca6bc IB |
22 | STAGE1_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC) |
23 | STAGE1_LDFLAGS += $(DARWIN_NO_PIE) | |
24 | ||
25 | # Without -mno-dynamic-no-pic support, add -mdynamic-no-pic just to later | |
26 | # stages when we know it is built with gcc. | |
27 | STAGE2_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC) | |
28 | STAGE3_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC) | |
29 | STAGE4_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC) |