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[gn build] Fix link with ld.bfd and gold. 

lld's symbol resolution algorithm makes it not depend on
the order of object files and libraries, but ld.bfd and
gold require listing dependencies later on the link line.
Put {{libs}} after {{inputs}} so that e.g. -lpthreads
appears after the object files, not before it.

Differential Revision: https://reviews.llvm.org/D81035
This commit is contained in:
Nico Weber 2020-06-03 17:05:34 -04:00
parent 7f50c15be5
commit a946cb1813
1 changed files with 9 additions and 9 deletions
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18
llvm/utils/gn/build/toolchain/BUILD.gn
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@ -55,10 +55,10 @@ template("unix_toolchain") {
tool("solink") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (current_os == "mac") {
command = "$ld -shared {{ldflags}} -o $outfile {{libs}} {{inputs}}"
command = "$ld -shared {{ldflags}} -o $outfile {{inputs}} {{libs}}"
default_output_extension = ".dylib"
} else {
command = "$ld -shared {{ldflags}} -Wl,-z,defs -Wl,-soname,{{target_output_name}}{{output_extension}} -o $outfile {{libs}} {{inputs}}"
command = "$ld -shared {{ldflags}} -Wl,-z,defs -Wl,-soname,{{target_output_name}}{{output_extension}} -o $outfile {{inputs}} {{libs}}"
default_output_extension = ".so"
}
description = "SOLINK $outfile"
@ -71,10 +71,10 @@ template("unix_toolchain") {
tool("solink_module") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (current_os == "mac") {
command = "$ld -shared {{ldflags}} -Wl,-flat_namespace -Wl,-undefined,suppress -o $outfile {{libs}} {{inputs}}"
command = "$ld -shared {{ldflags}} -Wl,-flat_namespace -Wl,-undefined,suppress -o $outfile {{inputs}} {{libs}}"
default_output_extension = ".dylib"
} else {
command = "$ld -shared {{ldflags}} -Wl,-soname,{{target_output_name}}{{output_extension}} -o $outfile {{libs}} {{inputs}}"
command = "$ld -shared {{ldflags}} -Wl,-soname,{{target_output_name}}{{output_extension}} -o $outfile {{inputs}} {{libs}}"
default_output_extension = ".so"
}
description = "SOLINK $outfile"
@ -86,9 +86,9 @@ template("unix_toolchain") {
tool("link") {
outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
if (current_os == "mac") {
command = "$ld {{ldflags}} -o $outfile {{libs}} {{inputs}}"
command = "$ld {{ldflags}} -o $outfile {{inputs}} {{libs}}"
} else {
command = "$ld {{ldflags}} -o $outfile {{libs}} -Wl,--start-group {{inputs}} -Wl,--end-group"
command = "$ld {{ldflags}} -o $outfile -Wl,--start-group {{inputs}} -Wl,--end-group {{libs}}"
}
description = "LINK $outfile"
outputs = [ outfile ]
@ -245,7 +245,7 @@ toolchain("win") {
dllfile = "$outprefix{{output_extension}}"
libfile = "$outprefix.lib"
pdbfile = "$outprefix.pdb"
command = "$link /nologo /dll {{ldflags}} /out:$dllfile /implib:$libfile /pdb:$pdbfile {{libs}} {{inputs}}"
command = "$link /nologo /dll {{ldflags}} /out:$dllfile /implib:$libfile /pdb:$pdbfile {{inputs}} {{libs}} "
description = "LINK $dllfile"
link_output = libfile
depend_output = libfile
@ -272,7 +272,7 @@ toolchain("win") {
outprefix = "{{output_dir}}/{{target_output_name}}"
dllfile = "$outprefix{{output_extension}}"
pdbfile = "$outprefix.pdb"
command = "$link /nologo /dll {{ldflags}} /out:$dllfile /pdb:$pdbfile {{libs}} {{inputs}}"
command = "$link /nologo /dll {{ldflags}} /out:$dllfile /pdb:$pdbfile {{inputs}} {{libs}} "
description = "LINK_MODULE $dllfile"
outputs = [ dllfile ]
lib_switch = ""
@ -286,7 +286,7 @@ toolchain("win") {
outprefix = "{{output_dir}}/{{target_output_name}}"
outfile = "$outprefix{{output_extension}}"
pdbfile = "$outprefix.pdb"
command = "$link /nologo {{ldflags}} /out:$outfile /pdb:$pdbfile {{libs}} {{inputs}}"
command = "$link /nologo {{ldflags}} /out:$outfile /pdb:$pdbfile {{inputs}} {{libs}}"
description = "LINK $outfile"
outputs = [ outfile ]
lib_switch = ""