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| author |   Alexander Miller <alex.miller@gmx.de> | 2022-08-07 01:22:09 +0200 |
|---|---|---|
| committer |   Sam James <sam@gentoo.org> | 2022-08-24 05:56:27 +0100 |
| commit | 8bb13b19b42601b8b57c5b1c2d64d1b0a04fede5 (patch) | |
| tree | 8cc09bd56da2e18e3983669a24e22f3d956fbbb9 /sys-libs | |
| parent | flag-o-matic.eclass: test-flag-PROG, strip unused args that generate warnings (diff) | |
| download | gentoo-8bb13b19b42601b8b57c5b1c2d64d1b0a04fede5.tar.gz gentoo-8bb13b19b42601b8b57c5b1c2d64d1b0a04fede5.tar.bz2 gentoo-8bb13b19b42601b8b57c5b1c2d64d1b0a04fede5.zip | |
sys-libs/compiler-rt: Override start symbol when adding -nostartfiles to LDFLAGS
Trying to link executables for the configure checks generates linker
warnings (in the CMake logs) like: "warning: cannot find entry symbol
_start; defaulting to 0000000000001000".
Moreover, with flags like -flto or -Wl,--gc-sections, the linker can
discard all code, rendering the checks useless.
Set main as entry symbol when linking with -nostartfiles to avoid
both issues. (Note that the binaries would still crash, but that
doesn't matter since they are never executed.)
Bug: https://bugs.gentoo.org/862540
Closes: https://bugs.gentoo.org/862798
Signed-off-by: Alexander Miller <alex.miller@gmx.de>
Signed-off-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'sys-libs')
| -rw-r--r-- | sys-libs/compiler-rt/compiler-rt-14.0.6-r1.ebuild | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys-libs/compiler-rt/compiler-rt-14.0.6-r1.ebuild b/sys-libs/compiler-rt/compiler-rt-14.0.6-r1.ebuild index 4ce8bbb484a7..c006ccddc481 100644 --- a/sys-libs/compiler-rt/compiler-rt-14.0.6-r1.ebuild +++ b/sys-libs/compiler-rt/compiler-rt-14.0.6-r1.ebuild @@ -88,8 +88,9 @@ src_configure() { local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}" ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}" elif test_compiler "${nolib_flags[@]}" -nostartfiles; then - # Avoiding -nostartfiles earlier on for bug #862540 - nolib_flags+=( -nostartfiles ) + # Avoiding -nostartfiles earlier on for bug #862540, + # and set available entry symbol for bug #862798. + nolib_flags+=( -nostartfiles -emain ) local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}" ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}" fi |