Pushed to r15-7581. 在 2025/2/12 下午4:01, Lulu Cheng 写道:
Due to the presence of R_LARCH_B26 in /usr/lib/gcc/loongarch64-linux-gnu/14/crtbeginS.o, its addressing range is [PC-128MiB, PC+128MiB-4]. This means that when the code segment size exceeds 128MB, linking with lld will definitely fail (ld will not fail because the order of the two is different).The linking order: lld: crtbeginS.o + .text + .plt ld : .plt + crtbeginS.o + .text To solve this issue, add '-mcmodel=extreme' when compiling crtbeginS.o. libgcc/ChangeLog: * config/loongarch/t-crtstuff: Add '-mcmodel=extreme' to CRTSTUFF_T_CFLAGS_S. --- libgcc/config/loongarch/t-crtstuff | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libgcc/config/loongarch/t-crtstuff b/libgcc/config/loongarch/t-crtstuff index b8c36eb66b7..2a2489b7ef4 100644 --- a/libgcc/config/loongarch/t-crtstuff +++ b/libgcc/config/loongarch/t-crtstuff @@ -3,3 +3,9 @@ # to .eh_frame data from crtbeginT.o instead of the user-defined object # during static linking. CRTSTUFF_T_CFLAGS += -fno-omit-frame-pointer -fno-asynchronous-unwind-tables + +# As shown in the test case PR118844, when using lld for linking, +# it fails due to B26 in crtbeginS.o causing the link to exceed the range. +# Therefore, the issue was resolved by adding the compilation option +# "-mcmodel=extreme" when compiling crtbeginS.o. +CRTSTUFF_T_CFLAGS_S += -mcmodel=extreme
