glibc 2.7 fails to build with gcc 4.3.1 (error messages given below). Investigating the error, I stumbled upon PR 36111. Applying the patch from
http://gcc.gnu.org/viewcvs/trunk/gcc/ChangeLog?view=markup&pathrev=135221 makes gcc 4.3.1 build glibc OK (and everything else that I tried). Maybe someone could comment on whether this is the correct way of fixing it. --------------------------------------------------------------------------- [...] malloc.c: In function 'mALLOPt': malloc.c:5731: error: invalid rtl sharing found in the insn (insn 131 128 136 24 malloc.c:5729 (parallel [ (set (mem/s/c:SI (plus:SI (reg:SI 3 bx) (const:SI (unspec:SI [ (symbol_ref:SI ("main_arena") [flags 0x2] <var_decl 0x406e14d0 main_arena>) ] 1))) [3 main_arena.mutex+0 S4 A256]) (asm_operands/v:SI ("cmpl $0, %%gs:%P3 je 0f lock 0: subl $1,%0 jne _L_unlock_%= .subsection 1 .type _L_unlock_%=,@function _L_unlock_%=: 1: leal %0, %%eax 2: call __lll_unlock_wake_private 3: jmp 18f 4: .size _L_unlock_%=, 4b-1b .previous .section .eh_frame,"a",@progbits 5: .long 7f-6f # Length of Common Information Entry 6: .long 0x0 # CIE Identifier Tag .byte 0x1 # CIE Version .ascii "zR\0" # CIE Augmentation .uleb128 0x1 # CIE Code Alignment Factor .sleb128 -4 # CIE Data Alignment Factor .byte 0x8 # CIE RA Column .uleb128 0x1 # Augmentation size .byte 0x1b # FDE Encoding (pcrel sdata4) .byte 0xc # DW_CFA_def_cfa .uleb128 0x4 .uleb128 0x0 .align 4 7: .long 17f-8f # FDE Length 8: .long 8b-5b # FDE CIE offset .long 1b-. # FDE initial location .long 4b-1b # FDE address range .uleb128 0x0 # Augmentation size .byte 0x16 # DW_CFA_val_expression .uleb128 0x8 .uleb128 10f-9f 9: .byte 0x78 # DW_OP_breg8 .sleb128 3b-1b 10: .byte 0x40 + (2b-1b) # DW_CFA_advance_loc .byte 0x16 # DW_CFA_val_expression .uleb128 0x8 .uleb128 12f-11f 11: .byte 0x78 # DW_OP_breg8 .sleb128 3b-2b 12: .byte 0x40 + (3b-2b-1) # DW_CFA_advance_loc .byte 0x16 # DW_CFA_val_expression .uleb128 0x8 .uleb128 16f-13f 13: .byte 0x78 # DW_OP_breg8 .sleb128 15f-14f .byte 0x0d # DW_OP_const4s 14: .4byte 3b-. .byte 0x1c # DW_OP_minus .byte 0x0d # DW_OP_const4s 15: .4byte 18f-. .byte 0x22 # DW_OP_plus 16: .align 4 17: .previous 18:") ("=m") 0 [ (mem/s/c:SI (plus:SI (reg:SI 3 bx) (const:SI (unspec:SI [ (symbol_ref:SI ("main_arena") [flags 0x2] <var_decl 0x406e14d0 main_arena>) ] 1))) [3 main_arena.mutex+0 S4 A256]) (const_int 12 [0xc]) ] [ (asm_input:SI ("m") 0) (asm_input:SI ("i") 0) ] 7217092)) (set (reg/v:SI 59 [ ignore ]) (asm_operands/v:SI ("cmpl $0, %%gs:%P3 je 0f lock 0: subl $1,%0 jne _L_unlock_%= .subsection 1 .type _L_unlock_%=,@function _L_unlock_%=: 1: leal %0, %%eax 2: call __lll_unlock_wake_private 3: jmp 18f 4: .size _L_unlock_%=, 4b-1b .previous .section .eh_frame,"a",@progbits 5: .long 7f-6f # Length of Common Information Entry 6: .long 0x0 # CIE Identifier Tag .byte 0x1 # CIE Version .ascii "zR\0" # CIE Augmentation .uleb128 0x1 # CIE Code Alignment Factor .sleb128 -4 # CIE Data Alignment Factor .byte 0x8 # CIE RA Column .uleb128 0x1 # Augmentation size .byte 0x1b # FDE Encoding (pcrel sdata4) .byte 0xc # DW_CFA_def_cfa .uleb128 0x4 .uleb128 0x0 .align 4 7: .long 17f-8f # FDE Length 8: .long 8b-5b # FDE CIE offset .long 1b-. # FDE initial location .long 4b-1b # FDE address range .uleb128 0x0 # Augmentation size .byte 0x16 # DW_CFA_val_expression .uleb128 0x8 .uleb128 10f-9f 9: .byte 0x78 # DW_OP_breg8 .sleb128 3b-1b 10: .byte 0x40 + (2b-1b) # DW_CFA_advance_loc .byte 0x16 # DW_CFA_val_expression .uleb128 0x8 .uleb128 12f-11f 11: .byte 0x78 # DW_OP_breg8 .sleb128 3b-2b 12: .byte 0x40 + (3b-2b-1) # DW_CFA_advance_loc .byte 0x16 # DW_CFA_val_expression .uleb128 0x8 .uleb128 16f-13f 13: .byte 0x78 # DW_OP_breg8 .sleb128 15f-14f .byte 0x0d # DW_OP_const4s 14: .4byte 3b-. .byte 0x1c # DW_OP_minus .byte 0x0d # DW_OP_const4s 15: .4byte 18f-. .byte 0x22 # DW_OP_plus 16: .align 4 17: .previous 18:") ("=&a") 1 [ (mem/s/c:SI (plus:SI (reg:SI 3 bx) (const:SI (unspec:SI [ (symbol_ref:SI ("main_arena") [flags 0x2] <var_decl 0x406e14d0 main_arena>) ] 1))) [3 main_arena.mutex+0 S4 A256]) (const_int 12 [0xc]) ] [ (asm_input:SI ("m") 0) (asm_input:SI ("i") 0) ] 7217092)) (clobber (reg:QI 18 fpsr)) (clobber (reg:QI 17 flags)) (clobber (mem:BLK (scratch) [0 A8])) ]) -1 (expr_list:REG_UNUSED (reg/v:SI 59 [ ignore ]) (expr_list:REG_UNUSED (reg:QI 18 fpsr) (expr_list:REG_UNUSED (reg:QI 17 flags) (nil))))) malloc.c:5731: error: shared rtx (const:SI (unspec:SI [ (symbol_ref:SI ("main_arena") [flags 0x2] <var_decl 0x406e14d0 main_arena>) ] 1)) malloc.c:5731: internal compiler error: internal consistency failure Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[2]: *** [/fromscratch-toolbase/src/glibc/build/malloc/malloc.os] Error 1 make[2]: *** Waiting for unfinished jobs.... make[2]: Leaving directory `/fs/tmp/mount/chroot/gcc43/fromscratch-toolbase/src/glibc/unpack/glibc-2.7/malloc' make[1]: *** [malloc/subdir_lib] Error 2 make[1]: Leaving directory `/fs/tmp/mount/chroot/gcc43/fromscratch-toolbase/src/glibc/unpack/glibc-2.7' make: *** [all] Error 2
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