diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2006-11-17 06:51:34 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2006-11-17 06:51:34 +0000 |
| commit | a86d1a42c8ddc7cc36f28921e2c0201b08138943 (patch) | |
| tree | 5ea208bd46b020940b62f0c391b53ac755879e50 /libc/sysdeps/linux/bfin/crt1.S | |
| parent | a9f3bfe7dd2f2b3f690ff88d9ce83858f9b85b6d (diff) | |
Bernd Schmidt writes: [blackfin updates] add support for FDPIC and include L1 functions
Diffstat (limited to 'libc/sysdeps/linux/bfin/crt1.S')
| -rw-r--r-- | libc/sysdeps/linux/bfin/crt1.S | 53 |
1 files changed, 48 insertions, 5 deletions
diff --git a/libc/sysdeps/linux/bfin/crt1.S b/libc/sysdeps/linux/bfin/crt1.S index ead8dbfbe..ffbd6e9af 100644 --- a/libc/sysdeps/linux/bfin/crt1.S +++ b/libc/sysdeps/linux/bfin/crt1.S @@ -34,11 +34,15 @@ Cambridge, MA 02139, USA. */ #include <features.h> +#ifndef L_Scrt1 + .text .align 2 .global __start; .type __start,STT_FUNC; -.global ___uClibc_main; +.weak __init; +.weak __fini; +.global ___uClibc_main; .type ___uClibc_main,STT_FUNC; /* Stick in a dummy reference to main(), so that if an application @@ -49,7 +53,7 @@ Cambridge, MA 02139, USA. */ __start: -#ifdef __BFIN_FDPIC__ +#if defined(__BFIN_FDPIC__) && !defined(__pie__) /* P0 contains a pointer to the program's load map. */ call .Lcall; .Lcall: @@ -77,7 +81,10 @@ __start: L1 = 0; L2 = 0; L3 = 0; - + +#ifdef __ID_SHARED_LIB__ + CALL ___shared_flat_add_library; +#endif /* Load register R1 (argc) from the stack to its final resting place */ P0 = SP; R1 = [P0++]; @@ -92,21 +99,37 @@ __start: R3 += 4; R3 = R2 + R3; - SP += -24; + P2 = SP; + SP += -32; [SP + 12] = R3; +#ifndef __BFIN_FDPIC__ + R7 = 0; +#endif + /* Pass highest stack pointer to the app. */ + [SP + 28] = P2; + /* Store the pointer to ld.so's fini that we got in P1. */ + [SP + 24] = R7; + /* Ok, now run uClibc's main() -- shouldn't return */ #if defined L_crt1 && defined __UCLIBC_CTOR_DTOR__ + #ifdef __BFIN_FDPIC__ R3 = [P3 + __init@FUNCDESC_GOT17M4]; +#elif defined __ID_SHARED_LIB__ + P5 = [P5 + _current_shared_library_p5_offset_]; + R3 = [P5 + ___shared_flat_init@GOT]; #else R3.H = __init; R3.L = __init; #endif [SP+16] = R3; + #ifdef __BFIN_FDPIC__ R3 = [P3 + __fini@FUNCDESC_GOT17M4]; -#else +#elif defined __ID_SHARED_LIB__ + R3 = [P5 + ___shared_flat_fini@GOT]; +#else R3.H = __fini; R3.L = __fini; #endif @@ -119,8 +142,28 @@ __start: #ifdef __BFIN_FDPIC__ R0 = [P3 + _main@FUNCDESC_GOT17M4]; +#elif defined __ID_SHARED_LIB__ + R0 = [P5 + _main@GOT]; #else R0.H = _main; R0.L = _main; #endif +#ifdef __ID_SHARED_LIB__ + P0 = [P5 + ___uClibc_main@GOT]; + jump (P0) +#else jump.l ___uClibc_main; +#endif + +#else + .text + .global lib_main + .hidden lib_main + .type lib_main,@function +lib_main: + RETS = [SP++]; + P0 = [P5 + ___shared_flat_add_library@GOT]; + JUMP (P0); + + .hidden _current_shared_library_p5_offset_ +#endif |