FLAT objects cannot have multiple sections, so using the L1 attributes breaks

linking. The FDPIC relocs also break for any other format. Thus check the
compiler environment and select the appropriate sections/relocs.
patch by Mike Frysinger, vapier.adi a gmail d com

Originally committed as revision 12125 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/bfin/config_bfin.h

@@ -35,10 +35,14 @@ DEFUN(put_pixels_clamped,mL1,
 
 #ifndef DEFUN
 
-#ifndef mL1
-#define mL1 .l1.text
-#endif
 #define mL3 .text
+#ifndef mL1
+#ifdef __FDPIC__
+#define mL1 .l1.text
+#else
+#define mL1 mL3
+#endif
+#endif
 
 #define DEFUN(fname,where,interface) \
         .section where;              \
@@ -50,6 +54,11 @@ DEFUN(put_pixels_clamped,mL1,
 #define DEFUN_END(fname) \
         .size _ff_bfin_ ## fname, . - _ff_bfin_ ## fname
 
+#ifdef __FDPIC__
+#define RELOC(reg,got,obj) reg = [got + obj@GOT17M4]
+#else
+#define RELOC(reg,got,obj) reg.L = obj; reg.H = obj
+#endif
 
 #endif
 

libavcodec/bfin/dsputil_bfin.c

@@ -173,7 +173,7 @@ static int bfin_vsad (void *c, uint8_t *blk1, uint8_t *blk2, int stride, int h)
         + ff_bfin_z_sad16x16 (blk2,blk2+stride,stride<<1,stride<<1,h);
 }
 
-static uint8_t vtmp_blk[256] __attribute__((l1_data_B));
+static uint8_t vtmp_blk[256] attribute_l1_data_b;
 
 static int bfin_pix_abs16_x2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
 {

libavcodec/bfin/dsputil_bfin.h

@@ -24,7 +24,13 @@
 #ifndef FFMPEG_DSPUTIL_BFIN_H
 #define FFMPEG_DSPUTIL_BFIN_H
 
+#ifdef __FDPIC__
 #define attribute_l1_text  __attribute__ ((l1_text))
+#define attribute_l1_data_b __attribute__((l1_data_B))
+#else
+#define attribute_l1_text
+#define attribute_l1_data_b
+#endif
 
 #ifdef BFIN_PROFILE
 

libavcodec/bfin/fdct_bfin.S

@@ -129,23 +129,30 @@ root:/u/ffmpeg/bhead/libavcodec>
 
 #include "config_bfin.h"
 
+#ifdef __FDPIC__
 .section .l1.data.B,"aw",@progbits
+#else
+.data
+#endif
 .align 4;
 dct_coeff:
 .short 0x5a82, 0x2d41, 0x187e, 0x3b21, 0x0c7c, 0x3ec5, 0x238e, 0x3537;
 
+#ifdef __FDPIC__
 .section .l1.data.A,"aw",@progbits
+#endif
 .align 4
 vtmp:   .space 128
 
+.text
 DEFUN(fdct,mL1,
         (DCTELEM *block)):
     [--SP] = (R7:4, P5:3);          // Push the registers onto the stack.
 
     b0 = r0;
-    r0 = [P3+dct_coeff@GOT17M4];
+    RELOC(r0, P3, dct_coeff);
     b3 = r0;
-    r0 = [P3+vtmp@GOT17M4];
+    RELOC(r0, P3, vtmp);
     b2 = r0;
 
     L3 = 16;                        // L3 is set to 16 to make the coefficient

libavcodec/bfin/idct_bfin.S

@@ -57,7 +57,11 @@ IDCT BFINidct: 88.3 kdct/s
 
 #include "config_bfin.h"
 
+#ifdef __FDPIC__
 .section .l1.data.B,"aw",@progbits
+#else
+.data
+#endif
 
 .align 4;
 coefs:
@@ -72,7 +76,9 @@ coefs:
 .short 0x18F9;           //cos(7pi/16)
 .short 0x7D8A;           //cos(pi/16)
 
-.section .l1.data.A
+#ifdef __FDPIC__
+.section .l1.data.A,"aw",@progbits
+#endif
 
 vtmp: .space 256
 
@@ -81,6 +87,7 @@ vtmp: .space 256
 #define TMP2 FP-16
 
 
+.text
 DEFUN(idct,mL1,
         (DCTELEM *block)):
 
@@ -88,8 +95,8 @@ DEFUN(idct,mL1,
     link 16;
     [--SP] = (R7:4, P5:3);   // Push the registers onto the stack.
     B0 = R0;                 // Pointer to Input matrix
-    R1 = [P3+coefs@GOT17M4]; // Pointer to Coefficients
-    R2 = [P3+vtmp@GOT17M4];  // Pointer to Temporary matrix
+    RELOC(R1, P3, coefs);    // Pointer to Coefficients
+    RELOC(R2, P3, vtmp);     // Pointer to Temporary matrix
     B3 = R1;
     B2 = R2;
     L3 = 20;                // L3 is used for making the coefficient array

libavcodec/bfin/vp3_idct_bfin.S

@@ -30,7 +30,11 @@ Registers Used  : A0, A1, R0-R7, I0-I3, B0, B2, B3, M0-M2, L0-L3, P0-P5, LC0.
 
 #include "config_bfin.h"
 
+#ifdef __FDPIC__
 .section .l1.data.B,"aw",@progbits
+#else
+.data
+#endif
 
 .align 4;
 coefs:
@@ -45,7 +49,9 @@ coefs:
 .short 0x18F9;           //cos(7pi/16)
 .short 0x7D8A;           //cos(pi/16)
 
+#ifdef __FDPIC__
 .section .l1.data.A
+#endif
 
 vtmp: .space 256
 
@@ -54,6 +60,7 @@ vtmp: .space 256
 #define TMP2 FP-16
 
 
+.text
 DEFUN(vp3_idct,mL1,
         (DCTELEM *block)):
 
@@ -61,8 +68,8 @@ DEFUN(vp3_idct,mL1,
     link 16;
     [--SP] = (R7:4, P5:3);   // Push the registers onto the stack.
     B0 = R0;                 // Pointer to Input matrix
-    R1 = [P3+coefs@GOT17M4]; // Pointer to Coefficients
-    R2 = [P3+vtmp@GOT17M4];  // Pointer to Temporary matrix
+    RELOC(R1, P3, coefs);    // Pointer to Coefficients
+    RELOC(R2, P3, vtmp);     // Pointer to Temporary matrix
     B3 = R1;
     B2 = R2;
     L3 = 20;                // L3 is used for making the coefficient array