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-rw-r--r--gnu/packages/mp3.scm6
-rw-r--r--gnu/packages/patches/libmad-armv7-thumb-pt1.patch16
-rw-r--r--gnu/packages/patches/libmad-armv7-thumb-pt2.patch36
-rw-r--r--gnu/packages/patches/libmad-frame-length.patch199
4 files changed, 256 insertions, 1 deletions
diff --git a/gnu/packages/mp3.scm b/gnu/packages/mp3.scm
index 163e075f18..77eae65584 100644
--- a/gnu/packages/mp3.scm
+++ b/gnu/packages/mp3.scm
@@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -52,7 +53,10 @@
(sha256
(base32
"14460zhacxhswnzb36qfpd1f2wbk10qvksvm6wyq5hpvdgnw7ymv"))
- (patches (list (search-patch "libmad-mips-newgcc.patch")))))
+ (patches (map search-patch '("libmad-armv7-thumb-pt1.patch"
+ "libmad-armv7-thumb-pt2.patch"
+ "libmad-frame-length.patch"
+ "libmad-mips-newgcc.patch")))))
(build-system gnu-build-system)
(arguments
`(#:phases
diff --git a/gnu/packages/patches/libmad-armv7-thumb-pt1.patch b/gnu/packages/patches/libmad-armv7-thumb-pt1.patch
new file mode 100644
index 0000000000..86339ddad8
--- /dev/null
+++ b/gnu/packages/patches/libmad-armv7-thumb-pt1.patch
@@ -0,0 +1,16 @@
+Copied from Debian.
+
+From: Konstantinos Margaritis <markos@debian.org>
+Subject: use "adr" instead of "add" to make code ready for thumb2
+
+--- ./imdct_l_arm.S.orig 2010-02-25 13:25:23.000000000 +0100
++++ ./imdct_l_arm.S 2010-02-25 13:27:26.000000000 +0100
+@@ -468,7 +468,7 @@
+
+ @----
+
+- add r2, pc, #(imdct36_long_karray-.-8) @ r2 = base address of Knn array (PIC safe ?)
++ adr r2, imdct36_long_karray
+
+
+ loop:
diff --git a/gnu/packages/patches/libmad-armv7-thumb-pt2.patch b/gnu/packages/patches/libmad-armv7-thumb-pt2.patch
new file mode 100644
index 0000000000..bb450967e6
--- /dev/null
+++ b/gnu/packages/patches/libmad-armv7-thumb-pt2.patch
@@ -0,0 +1,36 @@
+Copied from Debian.
+
+From: Dave Martin
+Subject: "rsc" doesnt exist anymore in thumb2
+
+diff --git a/fixed.h b/fixed.h
+index 4b58abf..ba4bc26 100644
+--- a/fixed.h
++++ b/fixed.h
+@@ -275,12 +275,25 @@ mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
+ : "+r" (lo), "+r" (hi) \
+ : "%r" (x), "r" (y))
+
++#ifdef __thumb__
++/* In Thumb-2, the RSB-immediate instruction is only allowed with a zero
++ operand. If needed this code can also support Thumb-1
++ (simply append "s" to the end of the second two instructions). */
++# define MAD_F_MLN(hi, lo) \
++ asm ("rsbs %0, %0, #0\n\t" \
++ "sbc %1, %1, %1\n\t" \
++ "sub %1, %1, %2" \
++ : "+&r" (lo), "=&r" (hi) \
++ : "r" (hi) \
++ : "cc")
++#else /* ! __thumb__ */
+ # define MAD_F_MLN(hi, lo) \
+ asm ("rsbs %0, %2, #0\n\t" \
+ "rsc %1, %3, #0" \
+- : "=r" (lo), "=r" (hi) \
++ : "=&r" (lo), "=r" (hi) \
+ : "0" (lo), "1" (hi) \
+ : "cc")
++#endif /* __thumb__ */
+
+ # define mad_f_scale64(hi, lo) \
+ ({ mad_fixed_t __result; \
diff --git a/gnu/packages/patches/libmad-frame-length.patch b/gnu/packages/patches/libmad-frame-length.patch
new file mode 100644
index 0000000000..3434eba577
--- /dev/null
+++ b/gnu/packages/patches/libmad-frame-length.patch
@@ -0,0 +1,199 @@
+Copied from Debian.
+
+; You can calculate where the next frame will start depending on things
+; like the bitrate. See mad_header_decode(). It seems that when decoding
+; the frame you can go past that boundary. This attempts to catch those cases,
+; but might not catch all of them.
+; For more info see http://bugs.debian.org/508133
+Index: libmad-0.15.1b/layer12.c
+===================================================================
+--- libmad-0.15.1b.orig/layer12.c 2008-12-23 21:38:07.000000000 +0100
++++ libmad-0.15.1b/layer12.c 2008-12-23 21:38:12.000000000 +0100
+@@ -134,6 +134,12 @@
+ for (sb = 0; sb < bound; ++sb) {
+ for (ch = 0; ch < nch; ++ch) {
+ nb = mad_bit_read(&stream->ptr, 4);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ if (nb == 15) {
+ stream->error = MAD_ERROR_BADBITALLOC;
+@@ -146,6 +152,12 @@
+
+ for (sb = bound; sb < 32; ++sb) {
+ nb = mad_bit_read(&stream->ptr, 4);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ if (nb == 15) {
+ stream->error = MAD_ERROR_BADBITALLOC;
+@@ -162,6 +174,12 @@
+ for (ch = 0; ch < nch; ++ch) {
+ if (allocation[ch][sb]) {
+ scalefactor[ch][sb] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ # if defined(OPT_STRICT)
+ /*
+@@ -187,6 +205,12 @@
+ frame->sbsample[ch][s][sb] = nb ?
+ mad_f_mul(I_sample(&stream->ptr, nb),
+ sf_table[scalefactor[ch][sb]]) : 0;
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+ }
+
+@@ -195,6 +219,12 @@
+ mad_fixed_t sample;
+
+ sample = I_sample(&stream->ptr, nb);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ for (ch = 0; ch < nch; ++ch) {
+ frame->sbsample[ch][s][sb] =
+@@ -403,7 +433,15 @@
+ nbal = bitalloc_table[offsets[sb]].nbal;
+
+ for (ch = 0; ch < nch; ++ch)
++ {
+ allocation[ch][sb] = mad_bit_read(&stream->ptr, nbal);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
++ }
+ }
+
+ for (sb = bound; sb < sblimit; ++sb) {
+@@ -411,6 +449,13 @@
+
+ allocation[0][sb] =
+ allocation[1][sb] = mad_bit_read(&stream->ptr, nbal);
++
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+
+ /* decode scalefactor selection info */
+@@ -419,6 +464,12 @@
+ for (ch = 0; ch < nch; ++ch) {
+ if (allocation[ch][sb])
+ scfsi[ch][sb] = mad_bit_read(&stream->ptr, 2);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+ }
+
+@@ -442,6 +493,12 @@
+ for (ch = 0; ch < nch; ++ch) {
+ if (allocation[ch][sb]) {
+ scalefactor[ch][sb][0] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ switch (scfsi[ch][sb]) {
+ case 2:
+@@ -452,11 +509,23 @@
+
+ case 0:
+ scalefactor[ch][sb][1] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ /* fall through */
+
+ case 1:
+ case 3:
+ scalefactor[ch][sb][2] = mad_bit_read(&stream->ptr, 6);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+ }
+
+ if (scfsi[ch][sb] & 1)
+@@ -488,6 +557,12 @@
+ index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
+
+ II_samples(&stream->ptr, &qc_table[index], samples);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ for (s = 0; s < 3; ++s) {
+ frame->sbsample[ch][3 * gr + s][sb] =
+@@ -506,6 +581,12 @@
+ index = offset_table[bitalloc_table[offsets[sb]].offset][index - 1];
+
+ II_samples(&stream->ptr, &qc_table[index], samples);
++ if (mad_bit_nextbyte(&stream->ptr) > stream->next_frame)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ for (ch = 0; ch < nch; ++ch) {
+ for (s = 0; s < 3; ++s) {
+Index: libmad-0.15.1b/layer3.c
+===================================================================
+--- libmad-0.15.1b.orig/layer3.c 2008-12-23 21:38:07.000000000 +0100
++++ libmad-0.15.1b/layer3.c 2008-12-23 21:38:12.000000000 +0100
+@@ -2608,6 +2608,12 @@
+ next_md_begin = 0;
+
+ md_len = si.main_data_begin + frame_space - next_md_begin;
++ if (md_len + MAD_BUFFER_GUARD > MAD_BUFFER_MDLEN)
++ {
++ stream->error = MAD_ERROR_LOSTSYNC;
++ stream->sync = 0;
++ return -1;
++ }
+
+ frame_used = 0;
+
generated by cgit v1.2.3 (git 2.45.0) at 2024-12-21 03:21:28 +0000