Merge pull request #7490 from tmm1/clarify-glibc-patches

Document more context around widevine glibc patches

packages/devel/glibc/patches/arm/glibc-HACK-Don-t-check-GLIBC_ABI_DT_RELR-support-for-Chrom.patch

@@ -4,6 +4,7 @@ Date: Sun, 17 Jul 2022 12:16:20 +0200
 Subject: [PATCH] HACK: Don't check GLIBC_ABI_DT_RELR support for ChromeOS
  libwidevinecdm.so
 
+Required starting with glibc 2.36
 ---
  elf/dl-version.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

packages/devel/glibc/patches/arm/glibc-tls-libwidevinecdm.so-since-4.10.2252.0-has-TLS-with.patch

@@ -6,6 +6,8 @@ Subject: [PATCH] tls: libwidevinecdm.so: since 4.10.2252.0 has TLS with
  to use dlopen again. Tests by changing TLS_TCB_ALIGN directly showed up some
  random crashes. Reverence: https://lkml.org/lkml/2020/7/3/754
 
+Without this patch, a SEGV is encountered when dlopen(libwidevinecdm.so),
+inside dl-init.c call_init()
 ---
  elf/dl-tls.c | 5 +++++
  1 file changed, 5 insertions(+)