From 99de07db83452d0d68faab2bb36f3853d0b7af44 Mon Sep 17 00:00:00 2001
From: Dong Heng <dongheng@espressif.com>
Date: Thu, 12 Mar 2020 18:55:57 +0800
Subject: [PATCH] feat(freertos): add thread local private "errno"

---
 components/freertos/freertos/tasks.c          |  18 ++++++
 components/freertos/include/freertos/task.h   |   1 +
 components/freertos/port/esp8266/impure.c     |   7 +++
 .../esp8266/include/freertos/FreeRTOSConfig.h |   9 ++-
 components/freertos/test/CMakeLists.txt       |   3 +
 components/freertos/test/component.mk         |   5 ++
 components/freertos/test/test_errno.c         |  57 ++++++++++++++++++
 components/newlib/newlib/lib/libc.a           | Bin 6372580 -> 6368900 bytes
 components/newlib/newlib/lib/libc_fnano.a     | Bin 5149388 -> 5145708 bytes
 components/newlib/newlib/lib/libc_nano.a      | Bin 5357284 -> 5349024 bytes
 components/newlib/newlib/lib/strip_symbols.sh |  11 ++++
 11 files changed, 109 insertions(+), 2 deletions(-)
 create mode 100644 components/freertos/test/CMakeLists.txt
 create mode 100644 components/freertos/test/component.mk
 create mode 100644 components/freertos/test/test_errno.c
 create mode 100755 components/newlib/newlib/lib/strip_symbols.sh

diff --git a/components/freertos/freertos/tasks.c b/components/freertos/freertos/tasks.c
index 6a65fdd9..66c7e854 100644
--- a/components/freertos/freertos/tasks.c
+++ b/components/freertos/freertos/tasks.c
@@ -3490,6 +3490,24 @@ static portTASK_FUNCTION( prvIdleTask, pvParameters )
 		return pvReturn;
 	}
 
+	void **pvTaskGetThreadLocalStorageBufferPointer( TaskHandle_t xTaskToQuery, BaseType_t xIndex )
+	{
+	void **pvReturn = NULL;
+	TCB_t *pxTCB;
+
+		if( xIndex < configNUM_THREAD_LOCAL_STORAGE_POINTERS )
+		{
+			pxTCB = prvGetTCBFromHandle( xTaskToQuery );
+			pvReturn = &pxTCB->pvThreadLocalStoragePointers[ xIndex ];
+		}
+		else
+		{
+			pvReturn = NULL;
+		}
+
+		return pvReturn;
+	}
+
 #endif /* configNUM_THREAD_LOCAL_STORAGE_POINTERS */
 /*-----------------------------------------------------------*/
 
diff --git a/components/freertos/include/freertos/task.h b/components/freertos/include/freertos/task.h
index 7eb67a9f..bd677d8c 100644
--- a/components/freertos/include/freertos/task.h
+++ b/components/freertos/include/freertos/task.h
@@ -1458,6 +1458,7 @@ constant. */
 	used to set and query a pointer respectively. */
 	void vTaskSetThreadLocalStoragePointer( TaskHandle_t xTaskToSet, BaseType_t xIndex, void *pvValue ) PRIVILEGED_FUNCTION;
 	void *pvTaskGetThreadLocalStoragePointer( TaskHandle_t xTaskToQuery, BaseType_t xIndex ) PRIVILEGED_FUNCTION;
+	void **pvTaskGetThreadLocalStorageBufferPointer( TaskHandle_t xTaskToQuery, BaseType_t xIndex ) PRIVILEGED_FUNCTION;
 
 	#if ( configTHREAD_LOCAL_STORAGE_DELETE_CALLBACKS )
 		/**
diff --git a/components/freertos/port/esp8266/impure.c b/components/freertos/port/esp8266/impure.c
index ecea43f3..710514dd 100644
--- a/components/freertos/port/esp8266/impure.c
+++ b/components/freertos/port/esp8266/impure.c
@@ -17,6 +17,8 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
+#define ERRNO_TLS_INDEX (configNUM_THREAD_LOCAL_STORAGE_POINTERS - 1)
+
 static struct _reent impure_data;
 struct _reent *_global_impure_ptr = &impure_data;
 
@@ -44,3 +46,8 @@ struct _reent *__getreent()
 #endif
     return _global_impure_ptr;
 }
+
+int *__errno(void)
+{
+    return (int *)pvTaskGetThreadLocalStorageBufferPointer(NULL, ERRNO_TLS_INDEX);
+}
diff --git a/components/freertos/port/esp8266/include/freertos/FreeRTOSConfig.h b/components/freertos/port/esp8266/include/freertos/FreeRTOSConfig.h
index bc7f3115..bfbda69a 100644
--- a/components/freertos/port/esp8266/include/freertos/FreeRTOSConfig.h
+++ b/components/freertos/port/esp8266/include/freertos/FreeRTOSConfig.h
@@ -128,10 +128,15 @@ NVIC value of 255. */
 #define configUSE_NEWLIB_REENTRANT  1
 #endif
 
+/**
+ * 0: LwIP
+ * 1: pthread (optional)
+ * 2: errno
+ */
 #ifdef CONFIG_ENABLE_PTHREAD
-#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 2
+#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 3
 #else
-#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 1
+#define configNUM_THREAD_LOCAL_STORAGE_POINTERS 2
 #endif
 #define configTHREAD_LOCAL_STORAGE_DELETE_CALLBACKS 1
 
diff --git a/components/freertos/test/CMakeLists.txt b/components/freertos/test/CMakeLists.txt
new file mode 100644
index 00000000..6cb8b29f
--- /dev/null
+++ b/components/freertos/test/CMakeLists.txt
@@ -0,0 +1,3 @@
+idf_component_register(SRC_DIRS "."
+                    INCLUDE_DIRS "."
+                    REQUIRES unity test_utils freertos)
diff --git a/components/freertos/test/component.mk b/components/freertos/test/component.mk
new file mode 100644
index 00000000..5dd172bd
--- /dev/null
+++ b/components/freertos/test/component.mk
@@ -0,0 +1,5 @@
+#
+#Component Makefile
+#
+
+COMPONENT_ADD_LDFLAGS = -Wl,--whole-archive -l$(COMPONENT_NAME) -Wl,--no-whole-archive
diff --git a/components/freertos/test/test_errno.c b/components/freertos/test/test_errno.c
new file mode 100644
index 00000000..8e167154
--- /dev/null
+++ b/components/freertos/test/test_errno.c
@@ -0,0 +1,57 @@
+/* mbedTLS AES performance test
+*/
+#include <string.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <sys/errno.h>
+#include "unity.h"
+#include "sdkconfig.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/semphr.h"
+
+void __set_errno(int i)
+{
+    errno = i;
+}
+
+void __get_errno(int *i)
+{
+    *i = errno;
+}
+
+static void errno_check_task(void *p)
+{
+    SemaphoreHandle_t wait_sem = p;
+
+    for (volatile int i = 0; i < 10 * 1000 * 1000; i++) {
+        int j;
+
+        __set_errno(i);
+        __get_errno(&j);
+        assert(i == j);
+    }
+
+    xSemaphoreGive(wait_sem);
+
+    vTaskDelete(NULL);
+}
+
+TEST_CASE("thread local errno", "[reent]")
+{
+    SemaphoreHandle_t wait1_sem, wait2_sem;
+
+    wait1_sem = xSemaphoreCreateBinary();
+    wait2_sem = xSemaphoreCreateBinary();
+
+    xTaskCreatePinnedToCore(&errno_check_task, "errno1", 2048, wait1_sem, 3, NULL, cpuid_0);
+    xTaskCreatePinnedToCore(&errno_check_task, "errno2", 2048, wait2_sem, 3, NULL, cpuid_1);
+
+    xSemaphoreTake(wait1_sem, portMAX_DELAY);
+    xSemaphoreTake(wait2_sem, portMAX_DELAY);
+
+    vQueueDelete(wait1_sem);
+    vQueueDelete(wait2_sem);
+}
+
+
diff --git a/components/newlib/newlib/lib/libc.a b/components/newlib/newlib/lib/libc.a
index e34f3baba2c115ba90762b1052d78660a7255af8..a7f4c035fbaece5fce3b49f43726b370299663bb 100644
GIT binary patch
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diff --git a/components/newlib/newlib/lib/libc_fnano.a b/components/newlib/newlib/lib/libc_fnano.a
index 4d972b58a840845e7bcdaaaa8c3f2d43edafca99..a7e20f527a427f1deabe068b74893ef5997201f6 100644
GIT binary patch
delta 3759
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zj+aD6NsE?LrlFNYwCK>(i6p^@8EiI$rhXs|QKr%v#u7&(8fr0Pl_=3Z=N?h8wau5_
zncs7s^PKbT-gC}9BgfwNnr?mHt366IoAjBctPGP%rB|_MVN|IMMnk$$s=NFE?{$D>
z9Qcld+dK&DGyz=$z{x(~bTcsQ1a9U+=52;7(g|702xOLO$i6=bS>qMR+WH|o+6dWT
zFJzxoL6rT&0olV~c*Q&5mGhMCP4HUibv?Y8Q#0`TLJ6-sJ@8(V0PhvOT+SrCnN3t<
zTC3sRIS21IbK!kg0eQdx<e9~gm&|c)od|ggApiLU<OgZ+Y(3;x#vy;u3ZEbWKAH$l
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zdkQF)jX|LqgrYzT#dGJN*ye=dB^CGk1}OR`p%}M8am@q8y;_N{st1w{!|-MHx4`#w
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zvV<%>tqxIa`pv$JXB5Pj_z`~+Kmy4!5=4SY2ni+2iIS`!VI-VHkVq0mqKQCaNGw@N
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fq<|EXB2rA&l69nn*hncUBjv<?`r?_2e~$kPfX8?|

delta 4524
zcmcK7e^gWF83*w14L1;e2ZInLU<eTrBS|1&P!a;Q5+GRIp&oXMYmP%lCjwRK;hfTj
zwydR&b+qDM*5Vm<x@onTwy4Zfhb`@)D{5%z$~jVp9Xi)ho1Ri-mexJ@UaPRR`|-!_
zIiKf!-sgRDf4sT5NhVuP$cFZxkhLw`wf0JoCrhg}X@zZe)N0M?W{X9vyF-A00>C~2
ztaD2?4FWqHK<5B(qz^dW3Jg>NSDfGiR)bqm32yl)IC~YiyC=cb`@yyLgL}RSTwf2k
z(-q)8b%VR1@j#aBhHTY8scnXAwmmtJ369P{c1a7_RWAYpEeM$3BUv?x0KrD830kTU
z@Jj^(UT`AdS~U2u0q|L+;GGIdqZNE}82F!hE`#4igReD!pO^subvxvdDUj>*5<>&z
zHXr0A7RWc$L0(r4`O%@dK5BuS1cn|!;Kg<Xe$_Ka5FO)N9T}whaW8@d=cf>KJsOIL
zaVT_yP~@4QSU&<qO(hhM7$k=pq4=E-iZ>ikTsi>7RV{)Q0}>;TU_rHB^4tW1-<(G9
zCn*Stbt1&xeA`b-5h6I615d~sln6d=6NM(aAS&!csNk_i$%$5keq*{0p(JdvMY2(i
zFu@)r!UmlP^H2S^JaZ<7yJrx-Z2;j<DiQ7-6-7jtAlhm`gkW#)T<;7bLh$v7DAL#n
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z(=*Wgsu>!u8k&A3G`?17#+wn39K?qYAwHoD@o5^w+oKVG7ZCr0X~fs`BfhZ}@jIy|
z_)U-Gj1}>MnPwyecOb#&N5c2VCCz<E5InCzg6F6S37^m0lDMoMiIxc@=9eRJy;f3Z
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zk{fkMifoeP=O9V2l|1A_(r??4biDGmKWmXRH4VMI68Z(>(5Jef&!75Vc%VP3#p1vm
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ziZr<rX<?I++y<oWsFds}L)x(x$@x~K5o2g6j7cdl8an1GZ-%jE3dW{7fd|IJqcHla
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z10{mTJ0+bxC^=k)lD@+zIX!|B`srSBrAxF{R|U~p2i87V{fayMXh7h-o3?GMseMcp
z^@J*lBQg>|cp@i(B<Q#*N>TYNFU({|uF8_xX9bDNWNpDL;SF01yL{Fh!Oph?WW~G;
zfF~5WO%%hDDV$*sD=k{~@n^b-Est{ae~k;=AvTIvX*574e@f^ng4PN>UhWWjd{Bqf
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z%N8h=+5Pv$YUR>y9(mt!Y*$mk8Fr?dQ?jS7aXMCdDK3K5{M8Y{sn~F@P8})Eq|>~)
z)8ow_m@7EeFk~~$dx5T+6PALuZo-AJD}LEV=KLUTKD+z0Z96MHowAq@qPK;8cAA#O
zf5_$KDp=Gxb1Z9n#%c|&r?E16WgHuR#+t+(W2e51OJct58eXoYb%|q9i{y*s>6C8S
zWiC-M<w}i`+rwVcIhM#SE7+N{bTf24tWa{VvAq`+vAf*QDw*<RHqW#^TQnQnn5yJX
zvzG$xvCQ|fOexa`vl<`0#GM_W2sa6*O<Omu`rci6m8xC+-8@sDGKFz>v0*+SmMIsQ
z`EWYJTiZ?+)e{oS>f8Z5oBmsT8236$bjf2`(|g5q$Vn=cv8O+zi|ZVhE4e?g`-MU8
zs}V}MI~XvrPaan#$*<G>dR@F4cWQDJCub|4P$kPPbQ}#cZ_Qfp#EwG>5==r!C<!Cs
zB!WZ|C5a;Qh>Ap$`6PzK5;YO_vyj9Q4T&cSWD(JlM4}@}L{AozWU_>$kfkJ*EF%W8
zoTL#WF%dIKCmF;-GD#L$L98U3tR$;Q4zUqC$t4bwNAk%XWHq^ytRV%&NeW33DJHJt
KI}Vjx9sLI+Nmj4`

diff --git a/components/newlib/newlib/lib/libc_nano.a b/components/newlib/newlib/lib/libc_nano.a
index 22b45fe12ee76108a5f754dc98cc1a5a98739e3a..a82d270b22c31a2d7681b451feb77546b06a95a2 100644
GIT binary patch
delta 3775
zcmcK6e^8V69S87tAZQ3denpI$Ktdu!36NiqAP4~>0tpa$u18n&?8%hfVdW;PtmXRP
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z*XQ&3e!ky(?)h=|e4okrOCkRAmqI#LadxXQ%bJ~)sa6}+{INKy)h4saVix+_q(Epf
zkT(uI6U}@(7kH@~IBo<kNPtUY!0+0C`ALZ491yMTg($BPqKXEHb~Hn@Uk%YwK=k%~
zh<@#d=!Owo2$~QQtw4y)fDm^}Fm4VZi=F612yeU-p^_Gat`s9wPuX^#+3G+juhqxA
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zHF|{YYC>3Z0AX#^_tX4mG`GkSod*K<ES6^UVrlhMu&aJ7{SwX(iE<he-6-P*Bs*In
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zU>nS@kHOqK3G-Py%-5_BaWGH$VgB3;i?kM&)pl46fW=V)%hx+#`KB`1k#1NP`z6iu
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zit1%HG{WW4!L>~Z*Rz9gadmLDcfxga46c*)%=<pL2<Lub3hqPAaQ{pU_i6I0I=HX)
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z2Nm;rRBCEbSuNvjL*=0kRQAlG^4%d+en5G4a)C$N4}p6O9^SqH^U85}j_Kj)cfvy#
z?77+r&tK$%DpfNCr7~1Kr#Mv`c{=oanwSHc7!e5}p+ro=$P%)YNX}?t!k=7q;G`>@
zNJ#{dkw~(PM3HC`Lt;rBk(1>lo~$4WvXb!USxuBgMG{CNQ4<YGB3hy&Ye+IlA$qcw
ztRtz!K+;G$$sk5zB4%PCR+34wh>h4uHd#+{NG{nx@<={$kOERjiineJB*kPCDIuk#
VjJSxKl#>clNjzsxx~ekw{0q7NSP=jK

delta 5237
zcmcK8e^gUvng{UjO>Q8V0D(jZm_U$7K>~z8Bm{-<Lj?&C)afuYsOd;8I%=uX9k)e8
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zySim3u0i=)E0jY)h%v1Y({Dli-XVzV24&Au{wU=GFV#WpwL`qz3YE|eRfY~Kx>8l`
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zZgN}_o@z(<3LyN+#=leGTZLCA5q@hJ5qcdW+|+Xi56Es@K?I3R^Uk!Q9Fg4aVcDxe
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diff --git a/components/newlib/newlib/lib/strip_symbols.sh b/components/newlib/newlib/lib/strip_symbols.sh
new file mode 100755
index 00000000..852000a6
--- /dev/null
+++ b/components/newlib/newlib/lib/strip_symbols.sh
@@ -0,0 +1,11 @@
+
+libs="libc_fnano.a libc.a libc_nano.a"
+symbols="lib_a-errno.o"
+
+for symbol in ${symbols}
+do
+    for lib in ${libs}
+    do
+        xtensa-lx106-elf-ar d ${lib} ${symbol} 
+    done
+done