From 4ef7f125076118b6cfddf555068212b1b5be7987 Mon Sep 17 00:00:00 2001
From: "Laio O. Seman" <laioseman@gmail.com>
Date: Wed, 14 Feb 2024 14:38:50 -0300
Subject: [PATCH 1/2] add(dash): pgo

---
 dash/PKGBUILD      | 62 ++++++++++++++++++++++++++++++++++
 dash/workload.dash | 83 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 145 insertions(+)
 create mode 100644 dash/PKGBUILD
 create mode 100644 dash/workload.dash

diff --git a/dash/PKGBUILD b/dash/PKGBUILD
new file mode 100644
index 00000000..ee3254b8
--- /dev/null
+++ b/dash/PKGBUILD
@@ -0,0 +1,62 @@
+# Maintainer: Levente Polyak <anthraxx[at]archlinux[dot]org>
+# Contributor: Dan McGee <dan@archlinux.org>
+
+pkgname=dash
+pkgver=0.5.12
+pkgrel=2
+pkgdesc='POSIX compliant shell that aims to be as small as possible'
+url='http://gondor.apana.org.au/~herbert/dash/'
+arch=('x86_64')
+license=('BSD')
+depends=('glibc' 'libedit' 'libedit.so')
+install=dash.install
+source=(https://git.kernel.org/pub/scm/utils/dash/dash.git/snapshot/${pkgname}-${pkgver}.tar.gz
+    workload.dash)
+sha512sums=('a5d2347465c0bad09a2921ecb55fb4e7fe451d627ed43c1da82b92259b539857c7a7f153dfee73cea4befcbb34388bb3585845148631262dfe6dec87390f049c')
+b2sums=('e0751946fa3b6d513901cc98f3f39a48013f624b9a8ffd699e849456604b856866bd6da268560e6ffa9ec5b91976930d830297031804fdcbab82a953720ee973')
+
+prepare() {
+    cd ${pkgname}-${pkgver}
+    autoreconf -fiv
+}
+
+build() {
+
+    export CFLAGS="${CFLAGS} -fprofile-generate -fprofile-update=atomic -fprofile-partial-training"
+    export CXXFLAGS="${CXXFLAGS} -fprofile-generate -fprofile-update=atomic -fprofile-partial-training"
+
+    cd ${pkgname}-${pkgver}
+    ./configure \
+        --prefix=/usr \
+        --bindir=/usr/bin \
+        --mandir=/usr/share/man \
+        --exec-prefix="" \
+        --with-libedit
+    make V=1
+
+    cd ..
+    ${pkgname}-${pkgver}/src/dash workload.dash
+
+    export CFLAGS="${CFLAGS//-fprofile-generate/}"
+    export CFLAGS="${CFLAGS//-fprofile-update=atomic/}"
+    export CXXFLAGS="${CXXFLAGS//-fprofile-generate/}"
+    export CXXFLAGS="${CXXFLAGS//-fprofile-update=atomic/}"
+    export CFLAGS="${CFLAGS} -fprofile-use"
+
+    cd ${pkgname}-${pkgver}
+    make clean
+    ./configure \
+        --prefix=/usr \
+        --bindir=/usr/bin \
+        --mandir=/usr/share/man \
+        --exec-prefix="" \
+        --with-libedit
+    make V=1
+
+}
+
+package() {
+    cd ${pkgname}-${pkgver}
+    make DESTDIR="${pkgdir}" install
+    install -Dm 644 COPYING -t "${pkgdir}/usr/share/licenses/${pkgname}"
+}
diff --git a/dash/workload.dash b/dash/workload.dash
new file mode 100644
index 00000000..37272fa7
--- /dev/null
+++ b/dash/workload.dash
@@ -0,0 +1,83 @@
+#!/bin/dash
+
+# Increase complexity of mathematical computations
+calculate_fibonacci() {
+    n=$1
+    if [ $n -le 1 ]; then
+        echo $n
+    else
+        echo $(( $(calculate_fibonacci $((n - 1))) + $(calculate_fibonacci $((n - 2))) ))
+    fi
+}
+
+# Calculating a larger set of prime numbers
+calculate_primes() {
+    n=$1
+    count=0
+    number=2
+    primes=""
+    while [ $count -lt $n ]; do
+        is_prime=1
+        for i in $(seq 2 $(expr $number / 2)); do
+            if [ $(expr $number % $i) -eq 0 ]; then
+                is_prime=0
+                break
+            fi
+        done
+        if [ $is_prime -eq 1 ]; then
+            primes="$primes $number"
+            count=$((count + 1))
+        fi
+        number=$((number + 1))
+    done
+    echo $primes
+}
+
+# Simulating heavier data processing
+generate_large_data() {
+    for i in $(seq 1 100000); do
+        echo $RANDOM
+    done > large_data.txt
+}
+
+sort_large_data() {
+    sort -n large_data.txt -o sorted_large_data.txt
+}
+
+filter_large_data() {
+    awk '{if ($1 % 2 == 0) print}' sorted_large_data.txt > filtered_large_data.txt
+}
+
+# More complex file I/O operations
+complex_file_operations() {
+    echo "Generating large files for I/O operations..."
+    for i in $(seq 1 10); do
+        for j in $(seq 1 10000); do
+            echo "Line $j of file $i" >> "file_${i}.txt"
+        done
+    done
+
+    echo "Reading from large files..."
+    for i in $(seq 1 10); do
+        while IFS= read -r line; do
+            echo "/dev/null"
+        done < "file_${i}.txt"
+    done
+}
+
+# Main execution starts here
+echo "Calculating Fibonacci for 20..."
+calculate_fibonacci 20
+
+echo "Calculating first 100 prime numbers..."
+calculate_primes 100
+
+echo "Generating, sorting, and filtering large dataset..."
+generate_large_data
+sort_large_data
+filter_large_data
+
+echo "Performing complex file write and read operations..."
+complex_file_operations
+
+echo "All tasks completed."

From 894ce8512e57ea61f6f9a71cca6807eb816f4d29 Mon Sep 17 00:00:00 2001
From: "Laio O. Seman" <laioseman@gmail.com>
Date: Wed, 14 Feb 2024 14:41:20 -0300
Subject: [PATCH 2/2] fix(dash): add missing post-install

---
 dash/dash.install | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 dash/dash.install

diff --git a/dash/dash.install b/dash/dash.install
new file mode 100644
index 00000000..6b04cba3
--- /dev/null
+++ b/dash/dash.install
@@ -0,0 +1,11 @@
+post_install() {
+	grep -q '/bin/dash' etc/shells || echo '/bin/dash' >> etc/shells
+}
+
+post_upgrade() {
+	post_install
+}
+
+pre_remove() {
+	sed -i '/^\/bin\/dash/d' etc/shells
+}